libs/ilbc-*/
libs/broadvoice-*/
libs/libcodec2-*/
+libs/libsilk-*/
\ No newline at end of file
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EndProject\r
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+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Silk_FIX", "libs\win32\libsilk\Silk_FIX.2015.vcxproj", "{56B91D01-9150-4BBF-AFA1-5B68AB991B76}"\r
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EndProject\r
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Download libsilk", "libs\win32\Download libsilk.2015.vcxproj", "{08782D64-E775-4E96-B707-CC633A226F32}"\r
+EndProject\r
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+++ /dev/null
-Tue Nov 1 11:51:42 CDT 2011
+++ /dev/null
-/***********************************************************************\r
-Copyright (c) 2006-2010, Skype Limited. All rights reserved. \r
-Redistribution and use in source and binary forms, with or without \r
-modification, (subject to the limitations in the disclaimer below) \r
-are permitted provided that the following conditions are met:\r
-- Redistributions of source code must retain the above copyright notice,\r
-this list of conditions and the following disclaimer.\r
-- Redistributions in binary form must reproduce the above copyright \r
-notice, this list of conditions and the following disclaimer in the \r
-documentation and/or other materials provided with the distribution.\r
-- Neither the name of Skype Limited, nor the names of specific \r
-contributors, may be used to endorse or promote products derived from \r
-this software without specific prior written permission.\r
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED \r
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND \r
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,\r
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND \r
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE \r
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, \r
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\r
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF \r
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON \r
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT \r
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE \r
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
-***********************************************************************/\r
+++ /dev/null
-Installation Instructions
-*************************
-
-Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005,
-2006, 2007, 2008, 2009 Free Software Foundation, Inc.
-
- Copying and distribution of this file, with or without modification,
-are permitted in any medium without royalty provided the copyright
-notice and this notice are preserved. This file is offered as-is,
-without warranty of any kind.
-
-Basic Installation
-==================
-
- Briefly, the shell commands `./configure; make; make install' should
-configure, build, and install this package. The following
-more-detailed instructions are generic; see the `README' file for
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-in *note Makefile Conventions: (standards)Makefile Conventions.
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-definitions. Finally, it creates a shell script `config.status' that
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-debugging `configure').
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- It can also use an optional file (typically called `config.cache'
-and enabled with `--cache-file=config.cache' or simply `-C') that saves
-the results of its tests to speed up reconfiguring. Caching is
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- If you need to do unusual things to compile the package, please try
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-of `autoconf'.
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-Compilers and Options
-=====================
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-is an example:
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- ./configure CC=c99 CFLAGS=-g LIBS=-lposix
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-Compiling For Multiple Architectures
-====================================
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-directory where you want the object files and executables to go and run
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-is known as a "VPATH" build.
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-executables that work on multiple system types--known as "fat" or
-"universal" binaries--by specifying multiple `-arch' options to the
-compiler but only a single `-arch' option to the preprocessor. Like
-this:
-
- ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
- CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
- CPP="gcc -E" CXXCPP="g++ -E"
-
- This is not guaranteed to produce working output in all cases, you
-may have to build one architecture at a time and combine the results
-using the `lipo' tool if you have problems.
-
-Installation Names
-==================
-
- By default, `make install' installs the package's commands under
-`/usr/local/bin', include files under `/usr/local/include', etc. You
-can specify an installation prefix other than `/usr/local' by giving
-`configure' the option `--prefix=PREFIX', where PREFIX must be an
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-architecture-specific files and architecture-independent files. If you
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-Documentation and other data files still use the regular prefix.
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- In addition, if you use an unusual directory layout you can give
-options like `--bindir=DIR' to specify different values for particular
-kinds of files. Run `configure --help' for a list of the directories
-you can set and what kinds of files go in them. In general, the
-default for these options is expressed in terms of `${prefix}', so that
-specifying just `--prefix' will affect all of the other directory
-specifications that were not explicitly provided.
-
- The most portable way to affect installation locations is to pass the
-correct locations to `configure'; however, many packages provide one or
-both of the following shortcuts of passing variable assignments to the
-`make install' command line to change installation locations without
-having to reconfigure or recompile.
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- The first method involves providing an override variable for each
-affected directory. For example, `make install
-prefix=/alternate/directory' will choose an alternate location for all
-directory configuration variables that were expressed in terms of
-`${prefix}'. Any directories that were specified during `configure',
-but not in terms of `${prefix}', must each be overridden at install
-time for the entire installation to be relocated. The approach of
-makefile variable overrides for each directory variable is required by
-the GNU Coding Standards, and ideally causes no recompilation.
-However, some platforms have known limitations with the semantics of
-shared libraries that end up requiring recompilation when using this
-method, particularly noticeable in packages that use GNU Libtool.
-
- The second method involves providing the `DESTDIR' variable. For
-example, `make install DESTDIR=/alternate/directory' will prepend
-`/alternate/directory' before all installation names. The approach of
-`DESTDIR' overrides is not required by the GNU Coding Standards, and
-does not work on platforms that have drive letters. On the other hand,
-it does better at avoiding recompilation issues, and works well even
-when some directory options were not specified in terms of `${prefix}'
-at `configure' time.
-
-Optional Features
-=================
-
- If the package supports it, you can cause programs to be installed
-with an extra prefix or suffix on their names by giving `configure' the
-option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
-
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-execution of `make' will be. For these packages, running `./configure
---enable-silent-rules' sets the default to minimal output, which can be
-overridden with `make V=1'; while running `./configure
---disable-silent-rules' sets the default to verbose, which can be
-overridden with `make V=0'.
-
-Particular systems
-==================
-
- On HP-UX, the default C compiler is not ANSI C compatible. If GNU
-CC is not installed, it is recommended to use the following options in
-order to use an ANSI C compiler:
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- ./configure CC="cc -Ae -D_XOPEN_SOURCE=500"
-
-and if that doesn't work, install pre-built binaries of GCC for HP-UX.
-
- On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot
-parse its `<wchar.h>' header file. The option `-nodtk' can be used as
-a workaround. If GNU CC is not installed, it is therefore recommended
-to try
-
- ./configure CC="cc"
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-and if that doesn't work, try
-
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-
- On Solaris, don't put `/usr/ucb' early in your `PATH'. This
-directory contains several dysfunctional programs; working variants of
-these programs are available in `/usr/bin'. So, if you need `/usr/ucb'
-in your `PATH', put it _after_ `/usr/bin'.
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-not `/usr/local'. It is recommended to use the following options:
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- ./configure --prefix=/boot/common
-
-Specifying the System Type
-==========================
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-
- CPU-COMPANY-SYSTEM
-
-where SYSTEM can have one of these forms:
-
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- KERNEL-OS
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- See the file `config.sub' for the possible values of each field. If
-`config.sub' isn't included in this package, then this package doesn't
-need to know the machine type.
-
- If you are _building_ compiler tools for cross-compiling, you should
-use the option `--target=TYPE' to select the type of system they will
-produce code for.
-
- If you want to _use_ a cross compiler, that generates code for a
-platform different from the build platform, you should specify the
-"host" platform (i.e., that on which the generated programs will
-eventually be run) with `--host=TYPE'.
-
-Sharing Defaults
-================
-
- If you want to set default values for `configure' scripts to share,
-you can create a site shell script called `config.site' that gives
-default values for variables like `CC', `cache_file', and `prefix'.
-`configure' looks for `PREFIX/share/config.site' if it exists, then
-`PREFIX/etc/config.site' if it exists. Or, you can set the
-`CONFIG_SITE' environment variable to the location of the site script.
-A warning: not all `configure' scripts look for a site script.
-
-Defining Variables
-==================
-
- Variables not defined in a site shell script can be set in the
-environment passed to `configure'. However, some packages may run
-configure again during the build, and the customized values of these
-variables may be lost. In order to avoid this problem, you should set
-them in the `configure' command line, using `VAR=value'. For example:
-
- ./configure CC=/usr/local2/bin/gcc
-
-causes the specified `gcc' to be used as the C compiler (unless it is
-overridden in the site shell script).
-
-Unfortunately, this technique does not work for `CONFIG_SHELL' due to
-an Autoconf bug. Until the bug is fixed you can use this workaround:
-
- CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
-
-`configure' Invocation
-======================
-
- `configure' recognizes the following options to control how it
-operates.
-
-`--help'
-`-h'
- Print a summary of all of the options to `configure', and exit.
-
-`--help=short'
-`--help=recursive'
- Print a summary of the options unique to this package's
- `configure', and exit. The `short' variant lists options used
- only in the top level, while the `recursive' variant lists options
- also present in any nested packages.
-
-`--version'
-`-V'
- Print the version of Autoconf used to generate the `configure'
- script, and exit.
-
-`--cache-file=FILE'
- Enable the cache: use and save the results of the tests in FILE,
- traditionally `config.cache'. FILE defaults to `/dev/null' to
- disable caching.
-
-`--config-cache'
-`-C'
- Alias for `--cache-file=config.cache'.
-
-`--quiet'
-`--silent'
-`-q'
- Do not print messages saying which checks are being made. To
- suppress all normal output, redirect it to `/dev/null' (any error
- messages will still be shown).
-
-`--srcdir=DIR'
- Look for the package's source code in directory DIR. Usually
- `configure' can determine that directory automatically.
-
-`--prefix=DIR'
- Use DIR as the installation prefix. *note Installation Names::
- for more details, including other options available for fine-tuning
- the installation locations.
-
-`--no-create'
-`-n'
- Run the configure checks, but stop before creating any output
- files.
-
-`configure' also accepts some other, not widely useful, options. Run
-`configure --help' for more details.
-
+++ /dev/null
-AM_CFLAGS = -Isrc -I$(abs_srcdir)/src -Iinterface -I$(abs_srcdir)/interface -fPIC -O3
-AUTOMAKE_OPTIONS = gnu
-NAME = libSKP_SILK_SDK
-AM_CPPFLAGS = $(AM_CFLAGS)
-
-EXTRA_DIST = Silk_SDK.sln \
-src/Silk_FIX.vcproj \
-test/Encoder.c \
-test/Enc_SDK.vcproj \
-test/Decoder.c \
-test/Dec_SDK.vcproj \
-test/signalCompare.c \
-test/SignalCompare.vcproj
-
-lib_LTLIBRARIES = libSKP_SILK_SDK.la
-libSKP_SILK_SDK_la_SOURCES = src/SKP_Silk_A2NLSF.c \
-src/SKP_Silk_ana_filt_bank_1.c \
-src/SKP_Silk_apply_sine_window_new.c \
-src/SKP_Silk_array_maxabs.c \
-src/SKP_Silk_autocorr.c \
-src/SKP_Silk_biquad.c \
-src/SKP_Silk_biquad_alt.c \
-src/SKP_Silk_burg_modified.c \
-src/SKP_Silk_bwexpander.c \
-src/SKP_Silk_bwexpander_32.c \
-src/SKP_Silk_CNG.c \
-src/SKP_Silk_code_signs.c \
-src/SKP_Silk_control_audio_bandwidth.c \
-src/SKP_Silk_control_codec_FIX.c \
-src/SKP_Silk_corrMatrix_FIX.c \
-src/SKP_Silk_create_init_destroy.c \
-src/SKP_Silk_dec_API.c \
-src/SKP_Silk_decode_core.c \
-src/SKP_Silk_decode_frame.c \
-src/SKP_Silk_decode_parameters.c \
-src/SKP_Silk_decode_pitch.c \
-src/SKP_Silk_decode_pulses.c \
-src/SKP_Silk_decoder_set_fs.c \
-src/SKP_Silk_detect_SWB_input.c \
-src/SKP_Silk_enc_API.c \
-src/SKP_Silk_encode_frame_FIX.c \
-src/SKP_Silk_encode_parameters.c \
-src/SKP_Silk_encode_pulses.c \
-src/SKP_Silk_find_LPC_FIX.c \
-src/SKP_Silk_find_LTP_FIX.c \
-src/SKP_Silk_find_pitch_lags_FIX.c \
-src/SKP_Silk_find_pred_coefs_FIX.c \
-src/SKP_Silk_gain_quant.c \
-src/SKP_Silk_HP_variable_cutoff_FIX.c \
-src/SKP_Silk_init_encoder_FIX.c \
-src/SKP_Silk_inner_prod_aligned.c \
-src/SKP_Silk_interpolate.c \
-src/SKP_Silk_k2a.c \
-src/SKP_Silk_k2a_Q16.c \
-src/SKP_Silk_LBRR_reset.c \
-src/SKP_Silk_LPC_inv_pred_gain.c \
-src/SKP_Silk_LPC_synthesis_filter.c \
-src/SKP_Silk_LPC_synthesis_order16.c \
-src/SKP_Silk_LP_variable_cutoff.c \
-src/SKP_Silk_LSF_cos_table.c \
-src/SKP_Silk_LTP_analysis_filter_FIX.c \
-src/SKP_Silk_LTP_scale_ctrl_FIX.c \
-src/SKP_Silk_lin2log.c \
-src/SKP_Silk_log2lin.c \
-src/SKP_Silk_MA.c \
-src/SKP_Silk_NLSF2A.c \
-src/SKP_Silk_NLSF2A_stable.c \
-src/SKP_Silk_NLSF_MSVQ_decode.c \
-src/SKP_Silk_NLSF_MSVQ_encode_FIX.c \
-src/SKP_Silk_NLSF_VQ_rate_distortion_FIX.c \
-src/SKP_Silk_NLSF_VQ_sum_error_FIX.c \
-src/SKP_Silk_NLSF_VQ_weights_laroia.c \
-src/SKP_Silk_NLSF_stabilize.c \
-src/SKP_Silk_NSQ.c \
-src/SKP_Silk_NSQ_del_dec.c \
-src/SKP_Silk_noise_shape_analysis_FIX.c \
-src/SKP_Silk_PLC.c \
-src/SKP_Silk_pitch_analysis_core.c \
-src/SKP_Silk_pitch_est_tables.c \
-src/SKP_Silk_prefilter_FIX.c \
-src/SKP_Silk_process_NLSFs_FIX.c \
-src/SKP_Silk_process_gains_FIX.c \
-src/SKP_Silk_quant_LTP_gains_FIX.c \
-src/SKP_Silk_range_coder.c \
-src/SKP_Silk_regularize_correlations_FIX.c \
-src/SKP_Silk_resampler.c \
-src/SKP_Silk_resampler_down2.c \
-src/SKP_Silk_resampler_down2_3.c \
-src/SKP_Silk_resampler_down3.c \
-src/SKP_Silk_resampler_private_AR2.c \
-src/SKP_Silk_resampler_private_ARMA4.c \
-src/SKP_Silk_resampler_private_IIR_FIR.c \
-src/SKP_Silk_resampler_private_copy.c \
-src/SKP_Silk_resampler_private_down4.c \
-src/SKP_Silk_resampler_private_down_FIR.c \
-src/SKP_Silk_resampler_private_up2_HQ.c \
-src/SKP_Silk_resampler_private_up4.c \
-src/SKP_Silk_resampler_rom.c \
-src/SKP_Silk_resampler_up2.c \
-src/SKP_Silk_residual_energy16_FIX.c \
-src/SKP_Silk_residual_energy_FIX.c \
-src/SKP_Silk_scale_copy_vector16.c \
-src/SKP_Silk_scale_vector.c \
-src/SKP_Silk_schur.c \
-src/SKP_Silk_schur64.c \
-src/SKP_Silk_shell_coder.c \
-src/SKP_Silk_sigm_Q15.c \
-src/SKP_Silk_solve_LS_FIX.c \
-src/SKP_Silk_sort.c \
-src/SKP_Silk_sum_sqr_shift.c \
-src/SKP_Silk_tables_LTP.c \
-src/SKP_Silk_tables_NLSF_CB0_10.c \
-src/SKP_Silk_tables_NLSF_CB0_16.c \
-src/SKP_Silk_tables_NLSF_CB1_10.c \
-src/SKP_Silk_tables_NLSF_CB1_16.c \
-src/SKP_Silk_tables_gain.c \
-src/SKP_Silk_tables_other.c \
-src/SKP_Silk_tables_pitch_lag.c \
-src/SKP_Silk_tables_pulses_per_block.c \
-src/SKP_Silk_tables_sign.c \
-src/SKP_Silk_tables_type_offset.c \
-src/SKP_Silk_VAD.c \
-src/SKP_Silk_VQ_nearest_neighbor_FIX.c \
-src/SKP_Silk_warped_autocorrelation_FIX.c
-
-
-libSKP_SILK_SDK_la_CFLAGS = $(AM_CFLAGS)
-libSKP_SILK_SDK_la_LDFLAGS = $(LIBS)
-
-library_includedir = $(prefix)/include/silk
-library_include_HEADERS = src/SKP_Silk_common_pitch_est_defines.h \
-src/SKP_Silk_define.h \
-src/SKP_Silk_Inlines.h \
-src/SKP_Silk_macros.h \
-src/SKP_Silk_main.h \
-src/SKP_Silk_main_FIX.h \
-src/SKP_Silk_pitch_est_defines.h \
-src/SKP_Silk_PLC.h \
-src/SKP_Silk_resampler_private.h \
-src/SKP_Silk_resampler_rom.h \
-src/SKP_Silk_resampler_structs.h \
-src/SKP_Silk_SigProc_FIX.h \
-src/SKP_Silk_setup_complexity.h \
-src/SKP_Silk_structs.h \
-src/SKP_Silk_structs_FIX.h \
-src/SKP_Silk_tables.h \
-src/SKP_Silk_tables_NLSF_CB0_10.h \
-src/SKP_Silk_tables_NLSF_CB0_16.h \
-src/SKP_Silk_tables_NLSF_CB1_10.h \
-src/SKP_Silk_tables_NLSF_CB1_16.h \
-src/SKP_Silk_tuning_parameters.h \
-interface/SKP_Silk_control.h \
-interface/SKP_Silk_errors.h \
-interface/SKP_Silk_SDK_API.h \
-interface/SKP_Silk_typedef.h
-
-bin_PROGRAMS = Encoder Decoder signalCompare
-Encoder_SOURCES = test/Encoder.c $(top_builddir)/interface/SKP_Silk_SDK_API.h
-Encoder_LDADD = $(lib_LTLIBRARIES)
-Encoder_LDFLAGS = $(LIBS)
-
-Decoder_SOURCES = test/Decoder.c $(top_builddir)/interface/SKP_Silk_SDK_API.h
-Decoder_LDADD = $(lib_LTLIBRARIES)
-Decoder_LDFLAGS = $(LIBS)
-
-signalCompare_SOURCES = test/signalCompare.c $(top_builddir)/interface/SKP_Silk_SDK_API.h
-signalCompare_LDADD = $(lib_LTLIBRARIES)
-signalCompare_LDFLAGS = $(LIBS)
+++ /dev/null
-\r
-Microsoft Visual Studio Solution File, Format Version 9.00\r
-# Visual Studio 2005\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Silk_FIX", "src\Silk_FIX.vcproj", "{56B91D01-9150-4BBF-AFA1-5B68AB991B76}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Dec_SDK", "test\Dec_SDK.vcproj", "{82685D7F-0589-42BD-877C-31A952D53A8E}"\r
- ProjectSection(ProjectDependencies) = postProject\r
- {56B91D01-9150-4BBF-AFA1-5B68AB991B76} = {56B91D01-9150-4BBF-AFA1-5B68AB991B76}\r
- EndProjectSection\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "SignalCompare", "test\SignalCompare.vcproj", "{7FE8F544-9175-40C3-A187-7F15CE9A75D8}"\r
-EndProject\r
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Enc_SDK", "test\Enc_SDK.vcproj", "{6D97A8EF-5724-4D85-8BF4-C583714BBA78}"\r
- ProjectSection(ProjectDependencies) = postProject\r
- {56B91D01-9150-4BBF-AFA1-5B68AB991B76} = {56B91D01-9150-4BBF-AFA1-5B68AB991B76}\r
- EndProjectSection\r
-EndProject\r
-Global\r
- GlobalSection(SolutionConfigurationPlatforms) = preSolution\r
- Debug|Win32 = Debug|Win32\r
- Release|Win32 = Release|Win32\r
- EndGlobalSection\r
- GlobalSection(ProjectConfigurationPlatforms) = postSolution\r
- {56B91D01-9150-4BBF-AFA1-5B68AB991B76}.Debug|Win32.ActiveCfg = Debug|Win32\r
- {56B91D01-9150-4BBF-AFA1-5B68AB991B76}.Debug|Win32.Build.0 = Debug|Win32\r
- {56B91D01-9150-4BBF-AFA1-5B68AB991B76}.Release|Win32.ActiveCfg = Release|Win32\r
- {56B91D01-9150-4BBF-AFA1-5B68AB991B76}.Release|Win32.Build.0 = Release|Win32\r
- {82685D7F-0589-42BD-877C-31A952D53A8E}.Debug|Win32.ActiveCfg = Debug|Win32\r
- {82685D7F-0589-42BD-877C-31A952D53A8E}.Debug|Win32.Build.0 = Debug|Win32\r
- {82685D7F-0589-42BD-877C-31A952D53A8E}.Release|Win32.ActiveCfg = Release|Win32\r
- {82685D7F-0589-42BD-877C-31A952D53A8E}.Release|Win32.Build.0 = Release|Win32\r
- {7FE8F544-9175-40C3-A187-7F15CE9A75D8}.Debug|Win32.ActiveCfg = Debug|Win32\r
- {7FE8F544-9175-40C3-A187-7F15CE9A75D8}.Debug|Win32.Build.0 = Debug|Win32\r
- {7FE8F544-9175-40C3-A187-7F15CE9A75D8}.Release|Win32.ActiveCfg = Release|Win32\r
- {7FE8F544-9175-40C3-A187-7F15CE9A75D8}.Release|Win32.Build.0 = Release|Win32\r
- {6D97A8EF-5724-4D85-8BF4-C583714BBA78}.Debug|Win32.ActiveCfg = Debug|Win32\r
- {6D97A8EF-5724-4D85-8BF4-C583714BBA78}.Debug|Win32.Build.0 = Debug|Win32\r
- {6D97A8EF-5724-4D85-8BF4-C583714BBA78}.Release|Win32.ActiveCfg = Release|Win32\r
- {6D97A8EF-5724-4D85-8BF4-C583714BBA78}.Release|Win32.Build.0 = Release|Win32\r
- EndGlobalSection\r
- GlobalSection(SolutionProperties) = preSolution\r
- HideSolutionNode = FALSE\r
- EndGlobalSection\r
-EndGlobal\r
+++ /dev/null
-# -*- Autoconf -*-
-# Process this file with autoconf to produce a configure script.
-
-AC_PREREQ([2.59])
-AC_INIT(libSKP_SILK_SDK, 1.0.8, brian@freeswitch.org, libSKP_SILK_SDK)
-AM_INIT_AUTOMAKE
-
-# Checks for programs.
-AC_PROG_CC
-AC_PROG_LIBTOOL
-
-# Checks for header files.
-AC_HEADER_STDC
-AC_CHECK_HEADERS([float.h stdint.h stdlib.h string.h])
-
-# Checks for typedefs, structures, and compiler characteristics.
-AC_C_CONST
-AC_C_INLINE
-AC_TYPE_SIZE_T
-
-# Checks for library functions.
-AC_FUNC_MALLOC
-AC_CHECK_LIB([m],[pow])
-
-# Absolute source/build directory
-abs_srcdir=`(cd $srcdir && pwd)`
-abs_builddir=`pwd`
-AC_SUBST(abs_srcdir)
-AC_SUBST(abs_builddir)
-
-AC_CONFIG_FILES([Makefile])
-AC_OUTPUT
+++ /dev/null
-#! /bin/sh
-srcpath=$(dirname $0 2>/dev/null ) || srcpath="."
-$srcpath/configure "$@" --disable-shared --with-pic
-
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_SDK_API_H
-#define SKP_SILK_SDK_API_H
-
-#include "SKP_Silk_control.h"
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_errors.h"
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-#define SILK_MAX_FRAMES_PER_PACKET 5
-
-/* Struct for TOC (Table of Contents) */
-typedef struct {
- SKP_int framesInPacket; /* Number of 20 ms frames in packet */
- SKP_int fs_kHz; /* Sampling frequency in packet */
- SKP_int inbandLBRR; /* Does packet contain LBRR information */
- SKP_int corrupt; /* Packet is corrupt */
- SKP_int vadFlags[ SILK_MAX_FRAMES_PER_PACKET ]; /* VAD flag for each frame in packet */
- SKP_int sigtypeFlags[ SILK_MAX_FRAMES_PER_PACKET ]; /* Signal type for each frame in packet */
-} SKP_Silk_TOC_struct;
-
-/****************************************/
-/* Encoder functions */
-/****************************************/
-
-/***********************************************/
-/* Get size in bytes of the Silk encoder state */
-/***********************************************/
-SKP_int SKP_Silk_SDK_Get_Encoder_Size(
- SKP_int32 *encSizeBytes /* O: Number of bytes in SILK encoder state */
-);
-
-/*************************/
-/* Init or reset encoder */
-/*************************/
-SKP_int SKP_Silk_SDK_InitEncoder(
- void *encState, /* I/O: State */
- SKP_SILK_SDK_EncControlStruct *encStatus /* O: Encoder Status */
-);
-
-/***************************************/
-/* Read control structure from encoder */
-/***************************************/
-SKP_int SKP_Silk_SDK_QueryEncoder(
- const void *encState, /* I: State */
- SKP_SILK_SDK_EncControlStruct *encStatus /* O: Encoder Status */
-);
-
-/**************************/
-/* Encode frame with Silk */
-/**************************/
-SKP_int SKP_Silk_SDK_Encode(
- void *encState, /* I/O: State */
- const SKP_SILK_SDK_EncControlStruct *encControl, /* I: Control status */
- const SKP_int16 *samplesIn, /* I: Speech sample input vector */
- SKP_int nSamplesIn, /* I: Number of samples in input vector */
- SKP_uint8 *outData, /* O: Encoded output vector */
- SKP_int16 *nBytesOut /* I/O: Number of bytes in outData (input: Max bytes) */
-);
-
-/****************************************/
-/* Decoder functions */
-/****************************************/
-
-/***********************************************/
-/* Get size in bytes of the Silk decoder state */
-/***********************************************/
-SKP_int SKP_Silk_SDK_Get_Decoder_Size(
- SKP_int32 *decSizeBytes /* O: Number of bytes in SILK decoder state */
-);
-
-/*************************/
-/* Init or Reset decoder */
-/*************************/
-SKP_int SKP_Silk_SDK_InitDecoder(
- void *decState /* I/O: State */
-);
-
-/******************/
-/* Decode a frame */
-/******************/
-SKP_int SKP_Silk_SDK_Decode(
- void* decState, /* I/O: State */
- SKP_SILK_SDK_DecControlStruct* decControl, /* I/O: Control Structure */
- SKP_int lostFlag, /* I: 0: no loss, 1 loss */
- const SKP_uint8 *inData, /* I: Encoded input vector */
- const SKP_int nBytesIn, /* I: Number of input bytes */
- SKP_int16 *samplesOut, /* O: Decoded output speech vector */
- SKP_int16 *nSamplesOut /* I/O: Number of samples (vector/decoded) */
-);
-
-/***************************************************************/
-/* Find Low Bit Rate Redundancy (LBRR) information in a packet */
-/***************************************************************/
-void SKP_Silk_SDK_search_for_LBRR(
- const SKP_uint8 *inData, /* I: Encoded input vector */
- const SKP_int nBytesIn, /* I: Number of input Bytes */
- SKP_int lost_offset, /* I: Offset from lost packet */
- SKP_uint8 *LBRRData, /* O: LBRR payload */
- SKP_int16 *nLBRRBytes /* O: Number of LBRR Bytes */
-);
-
-/**************************************/
-/* Get table of contents for a packet */
-/**************************************/
-void SKP_Silk_SDK_get_TOC(
- const SKP_uint8 *inData, /* I: Encoded input vector */
- const SKP_int nBytesIn, /* I: Number of input bytes */
- SKP_Silk_TOC_struct *Silk_TOC /* O: Table of contents */
-);
-
-/**************************/
-/* Get the version number */
-/**************************/
-/* Return a pointer to string specifying the version */
-const char *SKP_Silk_SDK_get_version();
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_CONTROL_H
-#define SKP_SILK_CONTROL_H
-
-#include "SKP_Silk_typedef.h"
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-/***********************************************/
-/* Structure for controlling encoder operation */
-/***********************************************/
-typedef struct {
- /* I: Input signal sampling rate in Hertz; 8000/12000/16000/24000 */
- SKP_int32 API_sampleRate;
-
- /* I: Maximum internal sampling rate in Hertz; 8000/12000/16000/24000 */
- SKP_int32 maxInternalSampleRate;
-
- /* I: Number of samples per packet; must be equivalent of 20, 40, 60, 80 or 100 ms */
- SKP_int packetSize;
-
- /* I: Bitrate during active speech in bits/second; internally limited */
- SKP_int32 bitRate;
-
- /* I: Uplink packet loss in percent (0-100) */
- SKP_int packetLossPercentage;
-
- /* I: Complexity mode; 0 is lowest; 1 is medium and 2 is highest complexity */
- SKP_int complexity;
-
- /* I: Flag to enable in-band Forward Error Correction (FEC); 0/1 */
- SKP_int useInBandFEC;
-
- /* I: Flag to enable discontinuous transmission (DTX); 0/1 */
- SKP_int useDTX;
-} SKP_SILK_SDK_EncControlStruct;
-
-/**************************************************************************/
-/* Structure for controlling decoder operation and reading decoder status */
-/**************************************************************************/
-typedef struct {
- /* I: Output signal sampling rate in Hertz; 8000/12000/16000/24000 */
- SKP_int32 API_sampleRate;
-
- /* O: Number of samples per frame */
- SKP_int frameSize;
-
- /* O: Frames per packet 1, 2, 3, 4, 5 */
- SKP_int framesPerPacket;
-
- /* O: Flag to indicate that the decoder has remaining payloads internally */
- SKP_int moreInternalDecoderFrames;
-
- /* O: Distance between main payload and redundant payload in packets */
- SKP_int inBandFECOffset;
-} SKP_SILK_SDK_DecControlStruct;
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_ERRORS_H
-#define SKP_SILK_ERRORS_H
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-/******************/
-/* Error messages */
-/******************/
-#define SKP_SILK_NO_ERROR 0
-
-/**************************/
-/* Encoder error messages */
-/**************************/
-
-/* Input length is not a multiplum of 10 ms, or length is longer than the packet length */
-#define SKP_SILK_ENC_INPUT_INVALID_NO_OF_SAMPLES -1
-
-/* Sampling frequency not 8000, 12000, 16000 or 24000 Hertz */
-#define SKP_SILK_ENC_FS_NOT_SUPPORTED -2
-
-/* Packet size not 20, 40, 60, 80 or 100 ms */
-#define SKP_SILK_ENC_PACKET_SIZE_NOT_SUPPORTED -3
-
-/* Allocated payload buffer too short */
-#define SKP_SILK_ENC_PAYLOAD_BUF_TOO_SHORT -4
-
-/* Loss rate not between 0 and 100 percent */
-#define SKP_SILK_ENC_INVALID_LOSS_RATE -5
-
-/* Complexity setting not valid, use 0, 1 or 2 */
-#define SKP_SILK_ENC_INVALID_COMPLEXITY_SETTING -6
-
-/* Inband FEC setting not valid, use 0 or 1 */
-#define SKP_SILK_ENC_INVALID_INBAND_FEC_SETTING -7
-
-/* DTX setting not valid, use 0 or 1 */
-#define SKP_SILK_ENC_INVALID_DTX_SETTING -8
-
-/* Internal encoder error */
-#define SKP_SILK_ENC_INTERNAL_ERROR -9
-
-/**************************/
-/* Decoder error messages */
-/**************************/
-
-/* Output sampling frequency lower than internal decoded sampling frequency */
-#define SKP_SILK_DEC_INVALID_SAMPLING_FREQUENCY -10
-
-/* Payload size exceeded the maximum allowed 1024 bytes */
-#define SKP_SILK_DEC_PAYLOAD_TOO_LARGE -11
-
-/* Payload has bit errors */
-#define SKP_SILK_DEC_PAYLOAD_ERROR -12
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef _SKP_SILK_API_TYPDEF_H_
-#define _SKP_SILK_API_TYPDEF_H_
-
-#ifndef SKP_USE_DOUBLE_PRECISION_FLOATS
-#define SKP_USE_DOUBLE_PRECISION_FLOATS 0
-#endif
-
-#include <float.h>
-#if defined( __GNUC__ )
-#include <stdint.h>
-#endif
-
-#define SKP_int int /* used for counters etc; at least 16 bits */
-#define SKP_int64 long long
-#define SKP_int32 int
-#define SKP_int16 short
-#define SKP_int8 signed char
-
-#define SKP_uint unsigned int /* used for counters etc; at least 16 bits */
-#define SKP_uint64 unsigned long long
-#define SKP_uint32 unsigned int
-#define SKP_uint16 unsigned short
-#define SKP_uint8 unsigned char
-
-#define SKP_int_ptr_size intptr_t
-
-#if SKP_USE_DOUBLE_PRECISION_FLOATS
-# define SKP_float double
-# define SKP_float_MAX DBL_MAX
-#else
-# define SKP_float float
-# define SKP_float_MAX FLT_MAX
-#endif
-
-#define SKP_INLINE static __inline
-
-#ifdef _WIN32
-# define SKP_STR_CASEINSENSITIVE_COMPARE(x, y) _stricmp(x, y)
-#else
-# define SKP_STR_CASEINSENSITIVE_COMPARE(x, y) strcasecmp(x, y)
-#endif
-
-#define SKP_int64_MAX ((SKP_int64)0x7FFFFFFFFFFFFFFFLL) // 2^63 - 1
-#define SKP_int64_MIN ((SKP_int64)0x8000000000000000LL) // -2^63
-#define SKP_int32_MAX 0x7FFFFFFF // 2^31 - 1 = 2147483647
-#define SKP_int32_MIN ((SKP_int32)0x80000000) // -2^31 = -2147483648
-#define SKP_int16_MAX 0x7FFF // 2^15 - 1 = 32767
-#define SKP_int16_MIN ((SKP_int16)0x8000) // -2^15 = -32768
-#define SKP_int8_MAX 0x7F // 2^7 - 1 = 127
-#define SKP_int8_MIN ((SKP_int8)0x80) // -2^7 = -128
-
-#define SKP_uint32_MAX 0xFFFFFFFF // 2^32 - 1 = 4294967295
-#define SKP_uint32_MIN 0x00000000
-#define SKP_uint16_MAX 0xFFFF // 2^16 - 1 = 65535
-#define SKP_uint16_MIN 0x0000
-#define SKP_uint8_MAX 0xFF // 2^8 - 1 = 255
-#define SKP_uint8_MIN 0x00
-
-#define SKP_TRUE 1
-#define SKP_FALSE 0
-
-/* assertions */
-#if (defined _WIN32 && !defined _WINCE && !defined(__GNUC__) && !defined(NO_ASSERTS))
-# ifndef SKP_assert
-# include <crtdbg.h> /* ASSERTE() */
-# define SKP_assert(COND) _ASSERTE(COND)
-# endif
-#else
-# define SKP_assert(COND)
-#endif
-
-#endif
+++ /dev/null
-************************************************************************
-Fixed Point SILK SDK 1.0.8 beta source code package
-Copyright 2010 (c), Skype Limited
-https://developer.skype.com/silk/
-************************************************************************
-
-Date: 15/06/2011 (Format: DD/MM/YYYY)
-
-I. Description
-
-This package contains files for compilation and evaluation of the fixed
-point SILK SDK library. The following is included in this package:
-
- o Source code for the fixed point SILK SDK library
- o Source code for creating encoder and decoder executables
- o Test vectors
- o Comparison tool
- o Microsoft Visual Studio solution and project files
- o Makefile for GNU C-compiler (GCC)
-
-II. Files and Folders
-
- o doc/ - contains more information about the SILK SDK
- o interface/ - contains API header files
- o src/ - contains all SILK SDK library source files
- o test/ - contains source files for testing the SILK SDK
- o test_vectors/ - contains test vectors
- o Makefile - Makefile for compiling with GCC
- o readme.txt - this file
- o Silk_SDK.sln - Visual Studio solution for all SILK SDK code
-
-III. How to use the Makefile
-
- 1. How to clean and compile the SILK SDK library:
-
- make clean lib
-
- 2. How to compile an encoder executable:
-
- make encoder
-
- 3. How to compile a decoder executable:
-
- make decoder
-
- 4. How to compile the comparison tool:
-
- make signalcompare
-
- 5. How to clean and compile all of the above:
-
- make clean all
-
- 6. How to build for big endian CPU's
-
- Make clean all ADDED_DEFINES+=_SYSTEM_IS_BIG_ENDIAN
- To be able to use the test vectors with big endian CPU's the test programs
- need to be compiled in a different way. Note that the 16 bit input and output
- from the test programs will have the upper and lower bytes swapped with this setting.
-
- 7. How to use the comparison tool:
-
- See 'How to use the test vectors.txt' in the test_vectors folder.
-
-IV. History
-
- Version 1.0.8 - Improved noise shaping, various other improvements, and various bugfixes. Added a MIPS version
- Version 1.0.7 - Updated with bugfixes for LBRR and pitch estimator. SignalCompare updated
- Version 1.0.6 - Updated with bugfixes for ARM builds
- Version 1.0.5 - Updated with bugfixes for ARM builds
- Version 1.0.4 - Updated with various bugfixes and improvements, including some API changes
- Added support for big endian platforms
- Added resampler support for additional API sample rates
- Version 1.0.3 - Updated with various bugfixes and improvements
- Version 1.0.2 - Updated with various bugfixes and improvements
- Version 1.0.1 - First beta source code release
-
-V. Compatibility
-
- This package has been tested on the following platforms:
-
- Windows XP Home and Professional
- Windows Vista, 32-bit version
- Mac OSX intel
- Mac OSX ppc
- Ubuntu Linux 9.10, 64-bit version
-
-VI. Known Issues
-
- None
-
-VII. Additional Resources
-
- For more information, visit the SILK SDK web site at:
-
- <https://developer.skype.com/silk/>
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* Conversion between prediction filter coefficients and NLSFs */
-/* Requires the order to be an even number */
-/* A piecewise linear approximation maps LSF <-> cos(LSF) */
-/* Therefore the result is not accurate NLSFs, but the two */
-/* function are accurate inverses of each other */
-
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Number of binary divisions */
-#define BIN_DIV_STEPS_A2NLSF_FIX 3 /* must be no higher than 16 - log2( LSF_COS_TAB_SZ_FIX ) */
-#define QPoly 16
-#define MAX_ITERATIONS_A2NLSF_FIX 30
-
-/* Flag for using 2x as many cosine sampling points, reduces the risk of missing a root */
-#define OVERSAMPLE_COSINE_TABLE 0
-
-/* Helper function for A2NLSF(..) */
-/* Transforms polynomials from cos(n*f) to cos(f)^n */
-SKP_INLINE void SKP_Silk_A2NLSF_trans_poly(
- SKP_int32 *p, /* I/O Polynomial */
- const SKP_int dd /* I Polynomial order (= filter order / 2 ) */
-)
-{
- SKP_int k, n;
-
- for( k = 2; k <= dd; k++ ) {
- for( n = dd; n > k; n-- ) {
- p[ n - 2 ] -= p[ n ];
- }
- p[ k - 2 ] -= SKP_LSHIFT( p[ k ], 1 );
- }
-}
-/* Helper function for A2NLSF(..) */
-/* Polynomial evaluation */
-SKP_INLINE SKP_int32 SKP_Silk_A2NLSF_eval_poly( /* return the polynomial evaluation, in QPoly */
- SKP_int32 *p, /* I Polynomial, QPoly */
- const SKP_int32 x, /* I Evaluation point, Q12 */
- const SKP_int dd /* I Order */
-)
-{
- SKP_int n;
- SKP_int32 x_Q16, y32;
-
- y32 = p[ dd ]; /* QPoly */
- x_Q16 = SKP_LSHIFT( x, 4 );
- for( n = dd - 1; n >= 0; n-- ) {
- y32 = SKP_SMLAWW( p[ n ], y32, x_Q16 ); /* QPoly */
- }
- return y32;
-}
-
-SKP_INLINE void SKP_Silk_A2NLSF_init(
- const SKP_int32 *a_Q16,
- SKP_int32 *P,
- SKP_int32 *Q,
- const SKP_int dd
-)
-{
- SKP_int k;
-
- /* Convert filter coefs to even and odd polynomials */
- P[dd] = SKP_LSHIFT( 1, QPoly );
- Q[dd] = SKP_LSHIFT( 1, QPoly );
- for( k = 0; k < dd; k++ ) {
-#if( QPoly < 16 )
- P[ k ] = SKP_RSHIFT_ROUND( -a_Q16[ dd - k - 1 ] - a_Q16[ dd + k ], 16 - QPoly ); /* QPoly */
- Q[ k ] = SKP_RSHIFT_ROUND( -a_Q16[ dd - k - 1 ] + a_Q16[ dd + k ], 16 - QPoly ); /* QPoly */
-#elif( Qpoly == 16 )
- P[ k ] = -a_Q16[ dd - k - 1 ] - a_Q16[ dd + k ]; // QPoly
- Q[ k ] = -a_Q16[ dd - k - 1 ] + a_Q16[ dd + k ]; // QPoly
-#else
- P[ k ] = SKP_LSHIFT( -a_Q16[ dd - k - 1 ] - a_Q16[ dd + k ], QPoly - 16 ); /* QPoly */
- Q[ k ] = SKP_LSHIFT( -a_Q16[ dd - k - 1 ] + a_Q16[ dd + k ], QPoly - 16 ); /* QPoly */
-#endif
- }
-
- /* Divide out zeros as we have that for even filter orders, */
- /* z = 1 is always a root in Q, and */
- /* z = -1 is always a root in P */
- for( k = dd; k > 0; k-- ) {
- P[ k - 1 ] -= P[ k ];
- Q[ k - 1 ] += Q[ k ];
- }
-
- /* Transform polynomials from cos(n*f) to cos(f)^n */
- SKP_Silk_A2NLSF_trans_poly( P, dd );
- SKP_Silk_A2NLSF_trans_poly( Q, dd );
-}
-
-/* Compute Normalized Line Spectral Frequencies (NLSFs) from whitening filter coefficients */
-/* If not all roots are found, the a_Q16 coefficients are bandwidth expanded until convergence. */
-void SKP_Silk_A2NLSF(
- SKP_int *NLSF, /* O Normalized Line Spectral Frequencies, Q15 (0 - (2^15-1)), [d] */
- SKP_int32 *a_Q16, /* I/O Monic whitening filter coefficients in Q16 [d] */
- const SKP_int d /* I Filter order (must be even) */
-)
-{
- SKP_int i, k, m, dd, root_ix, ffrac;
- SKP_int32 xlo, xhi, xmid;
- SKP_int32 ylo, yhi, ymid;
- SKP_int32 nom, den;
- SKP_int32 P[ SKP_Silk_MAX_ORDER_LPC / 2 + 1 ];
- SKP_int32 Q[ SKP_Silk_MAX_ORDER_LPC / 2 + 1 ];
- SKP_int32 *PQ[ 2 ];
- SKP_int32 *p;
-
- /* Store pointers to array */
- PQ[ 0 ] = P;
- PQ[ 1 ] = Q;
-
- dd = SKP_RSHIFT( d, 1 );
-
- SKP_Silk_A2NLSF_init( a_Q16, P, Q, dd );
-
- /* Find roots, alternating between P and Q */
- p = P; /* Pointer to polynomial */
-
- xlo = SKP_Silk_LSFCosTab_FIX_Q12[ 0 ]; // Q12
- ylo = SKP_Silk_A2NLSF_eval_poly( p, xlo, dd );
-
- if( ylo < 0 ) {
- /* Set the first NLSF to zero and move on to the next */
- NLSF[ 0 ] = 0;
- p = Q; /* Pointer to polynomial */
- ylo = SKP_Silk_A2NLSF_eval_poly( p, xlo, dd );
- root_ix = 1; /* Index of current root */
- } else {
- root_ix = 0; /* Index of current root */
- }
- k = 1; /* Loop counter */
- i = 0; /* Counter for bandwidth expansions applied */
- while( 1 ) {
- /* Evaluate polynomial */
-#if OVERSAMPLE_COSINE_TABLE
- xhi = SKP_Silk_LSFCosTab_FIX_Q12[ k >> 1 ] +
- ( ( SKP_Silk_LSFCosTab_FIX_Q12[ ( k + 1 ) >> 1 ] -
- SKP_Silk_LSFCosTab_FIX_Q12[ k >> 1 ] ) >> 1 ); /* Q12 */
-#else
- xhi = SKP_Silk_LSFCosTab_FIX_Q12[ k ]; /* Q12 */
-#endif
- yhi = SKP_Silk_A2NLSF_eval_poly( p, xhi, dd );
-
- /* Detect zero crossing */
- if( ( ylo <= 0 && yhi >= 0 ) || ( ylo >= 0 && yhi <= 0 ) ) {
- /* Binary division */
-#if OVERSAMPLE_COSINE_TABLE
- ffrac = -128;
-#else
- ffrac = -256;
-#endif
- for( m = 0; m < BIN_DIV_STEPS_A2NLSF_FIX; m++ ) {
- /* Evaluate polynomial */
- xmid = SKP_RSHIFT_ROUND( xlo + xhi, 1 );
- ymid = SKP_Silk_A2NLSF_eval_poly( p, xmid, dd );
-
- /* Detect zero crossing */
- if( ( ylo <= 0 && ymid >= 0 ) || ( ylo >= 0 && ymid <= 0 ) ) {
- /* Reduce frequency */
- xhi = xmid;
- yhi = ymid;
- } else {
- /* Increase frequency */
- xlo = xmid;
- ylo = ymid;
-#if OVERSAMPLE_COSINE_TABLE
- ffrac = SKP_ADD_RSHIFT( ffrac, 64, m );
-#else
- ffrac = SKP_ADD_RSHIFT( ffrac, 128, m );
-#endif
- }
- }
-
- /* Interpolate */
- if( SKP_abs( ylo ) < 65536 ) {
- /* Avoid dividing by zero */
- den = ylo - yhi;
- nom = SKP_LSHIFT( ylo, 8 - BIN_DIV_STEPS_A2NLSF_FIX ) + SKP_RSHIFT( den, 1 );
- if( den != 0 ) {
- ffrac += SKP_DIV32( nom, den );
- }
- } else {
- /* No risk of dividing by zero because abs(ylo - yhi) >= abs(ylo) >= 65536 */
- ffrac += SKP_DIV32( ylo, SKP_RSHIFT( ylo - yhi, 8 - BIN_DIV_STEPS_A2NLSF_FIX ) );
- }
-#if OVERSAMPLE_COSINE_TABLE
- NLSF[ root_ix ] = (SKP_int)SKP_min_32( SKP_LSHIFT( (SKP_int32)k, 7 ) + ffrac, SKP_int16_MAX );
-#else
- NLSF[ root_ix ] = (SKP_int)SKP_min_32( SKP_LSHIFT( (SKP_int32)k, 8 ) + ffrac, SKP_int16_MAX );
-#endif
-
- SKP_assert( NLSF[ root_ix ] >= 0 );
- SKP_assert( NLSF[ root_ix ] <= 32767 );
-
- root_ix++; /* Next root */
- if( root_ix >= d ) {
- /* Found all roots */
- break;
- }
- /* Alternate pointer to polynomial */
- p = PQ[ root_ix & 1 ];
-
- /* Evaluate polynomial */
-#if OVERSAMPLE_COSINE_TABLE
- xlo = SKP_Silk_LSFCosTab_FIX_Q12[ ( k - 1 ) >> 1 ] +
- ( ( SKP_Silk_LSFCosTab_FIX_Q12[ k >> 1 ] -
- SKP_Silk_LSFCosTab_FIX_Q12[ ( k - 1 ) >> 1 ] ) >> 1 ); // Q12
-#else
- xlo = SKP_Silk_LSFCosTab_FIX_Q12[ k - 1 ]; // Q12
-#endif
- ylo = SKP_LSHIFT( 1 - ( root_ix & 2 ), 12 );
- } else {
- /* Increment loop counter */
- k++;
- xlo = xhi;
- ylo = yhi;
-
-#if OVERSAMPLE_COSINE_TABLE
- if( k > 2 * LSF_COS_TAB_SZ_FIX ) {
-#else
- if( k > LSF_COS_TAB_SZ_FIX ) {
-#endif
- i++;
- if( i > MAX_ITERATIONS_A2NLSF_FIX ) {
- /* Set NLSFs to white spectrum and exit */
- NLSF[ 0 ] = SKP_DIV32_16( 1 << 15, d + 1 );
- for( k = 1; k < d; k++ ) {
- NLSF[ k ] = SKP_SMULBB( k + 1, NLSF[ 0 ] );
- }
- return;
- }
-
- /* Error: Apply progressively more bandwidth expansion and run again */
- SKP_Silk_bwexpander_32( a_Q16, d, 65536 - SKP_SMULBB( 10 + i, i ) ); // 10_Q16 = 0.00015
-
- SKP_Silk_A2NLSF_init( a_Q16, P, Q, dd );
- p = P; /* Pointer to polynomial */
- xlo = SKP_Silk_LSFCosTab_FIX_Q12[ 0 ]; // Q12
- ylo = SKP_Silk_A2NLSF_eval_poly( p, xlo, dd );
- if( ylo < 0 ) {
- /* Set the first NLSF to zero and move on to the next */
- NLSF[ 0 ] = 0;
- p = Q; /* Pointer to polynomial */
- ylo = SKP_Silk_A2NLSF_eval_poly( p, xlo, dd );
- root_ix = 1; /* Index of current root */
- } else {
- root_ix = 0; /* Index of current root */
- }
- k = 1; /* Reset loop counter */
- }
- }
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-/* Generates excitation for CNG LPC synthesis */
-SKP_INLINE void SKP_Silk_CNG_exc(
- SKP_int16 residual[], /* O CNG residual signal Q0 */
- SKP_int32 exc_buf_Q10[], /* I Random samples buffer Q10 */
- SKP_int32 Gain_Q16, /* I Gain to apply */
- SKP_int length, /* I Length */
- SKP_int32 *rand_seed /* I/O Seed to random index generator */
-)
-{
- SKP_int32 seed;
- SKP_int i, idx, exc_mask;
-
- exc_mask = CNG_BUF_MASK_MAX;
- while( exc_mask > length ) {
- exc_mask = SKP_RSHIFT( exc_mask, 1 );
- }
-
- seed = *rand_seed;
- for( i = 0; i < length; i++ ) {
- seed = SKP_RAND( seed );
- idx = ( SKP_int )( SKP_RSHIFT( seed, 24 ) & exc_mask );
- SKP_assert( idx >= 0 );
- SKP_assert( idx <= CNG_BUF_MASK_MAX );
- residual[ i ] = ( SKP_int16 )SKP_SAT16( SKP_RSHIFT_ROUND( SKP_SMULWW( exc_buf_Q10[ idx ], Gain_Q16 ), 10 ) );
- }
- *rand_seed = seed;
-}
-
-void SKP_Silk_CNG_Reset(
- SKP_Silk_decoder_state *psDec /* I/O Decoder state */
-)
-{
- SKP_int i, NLSF_step_Q15, NLSF_acc_Q15;
-
- NLSF_step_Q15 = SKP_DIV32_16( SKP_int16_MAX, psDec->LPC_order + 1 );
- NLSF_acc_Q15 = 0;
- for( i = 0; i < psDec->LPC_order; i++ ) {
- NLSF_acc_Q15 += NLSF_step_Q15;
- psDec->sCNG.CNG_smth_NLSF_Q15[ i ] = NLSF_acc_Q15;
- }
- psDec->sCNG.CNG_smth_Gain_Q16 = 0;
- psDec->sCNG.rand_seed = 3176576;
-}
-
-/* Updates CNG estimate, and applies the CNG when packet was lost */
-void SKP_Silk_CNG(
- SKP_Silk_decoder_state *psDec, /* I/O Decoder state */
- SKP_Silk_decoder_control *psDecCtrl, /* I/O Decoder control */
- SKP_int16 signal[], /* I/O Signal */
- SKP_int length /* I Length of residual */
-)
-{
- SKP_int i, subfr;
- SKP_int32 tmp_32, Gain_Q26, max_Gain_Q16;
- SKP_int16 LPC_buf[ MAX_LPC_ORDER ];
- SKP_int16 CNG_sig[ MAX_FRAME_LENGTH ];
- SKP_Silk_CNG_struct *psCNG;
- psCNG = &psDec->sCNG;
-
- if( psDec->fs_kHz != psCNG->fs_kHz ) {
- /* Reset state */
- SKP_Silk_CNG_Reset( psDec );
-
- psCNG->fs_kHz = psDec->fs_kHz;
- }
- if( psDec->lossCnt == 0 && psDec->vadFlag == NO_VOICE_ACTIVITY ) {
- /* Update CNG parameters */
-
- /* Smoothing of LSF's */
- for( i = 0; i < psDec->LPC_order; i++ ) {
- psCNG->CNG_smth_NLSF_Q15[ i ] += SKP_SMULWB( psDec->prevNLSF_Q15[ i ] - psCNG->CNG_smth_NLSF_Q15[ i ], CNG_NLSF_SMTH_Q16 );
- }
- /* Find the subframe with the highest gain */
- max_Gain_Q16 = 0;
- subfr = 0;
- for( i = 0; i < NB_SUBFR; i++ ) {
- if( psDecCtrl->Gains_Q16[ i ] > max_Gain_Q16 ) {
- max_Gain_Q16 = psDecCtrl->Gains_Q16[ i ];
- subfr = i;
- }
- }
- /* Update CNG excitation buffer with excitation from this subframe */
- SKP_memmove( &psCNG->CNG_exc_buf_Q10[ psDec->subfr_length ], psCNG->CNG_exc_buf_Q10, ( NB_SUBFR - 1 ) * psDec->subfr_length * sizeof( SKP_int32 ) );
- SKP_memcpy( psCNG->CNG_exc_buf_Q10, &psDec->exc_Q10[ subfr * psDec->subfr_length ], psDec->subfr_length * sizeof( SKP_int32 ) );
-
- /* Smooth gains */
- for( i = 0; i < NB_SUBFR; i++ ) {
- psCNG->CNG_smth_Gain_Q16 += SKP_SMULWB( psDecCtrl->Gains_Q16[ i ] - psCNG->CNG_smth_Gain_Q16, CNG_GAIN_SMTH_Q16 );
- }
- }
-
- /* Add CNG when packet is lost and / or when low speech activity */
- if( psDec->lossCnt ) {//|| psDec->vadFlag == NO_VOICE_ACTIVITY ) {
-
- /* Generate CNG excitation */
- SKP_Silk_CNG_exc( CNG_sig, psCNG->CNG_exc_buf_Q10,
- psCNG->CNG_smth_Gain_Q16, length, &psCNG->rand_seed );
-
- /* Convert CNG NLSF to filter representation */
- SKP_Silk_NLSF2A_stable( LPC_buf, psCNG->CNG_smth_NLSF_Q15, psDec->LPC_order );
-
- Gain_Q26 = ( SKP_int32 )1 << 26; /* 1.0 */
-
- /* Generate CNG signal, by synthesis filtering */
- if( psDec->LPC_order == 16 ) {
- SKP_Silk_LPC_synthesis_order16( CNG_sig, LPC_buf,
- Gain_Q26, psCNG->CNG_synth_state, CNG_sig, length );
- } else {
- SKP_Silk_LPC_synthesis_filter( CNG_sig, LPC_buf,
- Gain_Q26, psCNG->CNG_synth_state, CNG_sig, length, psDec->LPC_order );
- }
- /* Mix with signal */
- for( i = 0; i < length; i++ ) {
- tmp_32 = signal[ i ] + CNG_sig[ i ];
- signal[ i ] = SKP_SAT16( tmp_32 );
- }
- } else {
- SKP_memset( psCNG->CNG_synth_state, 0, psDec->LPC_order * sizeof( SKP_int32 ) );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
-
-#if HIGH_PASS_INPUT
-
-#define SKP_RADIANS_CONSTANT_Q19 1482 // 0.45f * 2.0f * 3.14159265359 / 1000
-#define SKP_LOG2_VARIABLE_HP_MIN_FREQ_Q7 809 // log(80) in Q7
-
-/* High-pass filter with cutoff frequency adaptation based on pitch lag statistics */
-void SKP_Silk_HP_variable_cutoff_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Encoder state FIX */
- SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O Encoder control FIX */
- SKP_int16 *out, /* O high-pass filtered output signal */
- const SKP_int16 *in /* I input signal */
-)
-{
- SKP_int quality_Q15;
- SKP_int32 B_Q28[ 3 ], A_Q28[ 2 ];
- SKP_int32 Fc_Q19, r_Q28, r_Q22;
- SKP_int32 pitch_freq_Hz_Q16, pitch_freq_log_Q7, delta_freq_Q7;
-
- /*********************************************/
- /* Estimate Low End of Pitch Frequency Range */
- /*********************************************/
- if( psEnc->sCmn.prev_sigtype == SIG_TYPE_VOICED ) {
- /* difference, in log domain */
- pitch_freq_Hz_Q16 = SKP_DIV32_16( SKP_LSHIFT( SKP_MUL( psEnc->sCmn.fs_kHz, 1000 ), 16 ), psEnc->sCmn.prevLag );
- pitch_freq_log_Q7 = SKP_Silk_lin2log( pitch_freq_Hz_Q16 ) - ( 16 << 7 ); //0x70
-
- /* adjustment based on quality */
- quality_Q15 = psEncCtrl->input_quality_bands_Q15[ 0 ];
- pitch_freq_log_Q7 = SKP_SUB32( pitch_freq_log_Q7, SKP_SMULWB( SKP_SMULWB( SKP_LSHIFT( quality_Q15, 2 ), quality_Q15 ),
- pitch_freq_log_Q7 - SKP_LOG2_VARIABLE_HP_MIN_FREQ_Q7 ) );
- pitch_freq_log_Q7 = SKP_ADD32( pitch_freq_log_Q7, SKP_RSHIFT( SKP_FIX_CONST( 0.6, 15 ) - quality_Q15, 9 ) );
-
- //delta_freq = pitch_freq_log - psEnc->variable_HP_smth1;
- delta_freq_Q7 = pitch_freq_log_Q7 - SKP_RSHIFT( psEnc->variable_HP_smth1_Q15, 8 );
- if( delta_freq_Q7 < 0 ) {
- /* less smoothing for decreasing pitch frequency, to track something close to the minimum */
- delta_freq_Q7 = SKP_MUL( delta_freq_Q7, 3 );
- }
-
- /* limit delta, to reduce impact of outliers */
- delta_freq_Q7 = SKP_LIMIT_32( delta_freq_Q7, -SKP_FIX_CONST( VARIABLE_HP_MAX_DELTA_FREQ, 7 ), SKP_FIX_CONST( VARIABLE_HP_MAX_DELTA_FREQ, 7 ) );
-
- /* update smoother */
- psEnc->variable_HP_smth1_Q15 = SKP_SMLAWB( psEnc->variable_HP_smth1_Q15,
- SKP_MUL( SKP_LSHIFT( psEnc->speech_activity_Q8, 1 ), delta_freq_Q7 ), SKP_FIX_CONST( VARIABLE_HP_SMTH_COEF1, 16 ) );
- }
- /* second smoother */
- psEnc->variable_HP_smth2_Q15 = SKP_SMLAWB( psEnc->variable_HP_smth2_Q15,
- psEnc->variable_HP_smth1_Q15 - psEnc->variable_HP_smth2_Q15, SKP_FIX_CONST( VARIABLE_HP_SMTH_COEF2, 16 ) );
-
- /* convert from log scale to Hertz */
- psEncCtrl->pitch_freq_low_Hz = SKP_Silk_log2lin( SKP_RSHIFT( psEnc->variable_HP_smth2_Q15, 8 ) );
-
- /* limit frequency range */
- psEncCtrl->pitch_freq_low_Hz = SKP_LIMIT_32( psEncCtrl->pitch_freq_low_Hz,
- SKP_FIX_CONST( VARIABLE_HP_MIN_FREQ, 0 ), SKP_FIX_CONST( VARIABLE_HP_MAX_FREQ, 0 ) );
-
- /********************************/
- /* Compute Filter Coefficients */
- /********************************/
- /* compute cut-off frequency, in radians */
- //Fc_num = (SKP_float)( 0.45f * 2.0f * 3.14159265359 * psEncCtrl->pitch_freq_low_Hz );
- //Fc_denom = (SKP_float)( 1e3f * psEnc->sCmn.fs_kHz );
- SKP_assert( psEncCtrl->pitch_freq_low_Hz <= SKP_int32_MAX / SKP_RADIANS_CONSTANT_Q19 );
- Fc_Q19 = SKP_DIV32_16( SKP_SMULBB( SKP_RADIANS_CONSTANT_Q19, psEncCtrl->pitch_freq_low_Hz ), psEnc->sCmn.fs_kHz ); // range: 3704 - 27787, 11-15 bits
- SKP_assert( Fc_Q19 >= 3704 );
- SKP_assert( Fc_Q19 <= 27787 );
-
- r_Q28 = SKP_FIX_CONST( 1.0, 28 ) - SKP_MUL( SKP_FIX_CONST( 0.92, 9 ), Fc_Q19 );
- SKP_assert( r_Q28 >= 255347779 );
- SKP_assert( r_Q28 <= 266690872 );
-
- /* b = r * [ 1; -2; 1 ]; */
- /* a = [ 1; -2 * r * ( 1 - 0.5 * Fc^2 ); r^2 ]; */
- B_Q28[ 0 ] = r_Q28;
- B_Q28[ 1 ] = SKP_LSHIFT( -r_Q28, 1 );
- B_Q28[ 2 ] = r_Q28;
-
- // -r * ( 2 - Fc * Fc );
- r_Q22 = SKP_RSHIFT( r_Q28, 6 );
- A_Q28[ 0 ] = SKP_SMULWW( r_Q22, SKP_SMULWW( Fc_Q19, Fc_Q19 ) - SKP_FIX_CONST( 2.0, 22 ) );
- A_Q28[ 1 ] = SKP_SMULWW( r_Q22, r_Q22 );
-
- /********************************/
- /* High-Pass Filter */
- /********************************/
- SKP_Silk_biquad_alt( in, B_Q28, A_Q28, psEnc->sCmn.In_HP_State, out, psEnc->sCmn.frame_length );
-}
-
-#endif // HIGH_PASS_INPUT
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/*! \file SKP_Silk_Inlines.h
- * \brief SigProcFix_Inlines.h defines inline signal processing functions.
- */
-
-#ifndef _SKP_SILK_FIX_INLINES_H_
-#define _SKP_SILK_FIX_INLINES_H_
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-/* count leading zeros of SKP_int64 */
-SKP_INLINE SKP_int32 SKP_Silk_CLZ64(SKP_int64 in)
-{
- SKP_int32 in_upper;
-
- in_upper = (SKP_int32)SKP_RSHIFT64(in, 32);
- if (in_upper == 0) {
- /* Search in the lower 32 bits */
- return 32 + SKP_Silk_CLZ32( (SKP_int32) in );
- } else {
- /* Search in the upper 32 bits */
- return SKP_Silk_CLZ32( in_upper );
- }
-}
-
-/* get number of leading zeros and fractional part (the bits right after the leading one */
-SKP_INLINE void SKP_Silk_CLZ_FRAC(SKP_int32 in, /* I: input */
- SKP_int32 *lz, /* O: number of leading zeros */
- SKP_int32 *frac_Q7) /* O: the 7 bits right after the leading one */
-{
- SKP_int32 lzeros = SKP_Silk_CLZ32(in);
-
- * lz = lzeros;
- * frac_Q7 = SKP_ROR32(in, 24 - lzeros) & 0x7f;
-}
-
-/* Approximation of square root */
-/* Accuracy: < +/- 10% for output values > 15 */
-/* < +/- 2.5% for output values > 120 */
-SKP_INLINE SKP_int32 SKP_Silk_SQRT_APPROX(SKP_int32 x)
-{
- SKP_int32 y, lz, frac_Q7;
-
- if( x <= 0 ) {
- return 0;
- }
-
- SKP_Silk_CLZ_FRAC(x, &lz, &frac_Q7);
-
- if( lz & 1 ) {
- y = 32768;
- } else {
- y = 46214; /* 46214 = sqrt(2) * 32768 */
- }
-
- /* get scaling right */
- y >>= SKP_RSHIFT(lz, 1);
-
- /* increment using fractional part of input */
- y = SKP_SMLAWB(y, y, SKP_SMULBB(213, frac_Q7));
-
- return y;
-}
-
-/* returns the number of left shifts before overflow for a 16 bit number (ITU definition with norm(0)=0) */
-SKP_INLINE SKP_int32 SKP_Silk_norm16(SKP_int16 a) {
-
- SKP_int32 a32;
-
- /* if ((a == 0) || (a == SKP_int16_MIN)) return(0); */
- if ((a << 1) == 0) return(0);
-
- a32 = a;
- /* if (a32 < 0) a32 = -a32 - 1; */
- a32 ^= SKP_RSHIFT(a32, 31);
-
- return SKP_Silk_CLZ32(a32) - 17;
-}
-
-/* returns the number of left shifts before overflow for a 32 bit number (ITU definition with norm(0)=0) */
-SKP_INLINE SKP_int32 SKP_Silk_norm32(SKP_int32 a) {
-
- /* if ((a == 0) || (a == SKP_int32_MIN)) return(0); */
- if ((a << 1) == 0) return(0);
-
- /* if (a < 0) a = -a - 1; */
- a ^= SKP_RSHIFT(a, 31);
-
- return SKP_Silk_CLZ32(a) - 1;
-}
-
-/* Divide two int32 values and return result as int32 in a given Q-domain */
-SKP_INLINE SKP_int32 SKP_DIV32_varQ( /* O returns a good approximation of "(a32 << Qres) / b32" */
- const SKP_int32 a32, /* I numerator (Q0) */
- const SKP_int32 b32, /* I denominator (Q0) */
- const SKP_int Qres /* I Q-domain of result (>= 0) */
-)
-{
- SKP_int a_headrm, b_headrm, lshift;
- SKP_int32 b32_inv, a32_nrm, b32_nrm, result;
-
- SKP_assert( b32 != 0 );
- SKP_assert( Qres >= 0 );
-
- /* Compute number of bits head room and normalize inputs */
- a_headrm = SKP_Silk_CLZ32( SKP_abs(a32) ) - 1;
- a32_nrm = SKP_LSHIFT(a32, a_headrm); /* Q: a_headrm */
- b_headrm = SKP_Silk_CLZ32( SKP_abs(b32) ) - 1;
- b32_nrm = SKP_LSHIFT(b32, b_headrm); /* Q: b_headrm */
-
- /* Inverse of b32, with 14 bits of precision */
- b32_inv = SKP_DIV32_16( SKP_int32_MAX >> 2, SKP_RSHIFT(b32_nrm, 16) ); /* Q: 29 + 16 - b_headrm */
-
- /* First approximation */
- result = SKP_SMULWB(a32_nrm, b32_inv); /* Q: 29 + a_headrm - b_headrm */
-
- /* Compute residual by subtracting product of denominator and first approximation */
- a32_nrm -= SKP_LSHIFT_ovflw( SKP_SMMUL(b32_nrm, result), 3 ); /* Q: a_headrm */
-
- /* Refinement */
- result = SKP_SMLAWB(result, a32_nrm, b32_inv); /* Q: 29 + a_headrm - b_headrm */
-
- /* Convert to Qres domain */
- lshift = 29 + a_headrm - b_headrm - Qres;
- if( lshift <= 0 ) {
- return SKP_LSHIFT_SAT32(result, -lshift);
- } else {
- if( lshift < 32){
- return SKP_RSHIFT(result, lshift);
- } else {
- /* Avoid undefined result */
- return 0;
- }
- }
-}
-
-/* Invert int32 value and return result as int32 in a given Q-domain */
-SKP_INLINE SKP_int32 SKP_INVERSE32_varQ( /* O returns a good approximation of "(1 << Qres) / b32" */
- const SKP_int32 b32, /* I denominator (Q0) */
- const SKP_int Qres /* I Q-domain of result (> 0) */
-)
-{
- SKP_int b_headrm, lshift;
- SKP_int32 b32_inv, b32_nrm, err_Q32, result;
-
- SKP_assert( b32 != 0 );
- SKP_assert( b32 != SKP_int32_MIN ); /* SKP_int32_MIN is not handled by SKP_abs */
- SKP_assert( Qres > 0 );
-
- /* Compute number of bits head room and normalize input */
- b_headrm = SKP_Silk_CLZ32( SKP_abs(b32) ) - 1;
- b32_nrm = SKP_LSHIFT(b32, b_headrm); /* Q: b_headrm */
-
- /* Inverse of b32, with 14 bits of precision */
- b32_inv = SKP_DIV32_16( SKP_int32_MAX >> 2, SKP_RSHIFT(b32_nrm, 16) ); /* Q: 29 + 16 - b_headrm */
-
- /* First approximation */
- result = SKP_LSHIFT(b32_inv, 16); /* Q: 61 - b_headrm */
-
- /* Compute residual by subtracting product of denominator and first approximation from one */
- err_Q32 = SKP_LSHIFT_ovflw( -SKP_SMULWB(b32_nrm, b32_inv), 3 ); /* Q32 */
-
- /* Refinement */
- result = SKP_SMLAWW(result, err_Q32, b32_inv); /* Q: 61 - b_headrm */
-
- /* Convert to Qres domain */
- lshift = 61 - b_headrm - Qres;
- if( lshift <= 0 ) {
- return SKP_LSHIFT_SAT32(result, -lshift);
- } else {
- if( lshift < 32){
- return SKP_RSHIFT(result, lshift);
- }else{
- /* Avoid undefined result */
- return 0;
- }
- }
-}
-
-#define SKP_SIN_APPROX_CONST0 (1073735400)
-#define SKP_SIN_APPROX_CONST1 (-82778932)
-#define SKP_SIN_APPROX_CONST2 (1059577)
-#define SKP_SIN_APPROX_CONST3 (-5013)
-
-/* Sine approximation; an input of 65536 corresponds to 2 * pi */
-/* Uses polynomial expansion of the input to the power 0, 2, 4 and 6 */
-/* The relative error is below 1e-5 */
-SKP_INLINE SKP_int32 SKP_Silk_SIN_APPROX_Q24( /* O returns approximately 2^24 * sin(x * 2 * pi / 65536) */
- SKP_int32 x
-)
-{
- SKP_int y_Q30;
-
- /* Keep only bottom 16 bits (the function repeats itself with period 65536) */
- x &= 65535;
-
- /* Split range in four quadrants */
- if( x <= 32768 ) {
- if( x < 16384 ) {
- /* Return cos(pi/2 - x) */
- x = 16384 - x;
- } else {
- /* Return cos(x - pi/2) */
- x -= 16384;
- }
- if( x < 1100 ) {
- /* Special case: high accuracy */
- return SKP_SMLAWB( 1 << 24, SKP_MUL( x, x ), -5053 );
- }
- x = SKP_SMULWB( SKP_LSHIFT( x, 8 ), x ); /* contains x^2 in Q20 */
- y_Q30 = SKP_SMLAWB( SKP_SIN_APPROX_CONST2, x, SKP_SIN_APPROX_CONST3 );
- y_Q30 = SKP_SMLAWW( SKP_SIN_APPROX_CONST1, x, y_Q30 );
- y_Q30 = SKP_SMLAWW( SKP_SIN_APPROX_CONST0 + 66, x, y_Q30 );
- } else {
- if( x < 49152 ) {
- /* Return -cos(3*pi/2 - x) */
- x = 49152 - x;
- } else {
- /* Return -cos(x - 3*pi/2) */
- x -= 49152;
- }
- if( x < 1100 ) {
- /* Special case: high accuracy */
- return SKP_SMLAWB( -1 << 24, SKP_MUL( x, x ), 5053 );
- }
- x = SKP_SMULWB( SKP_LSHIFT( x, 8 ), x ); /* contains x^2 in Q20 */
- y_Q30 = SKP_SMLAWB( -SKP_SIN_APPROX_CONST2, x, -SKP_SIN_APPROX_CONST3 );
- y_Q30 = SKP_SMLAWW( -SKP_SIN_APPROX_CONST1, x, y_Q30 );
- y_Q30 = SKP_SMLAWW( -SKP_SIN_APPROX_CONST0, x, y_Q30 );
- }
- return SKP_RSHIFT_ROUND( y_Q30, 6 );
-}
-
-/* Cosine approximation; an input of 65536 corresponds to 2 * pi */
-/* The relative error is below 1e-5 */
-SKP_INLINE SKP_int32 SKP_Silk_COS_APPROX_Q24( /* O returns approximately 2^24 * cos(x * 2 * pi / 65536) */
- SKP_int32 x
-)
-{
- return SKP_Silk_SIN_APPROX_Q24( x + 16384 );
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /*_SKP_SILK_FIX_INLINES_H_*/
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-/* Resets LBRR buffer, used if packet size changes */
-void SKP_Silk_LBRR_reset(
- SKP_Silk_encoder_state *psEncC /* I/O state */
-)
-{
- SKP_int i;
-
- for( i = 0; i < MAX_LBRR_DELAY; i++ ) {
- psEncC->LBRR_buffer[ i ].usage = SKP_SILK_NO_LBRR;
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_LPC_inverse_pred_gain.c *
- * *
- * Compute inverse of LPC prediction gain, and *
- * test if LPC coefficients are stable (all poles within unit circle) *
- * *
- * Copyright 2008 (c), Skype Limited *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-
-#define QA 16
-#define A_LIMIT SKP_FIX_CONST( 0.99975, QA )
-
-/* Compute inverse of LPC prediction gain, and */
-/* test if LPC coefficients are stable (all poles within unit circle) */
-static SKP_int LPC_inverse_pred_gain_QA( /* O: Returns 1 if unstable, otherwise 0 */
- SKP_int32 *invGain_Q30, /* O: Inverse prediction gain, Q30 energy domain */
- SKP_int32 A_QA[ 2 ][ SKP_Silk_MAX_ORDER_LPC ],
- /* I: Prediction coefficients */
- const SKP_int order /* I: Prediction order */
-)
-{
- SKP_int k, n, headrm;
- SKP_int32 rc_Q31, rc_mult1_Q30, rc_mult2_Q16, tmp_QA;
- SKP_int32 *Aold_QA, *Anew_QA;
-
- Anew_QA = A_QA[ order & 1 ];
-
- *invGain_Q30 = ( 1 << 30 );
- for( k = order - 1; k > 0; k-- ) {
- /* Check for stability */
- if( ( Anew_QA[ k ] > A_LIMIT ) || ( Anew_QA[ k ] < -A_LIMIT ) ) {
- return 1;
- }
-
- /* Set RC equal to negated AR coef */
- rc_Q31 = -SKP_LSHIFT( Anew_QA[ k ], 31 - QA );
-
- /* rc_mult1_Q30 range: [ 1 : 2^30-1 ] */
- rc_mult1_Q30 = ( SKP_int32_MAX >> 1 ) - SKP_SMMUL( rc_Q31, rc_Q31 );
- SKP_assert( rc_mult1_Q30 > ( 1 << 15 ) ); /* reduce A_LIMIT if fails */
- SKP_assert( rc_mult1_Q30 < ( 1 << 30 ) );
-
- /* rc_mult2_Q16 range: [ 2^16 : SKP_int32_MAX ] */
- rc_mult2_Q16 = SKP_INVERSE32_varQ( rc_mult1_Q30, 46 ); /* 16 = 46 - 30 */
-
- /* Update inverse gain */
- /* invGain_Q30 range: [ 0 : 2^30 ] */
- *invGain_Q30 = SKP_LSHIFT( SKP_SMMUL( *invGain_Q30, rc_mult1_Q30 ), 2 );
- SKP_assert( *invGain_Q30 >= 0 );
- SKP_assert( *invGain_Q30 <= ( 1 << 30 ) );
-
- /* Swap pointers */
- Aold_QA = Anew_QA;
- Anew_QA = A_QA[ k & 1 ];
-
- /* Update AR coefficient */
- headrm = SKP_Silk_CLZ32( rc_mult2_Q16 ) - 1;
- rc_mult2_Q16 = SKP_LSHIFT( rc_mult2_Q16, headrm ); /* Q: 16 + headrm */
- for( n = 0; n < k; n++ ) {
- tmp_QA = Aold_QA[ n ] - SKP_LSHIFT( SKP_SMMUL( Aold_QA[ k - n - 1 ], rc_Q31 ), 1 );
- Anew_QA[ n ] = SKP_LSHIFT( SKP_SMMUL( tmp_QA, rc_mult2_Q16 ), 16 - headrm );
- }
- }
-
- /* Check for stability */
- if( ( Anew_QA[ 0 ] > A_LIMIT ) || ( Anew_QA[ 0 ] < -A_LIMIT ) ) {
- return 1;
- }
-
- /* Set RC equal to negated AR coef */
- rc_Q31 = -SKP_LSHIFT( Anew_QA[ 0 ], 31 - QA );
-
- /* Range: [ 1 : 2^30 ] */
- rc_mult1_Q30 = ( SKP_int32_MAX >> 1 ) - SKP_SMMUL( rc_Q31, rc_Q31 );
-
- /* Update inverse gain */
- /* Range: [ 0 : 2^30 ] */
- *invGain_Q30 = SKP_LSHIFT( SKP_SMMUL( *invGain_Q30, rc_mult1_Q30 ), 2 );
- SKP_assert( *invGain_Q30 >= 0 );
- SKP_assert( *invGain_Q30 <= 1<<30 );
-
- return 0;
-}
-/* For input in Q12 domain */
-SKP_int SKP_Silk_LPC_inverse_pred_gain( /* O: Returns 1 if unstable, otherwise 0 */
- SKP_int32 *invGain_Q30, /* O: Inverse prediction gain, Q30 energy domain */
- const SKP_int16 *A_Q12, /* I: Prediction coefficients, Q12 [order] */
- const SKP_int order /* I: Prediction order */
-)
-{
- SKP_int k;
- SKP_int32 Atmp_QA[ 2 ][ SKP_Silk_MAX_ORDER_LPC ];
- SKP_int32 *Anew_QA;
-
- Anew_QA = Atmp_QA[ order & 1 ];
-
- /* Increase Q domain of the AR coefficients */
- for( k = 0; k < order; k++ ) {
- Anew_QA[ k ] = SKP_LSHIFT( (SKP_int32)A_Q12[ k ], QA - 12 );
- }
-
- return LPC_inverse_pred_gain_QA( invGain_Q30, Atmp_QA, order );
-}
-
-/* For input in Q24 domain */
-SKP_int SKP_Silk_LPC_inverse_pred_gain_Q24( /* O: Returns 1 if unstable, otherwise 0 */
- SKP_int32 *invGain_Q30, /* O: Inverse prediction gain, Q30 energy domain */
- const SKP_int32 *A_Q24, /* I: Prediction coefficients, Q24 [order] */
- const SKP_int order /* I: Prediction order */
-)
-{
- SKP_int k;
- SKP_int32 Atmp_QA[ 2 ][ SKP_Silk_MAX_ORDER_LPC ];
- SKP_int32 *Anew_QA;
-
- Anew_QA = Atmp_QA[ order & 1 ];
-
- /* Increase Q domain of the AR coefficients */
- for( k = 0; k < order; k++ ) {
- Anew_QA[ k ] = SKP_RSHIFT_ROUND( A_Q24[ k ], 24 - QA );
- }
-
- return LPC_inverse_pred_gain_QA( invGain_Q30, Atmp_QA, order );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_LPC_synthesis_filter.c *
- * Coefficients are in Q12 *
- * *
- * even order AR filter *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* even order AR filter */
-void SKP_Silk_LPC_synthesis_filter(
- const SKP_int16 *in, /* I: excitation signal */
- const SKP_int16 *A_Q12, /* I: AR coefficients [Order], between -8_Q0 and 8_Q0 */
- const SKP_int32 Gain_Q26, /* I: gain */
- SKP_int32 *S, /* I/O: state vector [Order] */
- SKP_int16 *out, /* O: output signal */
- const SKP_int32 len, /* I: signal length */
- const SKP_int Order /* I: filter order, must be even */
-)
-{
- SKP_int k, j, idx, Order_half = SKP_RSHIFT( Order, 1 );
- SKP_int32 SA, SB, out32_Q10, out32;
-
- /* Order must be even */
- SKP_assert( 2 * Order_half == Order );
-
- /* S[] values are in Q14 */
- for( k = 0; k < len; k++ ) {
- SA = S[ Order - 1 ];
- out32_Q10 = 0;
- for( j = 0; j < ( Order_half - 1 ); j++ ) {
- idx = SKP_SMULBB( 2, j ) + 1;
- SB = S[ Order - 1 - idx ];
- S[ Order - 1 - idx ] = SA;
- out32_Q10 = SKP_SMLAWB( out32_Q10, SA, A_Q12[ ( j << 1 ) ] );
- out32_Q10 = SKP_SMLAWB( out32_Q10, SB, A_Q12[ ( j << 1 ) + 1 ] );
- SA = S[ Order - 2 - idx ];
- S[ Order - 2 - idx ] = SB;
- }
-
- /* unrolled loop: epilog */
- SB = S[ 0 ];
- S[ 0 ] = SA;
- out32_Q10 = SKP_SMLAWB( out32_Q10, SA, A_Q12[ Order - 2 ] );
- out32_Q10 = SKP_SMLAWB( out32_Q10, SB, A_Q12[ Order - 1 ] );
- /* apply gain to excitation signal and add to prediction */
- out32_Q10 = SKP_ADD_SAT32( out32_Q10, SKP_SMULWB( Gain_Q26, in[ k ] ) );
-
- /* scale to Q0 */
- out32 = SKP_RSHIFT_ROUND( out32_Q10, 10 );
-
- /* saturate output */
- out[ k ] = ( SKP_int16 )SKP_SAT16( out32 );
-
- /* move result into delay line */
- S[ Order - 1 ] = SKP_LSHIFT_SAT32( out32_Q10, 4 );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_LPC_synthesis_order16.c *
- * Coefficients are in Q12 *
- * *
- * 16th order AR filter *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* 16th order AR filter */
-void SKP_Silk_LPC_synthesis_order16(const SKP_int16 *in, /* I: excitation signal */
- const SKP_int16 *A_Q12, /* I: AR coefficients [16], between -8_Q0 and 8_Q0 */
- const SKP_int32 Gain_Q26, /* I: gain */
- SKP_int32 *S, /* I/O: state vector [16] */
- SKP_int16 *out, /* O: output signal */
- const SKP_int32 len /* I: signal length, must be multiple of 16 */
-)
-{
- SKP_int k;
- SKP_int32 SA, SB, out32_Q10, out32;
- for( k = 0; k < len; k++ ) {
- /* unrolled loop: prolog */
- /* multiply-add two prediction coefficients per iteration */
- SA = S[ 15 ];
- SB = S[ 14 ];
- S[ 14 ] = SA;
- out32_Q10 = SKP_SMULWB( SA, A_Q12[ 0 ] );
- out32_Q10 = SKP_SMLAWB_ovflw( out32_Q10, SB, A_Q12[ 1 ] );
- SA = S[ 13 ];
- S[ 13 ] = SB;
-
- /* unrolled loop: main loop */
- SB = S[ 12 ];
- S[ 12 ] = SA;
- out32_Q10 = SKP_SMLAWB_ovflw( out32_Q10, SA, A_Q12[ 2 ] );
- out32_Q10 = SKP_SMLAWB_ovflw( out32_Q10, SB, A_Q12[ 3 ] );
- SA = S[ 11 ];
- S[ 11 ] = SB;
-
- SB = S[ 10 ];
- S[ 10 ] = SA;
- out32_Q10 = SKP_SMLAWB_ovflw( out32_Q10, SA, A_Q12[ 4 ] );
- out32_Q10 = SKP_SMLAWB_ovflw( out32_Q10, SB, A_Q12[ 5 ] );
- SA = S[ 9 ];
- S[ 9 ] = SB;
-
- SB = S[ 8 ];
- S[ 8 ] = SA;
- out32_Q10 = SKP_SMLAWB_ovflw( out32_Q10, SA, A_Q12[ 6 ] );
- out32_Q10 = SKP_SMLAWB_ovflw( out32_Q10, SB, A_Q12[ 7 ] );
- SA = S[ 7 ];
- S[ 7 ] = SB;
-
- SB = S[ 6 ];
- S[ 6 ] = SA;
- out32_Q10 = SKP_SMLAWB_ovflw( out32_Q10, SA, A_Q12[ 8 ] );
- out32_Q10 = SKP_SMLAWB_ovflw( out32_Q10, SB, A_Q12[ 9 ] );
- SA = S[ 5 ];
- S[ 5 ] = SB;
-
- SB = S[ 4 ];
- S[ 4 ] = SA;
- out32_Q10 = SKP_SMLAWB_ovflw( out32_Q10, SA, A_Q12[ 10 ] );
- out32_Q10 = SKP_SMLAWB_ovflw( out32_Q10, SB, A_Q12[ 11 ] );
- SA = S[ 3 ];
- S[ 3 ] = SB;
-
- SB = S[ 2 ];
- S[ 2 ] = SA;
- out32_Q10 = SKP_SMLAWB_ovflw( out32_Q10, SA, A_Q12[ 12 ] );
- out32_Q10 = SKP_SMLAWB_ovflw( out32_Q10, SB, A_Q12[ 13 ] );
- SA = S[ 1 ];
- S[ 1 ] = SB;
-
- /* unrolled loop: epilog */
- SB = S[ 0 ];
- S[ 0 ] = SA;
- out32_Q10 = SKP_SMLAWB_ovflw( out32_Q10, SA, A_Q12[ 14 ] );
- out32_Q10 = SKP_SMLAWB_ovflw( out32_Q10, SB, A_Q12[ 15 ] );
-
- /* unrolled loop: end */
- /* apply gain to excitation signal and add to prediction */
- out32_Q10 = SKP_ADD_SAT32( out32_Q10, SKP_SMULWB( Gain_Q26, in[ k ] ) );
-
- /* scale to Q0 */
- out32 = SKP_RSHIFT_ROUND( out32_Q10, 10 );
-
- /* saturate output */
- out[ k ] = ( SKP_int16 )SKP_SAT16( out32 );
-
- /* move result into delay line */
- S[ 15 ] = SKP_LSHIFT_SAT32( out32_Q10, 4 );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/*
-
- Elliptic/Cauer filters designed with 0.1 dB passband ripple,
- 80 dB minimum stopband attenuation, and
- [0.95 : 0.15 : 0.35] normalized cut off frequencies.
-
-*/
-#include "SKP_Silk_main.h"
-
-#if SWITCH_TRANSITION_FILTERING
-
-/* Helper function, that interpolates the filter taps */
-SKP_INLINE void SKP_Silk_LP_interpolate_filter_taps(
- SKP_int32 B_Q28[ TRANSITION_NB ],
- SKP_int32 A_Q28[ TRANSITION_NA ],
- const SKP_int ind,
- const SKP_int32 fac_Q16
-)
-{
- SKP_int nb, na;
-
- if( ind < TRANSITION_INT_NUM - 1 ) {
- if( fac_Q16 > 0 ) {
- if( fac_Q16 == SKP_SAT16( fac_Q16 ) ) { /* fac_Q16 is in range of a 16-bit int */
- /* Piece-wise linear interpolation of B and A */
- for( nb = 0; nb < TRANSITION_NB; nb++ ) {
- B_Q28[ nb ] = SKP_SMLAWB(
- SKP_Silk_Transition_LP_B_Q28[ ind ][ nb ],
- SKP_Silk_Transition_LP_B_Q28[ ind + 1 ][ nb ] -
- SKP_Silk_Transition_LP_B_Q28[ ind ][ nb ],
- fac_Q16 );
- }
- for( na = 0; na < TRANSITION_NA; na++ ) {
- A_Q28[ na ] = SKP_SMLAWB(
- SKP_Silk_Transition_LP_A_Q28[ ind ][ na ],
- SKP_Silk_Transition_LP_A_Q28[ ind + 1 ][ na ] -
- SKP_Silk_Transition_LP_A_Q28[ ind ][ na ],
- fac_Q16 );
- }
- } else if( fac_Q16 == ( 1 << 15 ) ) { /* Neither fac_Q16 nor ( ( 1 << 16 ) - fac_Q16 ) is in range of a 16-bit int */
-
- /* Piece-wise linear interpolation of B and A */
- for( nb = 0; nb < TRANSITION_NB; nb++ ) {
- B_Q28[ nb ] = SKP_RSHIFT(
- SKP_Silk_Transition_LP_B_Q28[ ind ][ nb ] +
- SKP_Silk_Transition_LP_B_Q28[ ind + 1 ][ nb ],
- 1 );
- }
- for( na = 0; na < TRANSITION_NA; na++ ) {
- A_Q28[ na ] = SKP_RSHIFT(
- SKP_Silk_Transition_LP_A_Q28[ ind ][ na ] +
- SKP_Silk_Transition_LP_A_Q28[ ind + 1 ][ na ],
- 1 );
- }
- } else { /* ( ( 1 << 16 ) - fac_Q16 ) is in range of a 16-bit int */
-
- SKP_assert( ( ( 1 << 16 ) - fac_Q16 ) == SKP_SAT16( ( ( 1 << 16 ) - fac_Q16) ) );
- /* Piece-wise linear interpolation of B and A */
- for( nb = 0; nb < TRANSITION_NB; nb++ ) {
- B_Q28[ nb ] = SKP_SMLAWB(
- SKP_Silk_Transition_LP_B_Q28[ ind + 1 ][ nb ],
- SKP_Silk_Transition_LP_B_Q28[ ind ][ nb ] -
- SKP_Silk_Transition_LP_B_Q28[ ind + 1 ][ nb ],
- ( 1 << 16 ) - fac_Q16 );
- }
- for( na = 0; na < TRANSITION_NA; na++ ) {
- A_Q28[ na ] = SKP_SMLAWB(
- SKP_Silk_Transition_LP_A_Q28[ ind + 1 ][ na ],
- SKP_Silk_Transition_LP_A_Q28[ ind ][ na ] -
- SKP_Silk_Transition_LP_A_Q28[ ind + 1 ][ na ],
- ( 1 << 16 ) - fac_Q16 );
- }
- }
- } else {
- SKP_memcpy( B_Q28, SKP_Silk_Transition_LP_B_Q28[ ind ], TRANSITION_NB * sizeof( SKP_int32 ) );
- SKP_memcpy( A_Q28, SKP_Silk_Transition_LP_A_Q28[ ind ], TRANSITION_NA * sizeof( SKP_int32 ) );
- }
- } else {
- SKP_memcpy( B_Q28, SKP_Silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM - 1 ], TRANSITION_NB * sizeof( SKP_int32 ) );
- SKP_memcpy( A_Q28, SKP_Silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM - 1 ], TRANSITION_NA * sizeof( SKP_int32 ) );
- }
-}
-
-/* Low-pass filter with variable cutoff frequency based on */
-/* piece-wise linear interpolation between elliptic filters */
-/* Start by setting psEncC->transition_frame_no = 1; */
-/* Deactivate by setting psEncC->transition_frame_no = 0; */
-void SKP_Silk_LP_variable_cutoff(
- SKP_Silk_LP_state *psLP, /* I/O LP filter state */
- SKP_int16 *out, /* O Low-pass filtered output signal */
- const SKP_int16 *in, /* I Input signal */
- const SKP_int frame_length /* I Frame length */
-)
-{
- SKP_int32 B_Q28[ TRANSITION_NB ], A_Q28[ TRANSITION_NA ], fac_Q16 = 0;
- SKP_int ind = 0;
-
- SKP_assert( psLP->transition_frame_no >= 0 );
- SKP_assert( ( ( ( psLP->transition_frame_no <= TRANSITION_FRAMES_DOWN ) && ( psLP->mode == 0 ) ) ||
- ( ( psLP->transition_frame_no <= TRANSITION_FRAMES_UP ) && ( psLP->mode == 1 ) ) ) );
-
- /* Interpolate filter coefficients if needed */
- if( psLP->transition_frame_no > 0 ) {
- if( psLP->mode == 0 ) {
- if( psLP->transition_frame_no < TRANSITION_FRAMES_DOWN ) {
- /* Calculate index and interpolation factor for interpolation */
-#if( TRANSITION_INT_STEPS_DOWN == 32 )
- fac_Q16 = SKP_LSHIFT( psLP->transition_frame_no, 16 - 5 );
-#else
- fac_Q16 = SKP_DIV32_16( SKP_LSHIFT( psLP->transition_frame_no, 16 ), TRANSITION_INT_STEPS_DOWN );
-#endif
- ind = SKP_RSHIFT( fac_Q16, 16 );
- fac_Q16 -= SKP_LSHIFT( ind, 16 );
-
- SKP_assert( ind >= 0 );
- SKP_assert( ind < TRANSITION_INT_NUM );
-
- /* Interpolate filter coefficients */
- SKP_Silk_LP_interpolate_filter_taps( B_Q28, A_Q28, ind, fac_Q16 );
-
- /* Increment transition frame number for next frame */
- psLP->transition_frame_no++;
-
- } else {
- SKP_assert( psLP->transition_frame_no == TRANSITION_FRAMES_DOWN );
- /* End of transition phase */
- SKP_Silk_LP_interpolate_filter_taps( B_Q28, A_Q28, TRANSITION_INT_NUM - 1, 0 );
- }
- } else {
- SKP_assert( psLP->mode == 1 );
- if( psLP->transition_frame_no < TRANSITION_FRAMES_UP ) {
- /* Calculate index and interpolation factor for interpolation */
-#if( TRANSITION_INT_STEPS_UP == 64 )
- fac_Q16 = SKP_LSHIFT( TRANSITION_FRAMES_UP - psLP->transition_frame_no, 16 - 6 );
-#else
- fac_Q16 = SKP_DIV32_16( SKP_LSHIFT( TRANSITION_FRAMES_UP - psLP->transition_frame_no, 16 ), TRANSITION_INT_STEPS_UP );
-#endif
- ind = SKP_RSHIFT( fac_Q16, 16 );
- fac_Q16 -= SKP_LSHIFT( ind, 16 );
-
- SKP_assert( ind >= 0 );
- SKP_assert( ind < TRANSITION_INT_NUM );
-
- /* Interpolate filter coefficients */
- SKP_Silk_LP_interpolate_filter_taps( B_Q28, A_Q28, ind, fac_Q16 );
-
- /* Increment transition frame number for next frame */
- psLP->transition_frame_no++;
-
- } else {
- SKP_assert( psLP->transition_frame_no == TRANSITION_FRAMES_UP );
- /* End of transition phase */
- SKP_Silk_LP_interpolate_filter_taps( B_Q28, A_Q28, 0, 0 );
- }
- }
- }
-
- if( psLP->transition_frame_no > 0 ) {
- /* ARMA low-pass filtering */
- SKP_assert( TRANSITION_NB == 3 && TRANSITION_NA == 2 );
- SKP_Silk_biquad_alt( in, B_Q28, A_Q28, psLP->In_LP_State, out, frame_length );
- } else {
- /* Instead of using the filter, copy input directly to output */
- SKP_memcpy( out, in, frame_length * sizeof( SKP_int16 ) );
- }
-}
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_SigProc_FIX.h"
-
-// Q12 values (even)
-const SKP_int SKP_Silk_LSFCosTab_FIX_Q12[LSF_COS_TAB_SZ_FIX + 1] = {
- 8192, 8190, 8182, 8170,
- 8152, 8130, 8104, 8072,
- 8034, 7994, 7946, 7896,
- 7840, 7778, 7714, 7644,
- 7568, 7490, 7406, 7318,
- 7226, 7128, 7026, 6922,
- 6812, 6698, 6580, 6458,
- 6332, 6204, 6070, 5934,
- 5792, 5648, 5502, 5352,
- 5198, 5040, 4880, 4718,
- 4552, 4382, 4212, 4038,
- 3862, 3684, 3502, 3320,
- 3136, 2948, 2760, 2570,
- 2378, 2186, 1990, 1794,
- 1598, 1400, 1202, 1002,
- 802, 602, 402, 202,
- 0, -202, -402, -602,
- -802, -1002, -1202, -1400,
- -1598, -1794, -1990, -2186,
- -2378, -2570, -2760, -2948,
- -3136, -3320, -3502, -3684,
- -3862, -4038, -4212, -4382,
- -4552, -4718, -4880, -5040,
- -5198, -5352, -5502, -5648,
- -5792, -5934, -6070, -6204,
- -6332, -6458, -6580, -6698,
- -6812, -6922, -7026, -7128,
- -7226, -7318, -7406, -7490,
- -7568, -7644, -7714, -7778,
- -7840, -7896, -7946, -7994,
- -8034, -8072, -8104, -8130,
- -8152, -8170, -8182, -8190,
- -8192
-};
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-
-void SKP_Silk_LTP_analysis_filter_FIX(
- SKP_int16 *LTP_res, /* O: LTP residual signal of length NB_SUBFR * ( pre_length + subfr_length ) */
- const SKP_int16 *x, /* I: Pointer to input signal with at least max( pitchL ) preceeding samples */
- const SKP_int16 LTPCoef_Q14[ LTP_ORDER * NB_SUBFR ],/* I: LTP_ORDER LTP coefficients for each NB_SUBFR subframe */
- const SKP_int pitchL[ NB_SUBFR ], /* I: Pitch lag, one for each subframe */
- const SKP_int32 invGains_Q16[ NB_SUBFR ], /* I: Inverse quantization gains, one for each subframe */
- const SKP_int subfr_length, /* I: Length of each subframe */
- const SKP_int pre_length /* I: Length of the preceeding samples starting at &x[0] for each subframe */
-)
-{
- const SKP_int16 *x_ptr, *x_lag_ptr;
- SKP_int16 Btmp_Q14[ LTP_ORDER ];
- SKP_int16 *LTP_res_ptr;
- SKP_int k, i, j;
- SKP_int32 LTP_est;
-
- x_ptr = x;
- LTP_res_ptr = LTP_res;
- for( k = 0; k < NB_SUBFR; k++ ) {
-
- x_lag_ptr = x_ptr - pitchL[ k ];
- for( i = 0; i < LTP_ORDER; i++ ) {
- Btmp_Q14[ i ] = LTPCoef_Q14[ k * LTP_ORDER + i ];
- }
-
- /* LTP analysis FIR filter */
- for( i = 0; i < subfr_length + pre_length; i++ ) {
- LTP_res_ptr[ i ] = x_ptr[ i ];
-
- /* Long-term prediction */
- LTP_est = SKP_SMULBB( x_lag_ptr[ LTP_ORDER / 2 ], Btmp_Q14[ 0 ] );
- for( j = 1; j < LTP_ORDER; j++ ) {
- LTP_est = SKP_SMLABB_ovflw( LTP_est, x_lag_ptr[ LTP_ORDER / 2 - j ], Btmp_Q14[ j ] );
- }
- LTP_est = SKP_RSHIFT_ROUND( LTP_est, 14 ); // round and -> Q0
-
- /* Subtract long-term prediction */
- LTP_res_ptr[ i ] = ( SKP_int16 )SKP_SAT16( ( SKP_int32 )x_ptr[ i ] - LTP_est );
-
- /* Scale residual */
- LTP_res_ptr[ i ] = SKP_SMULWB( invGains_Q16[ k ], LTP_res_ptr[ i ] );
-
- x_lag_ptr++;
- }
-
- /* Update pointers */
- LTP_res_ptr += subfr_length + pre_length;
- x_ptr += subfr_length;
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-
-#define NB_THRESHOLDS 11
-
-/* Table containing trained thresholds for LTP scaling */
-static const SKP_int16 LTPScaleThresholds_Q15[ NB_THRESHOLDS ] =
-{
- 31129, 26214, 16384, 13107, 9830, 6554,
- 4915, 3276, 2621, 2458, 0
-};
-
-void SKP_Silk_LTP_scale_ctrl_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O encoder state FIX */
- SKP_Silk_encoder_control_FIX *psEncCtrl /* I/O encoder control FIX */
-)
-{
- SKP_int round_loss, frames_per_packet;
- SKP_int g_out_Q5, g_limit_Q15, thrld1_Q15, thrld2_Q15;
-
- /* 1st order high-pass filter */
- psEnc->HPLTPredCodGain_Q7 = SKP_max_int( psEncCtrl->LTPredCodGain_Q7 - psEnc->prevLTPredCodGain_Q7, 0 )
- + SKP_RSHIFT_ROUND( psEnc->HPLTPredCodGain_Q7, 1 );
-
- psEnc->prevLTPredCodGain_Q7 = psEncCtrl->LTPredCodGain_Q7;
-
- /* combine input and filtered input */
- g_out_Q5 = SKP_RSHIFT_ROUND( SKP_RSHIFT( psEncCtrl->LTPredCodGain_Q7, 1 ) + SKP_RSHIFT( psEnc->HPLTPredCodGain_Q7, 1 ), 3 );
- g_limit_Q15 = SKP_Silk_sigm_Q15( g_out_Q5 - ( 3 << 5 ) );
-
- /* Default is minimum scaling */
- psEncCtrl->sCmn.LTP_scaleIndex = 0;
-
- /* Round the loss measure to whole pct */
- round_loss = ( SKP_int )psEnc->sCmn.PacketLoss_perc;
-
- /* Only scale if first frame in packet 0% */
- if( psEnc->sCmn.nFramesInPayloadBuf == 0 ) {
-
- frames_per_packet = SKP_DIV32_16( psEnc->sCmn.PacketSize_ms, FRAME_LENGTH_MS );
-
- round_loss += frames_per_packet - 1;
- thrld1_Q15 = LTPScaleThresholds_Q15[ SKP_min_int( round_loss, NB_THRESHOLDS - 1 ) ];
- thrld2_Q15 = LTPScaleThresholds_Q15[ SKP_min_int( round_loss + 1, NB_THRESHOLDS - 1 ) ];
-
- if( g_limit_Q15 > thrld1_Q15 ) {
- /* Maximum scaling */
- psEncCtrl->sCmn.LTP_scaleIndex = 2;
- } else if( g_limit_Q15 > thrld2_Q15 ) {
- /* Medium scaling */
- psEncCtrl->sCmn.LTP_scaleIndex = 1;
- }
- }
- psEncCtrl->LTP_scale_Q14 = SKP_Silk_LTPScales_table_Q14[ psEncCtrl->sCmn.LTP_scaleIndex ];
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_MA.c *
- * *
- * Variable order MA filter *
- * *
- * Copyright 2006 (c), Skype Limited *
- * Date: 060221 *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Variable order MA prediction error filter */
-void SKP_Silk_MA_Prediction(
- const SKP_int16 *in, /* I: Input signal */
- const SKP_int16 *B, /* I: MA prediction coefficients, Q12 [order] */
- SKP_int32 *S, /* I/O: State vector [order] */
- SKP_int16 *out, /* O: Output signal */
- const SKP_int32 len, /* I: Signal length */
- const SKP_int32 order /* I: Filter order */
-)
-{
- SKP_int k, d, in16;
- SKP_int32 out32;
-
- for( k = 0; k < len; k++ ) {
- in16 = in[ k ];
- out32 = SKP_LSHIFT( in16, 12 ) - S[ 0 ];
- out32 = SKP_RSHIFT_ROUND( out32, 12 );
-
- for( d = 0; d < order - 1; d++ ) {
- S[ d ] = SKP_SMLABB_ovflw( S[ d + 1 ], in16, B[ d ] );
- }
- S[ order - 1 ] = SKP_SMULBB( in16, B[ order - 1 ] );
-
- /* Limit */
- out[ k ] = (SKP_int16)SKP_SAT16( out32 );
- }
-}
-
-
-void SKP_Silk_LPC_analysis_filter(
- const SKP_int16 *in, /* I: Input signal */
- const SKP_int16 *B, /* I: MA prediction coefficients, Q12 [order] */
- SKP_int16 *S, /* I/O: State vector [order] */
- SKP_int16 *out, /* O: Output signal */
- const SKP_int32 len, /* I: Signal length */
- const SKP_int32 Order /* I: Filter order */
-)
-{
- SKP_int k, j, idx, Order_half = SKP_RSHIFT( Order, 1 );
- SKP_int32 out32_Q12, out32;
- SKP_int16 SA, SB;
- /* Order must be even */
- SKP_assert( 2 * Order_half == Order );
-
- /* S[] values are in Q0 */
- for( k = 0; k < len; k++ ) {
- SA = S[ 0 ];
- out32_Q12 = 0;
- for( j = 0; j < ( Order_half - 1 ); j++ ) {
- idx = SKP_SMULBB( 2, j ) + 1;
- /* Multiply-add two prediction coefficients for each loop */
- SB = S[ idx ];
- S[ idx ] = SA;
- out32_Q12 = SKP_SMLABB( out32_Q12, SA, B[ idx - 1 ] );
- out32_Q12 = SKP_SMLABB( out32_Q12, SB, B[ idx ] );
- SA = S[ idx + 1 ];
- S[ idx + 1 ] = SB;
- }
-
- /* Unrolled loop: epilog */
- SB = S[ Order - 1 ];
- S[ Order - 1 ] = SA;
- out32_Q12 = SKP_SMLABB( out32_Q12, SA, B[ Order - 2 ] );
- out32_Q12 = SKP_SMLABB( out32_Q12, SB, B[ Order - 1 ] );
-
- /* Subtract prediction */
- out32_Q12 = SKP_SUB_SAT32( SKP_LSHIFT( (SKP_int32)in[ k ], 12 ), out32_Q12 );
-
- /* Scale to Q0 */
- out32 = SKP_RSHIFT_ROUND( out32_Q12, 12 );
-
- /* Saturate output */
- out[ k ] = ( SKP_int16 )SKP_SAT16( out32 );
-
- /* Move input line */
- S[ 0 ] = in[ k ];
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* conversion between prediction filter coefficients and LSFs */
-/* order should be even */
-/* a piecewise linear approximation maps LSF <-> cos(LSF) */
-/* therefore the result is not accurate LSFs, but the two */
-/* function are accurate inverses of each other */
-
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* helper function for NLSF2A(..) */
-SKP_INLINE void SKP_Silk_NLSF2A_find_poly(
- SKP_int32 *out, /* o intermediate polynomial, Q20 */
- const SKP_int32 *cLSF, /* i vector of interleaved 2*cos(LSFs), Q20 */
- SKP_int dd /* i polynomial order (= 1/2 * filter order) */
-)
-{
- SKP_int k, n;
- SKP_int32 ftmp;
-
- out[0] = SKP_LSHIFT( 1, 20 );
- out[1] = -cLSF[0];
- for( k = 1; k < dd; k++ ) {
- ftmp = cLSF[2*k]; // Q20
- out[k+1] = SKP_LSHIFT( out[k-1], 1 ) - (SKP_int32)SKP_RSHIFT_ROUND64( SKP_SMULL( ftmp, out[k] ), 20 );
- for( n = k; n > 1; n-- ) {
- out[n] += out[n-2] - (SKP_int32)SKP_RSHIFT_ROUND64( SKP_SMULL( ftmp, out[n-1] ), 20 );
- }
- out[1] -= ftmp;
- }
-}
-
-/* compute whitening filter coefficients from normalized line spectral frequencies */
-void SKP_Silk_NLSF2A(
- SKP_int16 *a, /* o monic whitening filter coefficients in Q12, [d] */
- const SKP_int *NLSF, /* i normalized line spectral frequencies in Q15, [d] */
- const SKP_int d /* i filter order (should be even) */
-)
-{
- SKP_int k, i, dd;
- SKP_int32 cos_LSF_Q20[SKP_Silk_MAX_ORDER_LPC];
- SKP_int32 P[SKP_Silk_MAX_ORDER_LPC/2+1], Q[SKP_Silk_MAX_ORDER_LPC/2+1];
- SKP_int32 Ptmp, Qtmp;
- SKP_int32 f_int;
- SKP_int32 f_frac;
- SKP_int32 cos_val, delta;
- SKP_int32 a_int32[SKP_Silk_MAX_ORDER_LPC];
- SKP_int32 maxabs, absval, idx=0, sc_Q16;
-
- SKP_assert(LSF_COS_TAB_SZ_FIX == 128);
-
- /* convert LSFs to 2*cos(LSF(i)), using piecewise linear curve from table */
- for( k = 0; k < d; k++ ) {
- SKP_assert(NLSF[k] >= 0 );
- SKP_assert(NLSF[k] <= 32767 );
-
- /* f_int on a scale 0-127 (rounded down) */
- f_int = SKP_RSHIFT( NLSF[k], 15 - 7 );
-
- /* f_frac, range: 0..255 */
- f_frac = NLSF[k] - SKP_LSHIFT( f_int, 15 - 7 );
-
- SKP_assert(f_int >= 0);
- SKP_assert(f_int < LSF_COS_TAB_SZ_FIX );
-
- /* Read start and end value from table */
- cos_val = SKP_Silk_LSFCosTab_FIX_Q12[ f_int ]; /* Q12 */
- delta = SKP_Silk_LSFCosTab_FIX_Q12[ f_int + 1 ] - cos_val; /* Q12, with a range of 0..200 */
-
- /* Linear interpolation */
- cos_LSF_Q20[k] = SKP_LSHIFT( cos_val, 8 ) + SKP_MUL( delta, f_frac ); /* Q20 */
- }
-
- dd = SKP_RSHIFT( d, 1 );
-
- /* generate even and odd polynomials using convolution */
- SKP_Silk_NLSF2A_find_poly( P, &cos_LSF_Q20[0], dd );
- SKP_Silk_NLSF2A_find_poly( Q, &cos_LSF_Q20[1], dd );
-
- /* convert even and odd polynomials to SKP_int32 Q12 filter coefs */
- for( k = 0; k < dd; k++ ) {
- Ptmp = P[k+1] + P[k];
- Qtmp = Q[k+1] - Q[k];
-
- /* the Ptmp and Qtmp values at this stage need to fit in int32 */
-
- a_int32[k] = -SKP_RSHIFT_ROUND( Ptmp + Qtmp, 9 ); /* Q20 -> Q12 */
- a_int32[d-k-1] = SKP_RSHIFT_ROUND( Qtmp - Ptmp, 9 ); /* Q20 -> Q12 */
- }
-
- /* Limit the maximum absolute value of the prediction coefficients */
- for( i = 0; i < 10; i++ ) {
- /* Find maximum absolute value and its index */
- maxabs = 0;
- for( k = 0; k < d; k++ ) {
- absval = SKP_abs( a_int32[k] );
- if( absval > maxabs ) {
- maxabs = absval;
- idx = k;
- }
- }
-
- if( maxabs > SKP_int16_MAX ) {
- /* Reduce magnitude of prediction coefficients */
- maxabs = SKP_min( maxabs, 98369 ); // ( SKP_int32_MAX / ( 65470 >> 2 ) ) + SKP_int16_MAX = 98369
- sc_Q16 = 65470 - SKP_DIV32( SKP_MUL( 65470 >> 2, maxabs - SKP_int16_MAX ),
- SKP_RSHIFT32( SKP_MUL( maxabs, idx + 1), 2 ) );
- SKP_Silk_bwexpander_32( a_int32, d, sc_Q16 );
- } else {
- break;
- }
- }
-
- /* Reached the last iteration */
- if( i == 10 ) {
- SKP_assert(0);
- for( k = 0; k < d; k++ ) {
- a_int32[k] = SKP_SAT16( a_int32[k] );
- }
- }
-
- /* Return as SKP_int16 Q12 coefficients */
- for( k = 0; k < d; k++ ) {
- a[k] = (SKP_int16)a_int32[k];
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-/* Convert NLSF parameters to stable AR prediction filter coefficients */
-void SKP_Silk_NLSF2A_stable(
- SKP_int16 pAR_Q12[ MAX_LPC_ORDER ], /* O Stabilized AR coefs [LPC_order] */
- const SKP_int pNLSF[ MAX_LPC_ORDER ], /* I NLSF vector [LPC_order] */
- const SKP_int LPC_order /* I LPC/LSF order */
-)
-{
- SKP_int i;
- SKP_int32 invGain_Q30;
-
- SKP_Silk_NLSF2A( pAR_Q12, pNLSF, LPC_order );
-
- /* Ensure stable LPCs */
- for( i = 0; i < MAX_LPC_STABILIZE_ITERATIONS; i++ ) {
- if( SKP_Silk_LPC_inverse_pred_gain( &invGain_Q30, pAR_Q12, LPC_order ) == 1 ) {
- SKP_Silk_bwexpander( pAR_Q12, LPC_order, 65536 - SKP_SMULBB( 10 + i, i ) ); /* 10_Q16 = 0.00015 */
- } else {
- break;
- }
- }
-
- /* Reached the last iteration */
- if( i == MAX_LPC_STABILIZE_ITERATIONS ) {
- SKP_assert( 0 );
- for( i = 0; i < LPC_order; i++ ) {
- pAR_Q12[ i ] = 0;
- }
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-/* NLSF vector decoder */
-void SKP_Silk_NLSF_MSVQ_decode(
- SKP_int *pNLSF_Q15, /* O Pointer to decoded output vector [LPC_ORDER x 1] */
- const SKP_Silk_NLSF_CB_struct *psNLSF_CB, /* I Pointer to NLSF codebook struct */
- const SKP_int *NLSFIndices, /* I Pointer to NLSF indices [nStages x 1] */
- const SKP_int LPC_order /* I LPC order used */
-)
-{
- const SKP_int16 *pCB_element;
- SKP_int s;
- SKP_int i;
-
- /* Check that each index is within valid range */
- SKP_assert( 0 <= NLSFIndices[ 0 ] && NLSFIndices[ 0 ] < psNLSF_CB->CBStages[ 0 ].nVectors );
-
- /* Point to the first vector element */
- pCB_element = &psNLSF_CB->CBStages[ 0 ].CB_NLSF_Q15[ SKP_MUL( NLSFIndices[ 0 ], LPC_order ) ];
-
- /* Initialize with the codebook vector from stage 0 */
- for( i = 0; i < LPC_order; i++ ) {
- pNLSF_Q15[ i ] = ( SKP_int )pCB_element[ i ];
- }
-
- for( s = 1; s < psNLSF_CB->nStages; s++ ) {
- /* Check that each index is within valid range */
- SKP_assert( 0 <= NLSFIndices[ s ] && NLSFIndices[ s ] < psNLSF_CB->CBStages[ s ].nVectors );
-
- if( LPC_order == 16 ) {
- /* Point to the first vector element */
- pCB_element = &psNLSF_CB->CBStages[ s ].CB_NLSF_Q15[ SKP_LSHIFT( NLSFIndices[ s ], 4 ) ];
-
- /* Add the codebook vector from the current stage */
- pNLSF_Q15[ 0 ] += pCB_element[ 0 ];
- pNLSF_Q15[ 1 ] += pCB_element[ 1 ];
- pNLSF_Q15[ 2 ] += pCB_element[ 2 ];
- pNLSF_Q15[ 3 ] += pCB_element[ 3 ];
- pNLSF_Q15[ 4 ] += pCB_element[ 4 ];
- pNLSF_Q15[ 5 ] += pCB_element[ 5 ];
- pNLSF_Q15[ 6 ] += pCB_element[ 6 ];
- pNLSF_Q15[ 7 ] += pCB_element[ 7 ];
- pNLSF_Q15[ 8 ] += pCB_element[ 8 ];
- pNLSF_Q15[ 9 ] += pCB_element[ 9 ];
- pNLSF_Q15[ 10 ] += pCB_element[ 10 ];
- pNLSF_Q15[ 11 ] += pCB_element[ 11 ];
- pNLSF_Q15[ 12 ] += pCB_element[ 12 ];
- pNLSF_Q15[ 13 ] += pCB_element[ 13 ];
- pNLSF_Q15[ 14 ] += pCB_element[ 14 ];
- pNLSF_Q15[ 15 ] += pCB_element[ 15 ];
- } else {
- /* Point to the first vector element */
- pCB_element = &psNLSF_CB->CBStages[ s ].CB_NLSF_Q15[ SKP_SMULBB( NLSFIndices[ s ], LPC_order ) ];
-
- /* Add the codebook vector from the current stage */
- for( i = 0; i < LPC_order; i++ ) {
- pNLSF_Q15[ i ] += pCB_element[ i ];
- }
- }
- }
-
- /* NLSF stabilization */
- SKP_Silk_NLSF_stabilize( pNLSF_Q15, psNLSF_CB->NDeltaMin_Q15, LPC_order );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-
-/***********************/
-/* NLSF vector encoder */
-/***********************/
-void SKP_Silk_NLSF_MSVQ_encode_FIX(
- SKP_int *NLSFIndices, /* O Codebook path vector [ CB_STAGES ] */
- SKP_int *pNLSF_Q15, /* I/O Quantized NLSF vector [ LPC_ORDER ] */
- const SKP_Silk_NLSF_CB_struct *psNLSF_CB, /* I Codebook object */
- const SKP_int *pNLSF_q_Q15_prev, /* I Prev. quantized NLSF vector [LPC_ORDER] */
- const SKP_int *pW_Q6, /* I NLSF weight vector [ LPC_ORDER ] */
- const SKP_int NLSF_mu_Q15, /* I Rate weight for the RD optimization */
- const SKP_int NLSF_mu_fluc_red_Q16, /* I Fluctuation reduction error weight */
- const SKP_int NLSF_MSVQ_Survivors, /* I Max survivors from each stage */
- const SKP_int LPC_order, /* I LPC order */
- const SKP_int deactivate_fluc_red /* I Deactivate fluctuation reduction */
-)
-{
- SKP_int i, s, k, cur_survivors = 0, prev_survivors, min_survivors, input_index, cb_index, bestIndex;
- SKP_int32 rateDistThreshold_Q18;
-#if( NLSF_MSVQ_FLUCTUATION_REDUCTION == 1 )
- SKP_int32 se_Q15, wsse_Q20, bestRateDist_Q20;
-#endif
-
-#if( LOW_COMPLEXITY_ONLY == 1 )
- SKP_int32 pRateDist_Q18[ NLSF_MSVQ_TREE_SEARCH_MAX_VECTORS_EVALUATED_LC_MODE ];
- SKP_int32 pRate_Q5[ MAX_NLSF_MSVQ_SURVIVORS_LC_MODE ];
- SKP_int32 pRate_new_Q5[ MAX_NLSF_MSVQ_SURVIVORS_LC_MODE ];
- SKP_int pTempIndices[ MAX_NLSF_MSVQ_SURVIVORS_LC_MODE ];
- SKP_int pPath[ MAX_NLSF_MSVQ_SURVIVORS_LC_MODE * NLSF_MSVQ_MAX_CB_STAGES ];
- SKP_int pPath_new[ MAX_NLSF_MSVQ_SURVIVORS_LC_MODE * NLSF_MSVQ_MAX_CB_STAGES ];
- SKP_int pRes_Q15[ MAX_NLSF_MSVQ_SURVIVORS_LC_MODE * MAX_LPC_ORDER ];
- SKP_int pRes_new_Q15[ MAX_NLSF_MSVQ_SURVIVORS_LC_MODE * MAX_LPC_ORDER ];
-#else
- SKP_int32 pRateDist_Q18[ NLSF_MSVQ_TREE_SEARCH_MAX_VECTORS_EVALUATED ];
- SKP_int32 pRate_Q5[ MAX_NLSF_MSVQ_SURVIVORS ];
- SKP_int32 pRate_new_Q5[ MAX_NLSF_MSVQ_SURVIVORS ];
- SKP_int pTempIndices[ MAX_NLSF_MSVQ_SURVIVORS ];
- SKP_int pPath[ MAX_NLSF_MSVQ_SURVIVORS * NLSF_MSVQ_MAX_CB_STAGES ];
- SKP_int pPath_new[ MAX_NLSF_MSVQ_SURVIVORS * NLSF_MSVQ_MAX_CB_STAGES ];
- SKP_int pRes_Q15[ MAX_NLSF_MSVQ_SURVIVORS * MAX_LPC_ORDER ];
- SKP_int pRes_new_Q15[ MAX_NLSF_MSVQ_SURVIVORS * MAX_LPC_ORDER ];
-#endif
-
- const SKP_int *pConstInt;
- SKP_int *pInt;
- const SKP_int16 *pCB_element;
- const SKP_Silk_NLSF_CBS *pCurrentCBStage;
-
-#ifdef USE_UNQUANTIZED_LSFS
- SKP_int NLSF_orig[ MAX_LPC_ORDER ];
- SKP_memcpy( NLSF_orig, pNLSF_Q15, LPC_order * sizeof( SKP_int ) );
-#endif
-
- SKP_assert( NLSF_MSVQ_Survivors <= MAX_NLSF_MSVQ_SURVIVORS );
- SKP_assert( ( LOW_COMPLEXITY_ONLY == 0 ) || ( NLSF_MSVQ_Survivors <= MAX_NLSF_MSVQ_SURVIVORS_LC_MODE ) );
-
-
- /****************************************************/
- /* Tree search for the multi-stage vector quantizer */
- /****************************************************/
-
- /* Clear accumulated rates */
- SKP_memset( pRate_Q5, 0, NLSF_MSVQ_Survivors * sizeof( SKP_int32 ) );
-
- /* Copy NLSFs into residual signal vector */
- for( i = 0; i < LPC_order; i++ ) {
- pRes_Q15[ i ] = pNLSF_Q15[ i ];
- }
-
- /* Set first stage values */
- prev_survivors = 1;
-
- /* Minimum number of survivors */
- min_survivors = NLSF_MSVQ_Survivors / 2;
-
- /* Loop over all stages */
- for( s = 0; s < psNLSF_CB->nStages; s++ ) {
-
- /* Set a pointer to the current stage codebook */
- pCurrentCBStage = &psNLSF_CB->CBStages[ s ];
-
- /* Calculate the number of survivors in the current stage */
- cur_survivors = SKP_min_32( NLSF_MSVQ_Survivors, SKP_SMULBB( prev_survivors, pCurrentCBStage->nVectors ) );
-
-#if( NLSF_MSVQ_FLUCTUATION_REDUCTION == 0 )
- /* Find a single best survivor in the last stage, if we */
- /* do not need candidates for fluctuation reduction */
- if( s == psNLSF_CB->nStages - 1 ) {
- cur_survivors = 1;
- }
-#endif
-
- /* Nearest neighbor clustering for multiple input data vectors */
- SKP_Silk_NLSF_VQ_rate_distortion_FIX( pRateDist_Q18, pCurrentCBStage, pRes_Q15, pW_Q6,
- pRate_Q5, NLSF_mu_Q15, prev_survivors, LPC_order );
-
- /* Sort the rate-distortion errors */
- SKP_Silk_insertion_sort_increasing( pRateDist_Q18, pTempIndices,
- prev_survivors * pCurrentCBStage->nVectors, cur_survivors );
-
- /* Discard survivors with rate-distortion values too far above the best one */
- if( pRateDist_Q18[ 0 ] < SKP_int32_MAX / MAX_NLSF_MSVQ_SURVIVORS ) {
- rateDistThreshold_Q18 = SKP_SMLAWB( pRateDist_Q18[ 0 ],
- SKP_MUL( NLSF_MSVQ_Survivors, pRateDist_Q18[ 0 ] ), SKP_FIX_CONST( NLSF_MSVQ_SURV_MAX_REL_RD, 16 ) );
- while( pRateDist_Q18[ cur_survivors - 1 ] > rateDistThreshold_Q18 && cur_survivors > min_survivors ) {
- cur_survivors--;
- }
- }
- /* Update accumulated codebook contributions for the 'cur_survivors' best codebook indices */
- for( k = 0; k < cur_survivors; k++ ) {
- if( s > 0 ) {
- /* Find the indices of the input and the codebook vector */
- if( pCurrentCBStage->nVectors == 8 ) {
- input_index = SKP_RSHIFT( pTempIndices[ k ], 3 );
- cb_index = pTempIndices[ k ] & 7;
- } else {
- input_index = SKP_DIV32_16( pTempIndices[ k ], pCurrentCBStage->nVectors );
- cb_index = pTempIndices[ k ] - SKP_SMULBB( input_index, pCurrentCBStage->nVectors );
- }
- } else {
- /* Find the indices of the input and the codebook vector */
- input_index = 0;
- cb_index = pTempIndices[ k ];
- }
-
- /* Subtract new contribution from the previous residual vector for each of 'cur_survivors' */
- pConstInt = &pRes_Q15[ SKP_SMULBB( input_index, LPC_order ) ];
- pCB_element = &pCurrentCBStage->CB_NLSF_Q15[ SKP_SMULBB( cb_index, LPC_order ) ];
- pInt = &pRes_new_Q15[ SKP_SMULBB( k, LPC_order ) ];
- for( i = 0; i < LPC_order; i++ ) {
- pInt[ i ] = pConstInt[ i ] - ( SKP_int )pCB_element[ i ];
- }
-
- /* Update accumulated rate for stage 1 to the current */
- pRate_new_Q5[ k ] = pRate_Q5[ input_index ] + pCurrentCBStage->Rates_Q5[ cb_index ];
-
- /* Copy paths from previous matrix, starting with the best path */
- pConstInt = &pPath[ SKP_SMULBB( input_index, psNLSF_CB->nStages ) ];
- pInt = &pPath_new[ SKP_SMULBB( k, psNLSF_CB->nStages ) ];
- for( i = 0; i < s; i++ ) {
- pInt[ i ] = pConstInt[ i ];
- }
- /* Write the current stage indices for the 'cur_survivors' to the best path matrix */
- pInt[ s ] = cb_index;
- }
-
- if( s < psNLSF_CB->nStages - 1 ) {
- /* Copy NLSF residual matrix for next stage */
- SKP_memcpy( pRes_Q15, pRes_new_Q15, SKP_SMULBB( cur_survivors, LPC_order ) * sizeof( SKP_int ) );
-
- /* Copy rate vector for next stage */
- SKP_memcpy( pRate_Q5, pRate_new_Q5, cur_survivors * sizeof( SKP_int32 ) );
-
- /* Copy best path matrix for next stage */
- SKP_memcpy( pPath, pPath_new, SKP_SMULBB( cur_survivors, psNLSF_CB->nStages ) * sizeof( SKP_int ) );
- }
-
- prev_survivors = cur_survivors;
- }
-
- /* (Preliminary) index of the best survivor, later to be decoded */
- bestIndex = 0;
-
-#if( NLSF_MSVQ_FLUCTUATION_REDUCTION == 1 )
- /******************************/
- /* NLSF fluctuation reduction */
- /******************************/
- if( deactivate_fluc_red != 1 ) {
-
- /* Search among all survivors, now taking also weighted fluctuation errors into account */
- bestRateDist_Q20 = SKP_int32_MAX;
- for( s = 0; s < cur_survivors; s++ ) {
- /* Decode survivor to compare with previous quantized NLSF vector */
- SKP_Silk_NLSF_MSVQ_decode( pNLSF_Q15, psNLSF_CB, &pPath_new[ SKP_SMULBB( s, psNLSF_CB->nStages ) ], LPC_order );
-
- /* Compare decoded NLSF vector with the previously quantized vector */
- wsse_Q20 = 0;
- for( i = 0; i < LPC_order; i += 2 ) {
- /* Compute weighted squared quantization error for index i */
- se_Q15 = pNLSF_Q15[ i ] - pNLSF_q_Q15_prev[ i ]; // range: [ -32767 : 32767 ]
- wsse_Q20 = SKP_SMLAWB( wsse_Q20, SKP_SMULBB( se_Q15, se_Q15 ), pW_Q6[ i ] );
-
- /* Compute weighted squared quantization error for index i + 1 */
- se_Q15 = pNLSF_Q15[ i + 1 ] - pNLSF_q_Q15_prev[ i + 1 ]; // range: [ -32767 : 32767 ]
- wsse_Q20 = SKP_SMLAWB( wsse_Q20, SKP_SMULBB( se_Q15, se_Q15 ), pW_Q6[ i + 1 ] );
- }
- SKP_assert( wsse_Q20 >= 0 );
-
- /* Add the fluctuation reduction penalty to the rate distortion error */
- wsse_Q20 = SKP_ADD_POS_SAT32( pRateDist_Q18[ s ], SKP_SMULWB( wsse_Q20, NLSF_mu_fluc_red_Q16 ) );
-
- /* Keep index of best survivor */
- if( wsse_Q20 < bestRateDist_Q20 ) {
- bestRateDist_Q20 = wsse_Q20;
- bestIndex = s;
- }
- }
- }
-#endif
-
- /* Copy best path to output argument */
- SKP_memcpy( NLSFIndices, &pPath_new[ SKP_SMULBB( bestIndex, psNLSF_CB->nStages ) ], psNLSF_CB->nStages * sizeof( SKP_int ) );
-
- /* Decode and stabilize the best survivor */
- SKP_Silk_NLSF_MSVQ_decode( pNLSF_Q15, psNLSF_CB, NLSFIndices, LPC_order );
-
-#ifdef USE_UNQUANTIZED_LSFS
- SKP_memcpy( pNLSF_Q15, NLSF_orig, LPC_order * sizeof( SKP_int ) );
-#endif
-
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-
-/* Rate-Distortion calculations for multiple input data vectors */
-void SKP_Silk_NLSF_VQ_rate_distortion_FIX(
- SKP_int32 *pRD_Q20, /* O Rate-distortion values [psNLSF_CBS->nVectors*N] */
- const SKP_Silk_NLSF_CBS *psNLSF_CBS, /* I NLSF codebook stage struct */
- const SKP_int *in_Q15, /* I Input vectors to be quantized */
- const SKP_int *w_Q6, /* I Weight vector */
- const SKP_int32 *rate_acc_Q5, /* I Accumulated rates from previous stage */
- const SKP_int mu_Q15, /* I Weight between weighted error and rate */
- const SKP_int N, /* I Number of input vectors to be quantized */
- const SKP_int LPC_order /* I LPC order */
-)
-{
- SKP_int i, n;
- SKP_int32 *pRD_vec_Q20;
-
- /* Compute weighted quantization errors for all input vectors over one codebook stage */
- SKP_Silk_NLSF_VQ_sum_error_FIX( pRD_Q20, in_Q15, w_Q6, psNLSF_CBS->CB_NLSF_Q15,
- N, psNLSF_CBS->nVectors, LPC_order );
-
- /* Loop over input vectors */
- pRD_vec_Q20 = pRD_Q20;
- for( n = 0; n < N; n++ ) {
- /* Add rate cost to error for each codebook vector */
- for( i = 0; i < psNLSF_CBS->nVectors; i++ ) {
- SKP_assert( rate_acc_Q5[ n ] + psNLSF_CBS->Rates_Q5[ i ] >= 0 );
- SKP_assert( rate_acc_Q5[ n ] + psNLSF_CBS->Rates_Q5[ i ] <= SKP_int16_MAX );
- pRD_vec_Q20[ i ] = SKP_SMLABB( pRD_vec_Q20[ i ], rate_acc_Q5[ n ] + psNLSF_CBS->Rates_Q5[ i ], mu_Q15 );
- SKP_assert( pRD_vec_Q20[ i ] >= 0 );
- }
- pRD_vec_Q20 += psNLSF_CBS->nVectors;
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-
-
-/* Compute weighted quantization errors for an LPC_order element input vector, over one codebook stage */
-void SKP_Silk_NLSF_VQ_sum_error_FIX(
- SKP_int32 *err_Q20, /* O Weighted quantization errors [N*K] */
- const SKP_int *in_Q15, /* I Input vectors to be quantized [N*LPC_order] */
- const SKP_int *w_Q6, /* I Weighting vectors [N*LPC_order] */
- const SKP_int16 *pCB_Q15, /* I Codebook vectors [K*LPC_order] */
- const SKP_int N, /* I Number of input vectors */
- const SKP_int K, /* I Number of codebook vectors */
- const SKP_int LPC_order /* I Number of LPCs */
-)
-{
- SKP_int i, n, m;
- SKP_int32 diff_Q15, sum_error, Wtmp_Q6;
- SKP_int32 Wcpy_Q6[ MAX_LPC_ORDER / 2 ];
- const SKP_int16 *cb_vec_Q15;
-
- SKP_assert( LPC_order <= 16 );
- SKP_assert( ( LPC_order & 1 ) == 0 );
-
- /* Copy to local stack and pack two weights per int32 */
- for( m = 0; m < SKP_RSHIFT( LPC_order, 1 ); m++ ) {
- Wcpy_Q6[ m ] = w_Q6[ 2 * m ] | SKP_LSHIFT( ( SKP_int32 )w_Q6[ 2 * m + 1 ], 16 );
- }
-
- /* Loop over input vectors */
- for( n = 0; n < N; n++ ) {
- /* Loop over codebook */
- cb_vec_Q15 = pCB_Q15;
- for( i = 0; i < K; i++ ) {
- sum_error = 0;
- for( m = 0; m < LPC_order; m += 2 ) {
- /* Get two weights packed in an int32 */
- Wtmp_Q6 = Wcpy_Q6[ SKP_RSHIFT( m, 1 ) ];
-
- /* Compute weighted squared quantization error for index m */
- diff_Q15 = in_Q15[ m ] - *cb_vec_Q15++; // range: [ -32767 : 32767 ]
- sum_error = SKP_SMLAWB( sum_error, SKP_SMULBB( diff_Q15, diff_Q15 ), Wtmp_Q6 );
-
- /* Compute weighted squared quantization error for index m + 1 */
- diff_Q15 = in_Q15[m + 1] - *cb_vec_Q15++; // range: [ -32767 : 32767 ]
- sum_error = SKP_SMLAWT( sum_error, SKP_SMULBB( diff_Q15, diff_Q15 ), Wtmp_Q6 );
- }
- SKP_assert( sum_error >= 0 );
- err_Q20[ i ] = sum_error;
- }
- err_Q20 += K;
- in_Q15 += LPC_order;
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_SigProc_FIX.h"
-
-/*
-R. Laroia, N. Phamdo and N. Farvardin, "Robust and Efficient Quantization of Speech LSP
-Parameters Using Structured Vector Quantization", Proc. IEEE Int. Conf. Acoust., Speech,
-Signal Processing, pp. 641-644, 1991.
-*/
-
-#define Q_OUT 6
-#define MIN_NDELTA 3
-
-/* Laroia low complexity NLSF weights */
-void SKP_Silk_NLSF_VQ_weights_laroia(
- SKP_int *pNLSFW_Q6, /* O: Pointer to input vector weights [D x 1] */
- const SKP_int *pNLSF_Q15, /* I: Pointer to input vector [D x 1] */
- const SKP_int D /* I: Input vector dimension (even) */
-)
-{
- SKP_int k;
- SKP_int32 tmp1_int, tmp2_int;
-
- /* Check that we are guaranteed to end up within the required range */
- SKP_assert( D > 0 );
- SKP_assert( ( D & 1 ) == 0 );
-
- /* First value */
- tmp1_int = SKP_max_int( pNLSF_Q15[ 0 ], MIN_NDELTA );
- tmp1_int = SKP_DIV32_16( 1 << ( 15 + Q_OUT ), tmp1_int );
- tmp2_int = SKP_max_int( pNLSF_Q15[ 1 ] - pNLSF_Q15[ 0 ], MIN_NDELTA );
- tmp2_int = SKP_DIV32_16( 1 << ( 15 + Q_OUT ), tmp2_int );
- pNLSFW_Q6[ 0 ] = (SKP_int)SKP_min_int( tmp1_int + tmp2_int, SKP_int16_MAX );
- SKP_assert( pNLSFW_Q6[ 0 ] > 0 );
-
- /* Main loop */
- for( k = 1; k < D - 1; k += 2 ) {
- tmp1_int = SKP_max_int( pNLSF_Q15[ k + 1 ] - pNLSF_Q15[ k ], MIN_NDELTA );
- tmp1_int = SKP_DIV32_16( 1 << ( 15 + Q_OUT ), tmp1_int );
- pNLSFW_Q6[ k ] = (SKP_int)SKP_min_int( tmp1_int + tmp2_int, SKP_int16_MAX );
- SKP_assert( pNLSFW_Q6[ k ] > 0 );
-
- tmp2_int = SKP_max_int( pNLSF_Q15[ k + 2 ] - pNLSF_Q15[ k + 1 ], MIN_NDELTA );
- tmp2_int = SKP_DIV32_16( 1 << ( 15 + Q_OUT ), tmp2_int );
- pNLSFW_Q6[ k + 1 ] = (SKP_int)SKP_min_int( tmp1_int + tmp2_int, SKP_int16_MAX );
- SKP_assert( pNLSFW_Q6[ k + 1 ] > 0 );
- }
-
- /* Last value */
- tmp1_int = SKP_max_int( ( 1 << 15 ) - pNLSF_Q15[ D - 1 ], MIN_NDELTA );
- tmp1_int = SKP_DIV32_16( 1 << ( 15 + Q_OUT ), tmp1_int );
- pNLSFW_Q6[ D - 1 ] = (SKP_int)SKP_min_int( tmp1_int + tmp2_int, SKP_int16_MAX );
- SKP_assert( pNLSFW_Q6[ D - 1 ] > 0 );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* NLSF stabilizer: */
-/* */
-/* - Moves NLSFs futher apart if they are too close */
-/* - Moves NLSFs away from borders if they are too close */
-/* - High effort to achieve a modification with minimum */
-/* Euclidean distance to input vector */
-/* - Output are sorted NLSF coefficients */
-/* */
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Constant Definitions */
-#define MAX_LOOPS 20
-
-/* NLSF stabilizer, for a single input data vector */
-void SKP_Silk_NLSF_stabilize(
- SKP_int *NLSF_Q15, /* I/O: Unstable/stabilized normalized LSF vector in Q15 [L] */
- const SKP_int *NDeltaMin_Q15, /* I: Normalized delta min vector in Q15, NDeltaMin_Q15[L] must be >= 1 [L+1] */
- const SKP_int L /* I: Number of NLSF parameters in the input vector */
-)
-{
- SKP_int center_freq_Q15, diff_Q15, min_center_Q15, max_center_Q15;
- SKP_int32 min_diff_Q15;
- SKP_int loops;
- SKP_int i, I=0, k;
-
- /* This is necessary to ensure an output within range of a SKP_int16 */
- SKP_assert( NDeltaMin_Q15[L] >= 1 );
-
- for( loops = 0; loops < MAX_LOOPS; loops++ ) {
- /**************************/
- /* Find smallest distance */
- /**************************/
- /* First element */
- min_diff_Q15 = NLSF_Q15[0] - NDeltaMin_Q15[0];
- I = 0;
- /* Middle elements */
- for( i = 1; i <= L-1; i++ ) {
- diff_Q15 = NLSF_Q15[i] - ( NLSF_Q15[i-1] + NDeltaMin_Q15[i] );
- if( diff_Q15 < min_diff_Q15 ) {
- min_diff_Q15 = diff_Q15;
- I = i;
- }
- }
- /* Last element */
- diff_Q15 = (1<<15) - ( NLSF_Q15[L-1] + NDeltaMin_Q15[L] );
- if( diff_Q15 < min_diff_Q15 ) {
- min_diff_Q15 = diff_Q15;
- I = L;
- }
-
- /***************************************************/
- /* Now check if the smallest distance non-negative */
- /***************************************************/
- if (min_diff_Q15 >= 0) {
- return;
- }
-
- if( I == 0 ) {
- /* Move away from lower limit */
- NLSF_Q15[0] = NDeltaMin_Q15[0];
-
- } else if( I == L) {
- /* Move away from higher limit */
- NLSF_Q15[L-1] = (1<<15) - NDeltaMin_Q15[L];
-
- } else {
- /* Find the lower extreme for the location of the current center frequency */
- min_center_Q15 = 0;
- for( k = 0; k < I; k++ ) {
- min_center_Q15 += NDeltaMin_Q15[k];
- }
- min_center_Q15 += SKP_RSHIFT( NDeltaMin_Q15[I], 1 );
-
- /* Find the upper extreme for the location of the current center frequency */
- max_center_Q15 = (1<<15);
- for( k = L; k > I; k-- ) {
- max_center_Q15 -= NDeltaMin_Q15[k];
- }
- max_center_Q15 -= ( NDeltaMin_Q15[I] - SKP_RSHIFT( NDeltaMin_Q15[I], 1 ) );
-
- /* Move apart, sorted by value, keeping the same center frequency */
- center_freq_Q15 = SKP_LIMIT_32( SKP_RSHIFT_ROUND( (SKP_int32)NLSF_Q15[I-1] + (SKP_int32)NLSF_Q15[I], 1 ),
- min_center_Q15, max_center_Q15 );
- NLSF_Q15[I-1] = center_freq_Q15 - SKP_RSHIFT( NDeltaMin_Q15[I], 1 );
- NLSF_Q15[I] = NLSF_Q15[I-1] + NDeltaMin_Q15[I];
- }
- }
-
- /* Safe and simple fall back method, which is less ideal than the above */
- if( loops == MAX_LOOPS )
- {
- /* Insertion sort (fast for already almost sorted arrays): */
- /* Best case: O(n) for an already sorted array */
- /* Worst case: O(n^2) for an inversely sorted array */
- SKP_Silk_insertion_sort_increasing_all_values(&NLSF_Q15[0], L);
-
- /* First NLSF should be no less than NDeltaMin[0] */
- NLSF_Q15[0] = SKP_max_int( NLSF_Q15[0], NDeltaMin_Q15[0] );
-
- /* Keep delta_min distance between the NLSFs */
- for( i = 1; i < L; i++ )
- NLSF_Q15[i] = SKP_max_int( NLSF_Q15[i], NLSF_Q15[i-1] + NDeltaMin_Q15[i] );
-
- /* Last NLSF should be no higher than 1 - NDeltaMin[L] */
- NLSF_Q15[L-1] = SKP_min_int( NLSF_Q15[L-1], (1<<15) - NDeltaMin_Q15[L] );
-
- /* Keep NDeltaMin distance between the NLSFs */
- for( i = L-2; i >= 0; i-- )
- NLSF_Q15[i] = SKP_min_int( NLSF_Q15[i], NLSF_Q15[i+1] - NDeltaMin_Q15[i+1] );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-SKP_INLINE void SKP_Silk_nsq_scale_states(
- SKP_Silk_nsq_state *NSQ, /* I/O NSQ state */
- const SKP_int16 x[], /* I input in Q0 */
- SKP_int32 x_sc_Q10[], /* O input scaled with 1/Gain */
- SKP_int subfr_length, /* I length of input */
- const SKP_int16 sLTP[], /* I re-whitened LTP state in Q0 */
- SKP_int32 sLTP_Q16[], /* O LTP state matching scaled input */
- SKP_int subfr, /* I subframe number */
- const SKP_int LTP_scale_Q14, /* I */
- const SKP_int32 Gains_Q16[ NB_SUBFR ], /* I */
- const SKP_int pitchL[ NB_SUBFR ] /* I */
-);
-
-SKP_INLINE void SKP_Silk_noise_shape_quantizer(
- SKP_Silk_nsq_state *NSQ, /* I/O NSQ state */
- SKP_int sigtype, /* I Signal type */
- const SKP_int32 x_sc_Q10[], /* I */
- SKP_int8 q[], /* O */
- SKP_int16 xq[], /* O */
- SKP_int32 sLTP_Q16[], /* I/O LTP state */
- const SKP_int16 a_Q12[], /* I Short term prediction coefs */
- const SKP_int16 b_Q14[], /* I Long term prediction coefs */
- const SKP_int16 AR_shp_Q13[], /* I Noise shaping AR coefs */
- SKP_int lag, /* I Pitch lag */
- SKP_int32 HarmShapeFIRPacked_Q14, /* I */
- SKP_int Tilt_Q14, /* I Spectral tilt */
- SKP_int32 LF_shp_Q14, /* I */
- SKP_int32 Gain_Q16, /* I */
- SKP_int Lambda_Q10, /* I */
- SKP_int offset_Q10, /* I */
- SKP_int length, /* I Input length */
- SKP_int shapingLPCOrder, /* I Noise shaping AR filter order */
- SKP_int predictLPCOrder /* I Prediction filter order */
-);
-
-void SKP_Silk_NSQ(
- SKP_Silk_encoder_state *psEncC, /* I/O Encoder State */
- SKP_Silk_encoder_control *psEncCtrlC, /* I Encoder Control */
- SKP_Silk_nsq_state *NSQ, /* I/O NSQ state */
- const SKP_int16 x[], /* I prefiltered input signal */
- SKP_int8 q[], /* O quantized qulse signal */
- const SKP_int LSFInterpFactor_Q2, /* I LSF interpolation factor in Q2 */
- const SKP_int16 PredCoef_Q12[ 2 * MAX_LPC_ORDER ], /* I Short term prediction coefficients */
- const SKP_int16 LTPCoef_Q14[ LTP_ORDER * NB_SUBFR ], /* I Long term prediction coefficients */
- const SKP_int16 AR2_Q13[ NB_SUBFR * MAX_SHAPE_LPC_ORDER ], /* I */
- const SKP_int HarmShapeGain_Q14[ NB_SUBFR ], /* I */
- const SKP_int Tilt_Q14[ NB_SUBFR ], /* I Spectral tilt */
- const SKP_int32 LF_shp_Q14[ NB_SUBFR ], /* I */
- const SKP_int32 Gains_Q16[ NB_SUBFR ], /* I */
- const SKP_int Lambda_Q10, /* I */
- const SKP_int LTP_scale_Q14 /* I LTP state scaling */
-)
-{
- SKP_int k, lag, start_idx, subfr_length, LSF_interpolation_flag;
- const SKP_int16 *A_Q12, *B_Q14, *AR_shp_Q13;
- SKP_int16 *pxq;
- SKP_int32 sLTP_Q16[ 2 * MAX_FRAME_LENGTH ];
- SKP_int16 sLTP[ 2 * MAX_FRAME_LENGTH ];
- SKP_int32 HarmShapeFIRPacked_Q14;
- SKP_int offset_Q10;
- SKP_int32 FiltState[ MAX_LPC_ORDER ];
- SKP_int32 x_sc_Q10[ MAX_FRAME_LENGTH / NB_SUBFR ];
-
- subfr_length = psEncC->frame_length / NB_SUBFR;
-
- NSQ->rand_seed = psEncCtrlC->Seed;
- /* Set unvoiced lag to the previous one, overwrite later for voiced */
- lag = NSQ->lagPrev;
-
- SKP_assert( NSQ->prev_inv_gain_Q16 != 0 );
-
- offset_Q10 = SKP_Silk_Quantization_Offsets_Q10[ psEncCtrlC->sigtype ][ psEncCtrlC->QuantOffsetType ];
-
- if( LSFInterpFactor_Q2 == ( 1 << 2 ) ) {
- LSF_interpolation_flag = 0;
- } else {
- LSF_interpolation_flag = 1;
- }
-
- /* Setup pointers to start of sub frame */
- NSQ->sLTP_shp_buf_idx = psEncC->frame_length;
- NSQ->sLTP_buf_idx = psEncC->frame_length;
- pxq = &NSQ->xq[ psEncC->frame_length ];
- for( k = 0; k < NB_SUBFR; k++ ) {
- A_Q12 = &PredCoef_Q12[ (( k >> 1 ) | ( 1 - LSF_interpolation_flag )) * MAX_LPC_ORDER ];
- B_Q14 = <PCoef_Q14[ k * LTP_ORDER ];
- AR_shp_Q13 = &AR2_Q13[ k * MAX_SHAPE_LPC_ORDER ];
-
- /* Noise shape parameters */
- SKP_assert( HarmShapeGain_Q14[ k ] >= 0 );
- HarmShapeFIRPacked_Q14 = SKP_RSHIFT( HarmShapeGain_Q14[ k ], 2 );
- HarmShapeFIRPacked_Q14 |= SKP_LSHIFT( ( SKP_int32 )SKP_RSHIFT( HarmShapeGain_Q14[ k ], 1 ), 16 );
-
- NSQ->rewhite_flag = 0;
- if( psEncCtrlC->sigtype == SIG_TYPE_VOICED ) {
- /* Voiced */
- lag = psEncCtrlC->pitchL[ k ];
-
- /* Re-whitening */
- if( ( k & ( 3 - SKP_LSHIFT( LSF_interpolation_flag, 1 ) ) ) == 0 ) {
-
- /* Rewhiten with new A coefs */
- start_idx = psEncC->frame_length - lag - psEncC->predictLPCOrder - LTP_ORDER / 2;
- SKP_assert( start_idx >= 0 );
- SKP_assert( start_idx <= psEncC->frame_length - psEncC->predictLPCOrder );
-
- SKP_memset( FiltState, 0, psEncC->predictLPCOrder * sizeof( SKP_int32 ) );
- SKP_Silk_MA_Prediction( &NSQ->xq[ start_idx + k * ( psEncC->frame_length >> 2 ) ],
- A_Q12, FiltState, sLTP + start_idx, psEncC->frame_length - start_idx, psEncC->predictLPCOrder );
-
- NSQ->rewhite_flag = 1;
- NSQ->sLTP_buf_idx = psEncC->frame_length;
- }
- }
-
- SKP_Silk_nsq_scale_states( NSQ, x, x_sc_Q10, psEncC->subfr_length, sLTP,
- sLTP_Q16, k, LTP_scale_Q14, Gains_Q16, psEncCtrlC->pitchL );
-
- SKP_Silk_noise_shape_quantizer( NSQ, psEncCtrlC->sigtype, x_sc_Q10, q, pxq, sLTP_Q16, A_Q12, B_Q14,
- AR_shp_Q13, lag, HarmShapeFIRPacked_Q14, Tilt_Q14[ k ], LF_shp_Q14[ k ], Gains_Q16[ k ], Lambda_Q10,
- offset_Q10, psEncC->subfr_length, psEncC->shapingLPCOrder, psEncC->predictLPCOrder
- );
-
- x += psEncC->subfr_length;
- q += psEncC->subfr_length;
- pxq += psEncC->subfr_length;
- }
-
- /* Update lagPrev for next frame */
- NSQ->lagPrev = psEncCtrlC->pitchL[ NB_SUBFR - 1 ];
-
- /* Save quantized speech and noise shaping signals */
- SKP_memcpy( NSQ->xq, &NSQ->xq[ psEncC->frame_length ], psEncC->frame_length * sizeof( SKP_int16 ) );
- SKP_memcpy( NSQ->sLTP_shp_Q10, &NSQ->sLTP_shp_Q10[ psEncC->frame_length ], psEncC->frame_length * sizeof( SKP_int32 ) );
-
-#ifdef USE_UNQUANTIZED_LSFS
- DEBUG_STORE_DATA( xq_unq_lsfs.pcm, NSQ->xq, psEncC->frame_length * sizeof( SKP_int16 ) );
-#endif
-
-}
-
-/***********************************/
-/* SKP_Silk_noise_shape_quantizer */
-/***********************************/
-SKP_INLINE void SKP_Silk_noise_shape_quantizer(
- SKP_Silk_nsq_state *NSQ, /* I/O NSQ state */
- SKP_int sigtype, /* I Signal type */
- const SKP_int32 x_sc_Q10[], /* I */
- SKP_int8 q[], /* O */
- SKP_int16 xq[], /* O */
- SKP_int32 sLTP_Q16[], /* I/O LTP state */
- const SKP_int16 a_Q12[], /* I Short term prediction coefs */
- const SKP_int16 b_Q14[], /* I Long term prediction coefs */
- const SKP_int16 AR_shp_Q13[], /* I Noise shaping AR coefs */
- SKP_int lag, /* I Pitch lag */
- SKP_int32 HarmShapeFIRPacked_Q14, /* I */
- SKP_int Tilt_Q14, /* I Spectral tilt */
- SKP_int32 LF_shp_Q14, /* I */
- SKP_int32 Gain_Q16, /* I */
- SKP_int Lambda_Q10, /* I */
- SKP_int offset_Q10, /* I */
- SKP_int length, /* I Input length */
- SKP_int shapingLPCOrder, /* I Noise shaping AR filter order */
- SKP_int predictLPCOrder /* I Prediction filter order */
-)
-{
- SKP_int i, j;
- SKP_int32 LTP_pred_Q14, LPC_pred_Q10, n_AR_Q10, n_LTP_Q14;
- SKP_int32 n_LF_Q10, r_Q10, q_Q0, q_Q10;
- SKP_int32 thr1_Q10, thr2_Q10, thr3_Q10;
- SKP_int32 dither, exc_Q10, LPC_exc_Q10, xq_Q10;
- SKP_int32 tmp1, tmp2, sLF_AR_shp_Q10;
- SKP_int32 *psLPC_Q14, *shp_lag_ptr, *pred_lag_ptr;
-
- shp_lag_ptr = &NSQ->sLTP_shp_Q10[ NSQ->sLTP_shp_buf_idx - lag + HARM_SHAPE_FIR_TAPS / 2 ];
- pred_lag_ptr = &sLTP_Q16[ NSQ->sLTP_buf_idx - lag + LTP_ORDER / 2 ];
-
- /* Setup short term AR state */
- psLPC_Q14 = &NSQ->sLPC_Q14[ NSQ_LPC_BUF_LENGTH - 1 ];
-
- /* Quantization thresholds */
- thr1_Q10 = SKP_SUB_RSHIFT32( -1536, Lambda_Q10, 1 );
- thr2_Q10 = SKP_SUB_RSHIFT32( -512, Lambda_Q10, 1 );
- thr2_Q10 = SKP_ADD_RSHIFT32( thr2_Q10, SKP_SMULBB( offset_Q10, Lambda_Q10 ), 10 );
- thr3_Q10 = SKP_ADD_RSHIFT32( 512, Lambda_Q10, 1 );
-
- for( i = 0; i < length; i++ ) {
- /* Generate dither */
- NSQ->rand_seed = SKP_RAND( NSQ->rand_seed );
-
- /* dither = rand_seed < 0 ? 0xFFFFFFFF : 0; */
- dither = SKP_RSHIFT( NSQ->rand_seed, 31 );
-
- /* Short-term prediction */
- SKP_assert( ( predictLPCOrder & 1 ) == 0 ); /* check that order is even */
- /* check that array starts at 4-byte aligned address */
- SKP_assert( ( ( SKP_int64 )( ( SKP_int8* )a_Q12 - ( SKP_int8* )0 ) & 3 ) == 0 );
- SKP_assert( predictLPCOrder >= 10 ); /* check that unrolling works */
- /* Partially unrolled */
- LPC_pred_Q10 = SKP_SMULWB( psLPC_Q14[ 0 ], a_Q12[ 0 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -1 ], a_Q12[ 1 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -2 ], a_Q12[ 2 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -3 ], a_Q12[ 3 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -4 ], a_Q12[ 4 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -5 ], a_Q12[ 5 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -6 ], a_Q12[ 6 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -7 ], a_Q12[ 7 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -8 ], a_Q12[ 8 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -9 ], a_Q12[ 9 ] );
- for( j = 10; j < predictLPCOrder; j ++ ) {
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -j ], a_Q12[ j ] );
- }
- /* Long-term prediction */
- if( sigtype == SIG_TYPE_VOICED ) {
- /* Unrolled loop */
- LTP_pred_Q14 = SKP_SMULWB( pred_lag_ptr[ 0 ], b_Q14[ 0 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -1 ], b_Q14[ 1 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -2 ], b_Q14[ 2 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -3 ], b_Q14[ 3 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -4 ], b_Q14[ 4 ] );
- pred_lag_ptr++;
- } else {
- LTP_pred_Q14 = 0;
- }
-
- /* Noise shape feedback */
- SKP_assert( ( shapingLPCOrder & 1 ) == 0 ); /* check that order is even */
- tmp2 = psLPC_Q14[ 0 ];
- tmp1 = NSQ->sAR2_Q14[ 0 ];
- NSQ->sAR2_Q14[ 0 ] = tmp2;
- n_AR_Q10 = SKP_SMULWB( tmp2, AR_shp_Q13[ 0 ] );
- for( j = 2; j < shapingLPCOrder; j += 2 ) {
- tmp2 = NSQ->sAR2_Q14[ j - 1 ];
- NSQ->sAR2_Q14[ j - 1 ] = tmp1;
- n_AR_Q10 = SKP_SMLAWB( n_AR_Q10, tmp1, AR_shp_Q13[ j - 1 ] );
- tmp1 = NSQ->sAR2_Q14[ j + 0 ];
- NSQ->sAR2_Q14[ j + 0 ] = tmp2;
- n_AR_Q10 = SKP_SMLAWB( n_AR_Q10, tmp2, AR_shp_Q13[ j ] );
- }
- NSQ->sAR2_Q14[ shapingLPCOrder - 1 ] = tmp1;
- n_AR_Q10 = SKP_SMLAWB( n_AR_Q10, tmp1, AR_shp_Q13[ shapingLPCOrder - 1 ] );
-
- n_AR_Q10 = SKP_RSHIFT( n_AR_Q10, 1 ); /* Q11 -> Q10 */
- n_AR_Q10 = SKP_SMLAWB( n_AR_Q10, NSQ->sLF_AR_shp_Q12, Tilt_Q14 );
-
- n_LF_Q10 = SKP_LSHIFT( SKP_SMULWB( NSQ->sLTP_shp_Q10[ NSQ->sLTP_shp_buf_idx - 1 ], LF_shp_Q14 ), 2 );
- n_LF_Q10 = SKP_SMLAWT( n_LF_Q10, NSQ->sLF_AR_shp_Q12, LF_shp_Q14 );
-
- SKP_assert( lag > 0 || sigtype == SIG_TYPE_UNVOICED );
-
- /* Long-term shaping */
- if( lag > 0 ) {
- /* Symmetric, packed FIR coefficients */
- n_LTP_Q14 = SKP_SMULWB( SKP_ADD32( shp_lag_ptr[ 0 ], shp_lag_ptr[ -2 ] ), HarmShapeFIRPacked_Q14 );
- n_LTP_Q14 = SKP_SMLAWT( n_LTP_Q14, shp_lag_ptr[ -1 ], HarmShapeFIRPacked_Q14 );
- n_LTP_Q14 = SKP_LSHIFT( n_LTP_Q14, 6 );
- shp_lag_ptr++;
- } else {
- n_LTP_Q14 = 0;
- }
-
- /* Input minus prediction plus noise feedback */
- //r = x[ i ] - LTP_pred - LPC_pred + n_AR + n_Tilt + n_LF + n_LTP;
- tmp1 = SKP_SUB32( LTP_pred_Q14, n_LTP_Q14 ); /* Add Q14 stuff */
- tmp1 = SKP_RSHIFT( tmp1, 4 ); /* convert to Q10 */
- tmp1 = SKP_ADD32( tmp1, LPC_pred_Q10 ); /* add Q10 stuff */
- tmp1 = SKP_SUB32( tmp1, n_AR_Q10 ); /* subtract Q10 stuff */
- tmp1 = SKP_SUB32( tmp1, n_LF_Q10 ); /* subtract Q10 stuff */
- r_Q10 = SKP_SUB32( x_sc_Q10[ i ], tmp1 );
-
- /* Flip sign depending on dither */
- r_Q10 = ( r_Q10 ^ dither ) - dither;
- r_Q10 = SKP_SUB32( r_Q10, offset_Q10 );
- r_Q10 = SKP_LIMIT_32( r_Q10, -64 << 10, 64 << 10 );
-
- /* Quantize */
- q_Q0 = 0;
- q_Q10 = 0;
- if( r_Q10 < thr2_Q10 ) {
- if( r_Q10 < thr1_Q10 ) {
- q_Q0 = SKP_RSHIFT_ROUND( SKP_ADD_RSHIFT32( r_Q10, Lambda_Q10, 1 ), 10 );
- q_Q10 = SKP_LSHIFT( q_Q0, 10 );
- } else {
- q_Q0 = -1;
- q_Q10 = -1024;
- }
- } else {
- if( r_Q10 > thr3_Q10 ) {
- q_Q0 = SKP_RSHIFT_ROUND( SKP_SUB_RSHIFT32( r_Q10, Lambda_Q10, 1 ), 10 );
- q_Q10 = SKP_LSHIFT( q_Q0, 10 );
- }
- }
- q[ i ] = ( SKP_int8 )q_Q0; /* No saturation needed because max is 64 */
-
- /* Excitation */
- exc_Q10 = SKP_ADD32( q_Q10, offset_Q10 );
- exc_Q10 = ( exc_Q10 ^ dither ) - dither;
-
- /* Add predictions */
- LPC_exc_Q10 = SKP_ADD32( exc_Q10, SKP_RSHIFT_ROUND( LTP_pred_Q14, 4 ) );
- xq_Q10 = SKP_ADD32( LPC_exc_Q10, LPC_pred_Q10 );
-
- /* Scale XQ back to normal level before saving */
- xq[ i ] = ( SKP_int16 )SKP_SAT16( SKP_RSHIFT_ROUND( SKP_SMULWW( xq_Q10, Gain_Q16 ), 10 ) );
-
-
- /* Update states */
- psLPC_Q14++;
- *psLPC_Q14 = SKP_LSHIFT( xq_Q10, 4 );
- sLF_AR_shp_Q10 = SKP_SUB32( xq_Q10, n_AR_Q10 );
- NSQ->sLF_AR_shp_Q12 = SKP_LSHIFT( sLF_AR_shp_Q10, 2 );
-
- NSQ->sLTP_shp_Q10[ NSQ->sLTP_shp_buf_idx ] = SKP_SUB32( sLF_AR_shp_Q10, n_LF_Q10 );
- sLTP_Q16[ NSQ->sLTP_buf_idx ] = SKP_LSHIFT( LPC_exc_Q10, 6 );
- NSQ->sLTP_shp_buf_idx++;
- NSQ->sLTP_buf_idx++;
-
- /* Make dither dependent on quantized signal */
- NSQ->rand_seed += q[ i ];
- }
-
- /* Update LPC synth buffer */
- SKP_memcpy( NSQ->sLPC_Q14, &NSQ->sLPC_Q14[ length ], NSQ_LPC_BUF_LENGTH * sizeof( SKP_int32 ) );
-}
-
-SKP_INLINE void SKP_Silk_nsq_scale_states(
- SKP_Silk_nsq_state *NSQ, /* I/O NSQ state */
- const SKP_int16 x[], /* I input in Q0 */
- SKP_int32 x_sc_Q10[], /* O input scaled with 1/Gain */
- SKP_int subfr_length, /* I length of input */
- const SKP_int16 sLTP[], /* I re-whitened LTP state in Q0 */
- SKP_int32 sLTP_Q16[], /* O LTP state matching scaled input */
- SKP_int subfr, /* I subframe number */
- const SKP_int LTP_scale_Q14, /* I */
- const SKP_int32 Gains_Q16[ NB_SUBFR ], /* I */
- const SKP_int pitchL[ NB_SUBFR ] /* I */
-)
-{
- SKP_int i, lag;
- SKP_int32 inv_gain_Q16, gain_adj_Q16, inv_gain_Q32;
-
- inv_gain_Q16 = SKP_INVERSE32_varQ( SKP_max( Gains_Q16[ subfr ], 1 ), 32 );
- inv_gain_Q16 = SKP_min( inv_gain_Q16, SKP_int16_MAX );
- lag = pitchL[ subfr ];
-
- /* After rewhitening the LTP state is un-scaled, so scale with inv_gain_Q16 */
- if( NSQ->rewhite_flag ) {
- inv_gain_Q32 = SKP_LSHIFT( inv_gain_Q16, 16 );
- if( subfr == 0 ) {
- /* Do LTP downscaling */
- inv_gain_Q32 = SKP_LSHIFT( SKP_SMULWB( inv_gain_Q32, LTP_scale_Q14 ), 2 );
- }
- for( i = NSQ->sLTP_buf_idx - lag - LTP_ORDER / 2; i < NSQ->sLTP_buf_idx; i++ ) {
- SKP_assert( i < MAX_FRAME_LENGTH );
- sLTP_Q16[ i ] = SKP_SMULWB( inv_gain_Q32, sLTP[ i ] );
- }
- }
-
- /* Adjust for changing gain */
- if( inv_gain_Q16 != NSQ->prev_inv_gain_Q16 ) {
- gain_adj_Q16 = SKP_DIV32_varQ( inv_gain_Q16, NSQ->prev_inv_gain_Q16, 16 );
-
- /* Scale long-term shaping state */
- for( i = NSQ->sLTP_shp_buf_idx - subfr_length * NB_SUBFR; i < NSQ->sLTP_shp_buf_idx; i++ ) {
- NSQ->sLTP_shp_Q10[ i ] = SKP_SMULWW( gain_adj_Q16, NSQ->sLTP_shp_Q10[ i ] );
- }
-
- /* Scale long-term prediction state */
- if( NSQ->rewhite_flag == 0 ) {
- for( i = NSQ->sLTP_buf_idx - lag - LTP_ORDER / 2; i < NSQ->sLTP_buf_idx; i++ ) {
- sLTP_Q16[ i ] = SKP_SMULWW( gain_adj_Q16, sLTP_Q16[ i ] );
- }
- }
-
- NSQ->sLF_AR_shp_Q12 = SKP_SMULWW( gain_adj_Q16, NSQ->sLF_AR_shp_Q12 );
-
- /* Scale short-term prediction and shaping states */
- for( i = 0; i < NSQ_LPC_BUF_LENGTH; i++ ) {
- NSQ->sLPC_Q14[ i ] = SKP_SMULWW( gain_adj_Q16, NSQ->sLPC_Q14[ i ] );
- }
- for( i = 0; i < MAX_SHAPE_LPC_ORDER; i++ ) {
- NSQ->sAR2_Q14[ i ] = SKP_SMULWW( gain_adj_Q16, NSQ->sAR2_Q14[ i ] );
- }
- }
-
- /* Scale input */
- for( i = 0; i < subfr_length; i++ ) {
- x_sc_Q10[ i ] = SKP_RSHIFT( SKP_SMULBB( x[ i ], ( SKP_int16 )inv_gain_Q16 ), 6 );
- }
-
- /* save inv_gain */
- SKP_assert( inv_gain_Q16 != 0 );
- NSQ->prev_inv_gain_Q16 = inv_gain_Q16;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-typedef struct {
- SKP_int32 RandState[ DECISION_DELAY ];
- SKP_int32 Q_Q10[ DECISION_DELAY ];
- SKP_int32 Xq_Q10[ DECISION_DELAY ];
- SKP_int32 Pred_Q16[ DECISION_DELAY ];
- SKP_int32 Shape_Q10[ DECISION_DELAY ];
- SKP_int32 Gain_Q16[ DECISION_DELAY ];
- SKP_int32 sAR2_Q14[ MAX_SHAPE_LPC_ORDER ];
- SKP_int32 sLPC_Q14[ MAX_FRAME_LENGTH / NB_SUBFR + NSQ_LPC_BUF_LENGTH ];
- SKP_int32 LF_AR_Q12;
- SKP_int32 Seed;
- SKP_int32 SeedInit;
- SKP_int32 RD_Q10;
-} NSQ_del_dec_struct;
-
-typedef struct {
- SKP_int32 Q_Q10;
- SKP_int32 RD_Q10;
- SKP_int32 xq_Q14;
- SKP_int32 LF_AR_Q12;
- SKP_int32 sLTP_shp_Q10;
- SKP_int32 LPC_exc_Q16;
-} NSQ_sample_struct;
-
-SKP_INLINE void SKP_Silk_copy_del_dec_state(
- NSQ_del_dec_struct *DD_dst, /* I Dst del dec state */
- NSQ_del_dec_struct *DD_src, /* I Src del dec state */
- SKP_int LPC_state_idx /* I Index to LPC buffer */
-);
-
-SKP_INLINE void SKP_Silk_nsq_del_dec_scale_states(
- SKP_Silk_nsq_state *NSQ, /* I/O NSQ state */
- NSQ_del_dec_struct psDelDec[], /* I/O Delayed decision states */
- const SKP_int16 x[], /* I Input in Q0 */
- SKP_int32 x_sc_Q10[], /* O Input scaled with 1/Gain in Q10 */
- SKP_int subfr_length, /* I Length of input */
- const SKP_int16 sLTP[], /* I Re-whitened LTP state in Q0 */
- SKP_int32 sLTP_Q16[], /* O LTP state matching scaled input */
- SKP_int subfr, /* I Subframe number */
- SKP_int nStatesDelayedDecision, /* I Number of del dec states */
- SKP_int smpl_buf_idx, /* I Index to newest samples in buffers */
- const SKP_int LTP_scale_Q14, /* I LTP state scaling */
- const SKP_int32 Gains_Q16[ NB_SUBFR ], /* I */
- const SKP_int pitchL[ NB_SUBFR ] /* I Pitch lag */
-);
-
-/******************************************/
-/* Noise shape quantizer for one subframe */
-/******************************************/
-SKP_INLINE void SKP_Silk_noise_shape_quantizer_del_dec(
- SKP_Silk_nsq_state *NSQ, /* I/O NSQ state */
- NSQ_del_dec_struct psDelDec[], /* I/O Delayed decision states */
- SKP_int sigtype, /* I Signal type */
- const SKP_int32 x_Q10[], /* I */
- SKP_int8 q[], /* O */
- SKP_int16 xq[], /* O */
- SKP_int32 sLTP_Q16[], /* I/O LTP filter state */
- const SKP_int16 a_Q12[], /* I Short term prediction coefs */
- const SKP_int16 b_Q14[], /* I Long term prediction coefs */
- const SKP_int16 AR_shp_Q13[], /* I Noise shaping coefs */
- SKP_int lag, /* I Pitch lag */
- SKP_int32 HarmShapeFIRPacked_Q14, /* I */
- SKP_int Tilt_Q14, /* I Spectral tilt */
- SKP_int32 LF_shp_Q14, /* I */
- SKP_int32 Gain_Q16, /* I */
- SKP_int Lambda_Q10, /* I */
- SKP_int offset_Q10, /* I */
- SKP_int length, /* I Input length */
- SKP_int subfr, /* I Subframe number */
- SKP_int shapingLPCOrder, /* I Shaping LPC filter order */
- SKP_int predictLPCOrder, /* I Prediction filter order */
- SKP_int warping_Q16, /* I */
- SKP_int nStatesDelayedDecision, /* I Number of states in decision tree */
- SKP_int *smpl_buf_idx, /* I Index to newest samples in buffers */
- SKP_int decisionDelay /* I */
-);
-
-void SKP_Silk_NSQ_del_dec(
- SKP_Silk_encoder_state *psEncC, /* I/O Encoder State */
- SKP_Silk_encoder_control *psEncCtrlC, /* I Encoder Control */
- SKP_Silk_nsq_state *NSQ, /* I/O NSQ state */
- const SKP_int16 x[], /* I Prefiltered input signal */
- SKP_int8 q[], /* O Quantized pulse signal */
- const SKP_int LSFInterpFactor_Q2, /* I LSF interpolation factor in Q2 */
- const SKP_int16 PredCoef_Q12[ 2 * MAX_LPC_ORDER ], /* I Prediction coefs */
- const SKP_int16 LTPCoef_Q14[ LTP_ORDER * NB_SUBFR ], /* I LT prediction coefs */
- const SKP_int16 AR2_Q13[ NB_SUBFR * MAX_SHAPE_LPC_ORDER ], /* I */
- const SKP_int HarmShapeGain_Q14[ NB_SUBFR ], /* I */
- const SKP_int Tilt_Q14[ NB_SUBFR ], /* I Spectral tilt */
- const SKP_int32 LF_shp_Q14[ NB_SUBFR ], /* I */
- const SKP_int32 Gains_Q16[ NB_SUBFR ], /* I */
- const SKP_int Lambda_Q10, /* I */
- const SKP_int LTP_scale_Q14 /* I LTP state scaling */
-)
-{
- SKP_int i, k, lag, start_idx, LSF_interpolation_flag, Winner_ind, subfr;
- SKP_int last_smple_idx, smpl_buf_idx, decisionDelay, subfr_length;
- const SKP_int16 *A_Q12, *B_Q14, *AR_shp_Q13;
- SKP_int16 *pxq;
- SKP_int32 sLTP_Q16[ 2 * MAX_FRAME_LENGTH ];
- SKP_int16 sLTP[ 2 * MAX_FRAME_LENGTH ];
- SKP_int32 HarmShapeFIRPacked_Q14;
- SKP_int offset_Q10;
- SKP_int32 FiltState[ MAX_LPC_ORDER ], RDmin_Q10;
- SKP_int32 x_sc_Q10[ MAX_FRAME_LENGTH / NB_SUBFR ];
- NSQ_del_dec_struct psDelDec[ MAX_DEL_DEC_STATES ];
- NSQ_del_dec_struct *psDD;
-
- subfr_length = psEncC->frame_length / NB_SUBFR;
-
- /* Set unvoiced lag to the previous one, overwrite later for voiced */
- lag = NSQ->lagPrev;
-
- SKP_assert( NSQ->prev_inv_gain_Q16 != 0 );
-
- /* Initialize delayed decision states */
- SKP_memset( psDelDec, 0, psEncC->nStatesDelayedDecision * sizeof( NSQ_del_dec_struct ) );
- for( k = 0; k < psEncC->nStatesDelayedDecision; k++ ) {
- psDD = &psDelDec[ k ];
- psDD->Seed = ( k + psEncCtrlC->Seed ) & 3;
- psDD->SeedInit = psDD->Seed;
- psDD->RD_Q10 = 0;
- psDD->LF_AR_Q12 = NSQ->sLF_AR_shp_Q12;
- psDD->Shape_Q10[ 0 ] = NSQ->sLTP_shp_Q10[ psEncC->frame_length - 1 ];
- SKP_memcpy( psDD->sLPC_Q14, NSQ->sLPC_Q14, NSQ_LPC_BUF_LENGTH * sizeof( SKP_int32 ) );
- SKP_memcpy( psDD->sAR2_Q14, NSQ->sAR2_Q14, sizeof( NSQ->sAR2_Q14 ) );
- }
-
- offset_Q10 = SKP_Silk_Quantization_Offsets_Q10[ psEncCtrlC->sigtype ][ psEncCtrlC->QuantOffsetType ];
- smpl_buf_idx = 0; /* index of oldest samples */
-
- decisionDelay = SKP_min_int( DECISION_DELAY, subfr_length );
-
- /* For voiced frames limit the decision delay to lower than the pitch lag */
- if( psEncCtrlC->sigtype == SIG_TYPE_VOICED ) {
- for( k = 0; k < NB_SUBFR; k++ ) {
- decisionDelay = SKP_min_int( decisionDelay, psEncCtrlC->pitchL[ k ] - LTP_ORDER / 2 - 1 );
- }
- } else {
- if( lag > 0 ) {
- decisionDelay = SKP_min_int( decisionDelay, lag - LTP_ORDER / 2 - 1 );
- }
- }
-
- if( LSFInterpFactor_Q2 == ( 1 << 2 ) ) {
- LSF_interpolation_flag = 0;
- } else {
- LSF_interpolation_flag = 1;
- }
-
- /* Setup pointers to start of sub frame */
- pxq = &NSQ->xq[ psEncC->frame_length ];
- NSQ->sLTP_shp_buf_idx = psEncC->frame_length;
- NSQ->sLTP_buf_idx = psEncC->frame_length;
- subfr = 0;
- for( k = 0; k < NB_SUBFR; k++ ) {
- A_Q12 = &PredCoef_Q12[ ( ( k >> 1 ) | ( 1 - LSF_interpolation_flag ) ) * MAX_LPC_ORDER ];
- B_Q14 = <PCoef_Q14[ k * LTP_ORDER ];
- AR_shp_Q13 = &AR2_Q13[ k * MAX_SHAPE_LPC_ORDER ];
-
- /* Noise shape parameters */
- SKP_assert( HarmShapeGain_Q14[ k ] >= 0 );
- HarmShapeFIRPacked_Q14 = SKP_RSHIFT( HarmShapeGain_Q14[ k ], 2 );
- HarmShapeFIRPacked_Q14 |= SKP_LSHIFT( ( SKP_int32 )SKP_RSHIFT( HarmShapeGain_Q14[ k ], 1 ), 16 );
-
- NSQ->rewhite_flag = 0;
- if( psEncCtrlC->sigtype == SIG_TYPE_VOICED ) {
- /* Voiced */
- lag = psEncCtrlC->pitchL[ k ];
-
- /* Re-whitening */
- if( ( k & ( 3 - SKP_LSHIFT( LSF_interpolation_flag, 1 ) ) ) == 0 ) {
- if( k == 2 ) {
- /* RESET DELAYED DECISIONS */
- /* Find winner */
- RDmin_Q10 = psDelDec[ 0 ].RD_Q10;
- Winner_ind = 0;
- for( i = 1; i < psEncC->nStatesDelayedDecision; i++ ) {
- if( psDelDec[ i ].RD_Q10 < RDmin_Q10 ) {
- RDmin_Q10 = psDelDec[ i ].RD_Q10;
- Winner_ind = i;
- }
- }
- for( i = 0; i < psEncC->nStatesDelayedDecision; i++ ) {
- if( i != Winner_ind ) {
- psDelDec[ i ].RD_Q10 += ( SKP_int32_MAX >> 4 );
- SKP_assert( psDelDec[ i ].RD_Q10 >= 0 );
- }
- }
-
- /* Copy final part of signals from winner state to output and long-term filter states */
- psDD = &psDelDec[ Winner_ind ];
- last_smple_idx = smpl_buf_idx + decisionDelay;
- for( i = 0; i < decisionDelay; i++ ) {
- last_smple_idx = ( last_smple_idx - 1 ) & DECISION_DELAY_MASK;
- q[ i - decisionDelay ] = ( SKP_int8 )SKP_RSHIFT( psDD->Q_Q10[ last_smple_idx ], 10 );
- pxq[ i - decisionDelay ] = ( SKP_int16 )SKP_SAT16( SKP_RSHIFT_ROUND(
- SKP_SMULWW( psDD->Xq_Q10[ last_smple_idx ],
- psDD->Gain_Q16[ last_smple_idx ] ), 10 ) );
- NSQ->sLTP_shp_Q10[ NSQ->sLTP_shp_buf_idx - decisionDelay + i ] = psDD->Shape_Q10[ last_smple_idx ];
- }
-
- subfr = 0;
- }
-
- /* Rewhiten with new A coefs */
- start_idx = psEncC->frame_length - lag - psEncC->predictLPCOrder - LTP_ORDER / 2;
- SKP_assert( start_idx >= 0 );
- SKP_assert( start_idx <= psEncC->frame_length - psEncC->predictLPCOrder );
-
- SKP_memset( FiltState, 0, psEncC->predictLPCOrder * sizeof( SKP_int32 ) );
- SKP_Silk_MA_Prediction( &NSQ->xq[ start_idx + k * psEncC->subfr_length ],
- A_Q12, FiltState, sLTP + start_idx, psEncC->frame_length - start_idx, psEncC->predictLPCOrder );
-
- NSQ->sLTP_buf_idx = psEncC->frame_length;
- NSQ->rewhite_flag = 1;
- }
- }
-
- SKP_Silk_nsq_del_dec_scale_states( NSQ, psDelDec, x, x_sc_Q10,
- subfr_length, sLTP, sLTP_Q16, k, psEncC->nStatesDelayedDecision, smpl_buf_idx,
- LTP_scale_Q14, Gains_Q16, psEncCtrlC->pitchL );
-
- SKP_Silk_noise_shape_quantizer_del_dec( NSQ, psDelDec, psEncCtrlC->sigtype, x_sc_Q10, q, pxq, sLTP_Q16,
- A_Q12, B_Q14, AR_shp_Q13, lag, HarmShapeFIRPacked_Q14, Tilt_Q14[ k ], LF_shp_Q14[ k ], Gains_Q16[ k ],
- Lambda_Q10, offset_Q10, psEncC->subfr_length, subfr++, psEncC->shapingLPCOrder, psEncC->predictLPCOrder,
- psEncC->warping_Q16, psEncC->nStatesDelayedDecision, &smpl_buf_idx, decisionDelay );
-
- x += psEncC->subfr_length;
- q += psEncC->subfr_length;
- pxq += psEncC->subfr_length;
- }
-
- /* Find winner */
- RDmin_Q10 = psDelDec[ 0 ].RD_Q10;
- Winner_ind = 0;
- for( k = 1; k < psEncC->nStatesDelayedDecision; k++ ) {
- if( psDelDec[ k ].RD_Q10 < RDmin_Q10 ) {
- RDmin_Q10 = psDelDec[ k ].RD_Q10;
- Winner_ind = k;
- }
- }
-
- /* Copy final part of signals from winner state to output and long-term filter states */
- psDD = &psDelDec[ Winner_ind ];
- psEncCtrlC->Seed = psDD->SeedInit;
- last_smple_idx = smpl_buf_idx + decisionDelay;
- for( i = 0; i < decisionDelay; i++ ) {
- last_smple_idx = ( last_smple_idx - 1 ) & DECISION_DELAY_MASK;
- q[ i - decisionDelay ] = ( SKP_int8 )SKP_RSHIFT( psDD->Q_Q10[ last_smple_idx ], 10 );
- pxq[ i - decisionDelay ] = ( SKP_int16 )SKP_SAT16( SKP_RSHIFT_ROUND(
- SKP_SMULWW( psDD->Xq_Q10[ last_smple_idx ], psDD->Gain_Q16[ last_smple_idx ] ), 10 ) );
- NSQ->sLTP_shp_Q10[ NSQ->sLTP_shp_buf_idx - decisionDelay + i ] = psDD->Shape_Q10[ last_smple_idx ];
- sLTP_Q16[ NSQ->sLTP_buf_idx - decisionDelay + i ] = psDD->Pred_Q16[ last_smple_idx ];
- }
- SKP_memcpy( NSQ->sLPC_Q14, &psDD->sLPC_Q14[ psEncC->subfr_length ], NSQ_LPC_BUF_LENGTH * sizeof( SKP_int32 ) );
- SKP_memcpy( NSQ->sAR2_Q14, psDD->sAR2_Q14, sizeof( psDD->sAR2_Q14 ) );
-
- /* Update states */
- NSQ->sLF_AR_shp_Q12 = psDD->LF_AR_Q12;
- NSQ->lagPrev = psEncCtrlC->pitchL[ NB_SUBFR - 1 ];
-
- /* Save quantized speech and noise shaping signals */
- SKP_memcpy( NSQ->xq, &NSQ->xq[ psEncC->frame_length ], psEncC->frame_length * sizeof( SKP_int16 ) );
- SKP_memcpy( NSQ->sLTP_shp_Q10, &NSQ->sLTP_shp_Q10[ psEncC->frame_length ], psEncC->frame_length * sizeof( SKP_int32 ) );
-
-#ifdef USE_UNQUANTIZED_LSFS
- DEBUG_STORE_DATA( xq_unq_lsfs.pcm, NSQ->xq, psEncC->frame_length * sizeof( SKP_int16 ) );
-#endif
-
-}
-
-/******************************************/
-/* Noise shape quantizer for one subframe */
-/******************************************/
-SKP_INLINE void SKP_Silk_noise_shape_quantizer_del_dec(
- SKP_Silk_nsq_state *NSQ, /* I/O NSQ state */
- NSQ_del_dec_struct psDelDec[], /* I/O Delayed decision states */
- SKP_int sigtype, /* I Signal type */
- const SKP_int32 x_Q10[], /* I */
- SKP_int8 q[], /* O */
- SKP_int16 xq[], /* O */
- SKP_int32 sLTP_Q16[], /* I/O LTP filter state */
- const SKP_int16 a_Q12[], /* I Short term prediction coefs */
- const SKP_int16 b_Q14[], /* I Long term prediction coefs */
- const SKP_int16 AR_shp_Q13[], /* I Noise shaping coefs */
- SKP_int lag, /* I Pitch lag */
- SKP_int32 HarmShapeFIRPacked_Q14, /* I */
- SKP_int Tilt_Q14, /* I Spectral tilt */
- SKP_int32 LF_shp_Q14, /* I */
- SKP_int32 Gain_Q16, /* I */
- SKP_int Lambda_Q10, /* I */
- SKP_int offset_Q10, /* I */
- SKP_int length, /* I Input length */
- SKP_int subfr, /* I Subframe number */
- SKP_int shapingLPCOrder, /* I Shaping LPC filter order */
- SKP_int predictLPCOrder, /* I Prediction filter order */
- SKP_int warping_Q16, /* I */
- SKP_int nStatesDelayedDecision, /* I Number of states in decision tree */
- SKP_int *smpl_buf_idx, /* I Index to newest samples in buffers */
- SKP_int decisionDelay /* I */
-)
-{
- SKP_int i, j, k, Winner_ind, RDmin_ind, RDmax_ind, last_smple_idx;
- SKP_int32 Winner_rand_state;
- SKP_int32 LTP_pred_Q14, LPC_pred_Q10, n_AR_Q10, n_LTP_Q14;
- SKP_int32 n_LF_Q10, r_Q10, rr_Q20, rd1_Q10, rd2_Q10, RDmin_Q10, RDmax_Q10;
- SKP_int32 q1_Q10, q2_Q10, dither, exc_Q10, LPC_exc_Q10, xq_Q10;
- SKP_int32 tmp1, tmp2, sLF_AR_shp_Q10;
- SKP_int32 *pred_lag_ptr, *shp_lag_ptr, *psLPC_Q14;
- NSQ_sample_struct psSampleState[ MAX_DEL_DEC_STATES ][ 2 ];
- NSQ_del_dec_struct *psDD;
- NSQ_sample_struct *psSS;
-
- shp_lag_ptr = &NSQ->sLTP_shp_Q10[ NSQ->sLTP_shp_buf_idx - lag + HARM_SHAPE_FIR_TAPS / 2 ];
- pred_lag_ptr = &sLTP_Q16[ NSQ->sLTP_buf_idx - lag + LTP_ORDER / 2 ];
-
- for( i = 0; i < length; i++ ) {
- /* Perform common calculations used in all states */
-
- /* Long-term prediction */
- if( sigtype == SIG_TYPE_VOICED ) {
- /* Unrolled loop */
- LTP_pred_Q14 = SKP_SMULWB( pred_lag_ptr[ 0 ], b_Q14[ 0 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -1 ], b_Q14[ 1 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -2 ], b_Q14[ 2 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -3 ], b_Q14[ 3 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -4 ], b_Q14[ 4 ] );
- pred_lag_ptr++;
- } else {
- LTP_pred_Q14 = 0;
- }
-
- /* Long-term shaping */
- if( lag > 0 ) {
- /* Symmetric, packed FIR coefficients */
- n_LTP_Q14 = SKP_SMULWB( SKP_ADD32( shp_lag_ptr[ 0 ], shp_lag_ptr[ -2 ] ), HarmShapeFIRPacked_Q14 );
- n_LTP_Q14 = SKP_SMLAWT( n_LTP_Q14, shp_lag_ptr[ -1 ], HarmShapeFIRPacked_Q14 );
- n_LTP_Q14 = SKP_LSHIFT( n_LTP_Q14, 6 );
- shp_lag_ptr++;
- } else {
- n_LTP_Q14 = 0;
- }
-
- for( k = 0; k < nStatesDelayedDecision; k++ ) {
- /* Delayed decision state */
- psDD = &psDelDec[ k ];
-
- /* Sample state */
- psSS = psSampleState[ k ];
-
- /* Generate dither */
- psDD->Seed = SKP_RAND( psDD->Seed );
-
- /* dither = rand_seed < 0 ? 0xFFFFFFFF : 0; */
- dither = SKP_RSHIFT( psDD->Seed, 31 );
-
- /* Pointer used in short term prediction and shaping */
- psLPC_Q14 = &psDD->sLPC_Q14[ NSQ_LPC_BUF_LENGTH - 1 + i ];
- /* Short-term prediction */
- SKP_assert( predictLPCOrder >= 10 ); /* check that unrolling works */
- SKP_assert( ( predictLPCOrder & 1 ) == 0 ); /* check that order is even */
- SKP_assert( ( ( ( int )( ( char* )( a_Q12 ) - ( ( char* ) 0 ) ) ) & 3 ) == 0 ); /* check that array starts at 4-byte aligned address */
- /* Partially unrolled */
- LPC_pred_Q10 = SKP_SMULWB( psLPC_Q14[ 0 ], a_Q12[ 0 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -1 ], a_Q12[ 1 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -2 ], a_Q12[ 2 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -3 ], a_Q12[ 3 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -4 ], a_Q12[ 4 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -5 ], a_Q12[ 5 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -6 ], a_Q12[ 6 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -7 ], a_Q12[ 7 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -8 ], a_Q12[ 8 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -9 ], a_Q12[ 9 ] );
- for( j = 10; j < predictLPCOrder; j ++ ) {
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psLPC_Q14[ -j ], a_Q12[ j ] );
- }
-
- /* Noise shape feedback */
- SKP_assert( ( shapingLPCOrder & 1 ) == 0 ); /* check that order is even */
- /* Output of lowpass section */
- tmp2 = SKP_SMLAWB( psLPC_Q14[ 0 ], psDD->sAR2_Q14[ 0 ], warping_Q16 );
- /* Output of allpass section */
- tmp1 = SKP_SMLAWB( psDD->sAR2_Q14[ 0 ], psDD->sAR2_Q14[ 1 ] - tmp2, warping_Q16 );
- psDD->sAR2_Q14[ 0 ] = tmp2;
- n_AR_Q10 = SKP_SMULWB( tmp2, AR_shp_Q13[ 0 ] );
- /* Loop over allpass sections */
- for( j = 2; j < shapingLPCOrder; j += 2 ) {
- /* Output of allpass section */
- tmp2 = SKP_SMLAWB( psDD->sAR2_Q14[ j - 1 ], psDD->sAR2_Q14[ j + 0 ] - tmp1, warping_Q16 );
- psDD->sAR2_Q14[ j - 1 ] = tmp1;
- n_AR_Q10 = SKP_SMLAWB( n_AR_Q10, tmp1, AR_shp_Q13[ j - 1 ] );
- /* Output of allpass section */
- tmp1 = SKP_SMLAWB( psDD->sAR2_Q14[ j + 0 ], psDD->sAR2_Q14[ j + 1 ] - tmp2, warping_Q16 );
- psDD->sAR2_Q14[ j + 0 ] = tmp2;
- n_AR_Q10 = SKP_SMLAWB( n_AR_Q10, tmp2, AR_shp_Q13[ j ] );
- }
- psDD->sAR2_Q14[ shapingLPCOrder - 1 ] = tmp1;
- n_AR_Q10 = SKP_SMLAWB( n_AR_Q10, tmp1, AR_shp_Q13[ shapingLPCOrder - 1 ] );
-
- n_AR_Q10 = SKP_RSHIFT( n_AR_Q10, 1 ); /* Q11 -> Q10 */
- n_AR_Q10 = SKP_SMLAWB( n_AR_Q10, psDD->LF_AR_Q12, Tilt_Q14 );
-
- n_LF_Q10 = SKP_LSHIFT( SKP_SMULWB( psDD->Shape_Q10[ *smpl_buf_idx ], LF_shp_Q14 ), 2 );
- n_LF_Q10 = SKP_SMLAWT( n_LF_Q10, psDD->LF_AR_Q12, LF_shp_Q14 );
-
- /* Input minus prediction plus noise feedback */
- /* r = x[ i ] - LTP_pred - LPC_pred + n_AR + n_Tilt + n_LF + n_LTP */
- tmp1 = SKP_SUB32( LTP_pred_Q14, n_LTP_Q14 ); /* Add Q14 stuff */
- tmp1 = SKP_RSHIFT( tmp1, 4 ); /* convert to Q10 */
- tmp1 = SKP_ADD32( tmp1, LPC_pred_Q10 ); /* add Q10 stuff */
- tmp1 = SKP_SUB32( tmp1, n_AR_Q10 ); /* subtract Q10 stuff */
- tmp1 = SKP_SUB32( tmp1, n_LF_Q10 ); /* subtract Q10 stuff */
- r_Q10 = SKP_SUB32( x_Q10[ i ], tmp1 ); /* residual error Q10 */
-
- /* Flip sign depending on dither */
- r_Q10 = ( r_Q10 ^ dither ) - dither;
- r_Q10 = SKP_SUB32( r_Q10, offset_Q10 );
- r_Q10 = SKP_LIMIT_32( r_Q10, -64 << 10, 64 << 10 );
-
- /* Find two quantization level candidates and measure their rate-distortion */
- if( r_Q10 < -1536 ) {
- q1_Q10 = SKP_LSHIFT( SKP_RSHIFT_ROUND( r_Q10, 10 ), 10 );
- r_Q10 = SKP_SUB32( r_Q10, q1_Q10 );
- rd1_Q10 = SKP_RSHIFT( SKP_SMLABB( SKP_MUL( -SKP_ADD32( q1_Q10, offset_Q10 ), Lambda_Q10 ), r_Q10, r_Q10 ), 10 );
- rd2_Q10 = SKP_ADD32( rd1_Q10, 1024 );
- rd2_Q10 = SKP_SUB32( rd2_Q10, SKP_ADD_LSHIFT32( Lambda_Q10, r_Q10, 1 ) );
- q2_Q10 = SKP_ADD32( q1_Q10, 1024 );
- } else if( r_Q10 > 512 ) {
- q1_Q10 = SKP_LSHIFT( SKP_RSHIFT_ROUND( r_Q10, 10 ), 10 );
- r_Q10 = SKP_SUB32( r_Q10, q1_Q10 );
- rd1_Q10 = SKP_RSHIFT( SKP_SMLABB( SKP_MUL( SKP_ADD32( q1_Q10, offset_Q10 ), Lambda_Q10 ), r_Q10, r_Q10 ), 10 );
- rd2_Q10 = SKP_ADD32( rd1_Q10, 1024 );
- rd2_Q10 = SKP_SUB32( rd2_Q10, SKP_SUB_LSHIFT32( Lambda_Q10, r_Q10, 1 ) );
- q2_Q10 = SKP_SUB32( q1_Q10, 1024 );
- } else { /* r_Q10 >= -1536 && q1_Q10 <= 512 */
- rr_Q20 = SKP_SMULBB( offset_Q10, Lambda_Q10 );
- rd2_Q10 = SKP_RSHIFT( SKP_SMLABB( rr_Q20, r_Q10, r_Q10 ), 10 );
- rd1_Q10 = SKP_ADD32( rd2_Q10, 1024 );
- rd1_Q10 = SKP_ADD32( rd1_Q10, SKP_SUB_RSHIFT32( SKP_ADD_LSHIFT32( Lambda_Q10, r_Q10, 1 ), rr_Q20, 9 ) );
- q1_Q10 = -1024;
- q2_Q10 = 0;
- }
-
- if( rd1_Q10 < rd2_Q10 ) {
- psSS[ 0 ].RD_Q10 = SKP_ADD32( psDD->RD_Q10, rd1_Q10 );
- psSS[ 1 ].RD_Q10 = SKP_ADD32( psDD->RD_Q10, rd2_Q10 );
- psSS[ 0 ].Q_Q10 = q1_Q10;
- psSS[ 1 ].Q_Q10 = q2_Q10;
- } else {
- psSS[ 0 ].RD_Q10 = SKP_ADD32( psDD->RD_Q10, rd2_Q10 );
- psSS[ 1 ].RD_Q10 = SKP_ADD32( psDD->RD_Q10, rd1_Q10 );
- psSS[ 0 ].Q_Q10 = q2_Q10;
- psSS[ 1 ].Q_Q10 = q1_Q10;
- }
-
- /* Update states for best quantization */
-
- /* Quantized excitation */
- exc_Q10 = SKP_ADD32( offset_Q10, psSS[ 0 ].Q_Q10 );
- exc_Q10 = ( exc_Q10 ^ dither ) - dither;
-
- /* Add predictions */
- LPC_exc_Q10 = exc_Q10 + SKP_RSHIFT_ROUND( LTP_pred_Q14, 4 );
- xq_Q10 = SKP_ADD32( LPC_exc_Q10, LPC_pred_Q10 );
-
- /* Update states */
- sLF_AR_shp_Q10 = SKP_SUB32( xq_Q10, n_AR_Q10 );
- psSS[ 0 ].sLTP_shp_Q10 = SKP_SUB32( sLF_AR_shp_Q10, n_LF_Q10 );
- psSS[ 0 ].LF_AR_Q12 = SKP_LSHIFT( sLF_AR_shp_Q10, 2 );
- psSS[ 0 ].xq_Q14 = SKP_LSHIFT( xq_Q10, 4 );
- psSS[ 0 ].LPC_exc_Q16 = SKP_LSHIFT( LPC_exc_Q10, 6 );
-
- /* Update states for second best quantization */
-
- /* Quantized excitation */
- exc_Q10 = SKP_ADD32( offset_Q10, psSS[ 1 ].Q_Q10 );
- exc_Q10 = ( exc_Q10 ^ dither ) - dither;
-
- /* Add predictions */
- LPC_exc_Q10 = exc_Q10 + SKP_RSHIFT_ROUND( LTP_pred_Q14, 4 );
- xq_Q10 = SKP_ADD32( LPC_exc_Q10, LPC_pred_Q10 );
-
- /* Update states */
- sLF_AR_shp_Q10 = SKP_SUB32( xq_Q10, n_AR_Q10 );
- psSS[ 1 ].sLTP_shp_Q10 = SKP_SUB32( sLF_AR_shp_Q10, n_LF_Q10 );
- psSS[ 1 ].LF_AR_Q12 = SKP_LSHIFT( sLF_AR_shp_Q10, 2 );
- psSS[ 1 ].xq_Q14 = SKP_LSHIFT( xq_Q10, 4 );
- psSS[ 1 ].LPC_exc_Q16 = SKP_LSHIFT( LPC_exc_Q10, 6 );
- }
-
- *smpl_buf_idx = ( *smpl_buf_idx - 1 ) & DECISION_DELAY_MASK; /* Index to newest samples */
- last_smple_idx = ( *smpl_buf_idx + decisionDelay ) & DECISION_DELAY_MASK; /* Index to decisionDelay old samples */
-
- /* Find winner */
- RDmin_Q10 = psSampleState[ 0 ][ 0 ].RD_Q10;
- Winner_ind = 0;
- for( k = 1; k < nStatesDelayedDecision; k++ ) {
- if( psSampleState[ k ][ 0 ].RD_Q10 < RDmin_Q10 ) {
- RDmin_Q10 = psSampleState[ k ][ 0 ].RD_Q10;
- Winner_ind = k;
- }
- }
-
- /* Increase RD values of expired states */
- Winner_rand_state = psDelDec[ Winner_ind ].RandState[ last_smple_idx ];
- for( k = 0; k < nStatesDelayedDecision; k++ ) {
- if( psDelDec[ k ].RandState[ last_smple_idx ] != Winner_rand_state ) {
- psSampleState[ k ][ 0 ].RD_Q10 = SKP_ADD32( psSampleState[ k ][ 0 ].RD_Q10, ( SKP_int32_MAX >> 4 ) );
- psSampleState[ k ][ 1 ].RD_Q10 = SKP_ADD32( psSampleState[ k ][ 1 ].RD_Q10, ( SKP_int32_MAX >> 4 ) );
- SKP_assert( psSampleState[ k ][ 0 ].RD_Q10 >= 0 );
- }
- }
-
- /* Find worst in first set and best in second set */
- RDmax_Q10 = psSampleState[ 0 ][ 0 ].RD_Q10;
- RDmin_Q10 = psSampleState[ 0 ][ 1 ].RD_Q10;
- RDmax_ind = 0;
- RDmin_ind = 0;
- for( k = 1; k < nStatesDelayedDecision; k++ ) {
- /* find worst in first set */
- if( psSampleState[ k ][ 0 ].RD_Q10 > RDmax_Q10 ) {
- RDmax_Q10 = psSampleState[ k ][ 0 ].RD_Q10;
- RDmax_ind = k;
- }
- /* find best in second set */
- if( psSampleState[ k ][ 1 ].RD_Q10 < RDmin_Q10 ) {
- RDmin_Q10 = psSampleState[ k ][ 1 ].RD_Q10;
- RDmin_ind = k;
- }
- }
-
- /* Replace a state if best from second set outperforms worst in first set */
- if( RDmin_Q10 < RDmax_Q10 ) {
- SKP_Silk_copy_del_dec_state( &psDelDec[ RDmax_ind ], &psDelDec[ RDmin_ind ], i );
- SKP_memcpy( &psSampleState[ RDmax_ind ][ 0 ], &psSampleState[ RDmin_ind ][ 1 ], sizeof( NSQ_sample_struct ) );
- }
-
- /* Write samples from winner to output and long-term filter states */
- psDD = &psDelDec[ Winner_ind ];
- if( subfr > 0 || i >= decisionDelay ) {
- q[ i - decisionDelay ] = ( SKP_int8 )SKP_RSHIFT( psDD->Q_Q10[ last_smple_idx ], 10 );
- xq[ i - decisionDelay ] = ( SKP_int16 )SKP_SAT16( SKP_RSHIFT_ROUND(
- SKP_SMULWW( psDD->Xq_Q10[ last_smple_idx ], psDD->Gain_Q16[ last_smple_idx ] ), 10 ) );
- NSQ->sLTP_shp_Q10[ NSQ->sLTP_shp_buf_idx - decisionDelay ] = psDD->Shape_Q10[ last_smple_idx ];
- sLTP_Q16[ NSQ->sLTP_buf_idx - decisionDelay ] = psDD->Pred_Q16[ last_smple_idx ];
- }
- NSQ->sLTP_shp_buf_idx++;
- NSQ->sLTP_buf_idx++;
-
- /* Update states */
- for( k = 0; k < nStatesDelayedDecision; k++ ) {
- psDD = &psDelDec[ k ];
- psSS = &psSampleState[ k ][ 0 ];
- psDD->LF_AR_Q12 = psSS->LF_AR_Q12;
- psDD->sLPC_Q14[ NSQ_LPC_BUF_LENGTH + i ] = psSS->xq_Q14;
- psDD->Xq_Q10[ *smpl_buf_idx ] = SKP_RSHIFT( psSS->xq_Q14, 4 );
- psDD->Q_Q10[ *smpl_buf_idx ] = psSS->Q_Q10;
- psDD->Pred_Q16[ *smpl_buf_idx ] = psSS->LPC_exc_Q16;
- psDD->Shape_Q10[ *smpl_buf_idx ] = psSS->sLTP_shp_Q10;
- psDD->Seed = SKP_ADD_RSHIFT32( psDD->Seed, psSS->Q_Q10, 10 );
- psDD->RandState[ *smpl_buf_idx ] = psDD->Seed;
- psDD->RD_Q10 = psSS->RD_Q10;
- psDD->Gain_Q16[ *smpl_buf_idx ] = Gain_Q16;
- }
- }
- /* Update LPC states */
- for( k = 0; k < nStatesDelayedDecision; k++ ) {
- psDD = &psDelDec[ k ];
- SKP_memcpy( psDD->sLPC_Q14, &psDD->sLPC_Q14[ length ], NSQ_LPC_BUF_LENGTH * sizeof( SKP_int32 ) );
- }
-}
-
-SKP_INLINE void SKP_Silk_nsq_del_dec_scale_states(
- SKP_Silk_nsq_state *NSQ, /* I/O NSQ state */
- NSQ_del_dec_struct psDelDec[], /* I/O Delayed decision states */
- const SKP_int16 x[], /* I Input in Q0 */
- SKP_int32 x_sc_Q10[], /* O Input scaled with 1/Gain in Q10 */
- SKP_int subfr_length, /* I Length of input */
- const SKP_int16 sLTP[], /* I Re-whitened LTP state in Q0 */
- SKP_int32 sLTP_Q16[], /* O LTP state matching scaled input */
- SKP_int subfr, /* I Subframe number */
- SKP_int nStatesDelayedDecision, /* I Number of del dec states */
- SKP_int smpl_buf_idx, /* I Index to newest samples in buffers */
- const SKP_int LTP_scale_Q14, /* I LTP state scaling */
- const SKP_int32 Gains_Q16[ NB_SUBFR ], /* I */
- const SKP_int pitchL[ NB_SUBFR ] /* I Pitch lag */
-)
-{
- SKP_int i, k, lag;
- SKP_int32 inv_gain_Q16, gain_adj_Q16, inv_gain_Q32;
- NSQ_del_dec_struct *psDD;
-
- inv_gain_Q16 = SKP_INVERSE32_varQ( SKP_max( Gains_Q16[ subfr ], 1 ), 32 );
- inv_gain_Q16 = SKP_min( inv_gain_Q16, SKP_int16_MAX );
- lag = pitchL[ subfr ];
-
- /* After rewhitening the LTP state is un-scaled, so scale with inv_gain_Q16 */
- if( NSQ->rewhite_flag ) {
- inv_gain_Q32 = SKP_LSHIFT( inv_gain_Q16, 16 );
- if( subfr == 0 ) {
- /* Do LTP downscaling */
- inv_gain_Q32 = SKP_LSHIFT( SKP_SMULWB( inv_gain_Q32, LTP_scale_Q14 ), 2 );
- }
- for( i = NSQ->sLTP_buf_idx - lag - LTP_ORDER / 2; i < NSQ->sLTP_buf_idx; i++ ) {
- SKP_assert( i < MAX_FRAME_LENGTH );
- sLTP_Q16[ i ] = SKP_SMULWB( inv_gain_Q32, sLTP[ i ] );
- }
- }
-
- /* Adjust for changing gain */
- if( inv_gain_Q16 != NSQ->prev_inv_gain_Q16 ) {
- gain_adj_Q16 = SKP_DIV32_varQ( inv_gain_Q16, NSQ->prev_inv_gain_Q16, 16 );
-
- /* Scale long-term shaping state */
- for( i = NSQ->sLTP_shp_buf_idx - subfr_length * NB_SUBFR; i < NSQ->sLTP_shp_buf_idx; i++ ) {
- NSQ->sLTP_shp_Q10[ i ] = SKP_SMULWW( gain_adj_Q16, NSQ->sLTP_shp_Q10[ i ] );
- }
-
- /* Scale long-term prediction state */
- if( NSQ->rewhite_flag == 0 ) {
- for( i = NSQ->sLTP_buf_idx - lag - LTP_ORDER / 2; i < NSQ->sLTP_buf_idx; i++ ) {
- sLTP_Q16[ i ] = SKP_SMULWW( gain_adj_Q16, sLTP_Q16[ i ] );
- }
- }
-
- for( k = 0; k < nStatesDelayedDecision; k++ ) {
- psDD = &psDelDec[ k ];
-
- /* Scale scalar states */
- psDD->LF_AR_Q12 = SKP_SMULWW( gain_adj_Q16, psDD->LF_AR_Q12 );
-
- /* Scale short-term prediction and shaping states */
- for( i = 0; i < NSQ_LPC_BUF_LENGTH; i++ ) {
- psDD->sLPC_Q14[ i ] = SKP_SMULWW( gain_adj_Q16, psDD->sLPC_Q14[ i ] );
- }
- for( i = 0; i < MAX_SHAPE_LPC_ORDER; i++ ) {
- psDD->sAR2_Q14[ i ] = SKP_SMULWW( gain_adj_Q16, psDD->sAR2_Q14[ i ] );
- }
- for( i = 0; i < DECISION_DELAY; i++ ) {
- psDD->Pred_Q16[ i ] = SKP_SMULWW( gain_adj_Q16, psDD->Pred_Q16[ i ] );
- psDD->Shape_Q10[ i ] = SKP_SMULWW( gain_adj_Q16, psDD->Shape_Q10[ i ] );
- }
- }
- }
-
- /* Scale input */
- for( i = 0; i < subfr_length; i++ ) {
- x_sc_Q10[ i ] = SKP_RSHIFT( SKP_SMULBB( x[ i ], ( SKP_int16 )inv_gain_Q16 ), 6 );
- }
-
- /* save inv_gain */
- SKP_assert( inv_gain_Q16 != 0 );
- NSQ->prev_inv_gain_Q16 = inv_gain_Q16;
-}
-
-SKP_INLINE void SKP_Silk_copy_del_dec_state(
- NSQ_del_dec_struct *DD_dst, /* I Dst del dec state */
- NSQ_del_dec_struct *DD_src, /* I Src del dec state */
- SKP_int LPC_state_idx /* I Index to LPC buffer */
-)
-{
- SKP_memcpy( DD_dst->RandState, DD_src->RandState, sizeof( DD_src->RandState ) );
- SKP_memcpy( DD_dst->Q_Q10, DD_src->Q_Q10, sizeof( DD_src->Q_Q10 ) );
- SKP_memcpy( DD_dst->Pred_Q16, DD_src->Pred_Q16, sizeof( DD_src->Pred_Q16 ) );
- SKP_memcpy( DD_dst->Shape_Q10, DD_src->Shape_Q10, sizeof( DD_src->Shape_Q10 ) );
- SKP_memcpy( DD_dst->Xq_Q10, DD_src->Xq_Q10, sizeof( DD_src->Xq_Q10 ) );
- SKP_memcpy( DD_dst->sAR2_Q14, DD_src->sAR2_Q14, sizeof( DD_src->sAR2_Q14 ) );
- SKP_memcpy( &DD_dst->sLPC_Q14[ LPC_state_idx ], &DD_src->sLPC_Q14[ LPC_state_idx ], NSQ_LPC_BUF_LENGTH * sizeof( SKP_int32 ) );
- DD_dst->LF_AR_Q12 = DD_src->LF_AR_Q12;
- DD_dst->Seed = DD_src->Seed;
- DD_dst->SeedInit = DD_src->SeedInit;
- DD_dst->RD_Q10 = DD_src->RD_Q10;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-#include "SKP_Silk_PLC.h"
-
-#define NB_ATT 2
-static const SKP_int16 HARM_ATT_Q15[NB_ATT] = { 32440, 31130 }; /* 0.99, 0.95 */
-static const SKP_int16 PLC_RAND_ATTENUATE_V_Q15[NB_ATT] = { 31130, 26214 }; /* 0.95, 0.8 */
-static const SKP_int16 PLC_RAND_ATTENUATE_UV_Q15[NB_ATT] = { 32440, 29491 }; /* 0.99, 0.9 */
-
-void SKP_Silk_PLC_Reset(
- SKP_Silk_decoder_state *psDec /* I/O Decoder state */
-)
-{
- psDec->sPLC.pitchL_Q8 = SKP_RSHIFT( psDec->frame_length, 1 );
-}
-
-void SKP_Silk_PLC(
- SKP_Silk_decoder_state *psDec, /* I Decoder state */
- SKP_Silk_decoder_control *psDecCtrl, /* I Decoder control */
- SKP_int16 signal[], /* O Concealed signal */
- SKP_int length, /* I length of residual */
- SKP_int lost /* I Loss flag */
-)
-{
- /* PLC control function */
- if( psDec->fs_kHz != psDec->sPLC.fs_kHz ) {
- SKP_Silk_PLC_Reset( psDec );
- psDec->sPLC.fs_kHz = psDec->fs_kHz;
- }
-
- if( lost ) {
- /****************************/
- /* Generate Signal */
- /****************************/
- SKP_Silk_PLC_conceal( psDec, psDecCtrl, signal, length );
-
- psDec->lossCnt++;
- } else {
- /****************************/
- /* Update state */
- /****************************/
- SKP_Silk_PLC_update( psDec, psDecCtrl, signal, length );
- }
-}
-
-/**************************************************/
-/* Update state of PLC */
-/**************************************************/
-void SKP_Silk_PLC_update(
- SKP_Silk_decoder_state *psDec, /* (I/O) Decoder state */
- SKP_Silk_decoder_control *psDecCtrl, /* (I/O) Decoder control */
- SKP_int16 signal[],
- SKP_int length
-)
-{
- SKP_int32 LTP_Gain_Q14, temp_LTP_Gain_Q14;
- SKP_int i, j;
- SKP_Silk_PLC_struct *psPLC;
-
- psPLC = &psDec->sPLC;
-
- /* Update parameters used in case of packet loss */
- psDec->prev_sigtype = psDecCtrl->sigtype;
- LTP_Gain_Q14 = 0;
- if( psDecCtrl->sigtype == SIG_TYPE_VOICED ) {
- /* Find the parameters for the last subframe which contains a pitch pulse */
- for( j = 0; j * psDec->subfr_length < psDecCtrl->pitchL[ NB_SUBFR - 1 ]; j++ ) {
- temp_LTP_Gain_Q14 = 0;
- for( i = 0; i < LTP_ORDER; i++ ) {
- temp_LTP_Gain_Q14 += psDecCtrl->LTPCoef_Q14[ ( NB_SUBFR - 1 - j ) * LTP_ORDER + i ];
- }
- if( temp_LTP_Gain_Q14 > LTP_Gain_Q14 ) {
- LTP_Gain_Q14 = temp_LTP_Gain_Q14;
- SKP_memcpy( psPLC->LTPCoef_Q14,
- &psDecCtrl->LTPCoef_Q14[ SKP_SMULBB( NB_SUBFR - 1 - j, LTP_ORDER ) ],
- LTP_ORDER * sizeof( SKP_int16 ) );
-
- psPLC->pitchL_Q8 = SKP_LSHIFT( psDecCtrl->pitchL[ NB_SUBFR - 1 - j ], 8 );
- }
- }
-
-#if USE_SINGLE_TAP
- SKP_memset( psPLC->LTPCoef_Q14, 0, LTP_ORDER * sizeof( SKP_int16 ) );
- psPLC->LTPCoef_Q14[ LTP_ORDER / 2 ] = LTP_Gain_Q14;
-#endif
-
- /* Limit LT coefs */
- if( LTP_Gain_Q14 < V_PITCH_GAIN_START_MIN_Q14 ) {
- SKP_int scale_Q10;
- SKP_int32 tmp;
-
- tmp = SKP_LSHIFT( V_PITCH_GAIN_START_MIN_Q14, 10 );
- scale_Q10 = SKP_DIV32( tmp, SKP_max( LTP_Gain_Q14, 1 ) );
- for( i = 0; i < LTP_ORDER; i++ ) {
- psPLC->LTPCoef_Q14[ i ] = SKP_RSHIFT( SKP_SMULBB( psPLC->LTPCoef_Q14[ i ], scale_Q10 ), 10 );
- }
- } else if( LTP_Gain_Q14 > V_PITCH_GAIN_START_MAX_Q14 ) {
- SKP_int scale_Q14;
- SKP_int32 tmp;
-
- tmp = SKP_LSHIFT( V_PITCH_GAIN_START_MAX_Q14, 14 );
- scale_Q14 = SKP_DIV32( tmp, SKP_max( LTP_Gain_Q14, 1 ) );
- for( i = 0; i < LTP_ORDER; i++ ) {
- psPLC->LTPCoef_Q14[ i ] = SKP_RSHIFT( SKP_SMULBB( psPLC->LTPCoef_Q14[ i ], scale_Q14 ), 14 );
- }
- }
- } else {
- psPLC->pitchL_Q8 = SKP_LSHIFT( SKP_SMULBB( psDec->fs_kHz, 18 ), 8 );
- SKP_memset( psPLC->LTPCoef_Q14, 0, LTP_ORDER * sizeof( SKP_int16 ));
- }
-
- /* Save LPC coeficients */
- SKP_memcpy( psPLC->prevLPC_Q12, psDecCtrl->PredCoef_Q12[ 1 ], psDec->LPC_order * sizeof( SKP_int16 ) );
- psPLC->prevLTP_scale_Q14 = psDecCtrl->LTP_scale_Q14;
-
- /* Save Gains */
- SKP_memcpy( psPLC->prevGain_Q16, psDecCtrl->Gains_Q16, NB_SUBFR * sizeof( SKP_int32 ) );
-}
-
-void SKP_Silk_PLC_conceal(
- SKP_Silk_decoder_state *psDec, /* I/O Decoder state */
- SKP_Silk_decoder_control *psDecCtrl, /* I/O Decoder control */
- SKP_int16 signal[], /* O concealed signal */
- SKP_int length /* I length of residual */
-)
-{
- SKP_int i, j, k;
- SKP_int16 *B_Q14, exc_buf[ MAX_FRAME_LENGTH ], *exc_buf_ptr;
- SKP_int16 rand_scale_Q14;
- union {
- SKP_int16 as_int16[ MAX_LPC_ORDER ];
- SKP_int32 as_int32[ MAX_LPC_ORDER / 2 ];
- } A_Q12_tmp;
- SKP_int32 rand_seed, harm_Gain_Q15, rand_Gain_Q15;
- SKP_int lag, idx, sLTP_buf_idx, shift1, shift2;
- SKP_int32 energy1, energy2, *rand_ptr, *pred_lag_ptr;
- SKP_int32 sig_Q10[ MAX_FRAME_LENGTH ], *sig_Q10_ptr, LPC_exc_Q10, LPC_pred_Q10, LTP_pred_Q14;
- SKP_Silk_PLC_struct *psPLC;
- psPLC = &psDec->sPLC;
-
- /* Update LTP buffer */
- SKP_memcpy( psDec->sLTP_Q16, &psDec->sLTP_Q16[ psDec->frame_length ], psDec->frame_length * sizeof( SKP_int32 ) );
-
- /* LPC concealment. Apply BWE to previous LPC */
- SKP_Silk_bwexpander( psPLC->prevLPC_Q12, psDec->LPC_order, BWE_COEF_Q16 );
-
- /* Find random noise component */
- /* Scale previous excitation signal */
- exc_buf_ptr = exc_buf;
- for( k = ( NB_SUBFR >> 1 ); k < NB_SUBFR; k++ ) {
- for( i = 0; i < psDec->subfr_length; i++ ) {
- exc_buf_ptr[ i ] = ( SKP_int16 )SKP_RSHIFT(
- SKP_SMULWW( psDec->exc_Q10[ i + k * psDec->subfr_length ], psPLC->prevGain_Q16[ k ] ), 10 );
- }
- exc_buf_ptr += psDec->subfr_length;
- }
- /* Find the subframe with lowest energy of the last two and use that as random noise generator */
- SKP_Silk_sum_sqr_shift( &energy1, &shift1, exc_buf, psDec->subfr_length );
- SKP_Silk_sum_sqr_shift( &energy2, &shift2, &exc_buf[ psDec->subfr_length ], psDec->subfr_length );
-
- if( SKP_RSHIFT( energy1, shift2 ) < SKP_RSHIFT( energy2, shift1 ) ) {
- /* First sub-frame has lowest energy */
- rand_ptr = &psDec->exc_Q10[ SKP_max_int( 0, 3 * psDec->subfr_length - RAND_BUF_SIZE ) ];
- } else {
- /* Second sub-frame has lowest energy */
- rand_ptr = &psDec->exc_Q10[ SKP_max_int( 0, psDec->frame_length - RAND_BUF_SIZE ) ];
- }
-
- /* Setup Gain to random noise component */
- B_Q14 = psPLC->LTPCoef_Q14;
- rand_scale_Q14 = psPLC->randScale_Q14;
-
- /* Setup attenuation gains */
- harm_Gain_Q15 = HARM_ATT_Q15[ SKP_min_int( NB_ATT - 1, psDec->lossCnt ) ];
- if( psDec->prev_sigtype == SIG_TYPE_VOICED ) {
- rand_Gain_Q15 = PLC_RAND_ATTENUATE_V_Q15[ SKP_min_int( NB_ATT - 1, psDec->lossCnt ) ];
- } else {
- rand_Gain_Q15 = PLC_RAND_ATTENUATE_UV_Q15[ SKP_min_int( NB_ATT - 1, psDec->lossCnt ) ];
- }
-
- /* First Lost frame */
- if( psDec->lossCnt == 0 ) {
- rand_scale_Q14 = (1 << 14 );
-
- /* Reduce random noise Gain for voiced frames */
- if( psDec->prev_sigtype == SIG_TYPE_VOICED ) {
- for( i = 0; i < LTP_ORDER; i++ ) {
- rand_scale_Q14 -= B_Q14[ i ];
- }
- rand_scale_Q14 = SKP_max_16( 3277, rand_scale_Q14 ); /* 0.2 */
- rand_scale_Q14 = ( SKP_int16 )SKP_RSHIFT( SKP_SMULBB( rand_scale_Q14, psPLC->prevLTP_scale_Q14 ), 14 );
- }
-
- /* Reduce random noise for unvoiced frames with high LPC gain */
- if( psDec->prev_sigtype == SIG_TYPE_UNVOICED ) {
- SKP_int32 invGain_Q30, down_scale_Q30;
-
- SKP_Silk_LPC_inverse_pred_gain( &invGain_Q30, psPLC->prevLPC_Q12, psDec->LPC_order );
-
- down_scale_Q30 = SKP_min_32( SKP_RSHIFT( ( 1 << 30 ), LOG2_INV_LPC_GAIN_HIGH_THRES ), invGain_Q30 );
- down_scale_Q30 = SKP_max_32( SKP_RSHIFT( ( 1 << 30 ), LOG2_INV_LPC_GAIN_LOW_THRES ), down_scale_Q30 );
- down_scale_Q30 = SKP_LSHIFT( down_scale_Q30, LOG2_INV_LPC_GAIN_HIGH_THRES );
-
- rand_Gain_Q15 = SKP_RSHIFT( SKP_SMULWB( down_scale_Q30, rand_Gain_Q15 ), 14 );
- }
- }
-
- rand_seed = psPLC->rand_seed;
- lag = SKP_RSHIFT_ROUND( psPLC->pitchL_Q8, 8 );
- sLTP_buf_idx = psDec->frame_length;
-
- /***************************/
- /* LTP synthesis filtering */
- /***************************/
- sig_Q10_ptr = sig_Q10;
- for( k = 0; k < NB_SUBFR; k++ ) {
- /* Setup pointer */
- pred_lag_ptr = &psDec->sLTP_Q16[ sLTP_buf_idx - lag + LTP_ORDER / 2 ];
- for( i = 0; i < psDec->subfr_length; i++ ) {
- rand_seed = SKP_RAND( rand_seed );
- idx = SKP_RSHIFT( rand_seed, 25 ) & RAND_BUF_MASK;
-
- /* Unrolled loop */
- LTP_pred_Q14 = SKP_SMULWB( pred_lag_ptr[ 0 ], B_Q14[ 0 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -1 ], B_Q14[ 1 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -2 ], B_Q14[ 2 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -3 ], B_Q14[ 3 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -4 ], B_Q14[ 4 ] );
- pred_lag_ptr++;
-
- /* Generate LPC residual */
- LPC_exc_Q10 = SKP_LSHIFT( SKP_SMULWB( rand_ptr[ idx ], rand_scale_Q14 ), 2 ); /* Random noise part */
- LPC_exc_Q10 = SKP_ADD32( LPC_exc_Q10, SKP_RSHIFT_ROUND( LTP_pred_Q14, 4 ) ); /* Harmonic part */
-
- /* Update states */
- psDec->sLTP_Q16[ sLTP_buf_idx ] = SKP_LSHIFT( LPC_exc_Q10, 6 );
- sLTP_buf_idx++;
-
- /* Save LPC residual */
- sig_Q10_ptr[ i ] = LPC_exc_Q10;
- }
- sig_Q10_ptr += psDec->subfr_length;
- /* Gradually reduce LTP gain */
- for( j = 0; j < LTP_ORDER; j++ ) {
- B_Q14[ j ] = SKP_RSHIFT( SKP_SMULBB( harm_Gain_Q15, B_Q14[ j ] ), 15 );
- }
- /* Gradually reduce excitation gain */
- rand_scale_Q14 = SKP_RSHIFT( SKP_SMULBB( rand_scale_Q14, rand_Gain_Q15 ), 15 );
-
- /* Slowly increase pitch lag */
- psPLC->pitchL_Q8 += SKP_SMULWB( psPLC->pitchL_Q8, PITCH_DRIFT_FAC_Q16 );
- psPLC->pitchL_Q8 = SKP_min_32( psPLC->pitchL_Q8, SKP_LSHIFT( SKP_SMULBB( MAX_PITCH_LAG_MS, psDec->fs_kHz ), 8 ) );
- lag = SKP_RSHIFT_ROUND( psPLC->pitchL_Q8, 8 );
- }
-
- /***************************/
- /* LPC synthesis filtering */
- /***************************/
- sig_Q10_ptr = sig_Q10;
- /* Preload LPC coeficients to array on stack. Gives small performance gain */
- SKP_memcpy( A_Q12_tmp.as_int16, psPLC->prevLPC_Q12, psDec->LPC_order * sizeof( SKP_int16 ) );
- SKP_assert( psDec->LPC_order >= 10 ); /* check that unrolling works */
- for( k = 0; k < NB_SUBFR; k++ ) {
- for( i = 0; i < psDec->subfr_length; i++ ){
- /* partly unrolled */
- LPC_pred_Q10 = SKP_SMULWB( psDec->sLPC_Q14[ MAX_LPC_ORDER + i - 1 ], A_Q12_tmp.as_int16[ 0 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psDec->sLPC_Q14[ MAX_LPC_ORDER + i - 2 ], A_Q12_tmp.as_int16[ 1 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psDec->sLPC_Q14[ MAX_LPC_ORDER + i - 3 ], A_Q12_tmp.as_int16[ 2 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psDec->sLPC_Q14[ MAX_LPC_ORDER + i - 4 ], A_Q12_tmp.as_int16[ 3 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psDec->sLPC_Q14[ MAX_LPC_ORDER + i - 5 ], A_Q12_tmp.as_int16[ 4 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psDec->sLPC_Q14[ MAX_LPC_ORDER + i - 6 ], A_Q12_tmp.as_int16[ 5 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psDec->sLPC_Q14[ MAX_LPC_ORDER + i - 7 ], A_Q12_tmp.as_int16[ 6 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psDec->sLPC_Q14[ MAX_LPC_ORDER + i - 8 ], A_Q12_tmp.as_int16[ 7 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psDec->sLPC_Q14[ MAX_LPC_ORDER + i - 9 ], A_Q12_tmp.as_int16[ 8 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psDec->sLPC_Q14[ MAX_LPC_ORDER + i - 10 ], A_Q12_tmp.as_int16[ 9 ] );
-
- for( j = 10; j < psDec->LPC_order; j++ ) {
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, psDec->sLPC_Q14[ MAX_LPC_ORDER + i - j - 1 ], A_Q12_tmp.as_int16[ j ] );
- }
- /* Add prediction to LPC residual */
- sig_Q10_ptr[ i ] = SKP_ADD32( sig_Q10_ptr[ i ], LPC_pred_Q10 );
-
- /* Update states */
- psDec->sLPC_Q14[ MAX_LPC_ORDER + i ] = SKP_LSHIFT( sig_Q10_ptr[ i ], 4 );
- }
- sig_Q10_ptr += psDec->subfr_length;
- /* Update LPC filter state */
- SKP_memcpy( psDec->sLPC_Q14, &psDec->sLPC_Q14[ psDec->subfr_length ], MAX_LPC_ORDER * sizeof( SKP_int32 ) );
- }
-
- /* Scale with Gain */
- for( i = 0; i < psDec->frame_length; i++ ) {
- signal[ i ] = ( SKP_int16 )SKP_SAT16( SKP_RSHIFT_ROUND( SKP_SMULWW( sig_Q10[ i ], psPLC->prevGain_Q16[ NB_SUBFR - 1 ] ), 10 ) );
- }
-
- /**************************************/
- /* Update states */
- /**************************************/
- psPLC->rand_seed = rand_seed;
- psPLC->randScale_Q14 = rand_scale_Q14;
- for( i = 0; i < NB_SUBFR; i++ ) {
- psDecCtrl->pitchL[ i ] = lag;
- }
-}
-
-/* Glues concealed frames with new good recieved frames */
-void SKP_Silk_PLC_glue_frames(
- SKP_Silk_decoder_state *psDec, /* I/O decoder state */
- SKP_Silk_decoder_control *psDecCtrl, /* I/O Decoder control */
- SKP_int16 signal[], /* I/O signal */
- SKP_int length /* I length of residual */
-)
-{
- SKP_int i, energy_shift;
- SKP_int32 energy;
- SKP_Silk_PLC_struct *psPLC;
- psPLC = &psDec->sPLC;
-
- if( psDec->lossCnt ) {
- /* Calculate energy in concealed residual */
- SKP_Silk_sum_sqr_shift( &psPLC->conc_energy, &psPLC->conc_energy_shift, signal, length );
-
- psPLC->last_frame_lost = 1;
- } else {
- if( psDec->sPLC.last_frame_lost ) {
- /* Calculate residual in decoded signal if last frame was lost */
- SKP_Silk_sum_sqr_shift( &energy, &energy_shift, signal, length );
-
- /* Normalize energies */
- if( energy_shift > psPLC->conc_energy_shift ) {
- psPLC->conc_energy = SKP_RSHIFT( psPLC->conc_energy, energy_shift - psPLC->conc_energy_shift );
- } else if( energy_shift < psPLC->conc_energy_shift ) {
- energy = SKP_RSHIFT( energy, psPLC->conc_energy_shift - energy_shift );
- }
-
- /* Fade in the energy difference */
- if( energy > psPLC->conc_energy ) {
- SKP_int32 frac_Q24, LZ;
- SKP_int32 gain_Q12, slope_Q12;
-
- LZ = SKP_Silk_CLZ32( psPLC->conc_energy );
- LZ = LZ - 1;
- psPLC->conc_energy = SKP_LSHIFT( psPLC->conc_energy, LZ );
- energy = SKP_RSHIFT( energy, SKP_max_32( 24 - LZ, 0 ) );
-
- frac_Q24 = SKP_DIV32( psPLC->conc_energy, SKP_max( energy, 1 ) );
-
- gain_Q12 = SKP_Silk_SQRT_APPROX( frac_Q24 );
- slope_Q12 = SKP_DIV32_16( ( 1 << 12 ) - gain_Q12, length );
-
- for( i = 0; i < length; i++ ) {
- signal[ i ] = SKP_RSHIFT( SKP_MUL( gain_Q12, signal[ i ] ), 12 );
- gain_Q12 += slope_Q12;
- gain_Q12 = SKP_min( gain_Q12, ( 1 << 12 ) );
- }
- }
- }
- psPLC->last_frame_lost = 0;
-
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_PLC_FIX_H
-#define SKP_SILK_PLC_FIX_H
-
-#include "SKP_Silk_main.h"
-
-#define BWE_COEF_Q16 64880 /* 0.99 in Q16 */
-#define V_PITCH_GAIN_START_MIN_Q14 11469 /* 0.7 in Q14 */
-#define V_PITCH_GAIN_START_MAX_Q14 15565 /* 0.95 in Q14 */
-#define MAX_PITCH_LAG_MS 18
-#define SA_THRES_Q8 50
-#define USE_SINGLE_TAP 1
-#define RAND_BUF_SIZE 128
-#define RAND_BUF_MASK (RAND_BUF_SIZE - 1)
-#define LOG2_INV_LPC_GAIN_HIGH_THRES 3 /* 2^3 = 8 dB LPC gain */
-#define LOG2_INV_LPC_GAIN_LOW_THRES 8 /* 2^8 = 24 dB LPC gain */
-#define PITCH_DRIFT_FAC_Q16 655 /* 0.01 in Q16 */
-
-void SKP_Silk_PLC_Reset(
- SKP_Silk_decoder_state *psDec /* I/O Decoder state */
-);
-
-void SKP_Silk_PLC(
- SKP_Silk_decoder_state *psDec, /* I/O Decoder state */
- SKP_Silk_decoder_control *psDecCtrl, /* I/O Decoder control */
- SKP_int16 signal[], /* I/O signal */
- SKP_int length, /* I length of residual */
- SKP_int lost /* I Loss flag */
-);
-
-void SKP_Silk_PLC_update(
- SKP_Silk_decoder_state *psDec, /* I/O Decoder state */
- SKP_Silk_decoder_control *psDecCtrl, /* I/O Decoder control */
- SKP_int16 signal[],
- SKP_int length
-);
-
-void SKP_Silk_PLC_conceal(
- SKP_Silk_decoder_state *psDec, /* I/O Decoder state */
- SKP_Silk_decoder_control *psDecCtrl, /* I/O Decoder control */
- SKP_int16 signal[], /* O LPC residual signal */
- SKP_int length /* I length of signal */
-);
-
-void SKP_Silk_PLC_glue_frames(
- SKP_Silk_decoder_state *psDec, /* I/O decoder state */
- SKP_Silk_decoder_control *psDecCtrl, /* I/O Decoder control */
- SKP_int16 signal[], /* I/O signal */
- SKP_int length /* I length of signal */
-);
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef _SKP_SILK_SIGPROC_FIX_H_
-#define _SKP_SILK_SIGPROC_FIX_H_
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-#define SKP_Silk_MAX_ORDER_LPC 16 /* max order of the LPC analysis in schur() and k2a() */
-#define SKP_Silk_MAX_CORRELATION_LENGTH 640 /* max input length to the correlation */
-#include "SKP_Silk_typedef.h"
-#include <string.h>
-#include <stdlib.h> /* for abs() */
-#include "SKP_Silk_resampler_structs.h"
-
-# include "SKP_Silk_macros.h"
-
-
-
-/********************************************************************/
-/* SIGNAL PROCESSING FUNCTIONS */
-/********************************************************************/
-
-/*!
- * Initialize/reset the resampler state for a given pair of input/output sampling rates
-*/
-SKP_int SKP_Silk_resampler_init(
- SKP_Silk_resampler_state_struct *S, /* I/O: Resampler state */
- SKP_int32 Fs_Hz_in, /* I: Input sampling rate (Hz) */
- SKP_int32 Fs_Hz_out /* I: Output sampling rate (Hz) */
-);
-
-
-/*!
- * Clear the states of all resampling filters, without resetting sampling rate ratio
- */
-SKP_int SKP_Silk_resampler_clear(
- SKP_Silk_resampler_state_struct *S /* I/O: Resampler state */
-);
-
-/*!
- * Resampler: convert from one sampling rate to another
- */
-SKP_int SKP_Silk_resampler(
- SKP_Silk_resampler_state_struct *S, /* I/O: Resampler state */
- SKP_int16 out[], /* O: Output signal */
- const SKP_int16 in[], /* I: Input signal */
- SKP_int32 inLen /* I: Number of input samples */
-);
-
-/*!
- Upsample 2x, low quality
- */
-void SKP_Silk_resampler_up2(
- SKP_int32 *S, /* I/O: State vector [ 2 ] */
- SKP_int16 *out, /* O: Output signal [ 2 * len ] */
- const SKP_int16 *in, /* I: Input signal [ len ] */
- SKP_int32 len /* I: Number of input samples */
-);
-
-/*!
-* Downsample 2x, mediocre quality
-*/
-void SKP_Silk_resampler_down2(
- SKP_int32 *S, /* I/O: State vector [ 2 ] */
- SKP_int16 *out, /* O: Output signal [ len ] */
- const SKP_int16 *in, /* I: Input signal [ floor(len/2) ] */
- SKP_int32 inLen /* I: Number of input samples */
-);
-
-
-/*!
- * Downsample by a factor 2/3, low quality
-*/
-void SKP_Silk_resampler_down2_3(
- SKP_int32 *S, /* I/O: State vector [ 6 ] */
- SKP_int16 *out, /* O: Output signal [ floor(2*inLen/3) ] */
- const SKP_int16 *in, /* I: Input signal [ inLen ] */
- SKP_int32 inLen /* I: Number of input samples */
-);
-
-/*!
- * Downsample by a factor 3, low quality
-*/
-void SKP_Silk_resampler_down3(
- SKP_int32 *S, /* I/O: State vector [ 8 ] */
- SKP_int16 *out, /* O: Output signal [ floor(inLen/3) ] */
- const SKP_int16 *in, /* I: Input signal [ inLen ] */
- SKP_int32 inLen /* I: Number of input samples */
-);
-
-/*!
- * second order ARMA filter
- * can handle (slowly) varying coefficients
- */
-void SKP_Silk_biquad(
- const SKP_int16 *in, /* I: input signal */
- const SKP_int16 *B, /* I: MA coefficients, Q13 [3] */
- const SKP_int16 *A, /* I: AR coefficients, Q13 [2] */
- SKP_int32 *S, /* I/O: state vector [2] */
- SKP_int16 *out, /* O: output signal */
- const SKP_int32 len /* I: signal length */
-);
-/*!
- * second order ARMA filter;
- * slower than biquad() but uses more precise coefficients
- * can handle (slowly) varying coefficients
- */
-void SKP_Silk_biquad_alt(
- const SKP_int16 *in, /* I: input signal */
- const SKP_int32 *B_Q28, /* I: MA coefficients [3] */
- const SKP_int32 *A_Q28, /* I: AR coefficients [2] */
- SKP_int32 *S, /* I/O: state vector [2] */
- SKP_int16 *out, /* O: output signal */
- const SKP_int32 len /* I: signal length (must be even) */
-);
-
-/*!
- * variable order MA filter. Prediction error filter implementation. Coeficients negated and starting with coef to x[n - 1]
- */
-void SKP_Silk_MA_Prediction(
- const SKP_int16 *in, /* I: Input signal */
- const SKP_int16 *B, /* I: MA prediction coefficients, Q12 [order] */
- SKP_int32 *S, /* I/O: State vector [order] */
- SKP_int16 *out, /* O: Output signal */
- const SKP_int32 len, /* I: Signal length */
- const SKP_int32 order /* I: Filter order */
-);
-
-/*!
- * 16th order AR filter for LPC synthesis, coefficients are in Q12
- */
-void SKP_Silk_LPC_synthesis_order16(
- const SKP_int16 *in, /* I: excitation signal */
- const SKP_int16 *A_Q12, /* I: AR coefficients [16], between -8_Q0 and 8_Q0 */
- const SKP_int32 Gain_Q26, /* I: gain */
- SKP_int32 *S, /* I/O: state vector [16] */
- SKP_int16 *out, /* O: output signal */
- const SKP_int32 len /* I: signal length, must be multiple of 16 */
-);
-
-/* variable order MA prediction error filter. */
-/* Inverse filter of SKP_Silk_LPC_synthesis_filter */
-void SKP_Silk_LPC_analysis_filter(
- const SKP_int16 *in, /* I: Input signal */
- const SKP_int16 *B, /* I: MA prediction coefficients, Q12 [order] */
- SKP_int16 *S, /* I/O: State vector [order] */
- SKP_int16 *out, /* O: Output signal */
- const SKP_int32 len, /* I: Signal length */
- const SKP_int32 Order /* I: Filter order */
-);
-
-/* even order AR filter */
-void SKP_Silk_LPC_synthesis_filter(
- const SKP_int16 *in, /* I: excitation signal */
- const SKP_int16 *A_Q12, /* I: AR coefficients [Order], between -8_Q0 and 8_Q0 */
- const SKP_int32 Gain_Q26, /* I: gain */
- SKP_int32 *S, /* I/O: state vector [Order] */
- SKP_int16 *out, /* O: output signal */
- const SKP_int32 len, /* I: signal length */
- const SKP_int Order /* I: filter order, must be even */
-);
-
-/* Chirp (bandwidth expand) LP AR filter */
-void SKP_Silk_bwexpander(
- SKP_int16 *ar, /* I/O AR filter to be expanded (without leading 1) */
- const SKP_int d, /* I Length of ar */
- SKP_int32 chirp_Q16 /* I Chirp factor (typically in the range 0 to 1) */
-);
-
-/* Chirp (bandwidth expand) LP AR filter */
-void SKP_Silk_bwexpander_32(
- SKP_int32 *ar, /* I/O AR filter to be expanded (without leading 1) */
- const SKP_int d, /* I Length of ar */
- SKP_int32 chirp_Q16 /* I Chirp factor in Q16 */
-);
-
-/* Compute inverse of LPC prediction gain, and */
-/* test if LPC coefficients are stable (all poles within unit circle) */
-SKP_int SKP_Silk_LPC_inverse_pred_gain( /* O: Returns 1 if unstable, otherwise 0 */
- SKP_int32 *invGain_Q30, /* O: Inverse prediction gain, Q30 energy domain */
- const SKP_int16 *A_Q12, /* I: Prediction coefficients, Q12 [order] */
- const SKP_int order /* I: Prediction order */
-);
-
-SKP_int SKP_Silk_LPC_inverse_pred_gain_Q24( /* O: Returns 1 if unstable, otherwise 0 */
- SKP_int32 *invGain_Q30, /* O: Inverse prediction gain, Q30 energy domain */
- const SKP_int32 *A_Q24, /* I: Prediction coefficients, Q24 [order] */
- const SKP_int order /* I: Prediction order */
-);
-
-/* split signal in two decimated bands using first-order allpass filters */
-void SKP_Silk_ana_filt_bank_1(
- const SKP_int16 *in, /* I: Input signal [N] */
- SKP_int32 *S, /* I/O: State vector [2] */
- SKP_int16 *outL, /* O: Low band [N/2] */
- SKP_int16 *outH, /* O: High band [N/2] */
- SKP_int32 *scratch, /* I: Scratch memory [3*N/2] */
- const SKP_int32 N /* I: Number of input samples */
-);
-
-/********************************************************************/
-/* SCALAR FUNCTIONS */
-/********************************************************************/
-
-/* approximation of 128 * log2() (exact inverse of approx 2^() below) */
-/* convert input to a log scale */
-SKP_int32 SKP_Silk_lin2log(const SKP_int32 inLin); /* I: input in linear scale */
-
-/* Approximation of a sigmoid function */
-SKP_int SKP_Silk_sigm_Q15(SKP_int in_Q5);
-
-/* approximation of 2^() (exact inverse of approx log2() above) */
-/* convert input to a linear scale */
-SKP_int32 SKP_Silk_log2lin(const SKP_int32 inLog_Q7); /* I: input on log scale */
-
-/* Function that returns the maximum absolut value of the input vector */
-SKP_int16 SKP_Silk_int16_array_maxabs( /* O Maximum absolute value, max: 2^15-1 */
- const SKP_int16 *vec, /* I Input vector [len] */
- const SKP_int32 len /* I Length of input vector */
-);
-
-/* Compute number of bits to right shift the sum of squares of a vector */
-/* of int16s to make it fit in an int32 */
-void SKP_Silk_sum_sqr_shift(
- SKP_int32 *energy, /* O Energy of x, after shifting to the right */
- SKP_int *shift, /* O Number of bits right shift applied to energy */
- const SKP_int16 *x, /* I Input vector */
- SKP_int len /* I Length of input vector */
-);
-
-/* Calculates the reflection coefficients from the correlation sequence */
-/* Faster than schur64(), but much less accurate. */
-/* uses SMLAWB(), requiring armv5E and higher. */
-SKP_int32 SKP_Silk_schur( /* O: Returns residual energy */
- SKP_int16 *rc_Q15, /* O: reflection coefficients [order] Q15 */
- const SKP_int32 *c, /* I: correlations [order+1] */
- const SKP_int32 order /* I: prediction order */
-);;
-
-/* Calculates the reflection coefficients from the correlation sequence */
-/* Slower than schur(), but more accurate. */
-/* Uses SMULL(), available on armv4 */
-SKP_int32 SKP_Silk_schur64( /* O: returns residual energy */
- SKP_int32 rc_Q16[], /* O: Reflection coefficients [order] Q16 */
- const SKP_int32 c[], /* I: Correlations [order+1] */
- SKP_int32 order /* I: Prediction order */
-);
-
-/* Step up function, converts reflection coefficients to prediction coefficients */
-void SKP_Silk_k2a(
- SKP_int32 *A_Q24, /* O: Prediction coefficients [order] Q24 */
- const SKP_int16 *rc_Q15, /* I: Reflection coefficients [order] Q15 */
- const SKP_int32 order /* I: Prediction order */
-);
-
-/* Step up function, converts reflection coefficients to prediction coefficients */
-void SKP_Silk_k2a_Q16(
- SKP_int32 *A_Q24, /* O: Prediction coefficients [order] Q24 */
- const SKP_int32 *rc_Q16, /* I: Reflection coefficients [order] Q16 */
- const SKP_int32 order /* I: Prediction order */
-);
-
-/* Apply sine window to signal vector. */
-/* Window types: */
-/* 1 -> sine window from 0 to pi/2 */
-/* 2 -> sine window from pi/2 to pi */
-/* Every other sample is linearly interpolated, for speed. */
-/* Window length must be between 16 and 120 (incl) and a multiple of 4. */
-void SKP_Silk_apply_sine_window_new(
- SKP_int16 px_win[], /* O Pointer to windowed signal */
- const SKP_int16 px[], /* I Pointer to input signal */
- const SKP_int win_type, /* I Selects a window type */
- const SKP_int length /* I Window length, multiple of 4 */
-);
-
-/* Compute autocorrelation */
-void SKP_Silk_autocorr(
- SKP_int32 *results, /* O Result (length correlationCount) */
- SKP_int *scale, /* O Scaling of the correlation vector */
- const SKP_int16 *inputData, /* I Input data to correlate */
- const SKP_int inputDataSize, /* I Length of input */
- const SKP_int correlationCount /* I Number of correlation taps to compute */
-);
-
-/* Pitch estimator */
-#define SKP_Silk_PITCH_EST_MIN_COMPLEX 0
-#define SKP_Silk_PITCH_EST_MID_COMPLEX 1
-#define SKP_Silk_PITCH_EST_MAX_COMPLEX 2
-
-void SKP_Silk_decode_pitch(
- SKP_int lagIndex, /* I */
- SKP_int contourIndex, /* O */
- SKP_int pitch_lags[], /* O 4 pitch values */
- SKP_int Fs_kHz /* I sampling frequency (kHz) */
-);
-
-SKP_int SKP_Silk_pitch_analysis_core( /* O Voicing estimate: 0 voiced, 1 unvoiced */
- const SKP_int16 *signal, /* I Signal of length PITCH_EST_FRAME_LENGTH_MS*Fs_kHz */
- SKP_int *pitch_out, /* O 4 pitch lag values */
- SKP_int *lagIndex, /* O Lag Index */
- SKP_int *contourIndex, /* O Pitch contour Index */
- SKP_int *LTPCorr_Q15, /* I/O Normalized correlation; input: value from previous frame */
- SKP_int prevLag, /* I Last lag of previous frame; set to zero is unvoiced */
- const SKP_int32 search_thres1_Q16, /* I First stage threshold for lag candidates 0 - 1 */
- const SKP_int search_thres2_Q15, /* I Final threshold for lag candidates 0 - 1 */
- const SKP_int Fs_kHz, /* I Sample frequency (kHz) */
- const SKP_int complexity, /* I Complexity setting, 0-2, where 2 is highest */
- const SKP_int forLJC /* I 1 if this function is called from LJC code, 0 otherwise. */
-);
-
-/* parameter defining the size and accuracy of the piecewise linear */
-/* cosine approximatin table. */
-
-#define LSF_COS_TAB_SZ_FIX 128
-/* rom table with cosine values */
-extern const SKP_int SKP_Silk_LSFCosTab_FIX_Q12[ LSF_COS_TAB_SZ_FIX + 1 ];
-
-/* Compute Normalized Line Spectral Frequencies (NLSFs) from whitening filter coefficients */
-/* If not all roots are found, the a_Q16 coefficients are bandwidth expanded until convergence. */
-void SKP_Silk_A2NLSF(
- SKP_int *NLSF, /* O Normalized Line Spectral Frequencies, Q15 (0 - (2^15-1)), [d] */
- SKP_int32 *a_Q16, /* I/O Monic whitening filter coefficients in Q16 [d] */
- const SKP_int d /* I Filter order (must be even) */
-);
-
-/* compute whitening filter coefficients from normalized line spectral frequencies */
-void SKP_Silk_NLSF2A(
- SKP_int16 *a, /* o monic whitening filter coefficients in Q12, [d] */
- const SKP_int *NLSF, /* i normalized line spectral frequencies in Q15, [d] */
- const SKP_int d /* i filter order (should be even) */
-);
-
-void SKP_Silk_insertion_sort_increasing(
- SKP_int32 *a, /* I/O Unsorted / Sorted vector */
- SKP_int *index, /* O: Index vector for the sorted elements */
- const SKP_int L, /* I: Vector length */
- const SKP_int K /* I: Number of correctly sorted positions */
-);
-
-void SKP_Silk_insertion_sort_decreasing_int16(
- SKP_int16 *a, /* I/O: Unsorted / Sorted vector */
- SKP_int *index, /* O: Index vector for the sorted elements */
- const SKP_int L, /* I: Vector length */
- const SKP_int K /* I: Number of correctly sorted positions */
-);
-
-void SKP_Silk_insertion_sort_increasing_all_values(
- SKP_int *a, /* I/O: Unsorted / Sorted vector */
- const SKP_int L /* I: Vector length */
-);
-
-/* NLSF stabilizer, for a single input data vector */
-void SKP_Silk_NLSF_stabilize(
- SKP_int *NLSF_Q15, /* I/O: Unstable/stabilized normalized LSF vector in Q15 [L] */
- const SKP_int *NDeltaMin_Q15, /* I: Normalized delta min vector in Q15, NDeltaMin_Q15[L] must be >= 1 [L+1] */
- const SKP_int L /* I: Number of NLSF parameters in the input vector */
-);
-
-/* Laroia low complexity NLSF weights */
-void SKP_Silk_NLSF_VQ_weights_laroia(
- SKP_int *pNLSFW_Q6, /* O: Pointer to input vector weights [D x 1] */
- const SKP_int *pNLSF_Q15, /* I: Pointer to input vector [D x 1] */
- const SKP_int D /* I: Input vector dimension (even) */
-);
-
-/* Compute reflection coefficients from input signal */
-void SKP_Silk_burg_modified(
- SKP_int32 *res_nrg, /* O residual energy */
- SKP_int *res_nrgQ, /* O residual energy Q value */
- SKP_int32 A_Q16[], /* O prediction coefficients (length order) */
- const SKP_int16 x[], /* I input signal, length: nb_subfr * ( D + subfr_length ) */
- const SKP_int subfr_length, /* I input signal subframe length (including D preceeding samples) */
- const SKP_int nb_subfr, /* I number of subframes stacked in x */
- const SKP_int32 WhiteNoiseFrac_Q32, /* I fraction added to zero-lag autocorrelation */
- const SKP_int D /* I order */
-);
-
-/* Copy and multiply a vector by a constant */
-void SKP_Silk_scale_copy_vector16(
- SKP_int16 *data_out,
- const SKP_int16 *data_in,
- SKP_int32 gain_Q16, /* I: gain in Q16 */
- const SKP_int dataSize /* I: length */
-);
-
-/* Some for the LTP related function requires Q26 to work.*/
-void SKP_Silk_scale_vector32_Q26_lshift_18(
- SKP_int32 *data1, /* I/O: Q0/Q18 */
- SKP_int32 gain_Q26, /* I: Q26 */
- SKP_int dataSize /* I: length */
-);
-
-/********************************************************************/
-/* INLINE ARM MATH */
-/********************************************************************/
-
-/* return sum(inVec1[i]*inVec2[i]) */
-/* inVec1 and inVec2 should be increasing ordered, and starting address should be 4 byte aligned. (a factor of 4)*/
-SKP_int32 SKP_Silk_inner_prod_aligned(
- const SKP_int16* const inVec1, /* I input vector 1 */
- const SKP_int16* const inVec2, /* I input vector 2 */
- const SKP_int len /* I vector lengths */
-);
-
-SKP_int64 SKP_Silk_inner_prod16_aligned_64(
- const SKP_int16 *inVec1, /* I input vector 1 */
- const SKP_int16 *inVec2, /* I input vector 2 */
- const SKP_int len /* I vector lengths */
-);
-/********************************************************************/
-/* MACROS */
-/********************************************************************/
-
-/* Rotate a32 right by 'rot' bits. Negative rot values result in rotating
- left. Output is 32bit int.
- Note: contemporary compilers recognize the C expression below and
- compile it into a 'ror' instruction if available. No need for inline ASM! */
-SKP_INLINE SKP_int32 SKP_ROR32( SKP_int32 a32, SKP_int rot )
-{
- SKP_uint32 x = (SKP_uint32) a32;
- SKP_uint32 r = (SKP_uint32) rot;
- SKP_uint32 m = (SKP_uint32) -rot;
- if(rot <= 0)
- return (SKP_int32) ((x << m) | (x >> (32 - m)));
- else
- return (SKP_int32) ((x << (32 - r)) | (x >> r));
-}
-
-/* Allocate SKP_int16 alligned to 4-byte memory address */
-#define SKP_DWORD_ALIGN
-
-/* Useful Macros that can be adjusted to other platforms */
-#define SKP_memcpy(a, b, c) memcpy((a), (b), (c)) /* Dest, Src, ByteCount */
-#define SKP_memset(a, b, c) memset((a), (b), (c)) /* Dest, value, ByteCount */
-#define SKP_memmove(a, b, c) memmove((a), (b), (c)) /* Dest, Src, ByteCount */
-/* fixed point macros */
-
-// (a32 * b32) output have to be 32bit int
-#define SKP_MUL(a32, b32) ((a32) * (b32))
-
-// (a32 * b32) output have to be 32bit uint
-#define SKP_MUL_uint(a32, b32) SKP_MUL(a32, b32)
-
-// a32 + (b32 * c32) output have to be 32bit int
-#define SKP_MLA(a32, b32, c32) SKP_ADD32((a32),((b32) * (c32)))
-
-// a32 + ((a32 >> 16) * (b32 >> 16)) output have to be 32bit int
-#define SKP_SMLATT(a32, b32, c32) SKP_ADD32((a32),((b32) >> 16) * ((c32) >> 16))
-
-#define SKP_SMLALBB(a64, b16, c16) SKP_ADD64((a64),(SKP_int64)((SKP_int32)(b16) * (SKP_int32)(c16)))
-
-// (a32 * b32)
-#define SKP_SMULL(a32, b32) ((SKP_int64)(a32) * /*(SKP_int64)*/(b32))
-
-// multiply-accumulate macros that allow overflow in the addition (ie, no asserts in debug mode)
-#define SKP_MLA_ovflw(a32, b32, c32) SKP_MLA(a32, b32, c32)
-#ifndef SKP_SMLABB_ovflw
-# define SKP_SMLABB_ovflw(a32, b32, c32) SKP_SMLABB(a32, b32, c32)
-#endif
-#define SKP_SMLATT_ovflw(a32, b32, c32) SKP_SMLATT(a32, b32, c32)
-#define SKP_SMLAWB_ovflw(a32, b32, c32) SKP_SMLAWB(a32, b32, c32)
-#define SKP_SMLAWT_ovflw(a32, b32, c32) SKP_SMLAWT(a32, b32, c32)
-
-#define SKP_DIV32_16(a32, b16) ((SKP_int32)((a32) / (b16)))
-#define SKP_DIV32(a32, b32) ((SKP_int32)((a32) / (b32)))
-
-#define SKP_ADD32(a, b) ((a) + (b))
-#define SKP_ADD64(a, b) ((a) + (b))
-
-#define SKP_SUB32(a, b) ((a) - (b))
-
-#define SKP_SAT16(a) ((a) > SKP_int16_MAX ? SKP_int16_MAX : \
- ((a) < SKP_int16_MIN ? SKP_int16_MIN : (a)))
-#define SKP_SAT32(a) ((a) > SKP_int32_MAX ? SKP_int32_MAX : \
- ((a) < SKP_int32_MIN ? SKP_int32_MIN : (a)))
-
-#define SKP_CHECK_FIT16(a) (a)
-#define SKP_CHECK_FIT32(a) (a)
-
-#define SKP_ADD_SAT16(a, b) (SKP_int16)SKP_SAT16( SKP_ADD32( (SKP_int32)(a), (b) ) )
-
-/* Add with saturation for positive input values */
-#define SKP_ADD_POS_SAT32(a, b) ((((a)+(b)) & 0x80000000) ? SKP_int32_MAX : ((a)+(b)))
-
-#define SKP_LSHIFT32(a, shift) ((a)<<(shift)) // shift >= 0, shift < 32
-#define SKP_LSHIFT64(a, shift) ((a)<<(shift)) // shift >= 0, shift < 64
-#define SKP_LSHIFT(a, shift) SKP_LSHIFT32(a, shift) // shift >= 0, shift < 32
-
-#define SKP_RSHIFT32(a, shift) ((a)>>(shift)) // shift >= 0, shift < 32
-#define SKP_RSHIFT64(a, shift) ((a)>>(shift)) // shift >= 0, shift < 64
-#define SKP_RSHIFT(a, shift) SKP_RSHIFT32(a, shift) // shift >= 0, shift < 32
-
-/* saturates before shifting */
-#define SKP_LSHIFT_SAT32(a, shift) (SKP_LSHIFT32( SKP_LIMIT( (a), SKP_RSHIFT32( SKP_int32_MIN, (shift) ), \
- SKP_RSHIFT32( SKP_int32_MAX, (shift) ) ), (shift) ))
-
-#define SKP_LSHIFT_ovflw(a, shift) ((a)<<(shift)) // shift >= 0, allowed to overflow
-#define SKP_LSHIFT_uint(a, shift) ((a)<<(shift)) // shift >= 0
-#define SKP_RSHIFT_uint(a, shift) ((a)>>(shift)) // shift >= 0
-
-#define SKP_ADD_LSHIFT(a, b, shift) ((a) + SKP_LSHIFT((b), (shift))) // shift >= 0
-#define SKP_ADD_LSHIFT32(a, b, shift) SKP_ADD32((a), SKP_LSHIFT32((b), (shift))) // shift >= 0
-#define SKP_ADD_RSHIFT(a, b, shift) ((a) + SKP_RSHIFT((b), (shift))) // shift >= 0
-#define SKP_ADD_RSHIFT32(a, b, shift) SKP_ADD32((a), SKP_RSHIFT32((b), (shift))) // shift >= 0
-#define SKP_ADD_RSHIFT_uint(a, b, shift) ((a) + SKP_RSHIFT_uint((b), (shift))) // shift >= 0
-#define SKP_SUB_LSHIFT32(a, b, shift) SKP_SUB32((a), SKP_LSHIFT32((b), (shift))) // shift >= 0
-#define SKP_SUB_RSHIFT32(a, b, shift) SKP_SUB32((a), SKP_RSHIFT32((b), (shift))) // shift >= 0
-
-/* Requires that shift > 0 */
-#define SKP_RSHIFT_ROUND(a, shift) ((shift) == 1 ? ((a) >> 1) + ((a) & 1) : (((a) >> ((shift) - 1)) + 1) >> 1)
-#define SKP_RSHIFT_ROUND64(a, shift) ((shift) == 1 ? ((a) >> 1) + ((a) & 1) : (((a) >> ((shift) - 1)) + 1) >> 1)
-
-/* Number of rightshift required to fit the multiplication */
-#define SKP_NSHIFT_MUL_32_32(a, b) ( -(31- (32-SKP_Silk_CLZ32(SKP_abs(a)) + (32-SKP_Silk_CLZ32(SKP_abs(b))))) )
-
-#define SKP_min(a, b) (((a) < (b)) ? (a) : (b))
-#define SKP_max(a, b) (((a) > (b)) ? (a) : (b))
-
-/* Macro to convert floating-point constants to fixed-point */
-#define SKP_FIX_CONST( C, Q ) ((SKP_int32)((C) * ((SKP_int64)1 << (Q)) + 0.5))
-
-/* SKP_min() versions with typecast in the function call */
-SKP_INLINE SKP_int SKP_min_int(SKP_int a, SKP_int b)
-{
- return (((a) < (b)) ? (a) : (b));
-}
-
-SKP_INLINE SKP_int32 SKP_min_32(SKP_int32 a, SKP_int32 b)
-{
- return (((a) < (b)) ? (a) : (b));
-}
-
-/* SKP_min() versions with typecast in the function call */
-SKP_INLINE SKP_int SKP_max_int(SKP_int a, SKP_int b)
-{
- return (((a) > (b)) ? (a) : (b));
-}
-SKP_INLINE SKP_int16 SKP_max_16(SKP_int16 a, SKP_int16 b)
-{
- return (((a) > (b)) ? (a) : (b));
-}
-SKP_INLINE SKP_int32 SKP_max_32(SKP_int32 a, SKP_int32 b)
-{
- return (((a) > (b)) ? (a) : (b));
-}
-
-#define SKP_LIMIT( a, limit1, limit2) ((limit1) > (limit2) ? ((a) > (limit1) ? (limit1) : ((a) < (limit2) ? (limit2) : (a))) \
- : ((a) > (limit2) ? (limit2) : ((a) < (limit1) ? (limit1) : (a))))
-
-#define SKP_LIMIT_int SKP_LIMIT
-#define SKP_LIMIT_32 SKP_LIMIT
-
-//#define SKP_non_neg(a) ((a) & ((-(a)) >> (8 * sizeof(a) - 1))) /* doesn't seem faster than SKP_max(0, a);
-
-#define SKP_abs(a) (((a) > 0) ? (a) : -(a)) // Be careful, SKP_abs returns wrong when input equals to SKP_intXX_MIN
-#define SKP_abs_int32(a) (((a) ^ ((a) >> 31)) - ((a) >> 31))
-
-/* PSEUDO-RANDOM GENERATOR */
-/* Make sure to store the result as the seed for the next call (also in between */
-/* frames), otherwise result won't be random at all. When only using some of the */
-/* bits, take the most significant bits by right-shifting. Do not just mask off */
-/* the lowest bits. */
-#define SKP_RAND(seed) (SKP_MLA_ovflw(907633515, (seed), 196314165))
-
-// Add some multiplication functions that can be easily mapped to ARM.
-
-// SKP_SMMUL: Signed top word multiply.
-// ARMv6 2 instruction cycles.
-// ARMv3M+ 3 instruction cycles. use SMULL and ignore LSB registers.(except xM)
-//#define SKP_SMMUL(a32, b32) (SKP_int32)SKP_RSHIFT(SKP_SMLAL(SKP_SMULWB((a32), (b32)), (a32), SKP_RSHIFT_ROUND((b32), 16)), 16)
-// the following seems faster on x86
-#define SKP_SMMUL(a32, b32) (SKP_int32)SKP_RSHIFT64(SKP_SMULL((a32), (b32)), 32)
-
-#include "SKP_Silk_Inlines.h"
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/*
- * File Name: SKP_Silk_VAD.c
- * Description: Silk VAD.
- */
-
-#include <stdlib.h>
-#include "SKP_Silk_main.h"
-
-/**********************************/
-/* Initialization of the Silk VAD */
-/**********************************/
-SKP_int SKP_Silk_VAD_Init( /* O Return value, 0 if success */
- SKP_Silk_VAD_state *psSilk_VAD /* I/O Pointer to Silk VAD state */
-)
-{
- SKP_int b, ret = 0;
-
- /* reset state memory */
- SKP_memset( psSilk_VAD, 0, sizeof( SKP_Silk_VAD_state ) );
-
- /* init noise levels */
- /* Initialize array with approx pink noise levels (psd proportional to inverse of frequency) */
- for( b = 0; b < VAD_N_BANDS; b++ ) {
- psSilk_VAD->NoiseLevelBias[ b ] = SKP_max_32( SKP_DIV32_16( VAD_NOISE_LEVELS_BIAS, b + 1 ), 1 );
- }
-
- /* Initialize state */
- for( b = 0; b < VAD_N_BANDS; b++ ) {
- psSilk_VAD->NL[ b ] = SKP_MUL( 100, psSilk_VAD->NoiseLevelBias[ b ] );
- psSilk_VAD->inv_NL[ b ] = SKP_DIV32( SKP_int32_MAX, psSilk_VAD->NL[ b ] );
- }
- psSilk_VAD->counter = 15;
-
- /* init smoothed energy-to-noise ratio*/
- for( b = 0; b < VAD_N_BANDS; b++ ) {
- psSilk_VAD->NrgRatioSmth_Q8[ b ] = 100 * 256; /* 100 * 256 --> 20 dB SNR */
- }
-
- return( ret );
-}
-
-/* Weighting factors for tilt measure */
-const static SKP_int32 tiltWeights[ VAD_N_BANDS ] = { 30000, 6000, -12000, -12000 };
-
-/***************************************/
-/* Get the speech activity level in Q8 */
-/***************************************/
-SKP_int SKP_Silk_VAD_GetSA_Q8( /* O Return value, 0 if success */
- SKP_Silk_VAD_state *psSilk_VAD, /* I/O Silk VAD state */
- SKP_int *pSA_Q8, /* O Speech activity level in Q8 */
- SKP_int *pSNR_dB_Q7, /* O SNR for current frame in Q7 */
- SKP_int pQuality_Q15[ VAD_N_BANDS ], /* O Smoothed SNR for each band */
- SKP_int *pTilt_Q15, /* O current frame's frequency tilt */
- const SKP_int16 pIn[], /* I PCM input [framelength] */
- const SKP_int framelength /* I Input frame length */
-)
-{
- SKP_int SA_Q15, input_tilt;
- SKP_int32 scratch[ 3 * MAX_FRAME_LENGTH / 2 ];
- SKP_int decimated_framelength, dec_subframe_length, dec_subframe_offset, SNR_Q7, i, b, s;
- SKP_int32 sumSquared, smooth_coef_Q16;
- SKP_int16 HPstateTmp;
-
- SKP_int16 X[ VAD_N_BANDS ][ MAX_FRAME_LENGTH / 2 ];
- SKP_int32 Xnrg[ VAD_N_BANDS ];
- SKP_int32 NrgToNoiseRatio_Q8[ VAD_N_BANDS ];
- SKP_int32 speech_nrg, x_tmp;
- SKP_int ret = 0;
-
- /* Safety checks */
- SKP_assert( VAD_N_BANDS == 4 );
- SKP_assert( MAX_FRAME_LENGTH >= framelength );
- SKP_assert( framelength <= 512 );
-
- /***********************/
- /* Filter and Decimate */
- /***********************/
- /* 0-8 kHz to 0-4 kHz and 4-8 kHz */
- SKP_Silk_ana_filt_bank_1( pIn, &psSilk_VAD->AnaState[ 0 ], &X[ 0 ][ 0 ], &X[ 3 ][ 0 ], &scratch[ 0 ], framelength );
-
- /* 0-4 kHz to 0-2 kHz and 2-4 kHz */
- SKP_Silk_ana_filt_bank_1( &X[ 0 ][ 0 ], &psSilk_VAD->AnaState1[ 0 ], &X[ 0 ][ 0 ], &X[ 2 ][ 0 ], &scratch[ 0 ], SKP_RSHIFT( framelength, 1 ) );
-
- /* 0-2 kHz to 0-1 kHz and 1-2 kHz */
- SKP_Silk_ana_filt_bank_1( &X[ 0 ][ 0 ], &psSilk_VAD->AnaState2[ 0 ], &X[ 0 ][ 0 ], &X[ 1 ][ 0 ], &scratch[ 0 ], SKP_RSHIFT( framelength, 2 ) );
-
- /*********************************************/
- /* HP filter on lowest band (differentiator) */
- /*********************************************/
- decimated_framelength = SKP_RSHIFT( framelength, 3 );
- X[ 0 ][ decimated_framelength - 1 ] = SKP_RSHIFT( X[ 0 ][ decimated_framelength - 1 ], 1 );
- HPstateTmp = X[ 0 ][ decimated_framelength - 1 ];
- for( i = decimated_framelength - 1; i > 0; i-- ) {
- X[ 0 ][ i - 1 ] = SKP_RSHIFT( X[ 0 ][ i - 1 ], 1 );
- X[ 0 ][ i ] -= X[ 0 ][ i - 1 ];
- }
- X[ 0 ][ 0 ] -= psSilk_VAD->HPstate;
- psSilk_VAD->HPstate = HPstateTmp;
-
- /*************************************/
- /* Calculate the energy in each band */
- /*************************************/
- for( b = 0; b < VAD_N_BANDS; b++ ) {
- /* Find the decimated framelength in the non-uniformly divided bands */
- decimated_framelength = SKP_RSHIFT( framelength, SKP_min_int( VAD_N_BANDS - b, VAD_N_BANDS - 1 ) );
-
- /* Split length into subframe lengths */
- dec_subframe_length = SKP_RSHIFT( decimated_framelength, VAD_INTERNAL_SUBFRAMES_LOG2 );
- dec_subframe_offset = 0;
-
- /* Compute energy per sub-frame */
- /* initialize with summed energy of last subframe */
- Xnrg[ b ] = psSilk_VAD->XnrgSubfr[ b ];
- for( s = 0; s < VAD_INTERNAL_SUBFRAMES; s++ ) {
- sumSquared = 0;
- for( i = 0; i < dec_subframe_length; i++ ) {
- /* The energy will be less than dec_subframe_length * ( SKP_int16_MIN / 8 ) ^ 2. */
- /* Therefore we can accumulate with no risk of overflow (unless dec_subframe_length > 128) */
- x_tmp = SKP_RSHIFT( X[ b ][ i + dec_subframe_offset ], 3 );
- sumSquared = SKP_SMLABB( sumSquared, x_tmp, x_tmp );
-
- /* Safety check */
- SKP_assert( sumSquared >= 0 );
- }
-
- /* Add/saturate summed energy of current subframe */
- if( s < VAD_INTERNAL_SUBFRAMES - 1 ) {
- Xnrg[ b ] = SKP_ADD_POS_SAT32( Xnrg[ b ], sumSquared );
- } else {
- /* Look-ahead subframe */
- Xnrg[ b ] = SKP_ADD_POS_SAT32( Xnrg[ b ], SKP_RSHIFT( sumSquared, 1 ) );
- }
-
- dec_subframe_offset += dec_subframe_length;
- }
- psSilk_VAD->XnrgSubfr[ b ] = sumSquared;
- }
-
- /********************/
- /* Noise estimation */
- /********************/
- SKP_Silk_VAD_GetNoiseLevels( &Xnrg[ 0 ], psSilk_VAD );
-
- /***********************************************/
- /* Signal-plus-noise to noise ratio estimation */
- /***********************************************/
- sumSquared = 0;
- input_tilt = 0;
- for( b = 0; b < VAD_N_BANDS; b++ ) {
- speech_nrg = Xnrg[ b ] - psSilk_VAD->NL[ b ];
- if( speech_nrg > 0 ) {
- /* Divide, with sufficient resolution */
- if( ( Xnrg[ b ] & 0xFF800000 ) == 0 ) {
- NrgToNoiseRatio_Q8[ b ] = SKP_DIV32( SKP_LSHIFT( Xnrg[ b ], 8 ), psSilk_VAD->NL[ b ] + 1 );
- } else {
- NrgToNoiseRatio_Q8[ b ] = SKP_DIV32( Xnrg[ b ], SKP_RSHIFT( psSilk_VAD->NL[ b ], 8 ) + 1 );
- }
-
- /* Convert to log domain */
- SNR_Q7 = SKP_Silk_lin2log( NrgToNoiseRatio_Q8[ b ] ) - 8 * 128;
-
- /* Sum-of-squares */
- sumSquared = SKP_SMLABB( sumSquared, SNR_Q7, SNR_Q7 ); /* Q14 */
-
- /* Tilt measure */
- if( speech_nrg < ( 1 << 20 ) ) {
- /* Scale down SNR value for small subband speech energies */
- SNR_Q7 = SKP_SMULWB( SKP_LSHIFT( SKP_Silk_SQRT_APPROX( speech_nrg ), 6 ), SNR_Q7 );
- }
- input_tilt = SKP_SMLAWB( input_tilt, tiltWeights[ b ], SNR_Q7 );
- } else {
- NrgToNoiseRatio_Q8[ b ] = 256;
- }
- }
-
- /* Mean-of-squares */
- sumSquared = SKP_DIV32_16( sumSquared, VAD_N_BANDS ); /* Q14 */
-
- /* Root-mean-square approximation, scale to dBs, and write to output pointer */
- *pSNR_dB_Q7 = ( SKP_int16 )( 3 * SKP_Silk_SQRT_APPROX( sumSquared ) ); /* Q7 */
-
- /*********************************/
- /* Speech Probability Estimation */
- /*********************************/
- SA_Q15 = SKP_Silk_sigm_Q15( SKP_SMULWB( VAD_SNR_FACTOR_Q16, *pSNR_dB_Q7 ) - VAD_NEGATIVE_OFFSET_Q5 );
-
- /**************************/
- /* Frequency Tilt Measure */
- /**************************/
- *pTilt_Q15 = SKP_LSHIFT( SKP_Silk_sigm_Q15( input_tilt ) - 16384, 1 );
-
- /**************************************************/
- /* Scale the sigmoid output based on power levels */
- /**************************************************/
- speech_nrg = 0;
- for( b = 0; b < VAD_N_BANDS; b++ ) {
- /* Accumulate signal-without-noise energies, higher frequency bands have more weight */
- speech_nrg += ( b + 1 ) * SKP_RSHIFT( Xnrg[ b ] - psSilk_VAD->NL[ b ], 4 );
- }
-
- /* Power scaling */
- if( speech_nrg <= 0 ) {
- SA_Q15 = SKP_RSHIFT( SA_Q15, 1 );
- } else if( speech_nrg < 32768 ) {
- /* square-root */
- speech_nrg = SKP_Silk_SQRT_APPROX( SKP_LSHIFT( speech_nrg, 15 ) );
- SA_Q15 = SKP_SMULWB( 32768 + speech_nrg, SA_Q15 );
- }
-
- /* Copy the resulting speech activity in Q8 to *pSA_Q8 */
- *pSA_Q8 = SKP_min_int( SKP_RSHIFT( SA_Q15, 7 ), SKP_uint8_MAX );
-
- /***********************************/
- /* Energy Level and SNR estimation */
- /***********************************/
- /* Smoothing coefficient */
- smooth_coef_Q16 = SKP_SMULWB( VAD_SNR_SMOOTH_COEF_Q18, SKP_SMULWB( SA_Q15, SA_Q15 ) );
- for( b = 0; b < VAD_N_BANDS; b++ ) {
- /* compute smoothed energy-to-noise ratio per band */
- psSilk_VAD->NrgRatioSmth_Q8[ b ] = SKP_SMLAWB( psSilk_VAD->NrgRatioSmth_Q8[ b ],
- NrgToNoiseRatio_Q8[ b ] - psSilk_VAD->NrgRatioSmth_Q8[ b ], smooth_coef_Q16 );
-
- /* signal to noise ratio in dB per band */
- SNR_Q7 = 3 * ( SKP_Silk_lin2log( psSilk_VAD->NrgRatioSmth_Q8[b] ) - 8 * 128 );
- /* quality = sigmoid( 0.25 * ( SNR_dB - 16 ) ); */
- pQuality_Q15[ b ] = SKP_Silk_sigm_Q15( SKP_RSHIFT( SNR_Q7 - 16 * 128, 4 ) );
- }
-
- return( ret );
-}
-
-/**************************/
-/* Noise level estimation */
-/**************************/
-void SKP_Silk_VAD_GetNoiseLevels(
- const SKP_int32 pX[ VAD_N_BANDS ], /* I subband energies */
- SKP_Silk_VAD_state *psSilk_VAD /* I/O Pointer to Silk VAD state */
-)
-{
- SKP_int k;
- SKP_int32 nl, nrg, inv_nrg;
- SKP_int coef, min_coef;
-
- /* Initially faster smoothing */
- if( psSilk_VAD->counter < 1000 ) { /* 1000 = 20 sec */
- min_coef = SKP_DIV32_16( SKP_int16_MAX, SKP_RSHIFT( psSilk_VAD->counter, 4 ) + 1 );
- } else {
- min_coef = 0;
- }
-
- for( k = 0; k < VAD_N_BANDS; k++ ) {
- /* Get old noise level estimate for current band */
- nl = psSilk_VAD->NL[ k ];
- SKP_assert( nl >= 0 );
-
- /* Add bias */
- nrg = SKP_ADD_POS_SAT32( pX[ k ], psSilk_VAD->NoiseLevelBias[ k ] );
- SKP_assert( nrg > 0 );
-
- /* Invert energies */
- inv_nrg = SKP_DIV32( SKP_int32_MAX, nrg );
- SKP_assert( inv_nrg >= 0 );
-
- /* Less update when subband energy is high */
- if( nrg > SKP_LSHIFT( nl, 3 ) ) {
- coef = VAD_NOISE_LEVEL_SMOOTH_COEF_Q16 >> 3;
- } else if( nrg < nl ) {
- coef = VAD_NOISE_LEVEL_SMOOTH_COEF_Q16;
- } else {
- coef = SKP_SMULWB( SKP_SMULWW( inv_nrg, nl ), VAD_NOISE_LEVEL_SMOOTH_COEF_Q16 << 1 );
- }
-
- /* Initially faster smoothing */
- coef = SKP_max_int( coef, min_coef );
-
- /* Smooth inverse energies */
- psSilk_VAD->inv_NL[ k ] = SKP_SMLAWB( psSilk_VAD->inv_NL[ k ], inv_nrg - psSilk_VAD->inv_NL[ k ], coef );
- SKP_assert( psSilk_VAD->inv_NL[ k ] >= 0 );
-
- /* Compute noise level by inverting again */
- nl = SKP_DIV32( SKP_int32_MAX, psSilk_VAD->inv_NL[ k ] );
- SKP_assert( nl >= 0 );
-
- /* Limit noise levels (guarantee 7 bits of head room) */
- nl = SKP_min( nl, 0x00FFFFFF );
-
- /* Store as part of state */
- psSilk_VAD->NL[ k ] = nl;
- }
-
- /* Increment frame counter */
- psSilk_VAD->counter++;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-
-/* Entropy constrained MATRIX-weighted VQ, hard-coded to 5-element vectors, for a single input data vector */
-void SKP_Silk_VQ_WMat_EC_FIX(
- SKP_int *ind, /* O index of best codebook vector */
- SKP_int32 *rate_dist_Q14, /* O best weighted quantization error + mu * rate*/
- const SKP_int16 *in_Q14, /* I input vector to be quantized */
- const SKP_int32 *W_Q18, /* I weighting matrix */
- const SKP_int16 *cb_Q14, /* I codebook */
- const SKP_int16 *cl_Q6, /* I code length for each codebook vector */
- const SKP_int mu_Q8, /* I tradeoff between weighted error and rate */
- SKP_int L /* I number of vectors in codebook */
-)
-{
- SKP_int k;
- const SKP_int16 *cb_row_Q14;
- SKP_int16 diff_Q14[ 5 ];
- SKP_int32 sum1_Q14, sum2_Q16;
-
- /* Loop over codebook */
- *rate_dist_Q14 = SKP_int32_MAX;
- cb_row_Q14 = cb_Q14;
- for( k = 0; k < L; k++ ) {
- diff_Q14[ 0 ] = in_Q14[ 0 ] - cb_row_Q14[ 0 ];
- diff_Q14[ 1 ] = in_Q14[ 1 ] - cb_row_Q14[ 1 ];
- diff_Q14[ 2 ] = in_Q14[ 2 ] - cb_row_Q14[ 2 ];
- diff_Q14[ 3 ] = in_Q14[ 3 ] - cb_row_Q14[ 3 ];
- diff_Q14[ 4 ] = in_Q14[ 4 ] - cb_row_Q14[ 4 ];
-
- /* Weighted rate */
- sum1_Q14 = SKP_SMULBB( mu_Q8, cl_Q6[ k ] );
-
- SKP_assert( sum1_Q14 >= 0 );
-
- /* first row of W_Q18 */
- sum2_Q16 = SKP_SMULWB( W_Q18[ 1 ], diff_Q14[ 1 ] );
- sum2_Q16 = SKP_SMLAWB( sum2_Q16, W_Q18[ 2 ], diff_Q14[ 2 ] );
- sum2_Q16 = SKP_SMLAWB( sum2_Q16, W_Q18[ 3 ], diff_Q14[ 3 ] );
- sum2_Q16 = SKP_SMLAWB( sum2_Q16, W_Q18[ 4 ], diff_Q14[ 4 ] );
- sum2_Q16 = SKP_LSHIFT( sum2_Q16, 1 );
- sum2_Q16 = SKP_SMLAWB( sum2_Q16, W_Q18[ 0 ], diff_Q14[ 0 ] );
- sum1_Q14 = SKP_SMLAWB( sum1_Q14, sum2_Q16, diff_Q14[ 0 ] );
-
- /* second row of W_Q18 */
- sum2_Q16 = SKP_SMULWB( W_Q18[ 7 ], diff_Q14[ 2 ] );
- sum2_Q16 = SKP_SMLAWB( sum2_Q16, W_Q18[ 8 ], diff_Q14[ 3 ] );
- sum2_Q16 = SKP_SMLAWB( sum2_Q16, W_Q18[ 9 ], diff_Q14[ 4 ] );
- sum2_Q16 = SKP_LSHIFT( sum2_Q16, 1 );
- sum2_Q16 = SKP_SMLAWB( sum2_Q16, W_Q18[ 6 ], diff_Q14[ 1 ] );
- sum1_Q14 = SKP_SMLAWB( sum1_Q14, sum2_Q16, diff_Q14[ 1 ] );
-
- /* third row of W_Q18 */
- sum2_Q16 = SKP_SMULWB( W_Q18[ 13 ], diff_Q14[ 3 ] );
- sum2_Q16 = SKP_SMLAWB( sum2_Q16, W_Q18[ 14 ], diff_Q14[ 4 ] );
- sum2_Q16 = SKP_LSHIFT( sum2_Q16, 1 );
- sum2_Q16 = SKP_SMLAWB( sum2_Q16, W_Q18[ 12 ], diff_Q14[ 2 ] );
- sum1_Q14 = SKP_SMLAWB( sum1_Q14, sum2_Q16, diff_Q14[ 2 ] );
-
- /* fourth row of W_Q18 */
- sum2_Q16 = SKP_SMULWB( W_Q18[ 19 ], diff_Q14[ 4 ] );
- sum2_Q16 = SKP_LSHIFT( sum2_Q16, 1 );
- sum2_Q16 = SKP_SMLAWB( sum2_Q16, W_Q18[ 18 ], diff_Q14[ 3 ] );
- sum1_Q14 = SKP_SMLAWB( sum1_Q14, sum2_Q16, diff_Q14[ 3 ] );
-
- /* last row of W_Q18 */
- sum2_Q16 = SKP_SMULWB( W_Q18[ 24 ], diff_Q14[ 4 ] );
- sum1_Q14 = SKP_SMLAWB( sum1_Q14, sum2_Q16, diff_Q14[ 4 ] );
-
- SKP_assert( sum1_Q14 >= 0 );
-
- /* find best */
- if( sum1_Q14 < *rate_dist_Q14 ) {
- *rate_dist_Q14 = sum1_Q14;
- *ind = k;
- }
-
- /* Go to next cbk vector */
- cb_row_Q14 += LTP_ORDER;
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_ana_filt_bank_1.c *
- * *
- * Split signal into two decimated bands using first-order allpass filters *
- * *
- * Copyright 2006 (c), Skype Limited *
- * Date: 060221 *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Coefficients for 2-band filter bank based on first-order allpass filters */
-// old
-static SKP_int16 A_fb1_20[ 1 ] = { 5394 << 1 };
-static SKP_int16 A_fb1_21[ 1 ] = { 20623 << 1 }; /* wrap-around to negative number is intentional */
-
-/* Split signal into two decimated bands using first-order allpass filters */
-void SKP_Silk_ana_filt_bank_1(
- const SKP_int16 *in, /* I: Input signal [N] */
- SKP_int32 *S, /* I/O: State vector [2] */
- SKP_int16 *outL, /* O: Low band [N/2] */
- SKP_int16 *outH, /* O: High band [N/2] */
- SKP_int32 *scratch, /* I: Scratch memory [3*N/2] */ // todo: remove - no longer used
- const SKP_int32 N /* I: Number of input samples */
-)
-{
- SKP_int k, N2 = SKP_RSHIFT( N, 1 );
- SKP_int32 in32, X, Y, out_1, out_2;
-
- /* Internal variables and state are in Q10 format */
- for( k = 0; k < N2; k++ ) {
- /* Convert to Q10 */
- in32 = SKP_LSHIFT( (SKP_int32)in[ 2 * k ], 10 );
-
- /* All-pass section for even input sample */
- Y = SKP_SUB32( in32, S[ 0 ] );
- X = SKP_SMLAWB( Y, Y, A_fb1_21[ 0 ] );
- out_1 = SKP_ADD32( S[ 0 ], X );
- S[ 0 ] = SKP_ADD32( in32, X );
-
- /* Convert to Q10 */
- in32 = SKP_LSHIFT( (SKP_int32)in[ 2 * k + 1 ], 10 );
-
- /* All-pass section for odd input sample */
- Y = SKP_SUB32( in32, S[ 1 ] );
- X = SKP_SMULWB( Y, A_fb1_20[ 0 ] );
- out_2 = SKP_ADD32( S[ 1 ], X );
- S[ 1 ] = SKP_ADD32( in32, X );
-
- /* Add/subtract, convert back to int16 and store to output */
- outL[ k ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( SKP_ADD32( out_2, out_1 ), 11 ) );
- outH[ k ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( SKP_SUB32( out_2, out_1 ), 11 ) );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Apply sine window to signal vector. */
-/* Window types: */
-/* 1 -> sine window from 0 to pi/2 */
-/* 2 -> sine window from pi/2 to pi */
-/* Every other sample is linearly interpolated, for speed. */
-/* Window length must be between 16 and 120 (incl) and a multiple of 4. */
-
-/* Matlab code for table:
- for k=16:9*4:16+2*9*4, fprintf(' %7.d,', -round(65536*pi ./ (k:4:k+8*4))); fprintf('\n'); end
-*/
-static SKP_int16 freq_table_Q16[ 27 ] = {
- 12111, 9804, 8235, 7100, 6239, 5565, 5022, 4575, 4202,
- 3885, 3612, 3375, 3167, 2984, 2820, 2674, 2542, 2422,
- 2313, 2214, 2123, 2038, 1961, 1889, 1822, 1760, 1702,
-};
-
-
-void SKP_Silk_apply_sine_window_new(
- SKP_int16 px_win[], /* O Pointer to windowed signal */
- const SKP_int16 px[], /* I Pointer to input signal */
- const SKP_int win_type, /* I Selects a window type */
- const SKP_int length /* I Window length, multiple of 4 */
-)
-{
- SKP_int k, f_Q16, c_Q16;
- SKP_int32 S0_Q16, S1_Q16;
- SKP_assert( win_type == 1 || win_type == 2 );
-
- /* Length must be in a range from 16 to 120 and a multiple of 4 */
- SKP_assert( length >= 16 && length <= 120 );
- SKP_assert( ( length & 3 ) == 0 );
-
- /* Input pointer must be 4-byte aligned */
- SKP_assert( ( ( SKP_int64 )( ( SKP_int8* )px - ( SKP_int8* )0 ) & 3 ) == 0 );
-
- /* Frequency */
- k = ( length >> 2 ) - 4;
- SKP_assert( k >= 0 && k <= 26 );
- f_Q16 = (SKP_int)freq_table_Q16[ k ];
-
- /* Factor used for cosine approximation */
- c_Q16 = SKP_SMULWB( f_Q16, -f_Q16 );
- SKP_assert( c_Q16 >= -32768 );
-
- /* initialize state */
- if( win_type == 1 ) {
- /* start from 0 */
- S0_Q16 = 0;
- /* approximation of sin(f) */
- S1_Q16 = f_Q16 + SKP_RSHIFT( length, 3 );
- } else {
- /* start from 1 */
- S0_Q16 = ( 1 << 16 );
- /* approximation of cos(f) */
- S1_Q16 = ( 1 << 16 ) + SKP_RSHIFT( c_Q16, 1 ) + SKP_RSHIFT( length, 4 );
- }
-
- /* Uses the recursive equation: sin(n*f) = 2 * cos(f) * sin((n-1)*f) - sin((n-2)*f) */
- /* 4 samples at a time */
- for( k = 0; k < length; k += 4 ) {
- px_win[ k ] = (SKP_int16)SKP_SMULWB( SKP_RSHIFT( S0_Q16 + S1_Q16, 1 ), px[ k ] );
- px_win[ k + 1 ] = (SKP_int16)SKP_SMULWB( S1_Q16, px[ k + 1] );
- S0_Q16 = SKP_SMULWB( S1_Q16, c_Q16 ) + SKP_LSHIFT( S1_Q16, 1 ) - S0_Q16 + 1;
- S0_Q16 = SKP_min( S0_Q16, ( 1 << 16 ) );
-
- px_win[ k + 2 ] = (SKP_int16)SKP_SMULWB( SKP_RSHIFT( S0_Q16 + S1_Q16, 1 ), px[ k + 2] );
- px_win[ k + 3 ] = (SKP_int16)SKP_SMULWB( S0_Q16, px[ k + 3 ] );
- S1_Q16 = SKP_SMULWB( S0_Q16, c_Q16 ) + SKP_LSHIFT( S0_Q16, 1 ) - S1_Q16;
- S1_Q16 = SKP_min( S1_Q16, ( 1 << 16 ) );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_int16_array_maxabs.c *
- * *
- * Function that returns the maximum absolut value of *
- * the input vector *
- * *
- * Copyright 2006 (c), Skype Limited *
- * Date: 060221 *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Function that returns the maximum absolut value of the input vector */
-SKP_int16 SKP_Silk_int16_array_maxabs( /* O Maximum absolute value, max: 2^15-1 */
- const SKP_int16 *vec, /* I Input vector [len] */
- const SKP_int32 len /* I Length of input vector */
-)
-{
- SKP_int32 max = 0, i, lvl = 0, ind;
- if( len == 0 ) return 0;
-
- ind = len - 1;
- max = SKP_SMULBB( vec[ ind ], vec[ ind ] );
- for( i = len - 2; i >= 0; i-- ) {
- lvl = SKP_SMULBB( vec[ i ], vec[ i ] );
- if( lvl > max ) {
- max = lvl;
- ind = i;
- }
- }
-
- /* Do not return 32768, as it will not fit in an int16 so may lead to problems later on */
- if( max >= 1073676289 ) { // (2^15-1)^2 = 1073676289
- return( SKP_int16_MAX );
- } else {
- if( vec[ ind ] < 0 ) {
- return( -vec[ ind ] );
- } else {
- return( vec[ ind ] );
- }
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_autocorr.c *
- * *
- * Calculates the autocorrelation *
- * The result has 29 non-zero bits for the first correlation, to leave *
- * some room for adding white noise fractions etc. *
- * *
- * Copyright 2008 (c), Skype Limited *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Compute autocorrelation */
-void SKP_Silk_autocorr(
- SKP_int32 *results, /* O Result (length correlationCount) */
- SKP_int *scale, /* O Scaling of the correlation vector */
- const SKP_int16 *inputData, /* I Input data to correlate */
- const SKP_int inputDataSize, /* I Length of input */
- const SKP_int correlationCount /* I Number of correlation taps to compute */
-)
-{
- SKP_int i, lz, nRightShifts, corrCount;
- SKP_int64 corr64;
-
- corrCount = SKP_min_int( inputDataSize, correlationCount );
-
- /* compute energy (zero-lag correlation) */
- corr64 = SKP_Silk_inner_prod16_aligned_64( inputData, inputData, inputDataSize );
-
- /* deal with all-zero input data */
- corr64 += 1;
-
- /* number of leading zeros */
- lz = SKP_Silk_CLZ64( corr64 );
-
- /* scaling: number of right shifts applied to correlations */
- nRightShifts = 35 - lz;
- *scale = nRightShifts;
-
- if( nRightShifts <= 0 ) {
- results[ 0 ] = SKP_LSHIFT( (SKP_int32)SKP_CHECK_FIT32( corr64 ), -nRightShifts );
-
- /* compute remaining correlations based on int32 inner product */
- for( i = 1; i < corrCount; i++ ) {
- results[ i ] = SKP_LSHIFT( SKP_Silk_inner_prod_aligned( inputData, inputData + i, inputDataSize - i ), -nRightShifts );
- }
- } else {
- results[ 0 ] = (SKP_int32)SKP_CHECK_FIT32( SKP_RSHIFT64( corr64, nRightShifts ) );
-
- /* compute remaining correlations based on int64 inner product */
- for( i = 1; i < corrCount; i++ ) {
- results[ i ] = (SKP_int32)SKP_CHECK_FIT32( SKP_RSHIFT64( SKP_Silk_inner_prod16_aligned_64( inputData, inputData + i, inputDataSize - i ), nRightShifts ) );
- }
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_biquad.c *
- * *
- * Second order ARMA filter *
- * Can handle slowly varying filter coefficients *
- * *
- * Copyright 2006 (c), Skype Limited *
- * Date: 060221 *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Second order ARMA filter */
-/* Can handle slowly varying filter coefficients */
-void SKP_Silk_biquad(
- const SKP_int16 *in, /* I: input signal */
- const SKP_int16 *B, /* I: MA coefficients, Q13 [3] */
- const SKP_int16 *A, /* I: AR coefficients, Q13 [2] */
- SKP_int32 *S, /* I/O: state vector [2] */
- SKP_int16 *out, /* O: output signal */
- const SKP_int32 len /* I: signal length */
-)
-{
- SKP_int k, in16;
- SKP_int32 A0_neg, A1_neg, S0, S1, out32, tmp32;
-
- S0 = S[ 0 ];
- S1 = S[ 1 ];
- A0_neg = -A[ 0 ];
- A1_neg = -A[ 1 ];
- for( k = 0; k < len; k++ ) {
- /* S[ 0 ], S[ 1 ]: Q13 */
- in16 = in[ k ];
- out32 = SKP_SMLABB( S0, in16, B[ 0 ] );
-
- S0 = SKP_SMLABB( S1, in16, B[ 1 ] );
- S0 += SKP_LSHIFT( SKP_SMULWB( out32, A0_neg ), 3 );
-
- S1 = SKP_LSHIFT( SKP_SMULWB( out32, A1_neg ), 3 );
- S1 = SKP_SMLABB( S1, in16, B[ 2 ] );
- tmp32 = SKP_RSHIFT_ROUND( out32, 13 ) + 1;
- out[ k ] = (SKP_int16)SKP_SAT16( tmp32 );
- }
- S[ 0 ] = S0;
- S[ 1 ] = S1;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_biquad_alt.c *
- * *
- * Second order ARMA filter *
- * Can handle slowly varying filter coefficients *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-
-
-/* Second order ARMA filter, alternative implementation */
-void SKP_Silk_biquad_alt(
- const SKP_int16 *in, /* I: Input signal */
- const SKP_int32 *B_Q28, /* I: MA coefficients [3] */
- const SKP_int32 *A_Q28, /* I: AR coefficients [2] */
- SKP_int32 *S, /* I/O: State vector [2] */
- SKP_int16 *out, /* O: Output signal */
- const SKP_int32 len /* I: Signal length (must be even) */
-)
-{
- /* DIRECT FORM II TRANSPOSED (uses 2 element state vector) */
- SKP_int k;
- SKP_int32 inval, A0_U_Q28, A0_L_Q28, A1_U_Q28, A1_L_Q28, out32_Q14;
-
- /* Negate A_Q28 values and split in two parts */
- A0_L_Q28 = ( -A_Q28[ 0 ] ) & 0x00003FFF; /* lower part */
- A0_U_Q28 = SKP_RSHIFT( -A_Q28[ 0 ], 14 ); /* upper part */
- A1_L_Q28 = ( -A_Q28[ 1 ] ) & 0x00003FFF; /* lower part */
- A1_U_Q28 = SKP_RSHIFT( -A_Q28[ 1 ], 14 ); /* upper part */
-
- for( k = 0; k < len; k++ ) {
- /* S[ 0 ], S[ 1 ]: Q12 */
- inval = in[ k ];
- out32_Q14 = SKP_LSHIFT( SKP_SMLAWB( S[ 0 ], B_Q28[ 0 ], inval ), 2 );
-
- S[ 0 ] = S[1] + SKP_RSHIFT_ROUND( SKP_SMULWB( out32_Q14, A0_L_Q28 ), 14 );
- S[ 0 ] = SKP_SMLAWB( S[ 0 ], out32_Q14, A0_U_Q28 );
- S[ 0 ] = SKP_SMLAWB( S[ 0 ], B_Q28[ 1 ], inval);
-
- S[ 1 ] = SKP_RSHIFT_ROUND( SKP_SMULWB( out32_Q14, A1_L_Q28 ), 14 );
- S[ 1 ] = SKP_SMLAWB( S[ 1 ], out32_Q14, A1_U_Q28 );
- S[ 1 ] = SKP_SMLAWB( S[ 1 ], B_Q28[ 2 ], inval );
-
- /* Scale back to Q0 and saturate */
- out[ k ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT( out32_Q14 + (1<<14) - 1, 14 ) );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_burg_modified.c *
- * *
- * Calculates the reflection coefficients from the input vector *
- * Input vector contains nb_subfr sub vectors of length L_sub + D *
- * *
- * Copyright 2009 (c), Skype Limited *
- * Date: 100105 *
- */
-
-#include "SKP_Silk_SigProc_FIX.h"
-
-#define MAX_FRAME_SIZE 544 // subfr_length * nb_subfr = ( 0.005 * 24000 + 16 ) * 4 = 544
-#define MAX_NB_SUBFR 4
-
-#define QA 25
-#define N_BITS_HEAD_ROOM 2
-#define MIN_RSHIFTS -16
-#define MAX_RSHIFTS (32 - QA)
-
-/* Compute reflection coefficients from input signal */
-void SKP_Silk_burg_modified(
- SKP_int32 *res_nrg, /* O residual energy */
- SKP_int *res_nrg_Q, /* O residual energy Q value */
- SKP_int32 A_Q16[], /* O prediction coefficients (length order) */
- const SKP_int16 x[], /* I input signal, length: nb_subfr * ( D + subfr_length ) */
- const SKP_int subfr_length, /* I input signal subframe length (including D preceeding samples) */
- const SKP_int nb_subfr, /* I number of subframes stacked in x */
- const SKP_int32 WhiteNoiseFrac_Q32, /* I fraction added to zero-lag autocorrelation */
- const SKP_int D /* I order */
-)
-{
- SKP_int k, n, s, lz, rshifts, rshifts_extra;
- SKP_int32 C0, num, nrg, rc_Q31, Atmp_QA, Atmp1, tmp1, tmp2, x1, x2;
- const SKP_int16 *x_ptr;
-
- SKP_int32 C_first_row[ SKP_Silk_MAX_ORDER_LPC ];
- SKP_int32 C_last_row[ SKP_Silk_MAX_ORDER_LPC ];
- SKP_int32 Af_QA[ SKP_Silk_MAX_ORDER_LPC ];
-
- SKP_int32 CAf[ SKP_Silk_MAX_ORDER_LPC + 1 ];
- SKP_int32 CAb[ SKP_Silk_MAX_ORDER_LPC + 1 ];
-
- SKP_assert( subfr_length * nb_subfr <= MAX_FRAME_SIZE );
- SKP_assert( nb_subfr <= MAX_NB_SUBFR );
-
-
- /* Compute autocorrelations, added over subframes */
- SKP_Silk_sum_sqr_shift( &C0, &rshifts, x, nb_subfr * subfr_length );
- if( rshifts > MAX_RSHIFTS ) {
- C0 = SKP_LSHIFT32( C0, rshifts - MAX_RSHIFTS );
- SKP_assert( C0 > 0 );
- rshifts = MAX_RSHIFTS;
- } else {
- lz = SKP_Silk_CLZ32( C0 ) - 1;
- rshifts_extra = N_BITS_HEAD_ROOM - lz;
- if( rshifts_extra > 0 ) {
- rshifts_extra = SKP_min( rshifts_extra, MAX_RSHIFTS - rshifts );
- C0 = SKP_RSHIFT32( C0, rshifts_extra );
- } else {
- rshifts_extra = SKP_max( rshifts_extra, MIN_RSHIFTS - rshifts );
- C0 = SKP_LSHIFT32( C0, -rshifts_extra );
- }
- rshifts += rshifts_extra;
- }
- SKP_memset( C_first_row, 0, SKP_Silk_MAX_ORDER_LPC * sizeof( SKP_int32 ) );
- if( rshifts > 0 ) {
- for( s = 0; s < nb_subfr; s++ ) {
- x_ptr = x + s * subfr_length;
- for( n = 1; n < D + 1; n++ ) {
- C_first_row[ n - 1 ] += (SKP_int32)SKP_RSHIFT64(
- SKP_Silk_inner_prod16_aligned_64( x_ptr, x_ptr + n, subfr_length - n ), rshifts );
- }
- }
- } else {
- for( s = 0; s < nb_subfr; s++ ) {
- x_ptr = x + s * subfr_length;
- for( n = 1; n < D + 1; n++ ) {
- C_first_row[ n - 1 ] += SKP_LSHIFT32(
- SKP_Silk_inner_prod_aligned( x_ptr, x_ptr + n, subfr_length - n ), -rshifts );
- }
- }
- }
- SKP_memcpy( C_last_row, C_first_row, SKP_Silk_MAX_ORDER_LPC * sizeof( SKP_int32 ) );
-
- /* Initialize */
- CAb[ 0 ] = CAf[ 0 ] = C0 + SKP_SMMUL( WhiteNoiseFrac_Q32, C0 ) + 1; // Q(-rshifts)
-
- for( n = 0; n < D; n++ ) {
- /* Update first row of correlation matrix (without first element) */
- /* Update last row of correlation matrix (without last element, stored in reversed order) */
- /* Update C * Af */
- /* Update C * flipud(Af) (stored in reversed order) */
- if( rshifts > -2 ) {
- for( s = 0; s < nb_subfr; s++ ) {
- x_ptr = x + s * subfr_length;
- x1 = -SKP_LSHIFT32( (SKP_int32)x_ptr[ n ], 16 - rshifts ); // Q(16-rshifts)
- x2 = -SKP_LSHIFT32( (SKP_int32)x_ptr[ subfr_length - n - 1 ], 16 - rshifts ); // Q(16-rshifts)
- tmp1 = SKP_LSHIFT32( (SKP_int32)x_ptr[ n ], QA - 16 ); // Q(QA-16)
- tmp2 = SKP_LSHIFT32( (SKP_int32)x_ptr[ subfr_length - n - 1 ], QA - 16 ); // Q(QA-16)
- for( k = 0; k < n; k++ ) {
- C_first_row[ k ] = SKP_SMLAWB( C_first_row[ k ], x1, x_ptr[ n - k - 1 ] ); // Q( -rshifts )
- C_last_row[ k ] = SKP_SMLAWB( C_last_row[ k ], x2, x_ptr[ subfr_length - n + k ] ); // Q( -rshifts )
- Atmp_QA = Af_QA[ k ];
- tmp1 = SKP_SMLAWB( tmp1, Atmp_QA, x_ptr[ n - k - 1 ] ); // Q(QA-16)
- tmp2 = SKP_SMLAWB( tmp2, Atmp_QA, x_ptr[ subfr_length - n + k ] ); // Q(QA-16)
- }
- tmp1 = SKP_LSHIFT32( -tmp1, 32 - QA - rshifts ); // Q(16-rshifts)
- tmp2 = SKP_LSHIFT32( -tmp2, 32 - QA - rshifts ); // Q(16-rshifts)
- for( k = 0; k <= n; k++ ) {
- CAf[ k ] = SKP_SMLAWB( CAf[ k ], tmp1, x_ptr[ n - k ] ); // Q( -rshift )
- CAb[ k ] = SKP_SMLAWB( CAb[ k ], tmp2, x_ptr[ subfr_length - n + k - 1 ] ); // Q( -rshift )
- }
- }
- } else {
- for( s = 0; s < nb_subfr; s++ ) {
- x_ptr = x + s * subfr_length;
- x1 = -SKP_LSHIFT32( (SKP_int32)x_ptr[ n ], -rshifts ); // Q( -rshifts )
- x2 = -SKP_LSHIFT32( (SKP_int32)x_ptr[ subfr_length - n - 1 ], -rshifts ); // Q( -rshifts )
- tmp1 = SKP_LSHIFT32( (SKP_int32)x_ptr[ n ], 17 ); // Q17
- tmp2 = SKP_LSHIFT32( (SKP_int32)x_ptr[ subfr_length - n - 1 ], 17 ); // Q17
- for( k = 0; k < n; k++ ) {
- C_first_row[ k ] = SKP_MLA( C_first_row[ k ], x1, x_ptr[ n - k - 1 ] ); // Q( -rshifts )
- C_last_row[ k ] = SKP_MLA( C_last_row[ k ], x2, x_ptr[ subfr_length - n + k ] ); // Q( -rshifts )
- Atmp1 = SKP_RSHIFT_ROUND( Af_QA[ k ], QA - 17 ); // Q17
- tmp1 = SKP_MLA( tmp1, x_ptr[ n - k - 1 ], Atmp1 ); // Q17
- tmp2 = SKP_MLA( tmp2, x_ptr[ subfr_length - n + k ], Atmp1 ); // Q17
- }
- tmp1 = -tmp1; // Q17
- tmp2 = -tmp2; // Q17
- for( k = 0; k <= n; k++ ) {
- CAf[ k ] = SKP_SMLAWW( CAf[ k ], tmp1,
- SKP_LSHIFT32( (SKP_int32)x_ptr[ n - k ], -rshifts - 1 ) ); // Q( -rshift )
- CAb[ k ] = SKP_SMLAWW( CAb[ k ], tmp2,
- SKP_LSHIFT32( (SKP_int32)x_ptr[ subfr_length - n + k - 1 ], -rshifts - 1 ) );// Q( -rshift )
- }
- }
- }
-
- /* Calculate nominator and denominator for the next order reflection (parcor) coefficient */
- tmp1 = C_first_row[ n ]; // Q( -rshifts )
- tmp2 = C_last_row[ n ]; // Q( -rshifts )
- num = 0; // Q( -rshifts )
- nrg = SKP_ADD32( CAb[ 0 ], CAf[ 0 ] ); // Q( 1-rshifts )
- for( k = 0; k < n; k++ ) {
- Atmp_QA = Af_QA[ k ];
- lz = SKP_Silk_CLZ32( SKP_abs( Atmp_QA ) ) - 1;
- lz = SKP_min( 32 - QA, lz );
- Atmp1 = SKP_LSHIFT32( Atmp_QA, lz ); // Q( QA + lz )
-
- tmp1 = SKP_ADD_LSHIFT32( tmp1, SKP_SMMUL( C_last_row[ n - k - 1 ], Atmp1 ), 32 - QA - lz ); // Q( -rshifts )
- tmp2 = SKP_ADD_LSHIFT32( tmp2, SKP_SMMUL( C_first_row[ n - k - 1 ], Atmp1 ), 32 - QA - lz ); // Q( -rshifts )
- num = SKP_ADD_LSHIFT32( num, SKP_SMMUL( CAb[ n - k ], Atmp1 ), 32 - QA - lz ); // Q( -rshifts )
- nrg = SKP_ADD_LSHIFT32( nrg, SKP_SMMUL( SKP_ADD32( CAb[ k + 1 ], CAf[ k + 1 ] ),
- Atmp1 ), 32 - QA - lz ); // Q( 1-rshifts )
- }
- CAf[ n + 1 ] = tmp1; // Q( -rshifts )
- CAb[ n + 1 ] = tmp2; // Q( -rshifts )
- num = SKP_ADD32( num, tmp2 ); // Q( -rshifts )
- num = SKP_LSHIFT32( -num, 1 ); // Q( 1-rshifts )
-
- /* Calculate the next order reflection (parcor) coefficient */
- if( SKP_abs( num ) < nrg ) {
- rc_Q31 = SKP_DIV32_varQ( num, nrg, 31 );
- } else {
- /* Negative energy or ratio too high; set remaining coefficients to zero and exit loop */
- SKP_memset( &Af_QA[ n ], 0, ( D - n ) * sizeof( SKP_int32 ) );
- SKP_assert( 0 );
- break;
- }
-
- /* Update the AR coefficients */
- for( k = 0; k < (n + 1) >> 1; k++ ) {
- tmp1 = Af_QA[ k ]; // QA
- tmp2 = Af_QA[ n - k - 1 ]; // QA
- Af_QA[ k ] = SKP_ADD_LSHIFT32( tmp1, SKP_SMMUL( tmp2, rc_Q31 ), 1 ); // QA
- Af_QA[ n - k - 1 ] = SKP_ADD_LSHIFT32( tmp2, SKP_SMMUL( tmp1, rc_Q31 ), 1 ); // QA
- }
- Af_QA[ n ] = SKP_RSHIFT32( rc_Q31, 31 - QA ); // QA
-
- /* Update C * Af and C * Ab */
- for( k = 0; k <= n + 1; k++ ) {
- tmp1 = CAf[ k ]; // Q( -rshifts )
- tmp2 = CAb[ n - k + 1 ]; // Q( -rshifts )
- CAf[ k ] = SKP_ADD_LSHIFT32( tmp1, SKP_SMMUL( tmp2, rc_Q31 ), 1 ); // Q( -rshifts )
- CAb[ n - k + 1 ] = SKP_ADD_LSHIFT32( tmp2, SKP_SMMUL( tmp1, rc_Q31 ), 1 ); // Q( -rshifts )
- }
- }
-
- /* Return residual energy */
- nrg = CAf[ 0 ]; // Q( -rshifts )
- tmp1 = 1 << 16; // Q16
- for( k = 0; k < D; k++ ) {
- Atmp1 = SKP_RSHIFT_ROUND( Af_QA[ k ], QA - 16 ); // Q16
- nrg = SKP_SMLAWW( nrg, CAf[ k + 1 ], Atmp1 ); // Q( -rshifts )
- tmp1 = SKP_SMLAWW( tmp1, Atmp1, Atmp1 ); // Q16
- A_Q16[ k ] = -Atmp1;
- }
- *res_nrg = SKP_SMLAWW( nrg, SKP_SMMUL( WhiteNoiseFrac_Q32, C0 ), -tmp1 ); // Q( -rshifts )
- *res_nrg_Q = -rshifts;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Chirp (bandwidth expand) LP AR filter */
-void SKP_Silk_bwexpander(
- SKP_int16 *ar, /* I/O AR filter to be expanded (without leading 1) */
- const SKP_int d, /* I Length of ar */
- SKP_int32 chirp_Q16 /* I Chirp factor (typically in the range 0 to 1) */
-)
-{
- SKP_int i;
- SKP_int32 chirp_minus_one_Q16;
-
- chirp_minus_one_Q16 = chirp_Q16 - 65536;
-
- /* NB: Dont use SKP_SMULWB, instead of SKP_RSHIFT_ROUND( SKP_MUL() , 16 ), below. */
- /* Bias in SKP_SMULWB can lead to unstable filters */
- for( i = 0; i < d - 1; i++ ) {
- ar[ i ] = (SKP_int16)SKP_RSHIFT_ROUND( SKP_MUL( chirp_Q16, ar[ i ] ), 16 );
- chirp_Q16 += SKP_RSHIFT_ROUND( SKP_MUL( chirp_Q16, chirp_minus_one_Q16 ), 16 );
- }
- ar[ d - 1 ] = (SKP_int16)SKP_RSHIFT_ROUND( SKP_MUL( chirp_Q16, ar[ d - 1 ] ), 16 );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Chirp (bandwidth expand) LP AR filter */
-void SKP_Silk_bwexpander_32(
- SKP_int32 *ar, /* I/O AR filter to be expanded (without leading 1) */
- const SKP_int d, /* I Length of ar */
- SKP_int32 chirp_Q16 /* I Chirp factor in Q16 */
-)
-{
- SKP_int i;
- SKP_int32 tmp_chirp_Q16;
-
- tmp_chirp_Q16 = chirp_Q16;
- for( i = 0; i < d - 1; i++ ) {
- ar[ i ] = SKP_SMULWW( ar[ i ], tmp_chirp_Q16 );
- tmp_chirp_Q16 = SKP_SMULWW( chirp_Q16, tmp_chirp_Q16 );
- }
- ar[ d - 1 ] = SKP_SMULWW( ar[ d - 1 ], tmp_chirp_Q16 );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-//#define SKP_enc_map(a) ((a) > 0 ? 1 : 0)
-//#define SKP_dec_map(a) ((a) > 0 ? 1 : -1)
-/* shifting avoids if-statement */
-#define SKP_enc_map(a) ( SKP_RSHIFT( (a), 15 ) + 1 )
-#define SKP_dec_map(a) ( SKP_LSHIFT( (a), 1 ) - 1 )
-
-/* Encodes signs of excitation */
-void SKP_Silk_encode_signs(
- SKP_Silk_range_coder_state *sRC, /* I/O Range coder state */
- const SKP_int8 q[], /* I Pulse signal */
- const SKP_int length, /* I Length of input */
- const SKP_int sigtype, /* I Signal type */
- const SKP_int QuantOffsetType, /* I Quantization offset type */
- const SKP_int RateLevelIndex /* I Rate level index */
-)
-{
- SKP_int i;
- SKP_int inData;
- SKP_uint16 cdf[ 3 ];
-
- i = SKP_SMULBB( N_RATE_LEVELS - 1, SKP_LSHIFT( sigtype, 1 ) + QuantOffsetType ) + RateLevelIndex;
- cdf[ 0 ] = 0;
- cdf[ 1 ] = SKP_Silk_sign_CDF[ i ];
- cdf[ 2 ] = 65535;
-
- for( i = 0; i < length; i++ ) {
- if( q[ i ] != 0 ) {
- inData = SKP_enc_map( q[ i ] ); /* - = 0, + = 1 */
- SKP_Silk_range_encoder( sRC, inData, cdf );
- }
- }
-}
-
-/* Decodes signs of excitation */
-void SKP_Silk_decode_signs(
- SKP_Silk_range_coder_state *sRC, /* I/O Range coder state */
- SKP_int q[], /* I/O pulse signal */
- const SKP_int length, /* I length of output */
- const SKP_int sigtype, /* I Signal type */
- const SKP_int QuantOffsetType, /* I Quantization offset type */
- const SKP_int RateLevelIndex /* I Rate Level Index */
-)
-{
- SKP_int i;
- SKP_int data;
- SKP_uint16 cdf[ 3 ];
-
- i = SKP_SMULBB( N_RATE_LEVELS - 1, SKP_LSHIFT( sigtype, 1 ) + QuantOffsetType ) + RateLevelIndex;
- cdf[ 0 ] = 0;
- cdf[ 1 ] = SKP_Silk_sign_CDF[ i ];
- cdf[ 2 ] = 65535;
-
- for( i = 0; i < length; i++ ) {
- if( q[ i ] > 0 ) {
- SKP_Silk_range_decoder( &data, sRC, cdf, 1 );
- /* attach sign */
- /* implementation with shift, subtraction, multiplication */
- q[ i ] *= SKP_dec_map( data );
- }
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SIGPROC_COMMON_PITCH_EST_DEFINES_H
-#define SIGPROC_COMMON_PITCH_EST_DEFINES_H
-
-#include "SKP_Silk_SigProc_FIX.h"
-
-/************************************************************/
-/* Definitions For Fix pitch estimator */
-/************************************************************/
-
-#define PITCH_EST_MAX_FS_KHZ 24 /* Maximum sampling frequency used */
-
-#define PITCH_EST_FRAME_LENGTH_MS 40 /* 40 ms */
-
-#define PITCH_EST_MAX_FRAME_LENGTH (PITCH_EST_FRAME_LENGTH_MS * PITCH_EST_MAX_FS_KHZ)
-#define PITCH_EST_MAX_FRAME_LENGTH_ST_1 (PITCH_EST_MAX_FRAME_LENGTH >> 2)
-#define PITCH_EST_MAX_FRAME_LENGTH_ST_2 (PITCH_EST_MAX_FRAME_LENGTH >> 1)
-#define PITCH_EST_MAX_SF_FRAME_LENGTH (PITCH_EST_SUB_FRAME * PITCH_EST_MAX_FS_KHZ)
-
-#define PITCH_EST_MAX_LAG_MS 18 /* 18 ms -> 56 Hz */
-#define PITCH_EST_MIN_LAG_MS 2 /* 2 ms -> 500 Hz */
-#define PITCH_EST_MAX_LAG (PITCH_EST_MAX_LAG_MS * PITCH_EST_MAX_FS_KHZ)
-#define PITCH_EST_MIN_LAG (PITCH_EST_MIN_LAG_MS * PITCH_EST_MAX_FS_KHZ)
-
-#define PITCH_EST_NB_SUBFR 4
-
-#define PITCH_EST_D_SRCH_LENGTH 24
-
-#define PITCH_EST_MAX_DECIMATE_STATE_LENGTH 7
-
-#define PITCH_EST_NB_STAGE3_LAGS 5
-
-#define PITCH_EST_NB_CBKS_STAGE2 3
-#define PITCH_EST_NB_CBKS_STAGE2_EXT 11
-
-#define PITCH_EST_CB_mn2 1
-#define PITCH_EST_CB_mx2 2
-
-#define PITCH_EST_NB_CBKS_STAGE3_MAX 34
-#define PITCH_EST_NB_CBKS_STAGE3_MID 24
-#define PITCH_EST_NB_CBKS_STAGE3_MIN 16
-
-extern const SKP_int16 SKP_Silk_CB_lags_stage2[PITCH_EST_NB_SUBFR][PITCH_EST_NB_CBKS_STAGE2_EXT];
-extern const SKP_int16 SKP_Silk_CB_lags_stage3[PITCH_EST_NB_SUBFR][PITCH_EST_NB_CBKS_STAGE3_MAX];
-extern const SKP_int16 SKP_Silk_Lag_range_stage3[ SKP_Silk_PITCH_EST_MAX_COMPLEX + 1 ] [ PITCH_EST_NB_SUBFR ][ 2 ];
-extern const SKP_int16 SKP_Silk_cbk_sizes_stage3[ SKP_Silk_PITCH_EST_MAX_COMPLEX + 1 ];
-extern const SKP_int16 SKP_Silk_cbk_offsets_stage3[ SKP_Silk_PITCH_EST_MAX_COMPLEX + 1 ];
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-/* Control internal sampling rate */
-SKP_int SKP_Silk_control_audio_bandwidth(
- SKP_Silk_encoder_state *psEncC, /* I/O Pointer to Silk encoder state */
- const SKP_int32 TargetRate_bps /* I Target max bitrate (bps) */
-)
-{
- SKP_int fs_kHz;
-
- fs_kHz = psEncC->fs_kHz;
- if( fs_kHz == 0 ) {
- /* Encoder has just been initialized */
- if( TargetRate_bps >= SWB2WB_BITRATE_BPS ) {
- fs_kHz = 24;
- } else if( TargetRate_bps >= WB2MB_BITRATE_BPS ) {
- fs_kHz = 16;
- } else if( TargetRate_bps >= MB2NB_BITRATE_BPS ) {
- fs_kHz = 12;
- } else {
- fs_kHz = 8;
- }
- /* Make sure internal rate is not higher than external rate or maximum allowed, or lower than minimum allowed */
- fs_kHz = SKP_min( fs_kHz, SKP_DIV32_16( psEncC->API_fs_Hz, 1000 ) );
- fs_kHz = SKP_min( fs_kHz, psEncC->maxInternal_fs_kHz );
- } else if( SKP_SMULBB( fs_kHz, 1000 ) > psEncC->API_fs_Hz || fs_kHz > psEncC->maxInternal_fs_kHz ) {
- /* Make sure internal rate is not higher than external rate or maximum allowed */
- fs_kHz = SKP_DIV32_16( psEncC->API_fs_Hz, 1000 );
- fs_kHz = SKP_min( fs_kHz, psEncC->maxInternal_fs_kHz );
- } else {
- /* State machine for the internal sampling rate switching */
- if( psEncC->API_fs_Hz > 8000 ) {
- /* Accumulate the difference between the target rate and limit for switching down */
- psEncC->bitrateDiff += SKP_MUL( psEncC->PacketSize_ms, psEncC->TargetRate_bps - psEncC->bitrate_threshold_down );
- psEncC->bitrateDiff = SKP_min( psEncC->bitrateDiff, 0 );
-
- if( psEncC->vadFlag == NO_VOICE_ACTIVITY ) { /* Low speech activity */
- /* Check if we should switch down */
-#if SWITCH_TRANSITION_FILTERING
- if( ( psEncC->sLP.transition_frame_no == 0 ) && /* Transition phase not active */
- ( psEncC->bitrateDiff <= -ACCUM_BITS_DIFF_THRESHOLD || /* Bitrate threshold is met */
- ( psEncC->sSWBdetect.WB_detected * psEncC->fs_kHz == 24 ) ) ) { /* Forced down-switching due to WB input */
- psEncC->sLP.transition_frame_no = 1; /* Begin transition phase */
- psEncC->sLP.mode = 0; /* Switch down */
- } else if(
- ( psEncC->sLP.transition_frame_no >= TRANSITION_FRAMES_DOWN ) && /* Transition phase complete */
- ( psEncC->sLP.mode == 0 ) ) { /* Ready to switch down */
- psEncC->sLP.transition_frame_no = 0; /* Ready for new transition phase */
-#else
- if( psEncC->bitrateDiff <= -ACCUM_BITS_DIFF_THRESHOLD ) { /* Bitrate threshold is met */
-#endif
- psEncC->bitrateDiff = 0;
-
- /* Switch to a lower sample frequency */
- if( psEncC->fs_kHz == 24 ) {
- fs_kHz = 16;
- } else if( psEncC->fs_kHz == 16 ) {
- fs_kHz = 12;
- } else {
- SKP_assert( psEncC->fs_kHz == 12 );
- fs_kHz = 8;
- }
- }
-
- /* Check if we should switch up */
- if( ( ( psEncC->fs_kHz * 1000 < psEncC->API_fs_Hz ) &&
- ( psEncC->TargetRate_bps >= psEncC->bitrate_threshold_up ) &&
- ( psEncC->sSWBdetect.WB_detected * psEncC->fs_kHz < 16 ) ) &&
- ( ( ( psEncC->fs_kHz == 16 ) && ( psEncC->maxInternal_fs_kHz >= 24 ) ) ||
- ( ( psEncC->fs_kHz == 12 ) && ( psEncC->maxInternal_fs_kHz >= 16 ) ) ||
- ( ( psEncC->fs_kHz == 8 ) && ( psEncC->maxInternal_fs_kHz >= 12 ) ) )
-#if SWITCH_TRANSITION_FILTERING
- && ( psEncC->sLP.transition_frame_no == 0 ) ) { /* No transition phase running, ready to switch */
- psEncC->sLP.mode = 1; /* Switch up */
-#else
- ) {
-#endif
- psEncC->bitrateDiff = 0;
-
- /* Switch to a higher sample frequency */
- if( psEncC->fs_kHz == 8 ) {
- fs_kHz = 12;
- } else if( psEncC->fs_kHz == 12 ) {
- fs_kHz = 16;
- } else {
- SKP_assert( psEncC->fs_kHz == 16 );
- fs_kHz = 24;
- }
- }
- }
- }
-
-#if SWITCH_TRANSITION_FILTERING
- /* After switching up, stop transition filter during speech inactivity */
- if( ( psEncC->sLP.mode == 1 ) &&
- ( psEncC->sLP.transition_frame_no >= TRANSITION_FRAMES_UP ) &&
- ( psEncC->vadFlag == NO_VOICE_ACTIVITY ) ) {
-
- psEncC->sLP.transition_frame_no = 0;
-
- /* Reset transition filter state */
- SKP_memset( psEncC->sLP.In_LP_State, 0, 2 * sizeof( SKP_int32 ) );
- }
-#endif
- }
-
-
-
- return fs_kHz;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_setup_complexity.h"
-
-SKP_INLINE SKP_int SKP_Silk_setup_resamplers_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk encoder state FIX */
- SKP_int fs_kHz /* I Internal sampling rate (kHz) */
-);
-
-SKP_INLINE SKP_int SKP_Silk_setup_packetsize_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk encoder state FIX */
- SKP_int PacketSize_ms /* I Packet length (ms) */
-);
-
-SKP_INLINE SKP_int SKP_Silk_setup_fs_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk encoder state FIX */
- SKP_int fs_kHz /* I Internal sampling rate (kHz) */
-);
-
-SKP_INLINE SKP_int SKP_Silk_setup_rate_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk encoder state FIX */
- SKP_int TargetRate_bps /* I Target max bitrate (if SNR_dB == 0) */
-);
-
-SKP_INLINE SKP_int SKP_Silk_setup_LBRR_FIX(
- SKP_Silk_encoder_state_FIX *psEnc /* I/O Pointer to Silk encoder state FIX */
-);
-
-/* Control encoder */
-SKP_int SKP_Silk_control_encoder_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk encoder state */
- const SKP_int PacketSize_ms, /* I Packet length (ms) */
- const SKP_int32 TargetRate_bps, /* I Target max bitrate (bps) */
- const SKP_int PacketLoss_perc, /* I Packet loss rate (in percent) */
- const SKP_int DTX_enabled, /* I Enable / disable DTX */
- const SKP_int Complexity /* I Complexity (0->low; 1->medium; 2->high) */
-)
-{
- SKP_int fs_kHz, ret = 0;
-
- if( psEnc->sCmn.controlled_since_last_payload != 0 ) {
- if( psEnc->sCmn.API_fs_Hz != psEnc->sCmn.prev_API_fs_Hz && psEnc->sCmn.fs_kHz > 0 ) {
- /* Change in API sampling rate in the middle of encoding a packet */
- ret += SKP_Silk_setup_resamplers_FIX( psEnc, psEnc->sCmn.fs_kHz );
- }
- return ret;
- }
-
- /* Beyond this point we know that there are no previously coded frames in the payload buffer */
-
- /********************************************/
- /* Determine internal sampling rate */
- /********************************************/
- fs_kHz = SKP_Silk_control_audio_bandwidth( &psEnc->sCmn, TargetRate_bps );
-
- /********************************************/
- /* Prepare resampler and buffered data */
- /********************************************/
- ret += SKP_Silk_setup_resamplers_FIX( psEnc, fs_kHz );
-
- /********************************************/
- /* Set packet size */
- /********************************************/
- ret += SKP_Silk_setup_packetsize_FIX( psEnc, PacketSize_ms );
-
- /********************************************/
- /* Set internal sampling frequency */
- /********************************************/
- ret += SKP_Silk_setup_fs_FIX( psEnc, fs_kHz );
-
- /********************************************/
- /* Set encoding complexity */
- /********************************************/
- ret += SKP_Silk_setup_complexity( &psEnc->sCmn, Complexity );
-
- /********************************************/
- /* Set bitrate/coding quality */
- /********************************************/
- ret += SKP_Silk_setup_rate_FIX( psEnc, TargetRate_bps );
-
- /********************************************/
- /* Set packet loss rate measured by farend */
- /********************************************/
- if( ( PacketLoss_perc < 0 ) || ( PacketLoss_perc > 100 ) ) {
- ret = SKP_SILK_ENC_INVALID_LOSS_RATE;
- }
- psEnc->sCmn.PacketLoss_perc = PacketLoss_perc;
-
- /********************************************/
- /* Set LBRR usage */
- /********************************************/
- ret += SKP_Silk_setup_LBRR_FIX( psEnc );
-
- /********************************************/
- /* Set DTX mode */
- /********************************************/
- if( DTX_enabled < 0 || DTX_enabled > 1 ) {
- ret = SKP_SILK_ENC_INVALID_DTX_SETTING;
- }
- psEnc->sCmn.useDTX = DTX_enabled;
- psEnc->sCmn.controlled_since_last_payload = 1;
-
- return ret;
-}
-
-/* Control low bitrate redundancy usage */
-void SKP_Silk_LBRR_ctrl_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I Encoder state FIX */
- SKP_Silk_encoder_control *psEncCtrlC /* I/O Encoder control */
-)
-{
- SKP_int LBRR_usage;
-
- if( psEnc->sCmn.LBRR_enabled ) {
- /* Control LBRR */
-
- /* Usage Control based on sensitivity and packet loss caracteristics */
- /* For now only enable adding to next for active frames. Make more complex later */
- LBRR_usage = SKP_SILK_NO_LBRR;
- if( psEnc->speech_activity_Q8 > SKP_FIX_CONST( LBRR_SPEECH_ACTIVITY_THRES, 8 ) && psEnc->sCmn.PacketLoss_perc > LBRR_LOSS_THRES ) { // nb! maybe multiply loss prob and speech activity
- LBRR_usage = SKP_SILK_ADD_LBRR_TO_PLUS1;
- }
- psEncCtrlC->LBRR_usage = LBRR_usage;
- } else {
- psEncCtrlC->LBRR_usage = SKP_SILK_NO_LBRR;
- }
-}
-
-SKP_INLINE SKP_int SKP_Silk_setup_resamplers_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk encoder state FIX */
- SKP_int fs_kHz /* I Internal sampling rate (kHz) */
-)
-{
- SKP_int ret = SKP_SILK_NO_ERROR;
-
- if( psEnc->sCmn.fs_kHz != fs_kHz || psEnc->sCmn.prev_API_fs_Hz != psEnc->sCmn.API_fs_Hz ) {
-
- if( psEnc->sCmn.fs_kHz == 0 ) {
- /* Initialize the resampler for enc_API.c preparing resampling from API_fs_Hz to fs_kHz */
- ret += SKP_Silk_resampler_init( &psEnc->sCmn.resampler_state, psEnc->sCmn.API_fs_Hz, fs_kHz * 1000 );
- } else {
- /* Allocate space for worst case temporary upsampling, 8 to 48 kHz, so a factor 6 */
- SKP_int16 x_buf_API_fs_Hz[ ( 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ) * ( MAX_API_FS_KHZ / 8 ) ];
-
- SKP_int32 nSamples_temp = SKP_LSHIFT( psEnc->sCmn.frame_length, 1 ) + LA_SHAPE_MS * psEnc->sCmn.fs_kHz;
-
- if( SKP_SMULBB( fs_kHz, 1000 ) < psEnc->sCmn.API_fs_Hz && psEnc->sCmn.fs_kHz != 0 ) {
- /* Resample buffered data in x_buf to API_fs_Hz */
-
- SKP_Silk_resampler_state_struct temp_resampler_state;
-
- /* Initialize resampler for temporary resampling of x_buf data to API_fs_Hz */
- ret += SKP_Silk_resampler_init( &temp_resampler_state, SKP_SMULBB( psEnc->sCmn.fs_kHz, 1000 ), psEnc->sCmn.API_fs_Hz );
-
- /* Temporary resampling of x_buf data to API_fs_Hz */
- ret += SKP_Silk_resampler( &temp_resampler_state, x_buf_API_fs_Hz, psEnc->x_buf, nSamples_temp );
-
- /* Calculate number of samples that has been temporarily upsampled */
- nSamples_temp = SKP_DIV32_16( nSamples_temp * psEnc->sCmn.API_fs_Hz, SKP_SMULBB( psEnc->sCmn.fs_kHz, 1000 ) );
-
- /* Initialize the resampler for enc_API.c preparing resampling from API_fs_Hz to fs_kHz */
- ret += SKP_Silk_resampler_init( &psEnc->sCmn.resampler_state, psEnc->sCmn.API_fs_Hz, SKP_SMULBB( fs_kHz, 1000 ) );
-
- } else {
- /* Copy data */
- SKP_memcpy( x_buf_API_fs_Hz, psEnc->x_buf, nSamples_temp * sizeof( SKP_int16 ) );
- }
-
- if( 1000 * fs_kHz != psEnc->sCmn.API_fs_Hz ) {
- /* Correct resampler state (unless resampling by a factor 1) by resampling buffered data from API_fs_Hz to fs_kHz */
- ret += SKP_Silk_resampler( &psEnc->sCmn.resampler_state, psEnc->x_buf, x_buf_API_fs_Hz, nSamples_temp );
- }
- }
- }
-
- psEnc->sCmn.prev_API_fs_Hz = psEnc->sCmn.API_fs_Hz;
-
- return(ret);
-}
-
-SKP_INLINE SKP_int SKP_Silk_setup_packetsize_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk encoder state FIX */
- SKP_int PacketSize_ms /* I Packet length (ms) */
-)
-{
- SKP_int ret = SKP_SILK_NO_ERROR;
-
- /* Set packet size */
- if( ( PacketSize_ms != 20 ) &&
- ( PacketSize_ms != 40 ) &&
- ( PacketSize_ms != 60 ) &&
- ( PacketSize_ms != 80 ) &&
- ( PacketSize_ms != 100 ) ) {
- ret = SKP_SILK_ENC_PACKET_SIZE_NOT_SUPPORTED;
- } else {
- if( PacketSize_ms != psEnc->sCmn.PacketSize_ms ) {
- psEnc->sCmn.PacketSize_ms = PacketSize_ms;
-
- /* Packet length changes. Reset LBRR buffer */
- SKP_Silk_LBRR_reset( &psEnc->sCmn );
- }
- }
- return(ret);
-}
-
-SKP_INLINE SKP_int SKP_Silk_setup_fs_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk encoder state FIX */
- SKP_int fs_kHz /* I Internal sampling rate (kHz) */
-)
-{
- SKP_int ret = SKP_SILK_NO_ERROR;
-
- /* Set internal sampling frequency */
- if( psEnc->sCmn.fs_kHz != fs_kHz ) {
- /* reset part of the state */
- SKP_memset( &psEnc->sShape, 0, sizeof( SKP_Silk_shape_state_FIX ) );
- SKP_memset( &psEnc->sPrefilt, 0, sizeof( SKP_Silk_prefilter_state_FIX ) );
- SKP_memset( &psEnc->sNSQ, 0, sizeof( SKP_Silk_nsq_state ) );
- SKP_memset( &psEnc->sPred, 0, sizeof( SKP_Silk_predict_state_FIX ) );
- SKP_memset( psEnc->sNSQ.xq, 0, ( 2 * MAX_FRAME_LENGTH ) * sizeof( SKP_int16 ) );
- SKP_memset( psEnc->sNSQ_LBRR.xq, 0, ( 2 * MAX_FRAME_LENGTH ) * sizeof( SKP_int16 ) );
- SKP_memset( psEnc->sCmn.LBRR_buffer, 0, MAX_LBRR_DELAY * sizeof( SKP_SILK_LBRR_struct ) );
-#if SWITCH_TRANSITION_FILTERING
- SKP_memset( psEnc->sCmn.sLP.In_LP_State, 0, 2 * sizeof( SKP_int32 ) );
- if( psEnc->sCmn.sLP.mode == 1 ) {
- /* Begin transition phase */
- psEnc->sCmn.sLP.transition_frame_no = 1;
- } else {
- /* End transition phase */
- psEnc->sCmn.sLP.transition_frame_no = 0;
- }
-#endif
- psEnc->sCmn.inputBufIx = 0;
- psEnc->sCmn.nFramesInPayloadBuf = 0;
- psEnc->sCmn.nBytesInPayloadBuf = 0;
- psEnc->sCmn.oldest_LBRR_idx = 0;
- psEnc->sCmn.TargetRate_bps = 0; /* Ensures that psEnc->SNR_dB is recomputed */
-
- SKP_memset( psEnc->sPred.prev_NLSFq_Q15, 0, MAX_LPC_ORDER * sizeof( SKP_int ) );
-
- /* Initialize non-zero parameters */
- psEnc->sCmn.prevLag = 100;
- psEnc->sCmn.prev_sigtype = SIG_TYPE_UNVOICED;
- psEnc->sCmn.first_frame_after_reset = 1;
- psEnc->sPrefilt.lagPrev = 100;
- psEnc->sShape.LastGainIndex = 1;
- psEnc->sNSQ.lagPrev = 100;
- psEnc->sNSQ.prev_inv_gain_Q16 = 65536;
- psEnc->sNSQ_LBRR.prev_inv_gain_Q16 = 65536;
-
- psEnc->sCmn.fs_kHz = fs_kHz;
- if( psEnc->sCmn.fs_kHz == 8 ) {
- psEnc->sCmn.predictLPCOrder = MIN_LPC_ORDER;
- psEnc->sCmn.psNLSF_CB[ 0 ] = &SKP_Silk_NLSF_CB0_10;
- psEnc->sCmn.psNLSF_CB[ 1 ] = &SKP_Silk_NLSF_CB1_10;
- } else {
- psEnc->sCmn.predictLPCOrder = MAX_LPC_ORDER;
- psEnc->sCmn.psNLSF_CB[ 0 ] = &SKP_Silk_NLSF_CB0_16;
- psEnc->sCmn.psNLSF_CB[ 1 ] = &SKP_Silk_NLSF_CB1_16;
- }
- psEnc->sCmn.frame_length = SKP_SMULBB( FRAME_LENGTH_MS, fs_kHz );
- psEnc->sCmn.subfr_length = SKP_DIV32_16( psEnc->sCmn.frame_length, NB_SUBFR );
- psEnc->sCmn.la_pitch = SKP_SMULBB( LA_PITCH_MS, fs_kHz );
- psEnc->sPred.min_pitch_lag = SKP_SMULBB( 3, fs_kHz );
- psEnc->sPred.max_pitch_lag = SKP_SMULBB( 18, fs_kHz );
- psEnc->sPred.pitch_LPC_win_length = SKP_SMULBB( FIND_PITCH_LPC_WIN_MS, fs_kHz );
- if( psEnc->sCmn.fs_kHz == 24 ) {
- psEnc->mu_LTP_Q8 = SKP_FIX_CONST( MU_LTP_QUANT_SWB, 8 );
- psEnc->sCmn.bitrate_threshold_up = SKP_int32_MAX;
- psEnc->sCmn.bitrate_threshold_down = SWB2WB_BITRATE_BPS;
- } else if( psEnc->sCmn.fs_kHz == 16 ) {
- psEnc->mu_LTP_Q8 = SKP_FIX_CONST( MU_LTP_QUANT_WB, 8 );
- psEnc->sCmn.bitrate_threshold_up = WB2SWB_BITRATE_BPS;
- psEnc->sCmn.bitrate_threshold_down = WB2MB_BITRATE_BPS;
- } else if( psEnc->sCmn.fs_kHz == 12 ) {
- psEnc->mu_LTP_Q8 = SKP_FIX_CONST( MU_LTP_QUANT_MB, 8 );
- psEnc->sCmn.bitrate_threshold_up = MB2WB_BITRATE_BPS;
- psEnc->sCmn.bitrate_threshold_down = MB2NB_BITRATE_BPS;
- } else {
- psEnc->mu_LTP_Q8 = SKP_FIX_CONST( MU_LTP_QUANT_NB, 8 );
- psEnc->sCmn.bitrate_threshold_up = NB2MB_BITRATE_BPS;
- psEnc->sCmn.bitrate_threshold_down = 0;
- }
- psEnc->sCmn.fs_kHz_changed = 1;
-
- /* Check that settings are valid */
- SKP_assert( ( psEnc->sCmn.subfr_length * NB_SUBFR ) == psEnc->sCmn.frame_length );
- }
- return( ret );
-}
-
-SKP_INLINE SKP_int SKP_Silk_setup_rate_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk encoder state FIX */
- SKP_int TargetRate_bps /* I Target max bitrate (if SNR_dB == 0) */
-)
-{
- SKP_int k, ret = SKP_SILK_NO_ERROR;
- SKP_int32 frac_Q6;
- const SKP_int32 *rateTable;
-
- /* Set bitrate/coding quality */
- if( TargetRate_bps != psEnc->sCmn.TargetRate_bps ) {
- psEnc->sCmn.TargetRate_bps = TargetRate_bps;
-
- /* If new TargetRate_bps, translate to SNR_dB value */
- if( psEnc->sCmn.fs_kHz == 8 ) {
- rateTable = TargetRate_table_NB;
- } else if( psEnc->sCmn.fs_kHz == 12 ) {
- rateTable = TargetRate_table_MB;
- } else if( psEnc->sCmn.fs_kHz == 16 ) {
- rateTable = TargetRate_table_WB;
- } else {
- rateTable = TargetRate_table_SWB;
- }
- for( k = 1; k < TARGET_RATE_TAB_SZ; k++ ) {
- /* Find bitrate interval in table and interpolate */
- if( TargetRate_bps < rateTable[ k ] ) {
- frac_Q6 = SKP_DIV32( SKP_LSHIFT( TargetRate_bps - rateTable[ k - 1 ], 6 ),
- rateTable[ k ] - rateTable[ k - 1 ] );
- psEnc->SNR_dB_Q7 = SKP_LSHIFT( SNR_table_Q1[ k - 1 ], 6 ) + SKP_MUL( frac_Q6, SNR_table_Q1[ k ] - SNR_table_Q1[ k - 1 ] );
- break;
- }
- }
- }
- return( ret );
-}
-
-SKP_INLINE SKP_int SKP_Silk_setup_LBRR_FIX(
- SKP_Silk_encoder_state_FIX *psEnc /* I/O Pointer to Silk encoder state FIX */
-)
-{
- SKP_int ret = SKP_SILK_NO_ERROR;
-#if USE_LBRR
- SKP_int32 LBRRRate_thres_bps;
-
- if( psEnc->sCmn.useInBandFEC < 0 || psEnc->sCmn.useInBandFEC > 1 ) {
- ret = SKP_SILK_ENC_INVALID_INBAND_FEC_SETTING;
- }
-
- psEnc->sCmn.LBRR_enabled = psEnc->sCmn.useInBandFEC;
- if( psEnc->sCmn.fs_kHz == 8 ) {
- LBRRRate_thres_bps = INBAND_FEC_MIN_RATE_BPS - 9000;
- } else if( psEnc->sCmn.fs_kHz == 12 ) {
- LBRRRate_thres_bps = INBAND_FEC_MIN_RATE_BPS - 6000;;
- } else if( psEnc->sCmn.fs_kHz == 16 ) {
- LBRRRate_thres_bps = INBAND_FEC_MIN_RATE_BPS - 3000;
- } else {
- LBRRRate_thres_bps = INBAND_FEC_MIN_RATE_BPS;
- }
-
- if( psEnc->sCmn.TargetRate_bps >= LBRRRate_thres_bps ) {
- /* Set gain increase / rate reduction for LBRR usage */
- /* Coarsely tuned with PESQ for now. */
- /* Linear regression coefs G = 8 - 0.5 * loss */
- /* Meaning that at 16% loss main rate and redundant rate is the same, -> G = 0 */
- psEnc->sCmn.LBRR_GainIncreases = SKP_max_int( 8 - SKP_RSHIFT( psEnc->sCmn.PacketLoss_perc, 1 ), 0 );
-
- /* Set main stream rate compensation */
- if( psEnc->sCmn.LBRR_enabled && psEnc->sCmn.PacketLoss_perc > LBRR_LOSS_THRES ) {
- /* Tuned to give approx same mean / weighted bitrate as no inband FEC */
- psEnc->inBandFEC_SNR_comp_Q8 = SKP_FIX_CONST( 6.0f, 8 ) - SKP_LSHIFT( psEnc->sCmn.LBRR_GainIncreases, 7 );
- } else {
- psEnc->inBandFEC_SNR_comp_Q8 = 0;
- psEnc->sCmn.LBRR_enabled = 0;
- }
- } else {
- psEnc->inBandFEC_SNR_comp_Q8 = 0;
- psEnc->sCmn.LBRR_enabled = 0;
- }
-#else
- if( INBandFEC_enabled != 0 ) {
- ret = SKP_SILK_ENC_INVALID_INBAND_FEC_SETTING;
- }
- psEnc->sCmn.LBRR_enabled = 0;
-#endif
- return ret;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/**********************************************************************
- * Correlation Matrix Computations for LS estimate.
- **********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-
-/* Calculates correlation vector X'*t */
-void SKP_Silk_corrVector_FIX(
- const SKP_int16 *x, /* I x vector [L + order - 1] used to form data matrix X */
- const SKP_int16 *t, /* I target vector [L] */
- const SKP_int L, /* I Length of vectors */
- const SKP_int order, /* I Max lag for correlation */
- SKP_int32 *Xt, /* O Pointer to X'*t correlation vector [order] */
- const SKP_int rshifts /* I Right shifts of correlations */
-)
-{
- SKP_int lag, i;
- const SKP_int16 *ptr1, *ptr2;
- SKP_int32 inner_prod;
-
- ptr1 = &x[ order - 1 ]; /* Points to first sample of column 0 of X: X[:,0] */
- ptr2 = t;
- /* Calculate X'*t */
- if( rshifts > 0 ) {
- /* Right shifting used */
- for( lag = 0; lag < order; lag++ ) {
- inner_prod = 0;
- for( i = 0; i < L; i++ ) {
- inner_prod += SKP_RSHIFT32( SKP_SMULBB( ptr1[ i ], ptr2[i] ), rshifts );
- }
- Xt[ lag ] = inner_prod; /* X[:,lag]'*t */
- ptr1--; /* Go to next column of X */
- }
- } else {
- SKP_assert( rshifts == 0 );
- for( lag = 0; lag < order; lag++ ) {
- Xt[ lag ] = SKP_Silk_inner_prod_aligned( ptr1, ptr2, L ); /* X[:,lag]'*t */
- ptr1--; /* Go to next column of X */
- }
- }
-}
-
-/* Calculates correlation matrix X'*X */
-void SKP_Silk_corrMatrix_FIX(
- const SKP_int16 *x, /* I x vector [L + order - 1] used to form data matrix X */
- const SKP_int L, /* I Length of vectors */
- const SKP_int order, /* I Max lag for correlation */
- const SKP_int head_room, /* I Desired headroom */
- SKP_int32 *XX, /* O Pointer to X'*X correlation matrix [ order x order ]*/
- SKP_int *rshifts /* I/O Right shifts of correlations */
-)
-{
- SKP_int i, j, lag, rshifts_local, head_room_rshifts;
- SKP_int32 energy;
- const SKP_int16 *ptr1, *ptr2;
-
- /* Calculate energy to find shift used to fit in 32 bits */
- SKP_Silk_sum_sqr_shift( &energy, &rshifts_local, x, L + order - 1 );
-
- /* Add shifts to get the desired head room */
- head_room_rshifts = SKP_max( head_room - SKP_Silk_CLZ32( energy ), 0 );
-
- energy = SKP_RSHIFT32( energy, head_room_rshifts );
- rshifts_local += head_room_rshifts;
-
- /* Calculate energy of first column (0) of X: X[:,0]'*X[:,0] */
- /* Remove contribution of first order - 1 samples */
- for( i = 0; i < order - 1; i++ ) {
- energy -= SKP_RSHIFT32( SKP_SMULBB( x[ i ], x[ i ] ), rshifts_local );
- }
- if( rshifts_local < *rshifts ) {
- /* Adjust energy */
- energy = SKP_RSHIFT32( energy, *rshifts - rshifts_local );
- rshifts_local = *rshifts;
- }
-
- /* Calculate energy of remaining columns of X: X[:,j]'*X[:,j] */
- /* Fill out the diagonal of the correlation matrix */
- matrix_ptr( XX, 0, 0, order ) = energy;
- ptr1 = &x[ order - 1 ]; /* First sample of column 0 of X */
- for( j = 1; j < order; j++ ) {
- energy = SKP_SUB32( energy, SKP_RSHIFT32( SKP_SMULBB( ptr1[ L - j ], ptr1[ L - j ] ), rshifts_local ) );
- energy = SKP_ADD32( energy, SKP_RSHIFT32( SKP_SMULBB( ptr1[ -j ], ptr1[ -j ] ), rshifts_local ) );
- matrix_ptr( XX, j, j, order ) = energy;
- }
-
- ptr2 = &x[ order - 2 ]; /* First sample of column 1 of X */
- /* Calculate the remaining elements of the correlation matrix */
- if( rshifts_local > 0 ) {
- /* Right shifting used */
- for( lag = 1; lag < order; lag++ ) {
- /* Inner product of column 0 and column lag: X[:,0]'*X[:,lag] */
- energy = 0;
- for( i = 0; i < L; i++ ) {
- energy += SKP_RSHIFT32( SKP_SMULBB( ptr1[ i ], ptr2[i] ), rshifts_local );
- }
- /* Calculate remaining off diagonal: X[:,j]'*X[:,j + lag] */
- matrix_ptr( XX, lag, 0, order ) = energy;
- matrix_ptr( XX, 0, lag, order ) = energy;
- for( j = 1; j < ( order - lag ); j++ ) {
- energy = SKP_SUB32( energy, SKP_RSHIFT32( SKP_SMULBB( ptr1[ L - j ], ptr2[ L - j ] ), rshifts_local ) );
- energy = SKP_ADD32( energy, SKP_RSHIFT32( SKP_SMULBB( ptr1[ -j ], ptr2[ -j ] ), rshifts_local ) );
- matrix_ptr( XX, lag + j, j, order ) = energy;
- matrix_ptr( XX, j, lag + j, order ) = energy;
- }
- ptr2--; /* Update pointer to first sample of next column (lag) in X */
- }
- } else {
- for( lag = 1; lag < order; lag++ ) {
- /* Inner product of column 0 and column lag: X[:,0]'*X[:,lag] */
- energy = SKP_Silk_inner_prod_aligned( ptr1, ptr2, L );
- matrix_ptr( XX, lag, 0, order ) = energy;
- matrix_ptr( XX, 0, lag, order ) = energy;
- /* Calculate remaining off diagonal: X[:,j]'*X[:,j + lag] */
- for( j = 1; j < ( order - lag ); j++ ) {
- energy = SKP_SUB32( energy, SKP_SMULBB( ptr1[ L - j ], ptr2[ L - j ] ) );
- energy = SKP_SMLABB( energy, ptr1[ -j ], ptr2[ -j ] );
- matrix_ptr( XX, lag + j, j, order ) = energy;
- matrix_ptr( XX, j, lag + j, order ) = energy;
- }
- ptr2--;/* Update pointer to first sample of next column (lag) in X */
- }
- }
- *rshifts = rshifts_local;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-
-/************************/
-/* Init Decoder State */
-/************************/
-SKP_int SKP_Silk_init_decoder(
- SKP_Silk_decoder_state *psDec /* I/O Decoder state pointer */
-)
-{
- SKP_memset( psDec, 0, sizeof( SKP_Silk_decoder_state ) );
- /* Set sampling rate to 24 kHz, and init non-zero values */
- SKP_Silk_decoder_set_fs( psDec, 24 );
-
- /* Used to deactivate e.g. LSF interpolation and fluctuation reduction */
- psDec->first_frame_after_reset = 1;
- psDec->prev_inv_gain_Q16 = 65536;
-
- /* Reset CNG state */
- SKP_Silk_CNG_Reset( psDec );
-
- SKP_Silk_PLC_Reset( psDec );
-
- return(0);
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_SDK_API.h"
-#include "SKP_Silk_main.h"
-
-/*********************/
-/* Decoder functions */
-/*********************/
-
-SKP_int SKP_Silk_SDK_Get_Decoder_Size( SKP_int32 *decSizeBytes )
-{
- SKP_int ret = 0;
-
- *decSizeBytes = sizeof( SKP_Silk_decoder_state );
-
- return ret;
-}
-
-/* Reset decoder state */
-SKP_int SKP_Silk_SDK_InitDecoder(
- void* decState /* I/O: State */
-)
-{
- SKP_int ret = 0;
- SKP_Silk_decoder_state *struc;
-
- struc = (SKP_Silk_decoder_state *)decState;
-
- ret = SKP_Silk_init_decoder( struc );
-
- return ret;
-}
-
-/* Decode a frame */
-SKP_int SKP_Silk_SDK_Decode(
- void* decState, /* I/O: State */
- SKP_SILK_SDK_DecControlStruct* decControl, /* I/O: Control structure */
- SKP_int lostFlag, /* I: 0: no loss, 1 loss */
- const SKP_uint8 *inData, /* I: Encoded input vector */
- const SKP_int nBytesIn, /* I: Number of input Bytes */
- SKP_int16 *samplesOut, /* O: Decoded output speech vector */
- SKP_int16 *nSamplesOut /* I/O: Number of samples (vector/decoded) */
-)
-{
- SKP_int ret = 0, used_bytes, prev_fs_kHz;
- SKP_Silk_decoder_state *psDec;
- SKP_int16 samplesOutInternal[ MAX_API_FS_KHZ * FRAME_LENGTH_MS ];
- SKP_int16 *pSamplesOutInternal;
-
- psDec = (SKP_Silk_decoder_state *)decState;
-
- /* We need this buffer to have room for an internal frame */
- pSamplesOutInternal = samplesOut;
- if( psDec->fs_kHz * 1000 > decControl->API_sampleRate ) {
- pSamplesOutInternal = samplesOutInternal;
- }
-
- /**********************************/
- /* Test if first frame in payload */
- /**********************************/
- if( psDec->moreInternalDecoderFrames == 0 ) {
- /* First Frame in Payload */
- psDec->nFramesDecoded = 0; /* Used to count frames in packet */
- }
-
- if( psDec->moreInternalDecoderFrames == 0 && /* First frame in packet */
- lostFlag == 0 && /* Not packet loss */
- nBytesIn > MAX_ARITHM_BYTES ) { /* Too long payload */
- /* Avoid trying to decode a too large packet */
- lostFlag = 1;
- ret = SKP_SILK_DEC_PAYLOAD_TOO_LARGE;
- }
-
- /* Save previous sample frequency */
- prev_fs_kHz = psDec->fs_kHz;
-
- /* Call decoder for one frame */
- ret += SKP_Silk_decode_frame( psDec, pSamplesOutInternal, nSamplesOut, inData, nBytesIn,
- lostFlag, &used_bytes );
-
- if( used_bytes ) { /* Only Call if not a packet loss */
- if( psDec->nBytesLeft > 0 && psDec->FrameTermination == SKP_SILK_MORE_FRAMES && psDec->nFramesDecoded < 5 ) {
- /* We have more frames in the Payload */
- psDec->moreInternalDecoderFrames = 1;
- } else {
- /* Last frame in Payload */
- psDec->moreInternalDecoderFrames = 0;
- psDec->nFramesInPacket = psDec->nFramesDecoded;
-
- /* Track inband FEC usage */
- if( psDec->vadFlag == VOICE_ACTIVITY ) {
- if( psDec->FrameTermination == SKP_SILK_LAST_FRAME ) {
- psDec->no_FEC_counter++;
- if( psDec->no_FEC_counter > NO_LBRR_THRES ) {
- psDec->inband_FEC_offset = 0;
- }
- } else if( psDec->FrameTermination == SKP_SILK_LBRR_VER1 ) {
- psDec->inband_FEC_offset = 1; /* FEC info with 1 packet delay */
- psDec->no_FEC_counter = 0;
- } else if( psDec->FrameTermination == SKP_SILK_LBRR_VER2 ) {
- psDec->inband_FEC_offset = 2; /* FEC info with 2 packets delay */
- psDec->no_FEC_counter = 0;
- }
- }
- }
- }
-
- if( MAX_API_FS_KHZ * 1000 < decControl->API_sampleRate ||
- 8000 > decControl->API_sampleRate ) {
- ret = SKP_SILK_DEC_INVALID_SAMPLING_FREQUENCY;
- return( ret );
- }
-
- /* Resample if needed */
- if( psDec->fs_kHz * 1000 != decControl->API_sampleRate ) {
- SKP_int16 samplesOut_tmp[ MAX_API_FS_KHZ * FRAME_LENGTH_MS ];
- SKP_assert( psDec->fs_kHz <= MAX_API_FS_KHZ );
-
- /* Copy to a tmp buffer as the resampling writes to samplesOut */
- SKP_memcpy( samplesOut_tmp, pSamplesOutInternal, *nSamplesOut * sizeof( SKP_int16 ) );
-
- /* (Re-)initialize resampler state when switching internal sampling frequency */
- if( prev_fs_kHz != psDec->fs_kHz || psDec->prev_API_sampleRate != decControl->API_sampleRate ) {
- ret = SKP_Silk_resampler_init( &psDec->resampler_state, SKP_SMULBB( psDec->fs_kHz, 1000 ), decControl->API_sampleRate );
- }
-
- /* Resample the output to API_sampleRate */
- ret += SKP_Silk_resampler( &psDec->resampler_state, samplesOut, samplesOut_tmp, *nSamplesOut );
-
- /* Update the number of output samples */
- *nSamplesOut = SKP_DIV32( ( SKP_int32 )*nSamplesOut * decControl->API_sampleRate, psDec->fs_kHz * 1000 );
- } else if( prev_fs_kHz * 1000 > decControl->API_sampleRate ) {
- SKP_memcpy( samplesOut, pSamplesOutInternal, *nSamplesOut * sizeof( SKP_int16 ) );
- }
-
- psDec->prev_API_sampleRate = decControl->API_sampleRate;
-
- /* Copy all parameters that are needed out of internal structure to the control stucture */
- decControl->frameSize = (SKP_uint16)( decControl->API_sampleRate / 50 ) ;
- decControl->framesPerPacket = ( SKP_int )psDec->nFramesInPacket;
- decControl->inBandFECOffset = ( SKP_int )psDec->inband_FEC_offset;
- decControl->moreInternalDecoderFrames = ( SKP_int )psDec->moreInternalDecoderFrames;
-
- return ret;
-}
-
-/* Function to find LBRR information in a packet */
-void SKP_Silk_SDK_search_for_LBRR(
- const SKP_uint8 *inData, /* I: Encoded input vector */
- const SKP_int nBytesIn, /* I: Number of input Bytes */
- SKP_int lost_offset, /* I: Offset from lost packet */
- SKP_uint8 *LBRRData, /* O: LBRR payload */
- SKP_int16 *nLBRRBytes /* O: Number of LBRR Bytes */
-)
-{
- SKP_Silk_decoder_state sDec; // Local decoder state to avoid interfering with running decoder */
- SKP_Silk_decoder_control sDecCtrl;
- SKP_int TempQ[ MAX_FRAME_LENGTH ];
-
- if( lost_offset < 1 || lost_offset > MAX_LBRR_DELAY ) {
- /* No useful FEC in this packet */
- *nLBRRBytes = 0;
- return;
- }
-
- sDec.nFramesDecoded = 0;
- sDec.fs_kHz = 0; /* Force update parameters LPC_order etc */
- sDec.lossCnt = 0; /* Avoid running bw expansion of the LPC parameters when searching for LBRR data */
- SKP_memset( sDec.prevNLSF_Q15, 0, MAX_LPC_ORDER * sizeof( SKP_int ) );
- SKP_Silk_range_dec_init( &sDec.sRC, inData, ( SKP_int32 )nBytesIn );
-
- while(1) {
- SKP_Silk_decode_parameters( &sDec, &sDecCtrl, TempQ, 0 );
-
- if( sDec.sRC.error ) {
- /* Corrupt stream */
- *nLBRRBytes = 0;
- return;
- };
- if( ( sDec.FrameTermination - 1 ) & lost_offset && sDec.FrameTermination > 0 && sDec.nBytesLeft >= 0 ) {
- /* The wanted FEC is present in the packet */
- *nLBRRBytes = sDec.nBytesLeft;
- SKP_memcpy( LBRRData, &inData[ nBytesIn - sDec.nBytesLeft ], sDec.nBytesLeft * sizeof( SKP_uint8 ) );
- break;
- }
- if( sDec.nBytesLeft > 0 && sDec.FrameTermination == SKP_SILK_MORE_FRAMES ) {
- sDec.nFramesDecoded++;
- } else {
- LBRRData = NULL;
- *nLBRRBytes = 0;
- break;
- }
- }
-}
-
-/* Getting type of content for a packet */
-void SKP_Silk_SDK_get_TOC(
- const SKP_uint8 *inData, /* I: Encoded input vector */
- const SKP_int nBytesIn, /* I: Number of input bytes */
- SKP_Silk_TOC_struct *Silk_TOC /* O: Type of content */
-)
-{
- SKP_Silk_decoder_state sDec; // Local Decoder state to avoid interfering with running decoder */
- SKP_Silk_decoder_control sDecCtrl;
- SKP_int TempQ[ MAX_FRAME_LENGTH ];
-
- sDec.nFramesDecoded = 0;
- sDec.fs_kHz = 0; /* Force update parameters LPC_order etc */
- SKP_Silk_range_dec_init( &sDec.sRC, inData, ( SKP_int32 )nBytesIn );
-
- Silk_TOC->corrupt = 0;
- while( 1 ) {
- SKP_Silk_decode_parameters( &sDec, &sDecCtrl, TempQ, 0 );
-
- Silk_TOC->vadFlags[ sDec.nFramesDecoded ] = sDec.vadFlag;
- Silk_TOC->sigtypeFlags[ sDec.nFramesDecoded ] = sDecCtrl.sigtype;
-
- if( sDec.sRC.error ) {
- /* Corrupt stream */
- Silk_TOC->corrupt = 1;
- break;
- };
-
- if( sDec.nBytesLeft > 0 && sDec.FrameTermination == SKP_SILK_MORE_FRAMES ) {
- sDec.nFramesDecoded++;
- } else {
- break;
- }
- }
- if( Silk_TOC->corrupt || sDec.FrameTermination == SKP_SILK_MORE_FRAMES ||
- sDec.nFramesInPacket > SILK_MAX_FRAMES_PER_PACKET ) {
- /* Corrupt packet */
- SKP_memset( Silk_TOC, 0, sizeof( SKP_Silk_TOC_struct ) );
- Silk_TOC->corrupt = 1;
- } else {
- Silk_TOC->framesInPacket = sDec.nFramesDecoded + 1;
- Silk_TOC->fs_kHz = sDec.fs_kHz;
- if( sDec.FrameTermination == SKP_SILK_LAST_FRAME ) {
- Silk_TOC->inbandLBRR = sDec.FrameTermination;
- } else {
- Silk_TOC->inbandLBRR = sDec.FrameTermination - 1;
- }
- }
-}
-
-/**************************/
-/* Get the version number */
-/**************************/
-/* Return a pointer to string specifying the version */
-const char *SKP_Silk_SDK_get_version()
-{
- static const char version[] = "1.0.8";
- return version;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-
-void SKP_Silk_decode_short_term_prediction(
-SKP_int32 *vec_Q10,
-SKP_int32 *pres_Q10,
-SKP_int32 *sLPC_Q14,
-SKP_int16 *A_Q12_tmp,
-SKP_int LPC_order,
-SKP_int subfr_length
-);
-
-
-/**********************************************************/
-/* Core decoder. Performs inverse NSQ operation LTP + LPC */
-/**********************************************************/
-void SKP_Silk_decode_core(
- SKP_Silk_decoder_state *psDec, /* I/O Decoder state */
- SKP_Silk_decoder_control *psDecCtrl, /* I Decoder control */
- SKP_int16 xq[], /* O Decoded speech */
- const SKP_int q[ MAX_FRAME_LENGTH ] /* I Pulse signal */
-)
-{
- SKP_int i, k, lag = 0, start_idx, sLTP_buf_idx, NLSF_interpolation_flag, sigtype, LTP_scale_Q14;
- SKP_int16 *A_Q12, *B_Q14, *pxq, A_Q12_tmp[ MAX_LPC_ORDER ];
- SKP_int16 sLTP[ MAX_FRAME_LENGTH ];
- SKP_int32 LTP_pred_Q14, Gain_Q16, inv_gain_Q16, inv_gain_Q32, gain_adj_Q16, rand_seed, offset_Q10, dither;
- SKP_int32 *pred_lag_ptr, *pexc_Q10, *pres_Q10;
- SKP_int32 vec_Q10[ MAX_FRAME_LENGTH / NB_SUBFR ];
- SKP_int32 FiltState[ MAX_LPC_ORDER ];
-
- SKP_assert( psDec->prev_inv_gain_Q16 != 0 );
-
- offset_Q10 = SKP_Silk_Quantization_Offsets_Q10[ psDecCtrl->sigtype ][ psDecCtrl->QuantOffsetType ];
-
- if( psDecCtrl->NLSFInterpCoef_Q2 < ( 1 << 2 ) ) {
- NLSF_interpolation_flag = 1;
- } else {
- NLSF_interpolation_flag = 0;
- }
-
-
- /* Decode excitation */
- rand_seed = psDecCtrl->Seed;
- for( i = 0; i < psDec->frame_length; i++ ) {
- rand_seed = SKP_RAND( rand_seed );
- /* dither = rand_seed < 0 ? 0xFFFFFFFF : 0; */
- dither = SKP_RSHIFT( rand_seed, 31 );
-
- psDec->exc_Q10[ i ] = SKP_LSHIFT( ( SKP_int32 )q[ i ], 10 ) + offset_Q10;
- psDec->exc_Q10[ i ] = ( psDec->exc_Q10[ i ] ^ dither ) - dither;
-
- rand_seed += q[ i ];
- }
-
-
- pexc_Q10 = psDec->exc_Q10;
- pres_Q10 = psDec->res_Q10;
- pxq = &psDec->outBuf[ psDec->frame_length ];
- sLTP_buf_idx = psDec->frame_length;
- /* Loop over subframes */
- for( k = 0; k < NB_SUBFR; k++ ) {
- A_Q12 = psDecCtrl->PredCoef_Q12[ k >> 1 ];
-
- /* Preload LPC coeficients to array on stack. Gives small performance gain */
- SKP_memcpy( A_Q12_tmp, A_Q12, psDec->LPC_order * sizeof( SKP_int16 ) );
- B_Q14 = &psDecCtrl->LTPCoef_Q14[ k * LTP_ORDER ];
- Gain_Q16 = psDecCtrl->Gains_Q16[ k ];
- LTP_scale_Q14 = psDecCtrl->LTP_scale_Q14;
- sigtype = psDecCtrl->sigtype;
-
- inv_gain_Q16 = SKP_INVERSE32_varQ( SKP_max( Gain_Q16, 1 ), 32 );
- inv_gain_Q16 = SKP_min( inv_gain_Q16, SKP_int16_MAX );
-
- /* Calculate Gain adjustment factor */
- gain_adj_Q16 = ( SKP_int32 )1 << 16;
- if( inv_gain_Q16 != psDec->prev_inv_gain_Q16 ) {
- gain_adj_Q16 = SKP_DIV32_varQ( inv_gain_Q16, psDec->prev_inv_gain_Q16, 16 );
- }
-
- /* Avoid abrupt transition from voiced PLC to unvoiced normal decoding */
- if( psDec->lossCnt && psDec->prev_sigtype == SIG_TYPE_VOICED &&
- psDecCtrl->sigtype == SIG_TYPE_UNVOICED && k < ( NB_SUBFR >> 1 ) ) {
-
- SKP_memset( B_Q14, 0, LTP_ORDER * sizeof( SKP_int16 ) );
- B_Q14[ LTP_ORDER/2 ] = ( SKP_int16 )1 << 12; /* 0.25 */
-
- sigtype = SIG_TYPE_VOICED;
- psDecCtrl->pitchL[ k ] = psDec->lagPrev;
- LTP_scale_Q14 = ( SKP_int )1 << 14;
- }
-
- if( sigtype == SIG_TYPE_VOICED ) {
- /* Voiced */
-
- lag = psDecCtrl->pitchL[ k ];
- /* Re-whitening */
- if( ( k & ( 3 - SKP_LSHIFT( NLSF_interpolation_flag, 1 ) ) ) == 0 ) {
- /* Rewhiten with new A coefs */
- start_idx = psDec->frame_length - lag - psDec->LPC_order - LTP_ORDER / 2;
- SKP_assert( start_idx >= 0 );
- SKP_assert( start_idx <= psDec->frame_length - psDec->LPC_order );
-
- SKP_memset( FiltState, 0, psDec->LPC_order * sizeof( SKP_int32 ) ); /* Not really necessary, but Valgrind and Coverity will complain otherwise */
- SKP_Silk_MA_Prediction( &psDec->outBuf[ start_idx + k * ( psDec->frame_length >> 2 ) ],
- A_Q12, FiltState, sLTP + start_idx, psDec->frame_length - start_idx, psDec->LPC_order );
-
- /* After rewhitening the LTP state is unscaled */
- inv_gain_Q32 = SKP_LSHIFT( inv_gain_Q16, 16 );
- if( k == 0 ) {
- /* Do LTP downscaling */
- inv_gain_Q32 = SKP_LSHIFT( SKP_SMULWB( inv_gain_Q32, psDecCtrl->LTP_scale_Q14 ), 2 );
- }
- for( i = 0; i < (lag + LTP_ORDER/2); i++ ) {
- psDec->sLTP_Q16[ sLTP_buf_idx - i - 1 ] = SKP_SMULWB( inv_gain_Q32, sLTP[ psDec->frame_length - i - 1 ] );
- }
- } else {
- /* Update LTP state when Gain changes */
- if( gain_adj_Q16 != ( SKP_int32 )1 << 16 ) {
- for( i = 0; i < ( lag + LTP_ORDER / 2 ); i++ ) {
- psDec->sLTP_Q16[ sLTP_buf_idx - i - 1 ] = SKP_SMULWW( gain_adj_Q16, psDec->sLTP_Q16[ sLTP_buf_idx - i - 1 ] );
- }
- }
- }
- }
-
- /* Scale short term state */
- for( i = 0; i < MAX_LPC_ORDER; i++ ) {
- psDec->sLPC_Q14[ i ] = SKP_SMULWW( gain_adj_Q16, psDec->sLPC_Q14[ i ] );
- }
-
- /* Save inv_gain */
- SKP_assert( inv_gain_Q16 != 0 );
- psDec->prev_inv_gain_Q16 = inv_gain_Q16;
-
- /* Long-term prediction */
- if( sigtype == SIG_TYPE_VOICED ) {
- /* Setup pointer */
- pred_lag_ptr = &psDec->sLTP_Q16[ sLTP_buf_idx - lag + LTP_ORDER / 2 ];
- for( i = 0; i < psDec->subfr_length; i++ ) {
- /* Unrolled loop */
- LTP_pred_Q14 = SKP_SMULWB( pred_lag_ptr[ 0 ], B_Q14[ 0 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -1 ], B_Q14[ 1 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -2 ], B_Q14[ 2 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -3 ], B_Q14[ 3 ] );
- LTP_pred_Q14 = SKP_SMLAWB( LTP_pred_Q14, pred_lag_ptr[ -4 ], B_Q14[ 4 ] );
- pred_lag_ptr++;
-
- /* Generate LPC residual */
- pres_Q10[ i ] = SKP_ADD32( pexc_Q10[ i ], SKP_RSHIFT_ROUND( LTP_pred_Q14, 4 ) );
-
- /* Update states */
- psDec->sLTP_Q16[ sLTP_buf_idx ] = SKP_LSHIFT( pres_Q10[ i ], 6 );
- sLTP_buf_idx++;
- }
- } else {
- SKP_memcpy( pres_Q10, pexc_Q10, psDec->subfr_length * sizeof( SKP_int32 ) );
- }
-
- SKP_Silk_decode_short_term_prediction(vec_Q10, pres_Q10, psDec->sLPC_Q14,A_Q12_tmp,psDec->LPC_order,psDec->subfr_length);
-
- /* Scale with Gain */
- for( i = 0; i < psDec->subfr_length; i++ ) {
- pxq[ i ] = ( SKP_int16 )SKP_SAT16( SKP_RSHIFT_ROUND( SKP_SMULWW( vec_Q10[ i ], Gain_Q16 ), 10 ) );
- }
-
- /* Update LPC filter state */
- SKP_memcpy( psDec->sLPC_Q14, &psDec->sLPC_Q14[ psDec->subfr_length ], MAX_LPC_ORDER * sizeof( SKP_int32 ) );
- pexc_Q10 += psDec->subfr_length;
- pres_Q10 += psDec->subfr_length;
- pxq += psDec->subfr_length;
- }
-
- /* Copy to output */
- SKP_memcpy( xq, &psDec->outBuf[ psDec->frame_length ], psDec->frame_length * sizeof( SKP_int16 ) );
-
-}
-
-void SKP_Silk_decode_short_term_prediction(
-SKP_int32 *vec_Q10,
-SKP_int32 *pres_Q10,
-SKP_int32 *sLPC_Q14,
-SKP_int16 *A_Q12_tmp,
-SKP_int LPC_order,
-SKP_int subfr_length
-)
-{
- SKP_int i;
- SKP_int32 LPC_pred_Q10;
- SKP_int j;
- for( i = 0; i < subfr_length; i++ ) {
- /* Partially unrolled */
- LPC_pred_Q10 = SKP_SMULWB( sLPC_Q14[ MAX_LPC_ORDER + i - 1 ], A_Q12_tmp[ 0 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, sLPC_Q14[ MAX_LPC_ORDER + i - 2 ], A_Q12_tmp[ 1 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, sLPC_Q14[ MAX_LPC_ORDER + i - 3 ], A_Q12_tmp[ 2 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, sLPC_Q14[ MAX_LPC_ORDER + i - 4 ], A_Q12_tmp[ 3 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, sLPC_Q14[ MAX_LPC_ORDER + i - 5 ], A_Q12_tmp[ 4 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, sLPC_Q14[ MAX_LPC_ORDER + i - 6 ], A_Q12_tmp[ 5 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, sLPC_Q14[ MAX_LPC_ORDER + i - 7 ], A_Q12_tmp[ 6 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, sLPC_Q14[ MAX_LPC_ORDER + i - 8 ], A_Q12_tmp[ 7 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, sLPC_Q14[ MAX_LPC_ORDER + i - 9 ], A_Q12_tmp[ 8 ] );
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, sLPC_Q14[ MAX_LPC_ORDER + i - 10 ], A_Q12_tmp[ 9 ] );
-
- for( j = 10; j < LPC_order; j ++ ) {
- LPC_pred_Q10 = SKP_SMLAWB( LPC_pred_Q10, sLPC_Q14[ MAX_LPC_ORDER + i - j - 1 ], A_Q12_tmp[ j ] );
- }
-
- /* Add prediction to LPC residual */
- vec_Q10[ i ] = SKP_ADD32( pres_Q10[ i ], LPC_pred_Q10 );
-
- /* Update states */
- sLPC_Q14[ MAX_LPC_ORDER + i ] = SKP_LSHIFT( vec_Q10[ i ], 4 );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-
-#include "SKP_Silk_main.h"
-#include "SKP_Silk_PLC.h"
-
-/****************/
-/* Decode frame */
-/****************/
-SKP_int SKP_Silk_decode_frame(
- SKP_Silk_decoder_state *psDec, /* I/O Pointer to Silk decoder state */
- SKP_int16 pOut[], /* O Pointer to output speech frame */
- SKP_int16 *pN, /* O Pointer to size of output frame */
- const SKP_uint8 pCode[], /* I Pointer to payload */
- const SKP_int nBytes, /* I Payload length */
- SKP_int action, /* I Action from Jitter Buffer */
- SKP_int *decBytes /* O Used bytes to decode this frame */
-)
-{
- SKP_Silk_decoder_control sDecCtrl;
- SKP_int L, fs_Khz_old, LPC_order_old, ret = 0;
- SKP_int Pulses[ MAX_FRAME_LENGTH ];
-
-
- L = psDec->frame_length;
- sDecCtrl.LTP_scale_Q14 = 0;
-
- /* Safety checks */
- SKP_assert( L > 0 && L <= MAX_FRAME_LENGTH );
-
- /********************************************/
- /* Decode Frame if packet is not lost */
- /********************************************/
- *decBytes = 0;
- if( action == 0 ) {
- /********************************************/
- /* Initialize arithmetic coder */
- /********************************************/
- fs_Khz_old = psDec->fs_kHz;
- LPC_order_old = psDec->LPC_order;
- if( psDec->nFramesDecoded == 0 ) {
- /* Initialize range decoder state */
- SKP_Silk_range_dec_init( &psDec->sRC, pCode, nBytes );
- }
-
- /********************************************/
- /* Decode parameters and pulse signal */
- /********************************************/
- SKP_Silk_decode_parameters( psDec, &sDecCtrl, Pulses, 1 );
-
-
- if( psDec->sRC.error ) {
- psDec->nBytesLeft = 0;
-
- action = 1; /* PLC operation */
- /* revert fs if changed in decode_parameters */
- SKP_Silk_decoder_set_fs( psDec, fs_Khz_old );
-
- /* Avoid crashing */
- *decBytes = psDec->sRC.bufferLength;
-
- if( psDec->sRC.error == RANGE_CODER_DEC_PAYLOAD_TOO_LONG ) {
- ret = SKP_SILK_DEC_PAYLOAD_TOO_LARGE;
- } else {
- ret = SKP_SILK_DEC_PAYLOAD_ERROR;
- }
- } else {
- *decBytes = psDec->sRC.bufferLength - psDec->nBytesLeft;
- psDec->nFramesDecoded++;
-
- /* Update lengths. Sampling frequency could have changed */
- L = psDec->frame_length;
-
- /********************************************************/
- /* Run inverse NSQ */
- /********************************************************/
- SKP_Silk_decode_core( psDec, &sDecCtrl, pOut, Pulses );
-
- /********************************************************/
- /* Update PLC state */
- /********************************************************/
- SKP_Silk_PLC( psDec, &sDecCtrl, pOut, L, action );
-
- psDec->lossCnt = 0;
- psDec->prev_sigtype = sDecCtrl.sigtype;
-
- /* A frame has been decoded without errors */
- psDec->first_frame_after_reset = 0;
- }
- }
- /*************************************************************/
- /* Generate Concealment frame if packet is lost, or corrupt */
- /*************************************************************/
- if( action == 1 ) {
- /* Handle packet loss by extrapolation */
- SKP_Silk_PLC( psDec, &sDecCtrl, pOut, L, action );
- }
-
- /*************************/
- /* Update output buffer. */
- /*************************/
- SKP_memcpy( psDec->outBuf, pOut, L * sizeof( SKP_int16 ) );
-
- /****************************************************************/
- /* Ensure smooth connection of extrapolated and good frames */
- /****************************************************************/
- SKP_Silk_PLC_glue_frames( psDec, &sDecCtrl, pOut, L );
-
- /************************************************/
- /* Comfort noise generation / estimation */
- /************************************************/
- SKP_Silk_CNG( psDec, &sDecCtrl, pOut , L );
-
- /********************************************/
- /* HP filter output */
- /********************************************/
- SKP_assert( ( ( psDec->fs_kHz == 12 ) && ( L % 3 ) == 0 ) ||
- ( ( psDec->fs_kHz != 12 ) && ( L % 2 ) == 0 ) );
- SKP_Silk_biquad( pOut, psDec->HP_B, psDec->HP_A, psDec->HPState, pOut, L );
-
- /********************************************/
- /* set output frame length */
- /********************************************/
- *pN = ( SKP_int16 )L;
-
- /* Update some decoder state variables */
- psDec->lagPrev = sDecCtrl.pitchL[ NB_SUBFR - 1 ];
-
-
- return ret;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-/* Decode parameters from payload */
-void SKP_Silk_decode_parameters(
- SKP_Silk_decoder_state *psDec, /* I/O State */
- SKP_Silk_decoder_control *psDecCtrl, /* I/O Decoder control */
- SKP_int q[], /* O Excitation signal */
- const SKP_int fullDecoding /* I Flag to tell if only arithmetic decoding */
-)
-{
- SKP_int i, k, Ix, fs_kHz_dec, nBytesUsed;
- SKP_int Ixs[ NB_SUBFR ];
- SKP_int GainsIndices[ NB_SUBFR ];
- SKP_int NLSFIndices[ NLSF_MSVQ_MAX_CB_STAGES ];
- SKP_int pNLSF_Q15[ MAX_LPC_ORDER ], pNLSF0_Q15[ MAX_LPC_ORDER ];
- const SKP_int16 *cbk_ptr_Q14;
- const SKP_Silk_NLSF_CB_struct *psNLSF_CB = NULL;
- SKP_Silk_range_coder_state *psRC = &psDec->sRC;
-
- /************************/
- /* Decode sampling rate */
- /************************/
- /* only done for first frame of packet */
- if( psDec->nFramesDecoded == 0 ) {
- SKP_Silk_range_decoder( &Ix, psRC, SKP_Silk_SamplingRates_CDF, SKP_Silk_SamplingRates_offset );
-
- /* check that sampling rate is supported */
- if( Ix < 0 || Ix > 3 ) {
- psRC->error = RANGE_CODER_ILLEGAL_SAMPLING_RATE;
- return;
- }
- fs_kHz_dec = SKP_Silk_SamplingRates_table[ Ix ];
- SKP_Silk_decoder_set_fs( psDec, fs_kHz_dec );
- }
-
- /*******************************************/
- /* Decode signal type and quantizer offset */
- /*******************************************/
- if( psDec->nFramesDecoded == 0 ) {
- /* first frame in packet: independent coding */
- SKP_Silk_range_decoder( &Ix, psRC, SKP_Silk_type_offset_CDF, SKP_Silk_type_offset_CDF_offset );
- } else {
- /* condidtional coding */
- SKP_Silk_range_decoder( &Ix, psRC, SKP_Silk_type_offset_joint_CDF[ psDec->typeOffsetPrev ],
- SKP_Silk_type_offset_CDF_offset );
- }
- psDecCtrl->sigtype = SKP_RSHIFT( Ix, 1 );
- psDecCtrl->QuantOffsetType = Ix & 1;
- psDec->typeOffsetPrev = Ix;
-
- /****************/
- /* Decode gains */
- /****************/
- /* first subframe */
- if( psDec->nFramesDecoded == 0 ) {
- /* first frame in packet: independent coding */
- SKP_Silk_range_decoder( &GainsIndices[ 0 ], psRC, SKP_Silk_gain_CDF[ psDecCtrl->sigtype ], SKP_Silk_gain_CDF_offset );
- } else {
- /* condidtional coding */
- SKP_Silk_range_decoder( &GainsIndices[ 0 ], psRC, SKP_Silk_delta_gain_CDF, SKP_Silk_delta_gain_CDF_offset );
- }
-
- /* remaining subframes */
- for( i = 1; i < NB_SUBFR; i++ ) {
- SKP_Silk_range_decoder( &GainsIndices[ i ], psRC, SKP_Silk_delta_gain_CDF, SKP_Silk_delta_gain_CDF_offset );
- }
-
- /* Dequant Gains */
- SKP_Silk_gains_dequant( psDecCtrl->Gains_Q16, GainsIndices, &psDec->LastGainIndex, psDec->nFramesDecoded );
- /****************/
- /* Decode NLSFs */
- /****************/
- /* Set pointer to NLSF VQ CB for the current signal type */
- psNLSF_CB = psDec->psNLSF_CB[ psDecCtrl->sigtype ];
-
- /* Range decode NLSF path */
- SKP_Silk_range_decoder_multi( NLSFIndices, psRC, psNLSF_CB->StartPtr, psNLSF_CB->MiddleIx, psNLSF_CB->nStages );
-
- /* From the NLSF path, decode an NLSF vector */
- SKP_Silk_NLSF_MSVQ_decode( pNLSF_Q15, psNLSF_CB, NLSFIndices, psDec->LPC_order );
-
- /************************************/
- /* Decode NLSF interpolation factor */
- /************************************/
- SKP_Silk_range_decoder( &psDecCtrl->NLSFInterpCoef_Q2, psRC, SKP_Silk_NLSF_interpolation_factor_CDF,
- SKP_Silk_NLSF_interpolation_factor_offset );
-
- /* If just reset, e.g., because internal Fs changed, do not allow interpolation */
- /* improves the case of packet loss in the first frame after a switch */
- if( psDec->first_frame_after_reset == 1 ) {
- psDecCtrl->NLSFInterpCoef_Q2 = 4;
- }
-
- if( fullDecoding ) {
- /* Convert NLSF parameters to AR prediction filter coefficients */
- SKP_Silk_NLSF2A_stable( psDecCtrl->PredCoef_Q12[ 1 ], pNLSF_Q15, psDec->LPC_order );
-
- if( psDecCtrl->NLSFInterpCoef_Q2 < 4 ) {
- /* Calculation of the interpolated NLSF0 vector from the interpolation factor, */
- /* the previous NLSF1, and the current NLSF1 */
- for( i = 0; i < psDec->LPC_order; i++ ) {
- pNLSF0_Q15[ i ] = psDec->prevNLSF_Q15[ i ] + SKP_RSHIFT( SKP_MUL( psDecCtrl->NLSFInterpCoef_Q2,
- ( pNLSF_Q15[ i ] - psDec->prevNLSF_Q15[ i ] ) ), 2 );
- }
-
- /* Convert NLSF parameters to AR prediction filter coefficients */
- SKP_Silk_NLSF2A_stable( psDecCtrl->PredCoef_Q12[ 0 ], pNLSF0_Q15, psDec->LPC_order );
- } else {
- /* Copy LPC coefficients for first half from second half */
- SKP_memcpy( psDecCtrl->PredCoef_Q12[ 0 ], psDecCtrl->PredCoef_Q12[ 1 ],
- psDec->LPC_order * sizeof( SKP_int16 ) );
- }
- }
-
- SKP_memcpy( psDec->prevNLSF_Q15, pNLSF_Q15, psDec->LPC_order * sizeof( SKP_int ) );
-
- /* After a packet loss do BWE of LPC coefs */
- if( psDec->lossCnt ) {
- SKP_Silk_bwexpander( psDecCtrl->PredCoef_Q12[ 0 ], psDec->LPC_order, BWE_AFTER_LOSS_Q16 );
- SKP_Silk_bwexpander( psDecCtrl->PredCoef_Q12[ 1 ], psDec->LPC_order, BWE_AFTER_LOSS_Q16 );
- }
-
- if( psDecCtrl->sigtype == SIG_TYPE_VOICED ) {
- /*********************/
- /* Decode pitch lags */
- /*********************/
- /* Get lag index */
- if( psDec->fs_kHz == 8 ) {
- SKP_Silk_range_decoder( &Ixs[ 0 ], psRC, SKP_Silk_pitch_lag_NB_CDF, SKP_Silk_pitch_lag_NB_CDF_offset );
- } else if( psDec->fs_kHz == 12 ) {
- SKP_Silk_range_decoder( &Ixs[ 0 ], psRC, SKP_Silk_pitch_lag_MB_CDF, SKP_Silk_pitch_lag_MB_CDF_offset );
- } else if( psDec->fs_kHz == 16 ) {
- SKP_Silk_range_decoder( &Ixs[ 0 ], psRC, SKP_Silk_pitch_lag_WB_CDF, SKP_Silk_pitch_lag_WB_CDF_offset );
- } else {
- SKP_Silk_range_decoder( &Ixs[ 0 ], psRC, SKP_Silk_pitch_lag_SWB_CDF, SKP_Silk_pitch_lag_SWB_CDF_offset );
- }
-
- /* Get countour index */
- if( psDec->fs_kHz == 8 ) {
- /* Less codevectors used in 8 khz mode */
- SKP_Silk_range_decoder( &Ixs[ 1 ], psRC, SKP_Silk_pitch_contour_NB_CDF, SKP_Silk_pitch_contour_NB_CDF_offset );
- } else {
- /* Joint for 12, 16, and 24 khz */
- SKP_Silk_range_decoder( &Ixs[ 1 ], psRC, SKP_Silk_pitch_contour_CDF, SKP_Silk_pitch_contour_CDF_offset );
- }
-
- /* Decode pitch values */
- SKP_Silk_decode_pitch( Ixs[ 0 ], Ixs[ 1 ], psDecCtrl->pitchL, psDec->fs_kHz );
-
- /********************/
- /* Decode LTP gains */
- /********************/
- /* Decode PERIndex value */
- SKP_Silk_range_decoder( &psDecCtrl->PERIndex, psRC, SKP_Silk_LTP_per_index_CDF,
- SKP_Silk_LTP_per_index_CDF_offset );
-
- /* Decode Codebook Index */
- cbk_ptr_Q14 = SKP_Silk_LTP_vq_ptrs_Q14[ psDecCtrl->PERIndex ]; /* set pointer to start of codebook */
-
- for( k = 0; k < NB_SUBFR; k++ ) {
- SKP_Silk_range_decoder( &Ix, psRC, SKP_Silk_LTP_gain_CDF_ptrs[ psDecCtrl->PERIndex ],
- SKP_Silk_LTP_gain_CDF_offsets[ psDecCtrl->PERIndex ] );
-
- for( i = 0; i < LTP_ORDER; i++ ) {
- psDecCtrl->LTPCoef_Q14[ k * LTP_ORDER + i ] = cbk_ptr_Q14[ Ix * LTP_ORDER + i ];
- }
- }
-
- /**********************/
- /* Decode LTP scaling */
- /**********************/
- SKP_Silk_range_decoder( &Ix, psRC, SKP_Silk_LTPscale_CDF, SKP_Silk_LTPscale_offset );
- psDecCtrl->LTP_scale_Q14 = SKP_Silk_LTPScales_table_Q14[ Ix ];
- } else {
- SKP_assert( psDecCtrl->sigtype == SIG_TYPE_UNVOICED );
- SKP_memset( psDecCtrl->pitchL, 0, NB_SUBFR * sizeof( SKP_int ) );
- SKP_memset( psDecCtrl->LTPCoef_Q14, 0, LTP_ORDER * NB_SUBFR * sizeof( SKP_int16 ) );
- psDecCtrl->PERIndex = 0;
- psDecCtrl->LTP_scale_Q14 = 0;
- }
-
- /***************/
- /* Decode seed */
- /***************/
- SKP_Silk_range_decoder( &Ix, psRC, SKP_Silk_Seed_CDF, SKP_Silk_Seed_offset );
- psDecCtrl->Seed = ( SKP_int32 )Ix;
- /*********************************************/
- /* Decode quantization indices of excitation */
- /*********************************************/
- SKP_Silk_decode_pulses( psRC, psDecCtrl, q, psDec->frame_length );
-
- /*********************************************/
- /* Decode VAD flag */
- /*********************************************/
- SKP_Silk_range_decoder( &psDec->vadFlag, psRC, SKP_Silk_vadflag_CDF, SKP_Silk_vadflag_offset );
-
- /**************************************/
- /* Decode Frame termination indicator */
- /**************************************/
- SKP_Silk_range_decoder( &psDec->FrameTermination, psRC, SKP_Silk_FrameTermination_CDF, SKP_Silk_FrameTermination_offset );
-
- /****************************************/
- /* get number of bytes used so far */
- /****************************************/
- SKP_Silk_range_coder_get_length( psRC, &nBytesUsed );
- psDec->nBytesLeft = psRC->bufferLength - nBytesUsed;
- if( psDec->nBytesLeft < 0 ) {
- psRC->error = RANGE_CODER_READ_BEYOND_BUFFER;
- }
-
- /****************************************/
- /* check remaining bits in last byte */
- /****************************************/
- if( psDec->nBytesLeft == 0 ) {
- SKP_Silk_range_coder_check_after_decoding( psRC );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/***********************************************************
-* Pitch analyser function
-********************************************************** */
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_common_pitch_est_defines.h"
-
-void SKP_Silk_decode_pitch(
- SKP_int lagIndex, /* I */
- SKP_int contourIndex, /* O */
- SKP_int pitch_lags[], /* O 4 pitch values */
- SKP_int Fs_kHz /* I sampling frequency (kHz) */
-)
-{
- SKP_int lag, i, min_lag;
-
- min_lag = SKP_SMULBB( PITCH_EST_MIN_LAG_MS, Fs_kHz );
-
- /* Only for 24 / 16 kHz version for now */
- lag = min_lag + lagIndex;
- if( Fs_kHz == 8 ) {
- /* Only a small codebook for 8 khz */
- for( i = 0; i < PITCH_EST_NB_SUBFR; i++ ) {
- pitch_lags[ i ] = lag + SKP_Silk_CB_lags_stage2[ i ][ contourIndex ];
- }
- } else {
- for( i = 0; i < PITCH_EST_NB_SUBFR; i++ ) {
- pitch_lags[ i ] = lag + SKP_Silk_CB_lags_stage3[ i ][ contourIndex ];
- }
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-/*********************************************/
-/* Decode quantization indices of excitation */
-/*********************************************/
-void SKP_Silk_decode_pulses(
- SKP_Silk_range_coder_state *psRC, /* I/O Range coder state */
- SKP_Silk_decoder_control *psDecCtrl, /* I/O Decoder control */
- SKP_int q[], /* O Excitation signal */
- const SKP_int frame_length /* I Frame length (preliminary) */
-)
-{
- SKP_int i, j, k, iter, abs_q, nLS, bit;
- SKP_int sum_pulses[ MAX_NB_SHELL_BLOCKS ], nLshifts[ MAX_NB_SHELL_BLOCKS ];
- SKP_int *pulses_ptr;
- const SKP_uint16 *cdf_ptr;
-
- /*********************/
- /* Decode rate level */
- /*********************/
- SKP_Silk_range_decoder( &psDecCtrl->RateLevelIndex, psRC,
- SKP_Silk_rate_levels_CDF[ psDecCtrl->sigtype ], SKP_Silk_rate_levels_CDF_offset );
-
- /* Calculate number of shell blocks */
- iter = frame_length / SHELL_CODEC_FRAME_LENGTH;
-
- /***************************************************/
- /* Sum-Weighted-Pulses Decoding */
- /***************************************************/
- cdf_ptr = SKP_Silk_pulses_per_block_CDF[ psDecCtrl->RateLevelIndex ];
- for( i = 0; i < iter; i++ ) {
- nLshifts[ i ] = 0;
- SKP_Silk_range_decoder( &sum_pulses[ i ], psRC, cdf_ptr, SKP_Silk_pulses_per_block_CDF_offset );
-
- /* LSB indication */
- while( sum_pulses[ i ] == ( MAX_PULSES + 1 ) ) {
- nLshifts[ i ]++;
- SKP_Silk_range_decoder( &sum_pulses[ i ], psRC,
- SKP_Silk_pulses_per_block_CDF[ N_RATE_LEVELS - 1 ], SKP_Silk_pulses_per_block_CDF_offset );
- }
- }
-
- /***************************************************/
- /* Shell decoding */
- /***************************************************/
- for( i = 0; i < iter; i++ ) {
- if( sum_pulses[ i ] > 0 ) {
- SKP_Silk_shell_decoder( &q[ SKP_SMULBB( i, SHELL_CODEC_FRAME_LENGTH ) ], psRC, sum_pulses[ i ] );
- } else {
- SKP_memset( &q[ SKP_SMULBB( i, SHELL_CODEC_FRAME_LENGTH ) ], 0, SHELL_CODEC_FRAME_LENGTH * sizeof( SKP_int ) );
- }
- }
-
- /***************************************************/
- /* LSB Decoding */
- /***************************************************/
- for( i = 0; i < iter; i++ ) {
- if( nLshifts[ i ] > 0 ) {
- nLS = nLshifts[ i ];
- pulses_ptr = &q[ SKP_SMULBB( i, SHELL_CODEC_FRAME_LENGTH ) ];
- for( k = 0; k < SHELL_CODEC_FRAME_LENGTH; k++ ) {
- abs_q = pulses_ptr[ k ];
- for( j = 0; j < nLS; j++ ) {
- abs_q = SKP_LSHIFT( abs_q, 1 );
- SKP_Silk_range_decoder( &bit, psRC, SKP_Silk_lsb_CDF, 1 );
- abs_q += bit;
- }
- pulses_ptr[ k ] = abs_q;
- }
- }
- }
-
- /****************************************/
- /* Decode and add signs to pulse signal */
- /****************************************/
- SKP_Silk_decode_signs( psRC, q, frame_length, psDecCtrl->sigtype,
- psDecCtrl->QuantOffsetType, psDecCtrl->RateLevelIndex);
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-/* Set decoder sampling rate */
-void SKP_Silk_decoder_set_fs(
- SKP_Silk_decoder_state *psDec, /* I/O Decoder state pointer */
- SKP_int fs_kHz /* I Sampling frequency (kHz) */
-)
-{
- if( psDec->fs_kHz != fs_kHz ) {
- psDec->fs_kHz = fs_kHz;
- psDec->frame_length = SKP_SMULBB( FRAME_LENGTH_MS, fs_kHz );
- psDec->subfr_length = SKP_SMULBB( FRAME_LENGTH_MS / NB_SUBFR, fs_kHz );
- if( psDec->fs_kHz == 8 ) {
- psDec->LPC_order = MIN_LPC_ORDER;
- psDec->psNLSF_CB[ 0 ] = &SKP_Silk_NLSF_CB0_10;
- psDec->psNLSF_CB[ 1 ] = &SKP_Silk_NLSF_CB1_10;
- } else {
- psDec->LPC_order = MAX_LPC_ORDER;
- psDec->psNLSF_CB[ 0 ] = &SKP_Silk_NLSF_CB0_16;
- psDec->psNLSF_CB[ 1 ] = &SKP_Silk_NLSF_CB1_16;
- }
- /* Reset part of the decoder state */
- SKP_memset( psDec->sLPC_Q14, 0, MAX_LPC_ORDER * sizeof( SKP_int32 ) );
- SKP_memset( psDec->outBuf, 0, MAX_FRAME_LENGTH * sizeof( SKP_int16 ) );
- SKP_memset( psDec->prevNLSF_Q15, 0, MAX_LPC_ORDER * sizeof( SKP_int ) );
-
- psDec->lagPrev = 100;
- psDec->LastGainIndex = 1;
- psDec->prev_sigtype = 0;
- psDec->first_frame_after_reset = 1;
-
- if( fs_kHz == 24 ) {
- psDec->HP_A = SKP_Silk_Dec_A_HP_24;
- psDec->HP_B = SKP_Silk_Dec_B_HP_24;
- } else if( fs_kHz == 16 ) {
- psDec->HP_A = SKP_Silk_Dec_A_HP_16;
- psDec->HP_B = SKP_Silk_Dec_B_HP_16;
- } else if( fs_kHz == 12 ) {
- psDec->HP_A = SKP_Silk_Dec_A_HP_12;
- psDec->HP_B = SKP_Silk_Dec_B_HP_12;
- } else if( fs_kHz == 8 ) {
- psDec->HP_A = SKP_Silk_Dec_A_HP_8;
- psDec->HP_B = SKP_Silk_Dec_B_HP_8;
- } else {
- /* unsupported sampling rate */
- SKP_assert( 0 );
- }
- }
-
- /* Check that settings are valid */
- SKP_assert( psDec->frame_length > 0 && psDec->frame_length <= MAX_FRAME_LENGTH );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_DEFINE_H
-#define SKP_SILK_DEFINE_H
-
-#include "SKP_Silk_errors.h"
-#include "SKP_Silk_typedef.h"
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-
-#define MAX_FRAMES_PER_PACKET 5
-
-
-
-/* Limits on bitrate */
-#define MIN_TARGET_RATE_BPS 5000
-#define MAX_TARGET_RATE_BPS 100000
-
-/* Transition bitrates between modes */
-#define SWB2WB_BITRATE_BPS 25000
-#define WB2SWB_BITRATE_BPS 30000
-#define WB2MB_BITRATE_BPS 14000
-#define MB2WB_BITRATE_BPS 18000
-#define MB2NB_BITRATE_BPS 10000
-#define NB2MB_BITRATE_BPS 14000
-
-/* Integration/hysteresis threshold for lowering internal sample frequency */
-/* 30000000 -> 6 sec if bitrate is 5000 bps below limit; 3 sec if bitrate is 10000 bps below limit */
-#define ACCUM_BITS_DIFF_THRESHOLD 30000000
-#define TARGET_RATE_TAB_SZ 8
-
-/* DTX settings */
-#define NO_SPEECH_FRAMES_BEFORE_DTX 5 /* eq 100 ms */
-#define MAX_CONSECUTIVE_DTX 20 /* eq 400 ms */
-
-#define USE_LBRR 1
-
-/* Amount of concecutive no FEC packets before telling JB */
-#define NO_LBRR_THRES 10
-
-/* Maximum delay between real packet and LBRR packet */
-#define MAX_LBRR_DELAY 2
-#define LBRR_IDX_MASK 1
-
-#define INBAND_FEC_MIN_RATE_BPS 18000 /* Dont use inband FEC below this total target rate */
-#define LBRR_LOSS_THRES 1 /* Start adding LBRR at this loss rate */
-
-/* LBRR usage defines */
-#define SKP_SILK_NO_LBRR 0 /* No LBRR information for this packet */
-#define SKP_SILK_ADD_LBRR_TO_PLUS1 1 /* Add LBRR for this packet to packet n + 1 */
-#define SKP_SILK_ADD_LBRR_TO_PLUS2 2 /* Add LBRR for this packet to packet n + 2 */
-
-/* Frame termination indicator defines */
-#define SKP_SILK_LAST_FRAME 0 /* Last frames in packet */
-#define SKP_SILK_MORE_FRAMES 1 /* More frames to follow this one */
-#define SKP_SILK_LBRR_VER1 2 /* LBRR information from packet n - 1 */
-#define SKP_SILK_LBRR_VER2 3 /* LBRR information from packet n - 2 */
-#define SKP_SILK_EXT_LAYER 4 /* Extension layers added */
-
-/* Number of Second order Sections for SWB detection HP filter */
-#define NB_SOS 3
-#define HP_8_KHZ_THRES 10 /* average energy per sample, above 8 kHz */
-#define CONCEC_SWB_SMPLS_THRES 480 * 15 /* 300 ms */
-#define WB_DETECT_ACTIVE_SPEECH_MS_THRES 15000 /* ms of active speech needed for WB detection */
-
-/* Low complexity setting */
-#define LOW_COMPLEXITY_ONLY 0
-
-/* Activate bandwidth transition filtering for mode switching */
-#define SWITCH_TRANSITION_FILTERING 1
-
-/* Decoder Parameters */
-#define DEC_HP_ORDER 2
-
-/* Maximum sampling frequency, should be 16 for some embedded platforms */
-#define MAX_FS_KHZ 24
-#define MAX_API_FS_KHZ 48
-
-/* Signal Types used by silk */
-#define SIG_TYPE_VOICED 0
-#define SIG_TYPE_UNVOICED 1
-
-/* VAD Types used by silk */
-#define NO_VOICE_ACTIVITY 0
-#define VOICE_ACTIVITY 1
-
-/* Number of samples per frame */
-#define FRAME_LENGTH_MS 20
-#define MAX_FRAME_LENGTH ( FRAME_LENGTH_MS * MAX_FS_KHZ )
-
-/* Milliseconds of lookahead for pitch analysis */
-#define LA_PITCH_MS 2
-#define LA_PITCH_MAX ( LA_PITCH_MS * MAX_FS_KHZ )
-
-/* Length of LPC window used in find pitch */
-#define FIND_PITCH_LPC_WIN_MS ( 20 + (LA_PITCH_MS << 1) )
-#define FIND_PITCH_LPC_WIN_MAX ( FIND_PITCH_LPC_WIN_MS * MAX_FS_KHZ )
-
-/* Order of LPC used in find pitch */
-#define MAX_FIND_PITCH_LPC_ORDER 16
-
-#define PITCH_EST_COMPLEXITY_HC_MODE SKP_Silk_PITCH_EST_MAX_COMPLEX
-#define PITCH_EST_COMPLEXITY_MC_MODE SKP_Silk_PITCH_EST_MID_COMPLEX
-#define PITCH_EST_COMPLEXITY_LC_MODE SKP_Silk_PITCH_EST_MIN_COMPLEX
-
-/* Milliseconds of lookahead for noise shape analysis */
-#define LA_SHAPE_MS 5
-#define LA_SHAPE_MAX ( LA_SHAPE_MS * MAX_FS_KHZ )
-
-/* Max length of LPC window used in noise shape analysis */
-#define SHAPE_LPC_WIN_MAX ( 15 * MAX_FS_KHZ )
-
-/* Max number of bytes in payload output buffer (may contain multiple frames) */
-#define MAX_ARITHM_BYTES 1024
-
-#define RANGE_CODER_WRITE_BEYOND_BUFFER -1
-#define RANGE_CODER_CDF_OUT_OF_RANGE -2
-#define RANGE_CODER_NORMALIZATION_FAILED -3
-#define RANGE_CODER_ZERO_INTERVAL_WIDTH -4
-#define RANGE_CODER_DECODER_CHECK_FAILED -5
-#define RANGE_CODER_READ_BEYOND_BUFFER -6
-#define RANGE_CODER_ILLEGAL_SAMPLING_RATE -7
-#define RANGE_CODER_DEC_PAYLOAD_TOO_LONG -8
-
-/* dB level of lowest gain quantization level */
-#define MIN_QGAIN_DB 6
-/* dB level of highest gain quantization level */
-#define MAX_QGAIN_DB 86
-/* Number of gain quantization levels */
-#define N_LEVELS_QGAIN 64
-/* Max increase in gain quantization index */
-#define MAX_DELTA_GAIN_QUANT 40
-/* Max decrease in gain quantization index */
-#define MIN_DELTA_GAIN_QUANT -4
-
-/* Quantization offsets (multiples of 4) */
-#define OFFSET_VL_Q10 32
-#define OFFSET_VH_Q10 100
-#define OFFSET_UVL_Q10 100
-#define OFFSET_UVH_Q10 256
-
-/* Maximum numbers of iterations used to stabilize a LPC vector */
-#define MAX_LPC_STABILIZE_ITERATIONS 20
-
-#define MAX_LPC_ORDER 16
-#define MIN_LPC_ORDER 10
-
-/* Find Pred Coef defines */
-#define LTP_ORDER 5
-
-/* LTP quantization settings */
-#define NB_LTP_CBKS 3
-
-/* Number of subframes */
-#define NB_SUBFR 4
-
-/* Flag to use harmonic noise shaping */
-#define USE_HARM_SHAPING 1
-
-/* Max LPC order of noise shaping filters */
-#define MAX_SHAPE_LPC_ORDER 16
-
-#define HARM_SHAPE_FIR_TAPS 3
-
-/* Maximum number of delayed decision states */
-#define MAX_DEL_DEC_STATES 4
-
-#define LTP_BUF_LENGTH 512
-#define LTP_MASK (LTP_BUF_LENGTH - 1)
-
-#define DECISION_DELAY 32
-#define DECISION_DELAY_MASK (DECISION_DELAY - 1)
-
-/* number of subframes for excitation entropy coding */
-#define SHELL_CODEC_FRAME_LENGTH 16
-#define MAX_NB_SHELL_BLOCKS (MAX_FRAME_LENGTH / SHELL_CODEC_FRAME_LENGTH)
-
-/* number of rate levels, for entropy coding of excitation */
-#define N_RATE_LEVELS 10
-
-/* maximum sum of pulses per shell coding frame */
-#define MAX_PULSES 18
-
-#define MAX_MATRIX_SIZE MAX_LPC_ORDER /* Max of LPC Order and LTP order */
-
-#if( MAX_LPC_ORDER > DECISION_DELAY )
-# define NSQ_LPC_BUF_LENGTH MAX_LPC_ORDER
-#else
-# define NSQ_LPC_BUF_LENGTH DECISION_DELAY
-#endif
-
-/***********************/
-/* High pass filtering */
-/***********************/
-#define HIGH_PASS_INPUT 1
-
-/***************************/
-/* Voice activity detector */
-/***************************/
-#define VAD_N_BANDS 4
-
-#define VAD_INTERNAL_SUBFRAMES_LOG2 2
-#define VAD_INTERNAL_SUBFRAMES (1 << VAD_INTERNAL_SUBFRAMES_LOG2)
-
-#define VAD_NOISE_LEVEL_SMOOTH_COEF_Q16 1024 /* Must be < 4096 */
-#define VAD_NOISE_LEVELS_BIAS 50
-
-/* Sigmoid settings */
-#define VAD_NEGATIVE_OFFSET_Q5 128 /* sigmoid is 0 at -128 */
-#define VAD_SNR_FACTOR_Q16 45000
-
-/* smoothing for SNR measurement */
-#define VAD_SNR_SMOOTH_COEF_Q18 4096
-
-/******************/
-/* NLSF quantizer */
-/******************/
-# define NLSF_MSVQ_MAX_CB_STAGES 10 /* Update manually when changing codebooks */
-# define NLSF_MSVQ_MAX_VECTORS_IN_STAGE 128 /* Update manually when changing codebooks */
-# define NLSF_MSVQ_MAX_VECTORS_IN_STAGE_TWO_TO_END 16 /* Update manually when changing codebooks */
-
-#define NLSF_MSVQ_FLUCTUATION_REDUCTION 1
-#define MAX_NLSF_MSVQ_SURVIVORS 16
-#define MAX_NLSF_MSVQ_SURVIVORS_LC_MODE 2
-#define MAX_NLSF_MSVQ_SURVIVORS_MC_MODE 4
-
-/* Based on above defines, calculate how much memory is necessary to allocate */
-#if( NLSF_MSVQ_MAX_VECTORS_IN_STAGE > ( MAX_NLSF_MSVQ_SURVIVORS_LC_MODE * NLSF_MSVQ_MAX_VECTORS_IN_STAGE_TWO_TO_END ) )
-# define NLSF_MSVQ_TREE_SEARCH_MAX_VECTORS_EVALUATED_LC_MODE NLSF_MSVQ_MAX_VECTORS_IN_STAGE
-#else
-# define NLSF_MSVQ_TREE_SEARCH_MAX_VECTORS_EVALUATED_LC_MODE MAX_NLSF_MSVQ_SURVIVORS_LC_MODE * NLSF_MSVQ_MAX_VECTORS_IN_STAGE_TWO_TO_END
-#endif
-
-#if( NLSF_MSVQ_MAX_VECTORS_IN_STAGE > ( MAX_NLSF_MSVQ_SURVIVORS * NLSF_MSVQ_MAX_VECTORS_IN_STAGE_TWO_TO_END ) )
-# define NLSF_MSVQ_TREE_SEARCH_MAX_VECTORS_EVALUATED NLSF_MSVQ_MAX_VECTORS_IN_STAGE
-#else
-# define NLSF_MSVQ_TREE_SEARCH_MAX_VECTORS_EVALUATED MAX_NLSF_MSVQ_SURVIVORS * NLSF_MSVQ_MAX_VECTORS_IN_STAGE_TWO_TO_END
-#endif
-
-#define NLSF_MSVQ_SURV_MAX_REL_RD 0.1f /* Must be < 0.5 */
-
-/* Transition filtering for mode switching */
-#if SWITCH_TRANSITION_FILTERING
-# define TRANSITION_TIME_UP_MS 5120 // 5120 = 64 * FRAME_LENGTH_MS * ( TRANSITION_INT_NUM - 1 ) = 64*(20*4)
-# define TRANSITION_TIME_DOWN_MS 2560 // 2560 = 32 * FRAME_LENGTH_MS * ( TRANSITION_INT_NUM - 1 ) = 32*(20*4)
-# define TRANSITION_NB 3 /* Hardcoded in tables */
-# define TRANSITION_NA 2 /* Hardcoded in tables */
-# define TRANSITION_INT_NUM 5 /* Hardcoded in tables */
-# define TRANSITION_FRAMES_UP ( TRANSITION_TIME_UP_MS / FRAME_LENGTH_MS )
-# define TRANSITION_FRAMES_DOWN ( TRANSITION_TIME_DOWN_MS / FRAME_LENGTH_MS )
-# define TRANSITION_INT_STEPS_UP ( TRANSITION_FRAMES_UP / ( TRANSITION_INT_NUM - 1 ) )
-# define TRANSITION_INT_STEPS_DOWN ( TRANSITION_FRAMES_DOWN / ( TRANSITION_INT_NUM - 1 ) )
-#endif
-
-/* Row based */
-#define matrix_ptr(Matrix_base_adr, row, column, N) *(Matrix_base_adr + ((row)*(N)+(column)))
-#define matrix_adr(Matrix_base_adr, row, column, N) (Matrix_base_adr + ((row)*(N)+(column)))
-
-/* Column based */
-#ifndef matrix_c_ptr
-# define matrix_c_ptr(Matrix_base_adr, row, column, M) *(Matrix_base_adr + ((row)+(M)*(column)))
-#endif
-#define matrix_c_adr(Matrix_base_adr, row, column, M) (Matrix_base_adr + ((row)+(M)*(column)))
-
-/* BWE factors to apply after packet loss */
-#define BWE_AFTER_LOSS_Q16 63570
-
-/* Defines for CN generation */
-#define CNG_BUF_MASK_MAX 255 /* 2^floor(log2(MAX_FRAME_LENGTH))-1 */
-#define CNG_GAIN_SMTH_Q16 4634 /* 0.25^(1/4) */
-#define CNG_NLSF_SMTH_Q16 16348 /* 0.25 */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/*
- * Detect SWB input by measuring energy above 8 kHz.
- */
-
-#include "SKP_Silk_main.h"
-
-void SKP_Silk_detect_SWB_input(
- SKP_Silk_detect_SWB_state *psSWBdetect, /* (I/O) encoder state */
- const SKP_int16 samplesIn[], /* (I) input to encoder */
- SKP_int nSamplesIn /* (I) length of input */
-)
-{
- SKP_int HP_8_kHz_len, i, shift;
- SKP_int16 in_HP_8_kHz[ MAX_FRAME_LENGTH ];
- SKP_int32 energy_32;
-
- /* High pass filter with cutoff at 8 khz */
- HP_8_kHz_len = SKP_min_int( nSamplesIn, MAX_FRAME_LENGTH );
- HP_8_kHz_len = SKP_max_int( HP_8_kHz_len, 0 );
-
- /* Cutoff around 9 khz */
- /* A = conv(conv([8192,14613, 6868], [8192,12883, 7337]), [8192,11586, 7911]); */
- /* B = conv(conv([575, -948, 575], [575, -221, 575]), [575, 104, 575]); */
- SKP_Silk_biquad( samplesIn, SKP_Silk_SWB_detect_B_HP_Q13[ 0 ], SKP_Silk_SWB_detect_A_HP_Q13[ 0 ],
- psSWBdetect->S_HP_8_kHz[ 0 ], in_HP_8_kHz, HP_8_kHz_len );
- for( i = 1; i < NB_SOS; i++ ) {
- SKP_Silk_biquad( in_HP_8_kHz, SKP_Silk_SWB_detect_B_HP_Q13[ i ], SKP_Silk_SWB_detect_A_HP_Q13[ i ],
- psSWBdetect->S_HP_8_kHz[ i ], in_HP_8_kHz, HP_8_kHz_len );
- }
-
- /* Calculate energy in HP signal */
- SKP_Silk_sum_sqr_shift( &energy_32, &shift, in_HP_8_kHz, HP_8_kHz_len );
-
- /* Count concecutive samples above threshold, after adjusting threshold for number of input samples and shift */
- if( energy_32 > SKP_RSHIFT( SKP_SMULBB( HP_8_KHZ_THRES, HP_8_kHz_len ), shift ) ) {
- psSWBdetect->ConsecSmplsAboveThres += nSamplesIn;
- if( psSWBdetect->ConsecSmplsAboveThres > CONCEC_SWB_SMPLS_THRES ) {
- psSWBdetect->SWB_detected = 1;
- }
- } else {
- psSWBdetect->ConsecSmplsAboveThres -= nSamplesIn;
- psSWBdetect->ConsecSmplsAboveThres = SKP_max( psSWBdetect->ConsecSmplsAboveThres, 0 );
- }
-
- /* If sufficient speech activity and no SWB detected, we detect the signal as being WB */
- if( ( psSWBdetect->ActiveSpeech_ms > WB_DETECT_ACTIVE_SPEECH_MS_THRES ) && ( psSWBdetect->SWB_detected == 0 ) ) {
- psSWBdetect->WB_detected = 1;
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-
-#include "SKP_Silk_define.h"
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_SDK_API.h"
-#include "SKP_Silk_control.h"
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_structs.h"
-#define SKP_Silk_EncodeControlStruct SKP_SILK_SDK_EncControlStruct
-
-/****************************************/
-/* Encoder functions */
-/****************************************/
-
-SKP_int SKP_Silk_SDK_Get_Encoder_Size( SKP_int32 *encSizeBytes )
-{
- SKP_int ret = 0;
-
- *encSizeBytes = sizeof( SKP_Silk_encoder_state_FIX );
-
- return ret;
-}
-
-
-/***************************************/
-/* Read control structure from encoder */
-/***************************************/
-SKP_int SKP_Silk_SDK_QueryEncoder(
- const void *encState, /* I: State Vector */
- SKP_Silk_EncodeControlStruct *encStatus /* O: Control Structure */
-)
-{
- SKP_Silk_encoder_state_FIX *psEnc;
- SKP_int ret = 0;
-
- psEnc = ( SKP_Silk_encoder_state_FIX* )encState;
-
- encStatus->API_sampleRate = psEnc->sCmn.API_fs_Hz;
- encStatus->maxInternalSampleRate = SKP_SMULBB( psEnc->sCmn.maxInternal_fs_kHz, 1000 );
- encStatus->packetSize = ( SKP_int )SKP_DIV32_16( psEnc->sCmn.API_fs_Hz * psEnc->sCmn.PacketSize_ms, 1000 ); /* convert samples -> ms */
- encStatus->bitRate = psEnc->sCmn.TargetRate_bps;
- encStatus->packetLossPercentage = psEnc->sCmn.PacketLoss_perc;
- encStatus->complexity = psEnc->sCmn.Complexity;
- encStatus->useInBandFEC = psEnc->sCmn.useInBandFEC;
- encStatus->useDTX = psEnc->sCmn.useDTX;
- return ret;
-}
-
-/*************************/
-/* Init or Reset encoder */
-/*************************/
-SKP_int SKP_Silk_SDK_InitEncoder(
- void *encState, /* I/O: State */
- SKP_Silk_EncodeControlStruct *encStatus /* O: Control structure */
-)
-{
- SKP_Silk_encoder_state_FIX *psEnc;
- SKP_int ret = 0;
-
-
- psEnc = ( SKP_Silk_encoder_state_FIX* )encState;
-
- /* Reset Encoder */
- if( ret += SKP_Silk_init_encoder_FIX( psEnc ) ) {
- SKP_assert( 0 );
- }
-
- /* Read control structure */
- if( ret += SKP_Silk_SDK_QueryEncoder( encState, encStatus ) ) {
- SKP_assert( 0 );
- }
-
-
- return ret;
-}
-
-/**************************/
-/* Encode frame with Silk */
-/**************************/
-SKP_int SKP_Silk_SDK_Encode(
- void *encState, /* I/O: State */
- const SKP_Silk_EncodeControlStruct *encControl, /* I: Control structure */
- const SKP_int16 *samplesIn, /* I: Speech sample input vector */
- SKP_int nSamplesIn, /* I: Number of samples in input vector */
- SKP_uint8 *outData, /* O: Encoded output vector */
- SKP_int16 *nBytesOut /* I/O: Number of bytes in outData (input: Max bytes) */
-)
-{
- SKP_int max_internal_fs_kHz, PacketSize_ms, PacketLoss_perc, UseInBandFEC, UseDTX, ret = 0;
- SKP_int nSamplesToBuffer, Complexity, input_10ms, nSamplesFromInput = 0;
- SKP_int32 TargetRate_bps, API_fs_Hz;
- SKP_int16 MaxBytesOut;
- SKP_Silk_encoder_state_FIX *psEnc = ( SKP_Silk_encoder_state_FIX* )encState;
-
- SKP_assert( encControl != NULL );
-
- /* Check sampling frequency first, to avoid divide by zero later */
- if( ( ( encControl->API_sampleRate != 8000 ) &&
- ( encControl->API_sampleRate != 12000 ) &&
- ( encControl->API_sampleRate != 16000 ) &&
- ( encControl->API_sampleRate != 24000 ) &&
- ( encControl->API_sampleRate != 32000 ) &&
- ( encControl->API_sampleRate != 44100 ) &&
- ( encControl->API_sampleRate != 48000 ) ) ||
- ( ( encControl->maxInternalSampleRate != 8000 ) &&
- ( encControl->maxInternalSampleRate != 12000 ) &&
- ( encControl->maxInternalSampleRate != 16000 ) &&
- ( encControl->maxInternalSampleRate != 24000 ) ) ) {
- ret = SKP_SILK_ENC_FS_NOT_SUPPORTED;
- SKP_assert( 0 );
- return( ret );
- }
-
- /* Set encoder parameters from control structure */
- API_fs_Hz = encControl->API_sampleRate;
- max_internal_fs_kHz = (SKP_int)( encControl->maxInternalSampleRate >> 10 ) + 1; /* convert Hz -> kHz */
- PacketSize_ms = SKP_DIV32( 1000 * (SKP_int)encControl->packetSize, API_fs_Hz );
- TargetRate_bps = encControl->bitRate;
- PacketLoss_perc = encControl->packetLossPercentage;
- UseInBandFEC = encControl->useInBandFEC;
- Complexity = encControl->complexity;
- UseDTX = encControl->useDTX;
-
- /* Save values in state */
- psEnc->sCmn.API_fs_Hz = API_fs_Hz;
- psEnc->sCmn.maxInternal_fs_kHz = max_internal_fs_kHz;
- psEnc->sCmn.useInBandFEC = UseInBandFEC;
-
- /* Only accept input lengths that are a multiple of 10 ms */
- input_10ms = SKP_DIV32( 100 * nSamplesIn, API_fs_Hz );
- if( input_10ms * API_fs_Hz != 100 * nSamplesIn || nSamplesIn < 0 ) {
- ret = SKP_SILK_ENC_INPUT_INVALID_NO_OF_SAMPLES;
- SKP_assert( 0 );
- return( ret );
- }
-
- TargetRate_bps = SKP_LIMIT( TargetRate_bps, MIN_TARGET_RATE_BPS, MAX_TARGET_RATE_BPS );
- if( ( ret = SKP_Silk_control_encoder_FIX( psEnc, PacketSize_ms, TargetRate_bps,
- PacketLoss_perc, UseDTX, Complexity) ) != 0 ) {
- SKP_assert( 0 );
- return( ret );
- }
-
- /* Make sure no more than one packet can be produced */
- if( 1000 * (SKP_int32)nSamplesIn > psEnc->sCmn.PacketSize_ms * API_fs_Hz ) {
- ret = SKP_SILK_ENC_INPUT_INVALID_NO_OF_SAMPLES;
- SKP_assert( 0 );
- return( ret );
- }
-
-#if MAX_FS_KHZ > 16
- /* Detect energy above 8 kHz */
- if( SKP_min( API_fs_Hz, 1000 * max_internal_fs_kHz ) == 24000 &&
- psEnc->sCmn.sSWBdetect.SWB_detected == 0 &&
- psEnc->sCmn.sSWBdetect.WB_detected == 0 ) {
- SKP_Silk_detect_SWB_input( &psEnc->sCmn.sSWBdetect, samplesIn, ( SKP_int )nSamplesIn );
- }
-#endif
-
- /* Input buffering/resampling and encoding */
- MaxBytesOut = 0; /* return 0 output bytes if no encoder called */
- while( 1 ) {
- nSamplesToBuffer = psEnc->sCmn.frame_length - psEnc->sCmn.inputBufIx;
- if( API_fs_Hz == SKP_SMULBB( 1000, psEnc->sCmn.fs_kHz ) ) {
- nSamplesToBuffer = SKP_min_int( nSamplesToBuffer, nSamplesIn );
- nSamplesFromInput = nSamplesToBuffer;
- /* Copy to buffer */
- SKP_memcpy( &psEnc->sCmn.inputBuf[ psEnc->sCmn.inputBufIx ], samplesIn, nSamplesFromInput * sizeof( SKP_int16 ) );
- } else {
- nSamplesToBuffer = SKP_min( nSamplesToBuffer, 10 * input_10ms * psEnc->sCmn.fs_kHz );
- nSamplesFromInput = SKP_DIV32_16( nSamplesToBuffer * API_fs_Hz, psEnc->sCmn.fs_kHz * 1000 );
- /* Resample and write to buffer */
- ret += SKP_Silk_resampler( &psEnc->sCmn.resampler_state,
- &psEnc->sCmn.inputBuf[ psEnc->sCmn.inputBufIx ], samplesIn, nSamplesFromInput );
- }
- samplesIn += nSamplesFromInput;
- nSamplesIn -= nSamplesFromInput;
- psEnc->sCmn.inputBufIx += nSamplesToBuffer;
-
- /* Silk encoder */
- if( psEnc->sCmn.inputBufIx >= psEnc->sCmn.frame_length ) {
- SKP_assert( psEnc->sCmn.inputBufIx == psEnc->sCmn.frame_length );
-
- /* Enough data in input buffer, so encode */
- if( MaxBytesOut == 0 ) {
- /* No payload obtained so far */
- MaxBytesOut = *nBytesOut;
- if( ( ret = SKP_Silk_encode_frame_FIX( psEnc, outData, &MaxBytesOut, psEnc->sCmn.inputBuf ) ) != 0 ) {
- SKP_assert( 0 );
- }
- } else {
- /* outData already contains a payload */
- if( ( ret = SKP_Silk_encode_frame_FIX( psEnc, outData, nBytesOut, psEnc->sCmn.inputBuf ) ) != 0 ) {
- SKP_assert( 0 );
- }
- /* Check that no second payload was created */
- SKP_assert( *nBytesOut == 0 );
- }
- psEnc->sCmn.inputBufIx = 0;
- psEnc->sCmn.controlled_since_last_payload = 0;
-
- if( nSamplesIn == 0 ) {
- break;
- }
- } else {
- break;
- }
- }
-
- *nBytesOut = MaxBytesOut;
- if( psEnc->sCmn.useDTX && psEnc->sCmn.inDTX ) {
- /* DTX simulation */
- *nBytesOut = 0;
- }
-
-
- return ret;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
-
-/****************/
-/* Encode frame */
-/****************/
-SKP_int SKP_Silk_encode_frame_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk FIX encoder state */
- SKP_uint8 *pCode, /* O Pointer to payload */
- SKP_int16 *pnBytesOut, /* I/O Pointer to number of payload bytes */
- /* input: max length; output: used */
- const SKP_int16 *pIn /* I Pointer to input speech frame */
-)
-{
- SKP_Silk_encoder_control_FIX sEncCtrl;
- SKP_int nBytes, ret = 0;
- SKP_int16 *x_frame, *res_pitch_frame;
- SKP_int16 xfw[ MAX_FRAME_LENGTH ];
- SKP_int16 pIn_HP[ MAX_FRAME_LENGTH ];
- SKP_int16 res_pitch[ 2 * MAX_FRAME_LENGTH + LA_PITCH_MAX ];
- SKP_int LBRR_idx, frame_terminator, SNR_dB_Q7;
- const SKP_uint16 *FrameTermination_CDF;
- /* Low bitrate redundancy parameters */
- SKP_uint8 LBRRpayload[ MAX_ARITHM_BYTES ];
- SKP_int16 nBytesLBRR;
-
-
- sEncCtrl.sCmn.Seed = psEnc->sCmn.frameCounter++ & 3;
- /**************************************************************/
- /* Setup Input Pointers, and insert frame in input buffer */
- /*************************************************************/
- x_frame = psEnc->x_buf + psEnc->sCmn.frame_length; /* start of frame to encode */
- res_pitch_frame = res_pitch + psEnc->sCmn.frame_length; /* start of pitch LPC residual frame */
-
- /****************************/
- /* Voice Activity Detection */
- /****************************/
- ret = SKP_Silk_VAD_GetSA_Q8( &psEnc->sCmn.sVAD, &psEnc->speech_activity_Q8, &SNR_dB_Q7,
- sEncCtrl.input_quality_bands_Q15, &sEncCtrl.input_tilt_Q15,
- pIn,psEnc->sCmn.frame_length );
-
- /*******************************************/
- /* High-pass filtering of the input signal */
- /*******************************************/
-#if HIGH_PASS_INPUT
- /* Variable high-pass filter */
- SKP_Silk_HP_variable_cutoff_FIX( psEnc, &sEncCtrl, pIn_HP, pIn );
-#else
- SKP_memcpy( pIn_HP, pIn, psEnc->sCmn.frame_length * sizeof( SKP_int16 ) );
-#endif
-
-#if SWITCH_TRANSITION_FILTERING
- /* Ensure smooth bandwidth transitions */
- SKP_Silk_LP_variable_cutoff( &psEnc->sCmn.sLP, x_frame + LA_SHAPE_MS * psEnc->sCmn.fs_kHz, pIn_HP, psEnc->sCmn.frame_length );
-#else
- SKP_memcpy( x_frame + LA_SHAPE_MS * psEnc->sCmn.fs_kHz, pIn_HP,psEnc->sCmn.frame_length * sizeof( SKP_int16 ) );
-#endif
-
- /*****************************************/
- /* Find pitch lags, initial LPC analysis */
- /*****************************************/
- SKP_Silk_find_pitch_lags_FIX( psEnc, &sEncCtrl, res_pitch, x_frame );
-
- /************************/
- /* Noise shape analysis */
- /************************/
- SKP_Silk_noise_shape_analysis_FIX( psEnc, &sEncCtrl, res_pitch_frame, x_frame );
-
- /*****************************************/
- /* Prefiltering for noise shaper */
- /*****************************************/
- SKP_Silk_prefilter_FIX( psEnc, &sEncCtrl, xfw, x_frame );
-
- /***************************************************/
- /* Find linear prediction coefficients (LPC + LTP) */
- /***************************************************/
- SKP_Silk_find_pred_coefs_FIX( psEnc, &sEncCtrl, res_pitch );
-
- /****************************************/
- /* Process gains */
- /****************************************/
- SKP_Silk_process_gains_FIX( psEnc, &sEncCtrl );
-
-
- /****************************************/
- /* Low Bitrate Redundant Encoding */
- /****************************************/
- nBytesLBRR = MAX_ARITHM_BYTES;
- SKP_Silk_LBRR_encode_FIX( psEnc, &sEncCtrl, LBRRpayload, &nBytesLBRR, xfw );
-
- /*****************************************/
- /* Noise shaping quantization */
- /*****************************************/
- if( psEnc->sCmn.nStatesDelayedDecision > 1 || psEnc->sCmn.warping_Q16 > 0 ) {
- SKP_Silk_NSQ_del_dec( &psEnc->sCmn, &sEncCtrl.sCmn, &psEnc->sNSQ, xfw,
- psEnc->sCmn.q, sEncCtrl.sCmn.NLSFInterpCoef_Q2,
- sEncCtrl.PredCoef_Q12[ 0 ], sEncCtrl.LTPCoef_Q14, sEncCtrl.AR2_Q13, sEncCtrl.HarmShapeGain_Q14,
- sEncCtrl.Tilt_Q14, sEncCtrl.LF_shp_Q14, sEncCtrl.Gains_Q16, sEncCtrl.Lambda_Q10,
- sEncCtrl.LTP_scale_Q14 );
- } else {
- SKP_Silk_NSQ( &psEnc->sCmn, &sEncCtrl.sCmn, &psEnc->sNSQ, xfw,
- psEnc->sCmn.q, sEncCtrl.sCmn.NLSFInterpCoef_Q2,
- sEncCtrl.PredCoef_Q12[ 0 ], sEncCtrl.LTPCoef_Q14, sEncCtrl.AR2_Q13, sEncCtrl.HarmShapeGain_Q14,
- sEncCtrl.Tilt_Q14, sEncCtrl.LF_shp_Q14, sEncCtrl.Gains_Q16, sEncCtrl.Lambda_Q10,
- sEncCtrl.LTP_scale_Q14 );
- }
-
- /**************************************************/
- /* Convert speech activity into VAD and DTX flags */
- /**************************************************/
- if( psEnc->speech_activity_Q8 < SKP_FIX_CONST( SPEECH_ACTIVITY_DTX_THRES, 8 ) ) {
- psEnc->sCmn.vadFlag = NO_VOICE_ACTIVITY;
- psEnc->sCmn.noSpeechCounter++;
- if( psEnc->sCmn.noSpeechCounter > NO_SPEECH_FRAMES_BEFORE_DTX ) {
- psEnc->sCmn.inDTX = 1;
- }
- if( psEnc->sCmn.noSpeechCounter > MAX_CONSECUTIVE_DTX ) {
- psEnc->sCmn.noSpeechCounter = 0;
- psEnc->sCmn.inDTX = 0;
- }
- } else {
- psEnc->sCmn.noSpeechCounter = 0;
- psEnc->sCmn.inDTX = 0;
- psEnc->sCmn.vadFlag = VOICE_ACTIVITY;
- }
-
- /****************************************/
- /* Initialize range coder */
- /****************************************/
- if( psEnc->sCmn.nFramesInPayloadBuf == 0 ) {
- SKP_Silk_range_enc_init( &psEnc->sCmn.sRC );
- psEnc->sCmn.nBytesInPayloadBuf = 0;
- }
-
- /****************************************/
- /* Encode Parameters */
- /****************************************/
- SKP_Silk_encode_parameters( &psEnc->sCmn, &sEncCtrl.sCmn, &psEnc->sCmn.sRC, psEnc->sCmn.q );
- FrameTermination_CDF = SKP_Silk_FrameTermination_CDF;
-
- /****************************************/
- /* Update Buffers and State */
- /****************************************/
- /* Update input buffer */
- SKP_memmove( psEnc->x_buf, &psEnc->x_buf[ psEnc->sCmn.frame_length ],
- ( psEnc->sCmn.frame_length + LA_SHAPE_MS * psEnc->sCmn.fs_kHz ) * sizeof( SKP_int16 ) );
-
- /* Parameters needed for next frame */
- psEnc->sCmn.prev_sigtype = sEncCtrl.sCmn.sigtype;
- psEnc->sCmn.prevLag = sEncCtrl.sCmn.pitchL[ NB_SUBFR - 1];
- psEnc->sCmn.first_frame_after_reset = 0;
-
- if( psEnc->sCmn.sRC.error ) {
- /* Encoder returned error: clear payload buffer */
- psEnc->sCmn.nFramesInPayloadBuf = 0;
- } else {
- psEnc->sCmn.nFramesInPayloadBuf++;
- }
-
- /****************************************/
- /* Finalize payload and copy to output */
- /****************************************/
- if( psEnc->sCmn.nFramesInPayloadBuf * FRAME_LENGTH_MS >= psEnc->sCmn.PacketSize_ms ) {
-
- LBRR_idx = ( psEnc->sCmn.oldest_LBRR_idx + 1 ) & LBRR_IDX_MASK;
-
- /* Check if FEC information should be added */
- frame_terminator = SKP_SILK_LAST_FRAME;
- if( psEnc->sCmn.LBRR_buffer[ LBRR_idx ].usage == SKP_SILK_ADD_LBRR_TO_PLUS1 ) {
- frame_terminator = SKP_SILK_LBRR_VER1;
- }
- if( psEnc->sCmn.LBRR_buffer[ psEnc->sCmn.oldest_LBRR_idx ].usage == SKP_SILK_ADD_LBRR_TO_PLUS2 ) {
- frame_terminator = SKP_SILK_LBRR_VER2;
- LBRR_idx = psEnc->sCmn.oldest_LBRR_idx;
- }
-
- /* Add the frame termination info to stream */
- SKP_Silk_range_encoder( &psEnc->sCmn.sRC, frame_terminator, FrameTermination_CDF );
-
- /* Payload length so far */
- SKP_Silk_range_coder_get_length( &psEnc->sCmn.sRC, &nBytes );
-
- /* Check that there is enough space in external output buffer, and move data */
- if( *pnBytesOut >= nBytes ) {
- SKP_Silk_range_enc_wrap_up( &psEnc->sCmn.sRC );
- SKP_memcpy( pCode, psEnc->sCmn.sRC.buffer, nBytes * sizeof( SKP_uint8 ) );
-
- if( frame_terminator > SKP_SILK_MORE_FRAMES &&
- *pnBytesOut >= nBytes + psEnc->sCmn.LBRR_buffer[ LBRR_idx ].nBytes ) {
- /* Get old packet and add to payload. */
- SKP_memcpy( &pCode[ nBytes ],
- psEnc->sCmn.LBRR_buffer[ LBRR_idx ].payload,
- psEnc->sCmn.LBRR_buffer[ LBRR_idx ].nBytes * sizeof( SKP_uint8 ) );
- nBytes += psEnc->sCmn.LBRR_buffer[ LBRR_idx ].nBytes;
- }
-
- *pnBytesOut = nBytes;
-
- /* Update FEC buffer */
- SKP_memcpy( psEnc->sCmn.LBRR_buffer[ psEnc->sCmn.oldest_LBRR_idx ].payload, LBRRpayload,
- nBytesLBRR * sizeof( SKP_uint8 ) );
- psEnc->sCmn.LBRR_buffer[ psEnc->sCmn.oldest_LBRR_idx ].nBytes = nBytesLBRR;
- /* The line below describes how FEC should be used */
- psEnc->sCmn.LBRR_buffer[ psEnc->sCmn.oldest_LBRR_idx ].usage = sEncCtrl.sCmn.LBRR_usage;
- psEnc->sCmn.oldest_LBRR_idx = ( psEnc->sCmn.oldest_LBRR_idx + 1 ) & LBRR_IDX_MASK;
-
- } else {
- /* Not enough space: Payload will be discarded */
- *pnBytesOut = 0;
- nBytes = 0;
- ret = SKP_SILK_ENC_PAYLOAD_BUF_TOO_SHORT;
- }
-
- /* Reset the number of frames in payload buffer */
- psEnc->sCmn.nFramesInPayloadBuf = 0;
- } else {
- /* No payload this time */
- *pnBytesOut = 0;
-
- /* Encode that more frames follows */
- frame_terminator = SKP_SILK_MORE_FRAMES;
- SKP_Silk_range_encoder( &psEnc->sCmn.sRC, frame_terminator, FrameTermination_CDF );
-
- /* Payload length so far */
- SKP_Silk_range_coder_get_length( &psEnc->sCmn.sRC, &nBytes );
-
- }
-
- /* Check for arithmetic coder errors */
- if( psEnc->sCmn.sRC.error ) {
- ret = SKP_SILK_ENC_INTERNAL_ERROR;
- }
-
- /* Simulate number of ms buffered in channel because of exceeding TargetRate */
- SKP_assert( ( 8 * 1000 * ( (SKP_int64)nBytes - (SKP_int64)psEnc->sCmn.nBytesInPayloadBuf ) ) ==
- SKP_SAT32( 8 * 1000 * ( (SKP_int64)nBytes - (SKP_int64)psEnc->sCmn.nBytesInPayloadBuf ) ) );
- SKP_assert( psEnc->sCmn.TargetRate_bps > 0 );
- psEnc->BufferedInChannel_ms += SKP_DIV32( 8 * 1000 * ( nBytes - psEnc->sCmn.nBytesInPayloadBuf ), psEnc->sCmn.TargetRate_bps );
- psEnc->BufferedInChannel_ms -= FRAME_LENGTH_MS;
- psEnc->BufferedInChannel_ms = SKP_LIMIT_int( psEnc->BufferedInChannel_ms, 0, 100 );
- psEnc->sCmn.nBytesInPayloadBuf = nBytes;
-
- if( psEnc->speech_activity_Q8 > SKP_FIX_CONST( WB_DETECT_ACTIVE_SPEECH_LEVEL_THRES, 8 ) ) {
- psEnc->sCmn.sSWBdetect.ActiveSpeech_ms = SKP_ADD_POS_SAT32( psEnc->sCmn.sSWBdetect.ActiveSpeech_ms, FRAME_LENGTH_MS );
- }
-
-
- return( ret );
-}
-
-/* Low BitRate Redundancy encoding functionality. Reuse all parameters but encode residual with lower bitrate */
-void SKP_Silk_LBRR_encode_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk encoder state */
- SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O Pointer to Silk encoder control struct */
- SKP_uint8 *pCode, /* O Pointer to payload */
- SKP_int16 *pnBytesOut, /* I/O Pointer to number of payload bytes */
- SKP_int16 xfw[] /* I Input signal */
-)
-{
- SKP_int TempGainsIndices[ NB_SUBFR ], frame_terminator;
- SKP_int nBytes, nFramesInPayloadBuf;
- SKP_int32 TempGains_Q16[ NB_SUBFR ];
- SKP_int typeOffset, LTP_scaleIndex, Rate_only_parameters = 0;
- /*******************************************/
- /* Control use of inband LBRR */
- /*******************************************/
- SKP_Silk_LBRR_ctrl_FIX( psEnc, &psEncCtrl->sCmn );
-
- if( psEnc->sCmn.LBRR_enabled ) {
- /* Save original gains */
- SKP_memcpy( TempGainsIndices, psEncCtrl->sCmn.GainsIndices, NB_SUBFR * sizeof( SKP_int ) );
- SKP_memcpy( TempGains_Q16, psEncCtrl->Gains_Q16, NB_SUBFR * sizeof( SKP_int32 ) );
-
- typeOffset = psEnc->sCmn.typeOffsetPrev; // Temp save as cannot be overwritten
- LTP_scaleIndex = psEncCtrl->sCmn.LTP_scaleIndex;
-
- /* Set max rate where quant signal is encoded */
- if( psEnc->sCmn.fs_kHz == 8 ) {
- Rate_only_parameters = 13500;
- } else if( psEnc->sCmn.fs_kHz == 12 ) {
- Rate_only_parameters = 15500;
- } else if( psEnc->sCmn.fs_kHz == 16 ) {
- Rate_only_parameters = 17500;
- } else if( psEnc->sCmn.fs_kHz == 24 ) {
- Rate_only_parameters = 19500;
- } else {
- SKP_assert( 0 );
- }
-
- if( psEnc->sCmn.Complexity > 0 && psEnc->sCmn.TargetRate_bps > Rate_only_parameters ) {
- if( psEnc->sCmn.nFramesInPayloadBuf == 0 ) {
- /* First frame in packet; copy everything */
- SKP_memcpy( &psEnc->sNSQ_LBRR, &psEnc->sNSQ, sizeof( SKP_Silk_nsq_state ) );
-
- psEnc->sCmn.LBRRprevLastGainIndex = psEnc->sShape.LastGainIndex;
- /* Increase Gains to get target LBRR rate */
- psEncCtrl->sCmn.GainsIndices[ 0 ] = psEncCtrl->sCmn.GainsIndices[ 0 ] + psEnc->sCmn.LBRR_GainIncreases;
- psEncCtrl->sCmn.GainsIndices[ 0 ] = SKP_LIMIT_int( psEncCtrl->sCmn.GainsIndices[ 0 ], 0, N_LEVELS_QGAIN - 1 );
- }
- /* Decode to get gains in sync with decoder */
- /* Overwrite unquantized gains with quantized gains */
- SKP_Silk_gains_dequant( psEncCtrl->Gains_Q16, psEncCtrl->sCmn.GainsIndices,
- &psEnc->sCmn.LBRRprevLastGainIndex, psEnc->sCmn.nFramesInPayloadBuf );
-
- /*****************************************/
- /* Noise shaping quantization */
- /*****************************************/
- if( psEnc->sCmn.nStatesDelayedDecision > 1 || psEnc->sCmn.warping_Q16 > 0 ) {
- SKP_Silk_NSQ_del_dec( &psEnc->sCmn, &psEncCtrl->sCmn, &psEnc->sNSQ_LBRR, xfw, psEnc->sCmn.q_LBRR,
- psEncCtrl->sCmn.NLSFInterpCoef_Q2, psEncCtrl->PredCoef_Q12[ 0 ], psEncCtrl->LTPCoef_Q14,
- psEncCtrl->AR2_Q13, psEncCtrl->HarmShapeGain_Q14, psEncCtrl->Tilt_Q14, psEncCtrl->LF_shp_Q14,
- psEncCtrl->Gains_Q16, psEncCtrl->Lambda_Q10, psEncCtrl->LTP_scale_Q14 );
- } else {
- SKP_Silk_NSQ( &psEnc->sCmn, &psEncCtrl->sCmn, &psEnc->sNSQ_LBRR, xfw, psEnc->sCmn.q_LBRR,
- psEncCtrl->sCmn.NLSFInterpCoef_Q2, psEncCtrl->PredCoef_Q12[ 0 ], psEncCtrl->LTPCoef_Q14,
- psEncCtrl->AR2_Q13, psEncCtrl->HarmShapeGain_Q14, psEncCtrl->Tilt_Q14, psEncCtrl->LF_shp_Q14,
- psEncCtrl->Gains_Q16, psEncCtrl->Lambda_Q10, psEncCtrl->LTP_scale_Q14 );
- }
- } else {
- SKP_memset( psEnc->sCmn.q_LBRR, 0, psEnc->sCmn.frame_length * sizeof( SKP_int8 ) );
- psEncCtrl->sCmn.LTP_scaleIndex = 0;
- }
- /****************************************/
- /* Initialize arithmetic coder */
- /****************************************/
- if( psEnc->sCmn.nFramesInPayloadBuf == 0 ) {
- SKP_Silk_range_enc_init( &psEnc->sCmn.sRC_LBRR );
- psEnc->sCmn.nBytesInPayloadBuf = 0;
- }
-
- /****************************************/
- /* Encode Parameters */
- /****************************************/
- SKP_Silk_encode_parameters( &psEnc->sCmn, &psEncCtrl->sCmn,
- &psEnc->sCmn.sRC_LBRR, psEnc->sCmn.q_LBRR );
-
- if( psEnc->sCmn.sRC_LBRR.error ) {
- /* Encoder returned error: clear payload buffer */
- nFramesInPayloadBuf = 0;
- } else {
- nFramesInPayloadBuf = psEnc->sCmn.nFramesInPayloadBuf + 1;
- }
-
- /****************************************/
- /* Finalize payload and copy to output */
- /****************************************/
- if( SKP_SMULBB( nFramesInPayloadBuf, FRAME_LENGTH_MS ) >= psEnc->sCmn.PacketSize_ms ) {
-
- /* Check if FEC information should be added */
- frame_terminator = SKP_SILK_LAST_FRAME;
-
- /* Add the frame termination info to stream */
- SKP_Silk_range_encoder( &psEnc->sCmn.sRC_LBRR, frame_terminator, SKP_Silk_FrameTermination_CDF );
-
- /* Payload length so far */
- SKP_Silk_range_coder_get_length( &psEnc->sCmn.sRC_LBRR, &nBytes );
-
- /* Check that there is enough space in external output buffer and move data */
- if( *pnBytesOut >= nBytes ) {
- SKP_Silk_range_enc_wrap_up( &psEnc->sCmn.sRC_LBRR );
- SKP_memcpy( pCode, psEnc->sCmn.sRC_LBRR.buffer, nBytes * sizeof( SKP_uint8 ) );
-
- *pnBytesOut = nBytes;
- } else {
- /* Not enough space: payload will be discarded */
- *pnBytesOut = 0;
- SKP_assert( 0 );
- }
- } else {
- /* No payload this time */
- *pnBytesOut = 0;
-
- /* Encode that more frames follows */
- frame_terminator = SKP_SILK_MORE_FRAMES;
- SKP_Silk_range_encoder( &psEnc->sCmn.sRC_LBRR, frame_terminator, SKP_Silk_FrameTermination_CDF );
- }
-
- /* Restore original Gains */
- SKP_memcpy( psEncCtrl->sCmn.GainsIndices, TempGainsIndices, NB_SUBFR * sizeof( SKP_int ) );
- SKP_memcpy( psEncCtrl->Gains_Q16, TempGains_Q16, NB_SUBFR * sizeof( SKP_int32 ) );
-
- /* Restore LTP scale index and typeoffset */
- psEncCtrl->sCmn.LTP_scaleIndex = LTP_scaleIndex;
- psEnc->sCmn.typeOffsetPrev = typeOffset;
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-/*******************************************/
-/* Encode parameters to create the payload */
-/*******************************************/
-void SKP_Silk_encode_parameters(
- SKP_Silk_encoder_state *psEncC, /* I/O Encoder state */
- SKP_Silk_encoder_control *psEncCtrlC, /* I/O Encoder control */
- SKP_Silk_range_coder_state *psRC, /* I/O Range encoder state */
- const SKP_int8 *q /* I Quantization indices */
-)
-{
- SKP_int i, k, typeOffset;
- const SKP_Silk_NLSF_CB_struct *psNLSF_CB;
-
-
- /************************/
- /* Encode sampling rate */
- /************************/
- /* only done for first frame in packet */
- if( psEncC->nFramesInPayloadBuf == 0 ) {
- /* get sampling rate index */
- for( i = 0; i < 3; i++ ) {
- if( SKP_Silk_SamplingRates_table[ i ] == psEncC->fs_kHz ) {
- break;
- }
- }
- SKP_Silk_range_encoder( psRC, i, SKP_Silk_SamplingRates_CDF );
- }
-
- /*******************************************/
- /* Encode signal type and quantizer offset */
- /*******************************************/
- typeOffset = 2 * psEncCtrlC->sigtype + psEncCtrlC->QuantOffsetType;
- if( psEncC->nFramesInPayloadBuf == 0 ) {
- /* first frame in packet: independent coding */
- SKP_Silk_range_encoder( psRC, typeOffset, SKP_Silk_type_offset_CDF );
- } else {
- /* condidtional coding */
- SKP_Silk_range_encoder( psRC, typeOffset, SKP_Silk_type_offset_joint_CDF[ psEncC->typeOffsetPrev ] );
- }
- psEncC->typeOffsetPrev = typeOffset;
-
- /****************/
- /* Encode gains */
- /****************/
- /* first subframe */
- if( psEncC->nFramesInPayloadBuf == 0 ) {
- /* first frame in packet: independent coding */
- SKP_Silk_range_encoder( psRC, psEncCtrlC->GainsIndices[ 0 ], SKP_Silk_gain_CDF[ psEncCtrlC->sigtype ] );
- } else {
- /* condidtional coding */
- SKP_Silk_range_encoder( psRC, psEncCtrlC->GainsIndices[ 0 ], SKP_Silk_delta_gain_CDF );
- }
-
- /* remaining subframes */
- for( i = 1; i < NB_SUBFR; i++ ) {
- SKP_Silk_range_encoder( psRC, psEncCtrlC->GainsIndices[ i ], SKP_Silk_delta_gain_CDF );
- }
-
-
- /****************/
- /* Encode NLSFs */
- /****************/
- /* Range encoding of the NLSF path */
- psNLSF_CB = psEncC->psNLSF_CB[ psEncCtrlC->sigtype ];
- SKP_Silk_range_encoder_multi( psRC, psEncCtrlC->NLSFIndices, psNLSF_CB->StartPtr, psNLSF_CB->nStages );
-
- /* Encode NLSF interpolation factor */
- SKP_assert( psEncC->useInterpolatedNLSFs == 1 || psEncCtrlC->NLSFInterpCoef_Q2 == ( 1 << 2 ) );
- SKP_Silk_range_encoder( psRC, psEncCtrlC->NLSFInterpCoef_Q2, SKP_Silk_NLSF_interpolation_factor_CDF );
-
-
- if( psEncCtrlC->sigtype == SIG_TYPE_VOICED ) {
- /*********************/
- /* Encode pitch lags */
- /*********************/
-
-
- /* lag index */
- if( psEncC->fs_kHz == 8 ) {
- SKP_Silk_range_encoder( psRC, psEncCtrlC->lagIndex, SKP_Silk_pitch_lag_NB_CDF );
- } else if( psEncC->fs_kHz == 12 ) {
- SKP_Silk_range_encoder( psRC, psEncCtrlC->lagIndex, SKP_Silk_pitch_lag_MB_CDF );
- } else if( psEncC->fs_kHz == 16 ) {
- SKP_Silk_range_encoder( psRC, psEncCtrlC->lagIndex, SKP_Silk_pitch_lag_WB_CDF );
- } else {
- SKP_Silk_range_encoder( psRC, psEncCtrlC->lagIndex, SKP_Silk_pitch_lag_SWB_CDF );
- }
-
-
- /* countour index */
- if( psEncC->fs_kHz == 8 ) {
- /* Less codevectors used in 8 khz mode */
- SKP_Silk_range_encoder( psRC, psEncCtrlC->contourIndex, SKP_Silk_pitch_contour_NB_CDF );
- } else {
- /* Joint for 12, 16, 24 khz */
- SKP_Silk_range_encoder( psRC, psEncCtrlC->contourIndex, SKP_Silk_pitch_contour_CDF );
- }
-
- /********************/
- /* Encode LTP gains */
- /********************/
-
- /* PERIndex value */
- SKP_Silk_range_encoder( psRC, psEncCtrlC->PERIndex, SKP_Silk_LTP_per_index_CDF );
-
- /* Codebook Indices */
- for( k = 0; k < NB_SUBFR; k++ ) {
- SKP_Silk_range_encoder( psRC, psEncCtrlC->LTPIndex[ k ], SKP_Silk_LTP_gain_CDF_ptrs[ psEncCtrlC->PERIndex ] );
- }
-
- /**********************/
- /* Encode LTP scaling */
- /**********************/
- SKP_Silk_range_encoder( psRC, psEncCtrlC->LTP_scaleIndex, SKP_Silk_LTPscale_CDF );
- }
-
-
- /***************/
- /* Encode seed */
- /***************/
- SKP_Silk_range_encoder( psRC, psEncCtrlC->Seed, SKP_Silk_Seed_CDF );
-
- /*********************************************/
- /* Encode quantization indices of excitation */
- /*********************************************/
- SKP_Silk_encode_pulses( psRC, psEncCtrlC->sigtype, psEncCtrlC->QuantOffsetType, q, psEncC->frame_length );
-
-
- /*********************************************/
- /* Encode VAD flag */
- /*********************************************/
- SKP_Silk_range_encoder( psRC, psEncC->vadFlag, SKP_Silk_vadflag_CDF );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-/*********************************************/
-/* Encode quantization indices of excitation */
-/*********************************************/
-
-SKP_INLINE SKP_int combine_and_check( /* return ok */
- SKP_int *pulses_comb, /* O */
- const SKP_int *pulses_in, /* I */
- SKP_int max_pulses, /* I max value for sum of pulses */
- SKP_int len /* I number of output values */
-)
-{
- SKP_int k, sum;
-
- for( k = 0; k < len; k++ ) {
- sum = pulses_in[ 2 * k ] + pulses_in[ 2 * k + 1 ];
- if( sum > max_pulses ) {
- return 1;
- }
- pulses_comb[ k ] = sum;
- }
-
- return 0;
-}
-
-/* Encode quantization indices of excitation */
-void SKP_Silk_encode_pulses(
- SKP_Silk_range_coder_state *psRC, /* I/O Range coder state */
- const SKP_int sigtype, /* I Sigtype */
- const SKP_int QuantOffsetType,/* I QuantOffsetType */
- const SKP_int8 q[], /* I quantization indices */
- const SKP_int frame_length /* I Frame length */
-)
-{
- SKP_int i, k, j, iter, bit, nLS, scale_down, RateLevelIndex = 0;
- SKP_int32 abs_q, minSumBits_Q6, sumBits_Q6;
- SKP_int abs_pulses[ MAX_FRAME_LENGTH ];
- SKP_int sum_pulses[ MAX_NB_SHELL_BLOCKS ];
- SKP_int nRshifts[ MAX_NB_SHELL_BLOCKS ];
- SKP_int pulses_comb[ 8 ];
- SKP_int *abs_pulses_ptr;
- const SKP_int8 *pulses_ptr;
- const SKP_uint16 *cdf_ptr;
- const SKP_int16 *nBits_ptr;
-
- SKP_memset( pulses_comb, 0, 8 * sizeof( SKP_int ) ); // Fixing Valgrind reported problem
-
- /****************************/
- /* Prepare for shell coding */
- /****************************/
- /* Calculate number of shell blocks */
- iter = frame_length / SHELL_CODEC_FRAME_LENGTH;
-
- /* Take the absolute value of the pulses */
- for( i = 0; i < frame_length; i+=4 ) {
- abs_pulses[i+0] = ( SKP_int )SKP_abs( q[ i + 0 ] );
- abs_pulses[i+1] = ( SKP_int )SKP_abs( q[ i + 1 ] );
- abs_pulses[i+2] = ( SKP_int )SKP_abs( q[ i + 2 ] );
- abs_pulses[i+3] = ( SKP_int )SKP_abs( q[ i + 3 ] );
- }
-
- /* Calc sum pulses per shell code frame */
- abs_pulses_ptr = abs_pulses;
- for( i = 0; i < iter; i++ ) {
- nRshifts[ i ] = 0;
-
- while( 1 ) {
- /* 1+1 -> 2 */
- scale_down = combine_and_check( pulses_comb, abs_pulses_ptr, SKP_Silk_max_pulses_table[ 0 ], 8 );
-
- /* 2+2 -> 4 */
- scale_down += combine_and_check( pulses_comb, pulses_comb, SKP_Silk_max_pulses_table[ 1 ], 4 );
-
- /* 4+4 -> 8 */
- scale_down += combine_and_check( pulses_comb, pulses_comb, SKP_Silk_max_pulses_table[ 2 ], 2 );
-
- /* 8+8 -> 16 */
- sum_pulses[ i ] = pulses_comb[ 0 ] + pulses_comb[ 1 ];
- if( sum_pulses[ i ] > SKP_Silk_max_pulses_table[ 3 ] ) {
- scale_down++;
- }
-
- if( scale_down ) {
- /* We need to down scale the quantization signal */
- nRshifts[ i ]++;
- for( k = 0; k < SHELL_CODEC_FRAME_LENGTH; k++ ) {
- abs_pulses_ptr[ k ] = SKP_RSHIFT( abs_pulses_ptr[ k ], 1 );
- }
- } else {
- /* Jump out of while(1) loop and go to next shell coding frame */
- break;
- }
- }
- abs_pulses_ptr += SHELL_CODEC_FRAME_LENGTH;
- }
-
- /**************/
- /* Rate level */
- /**************/
- /* find rate level that leads to fewest bits for coding of pulses per block info */
- minSumBits_Q6 = SKP_int32_MAX;
- for( k = 0; k < N_RATE_LEVELS - 1; k++ ) {
- nBits_ptr = SKP_Silk_pulses_per_block_BITS_Q6[ k ];
- sumBits_Q6 = SKP_Silk_rate_levels_BITS_Q6[sigtype][ k ];
- for( i = 0; i < iter; i++ ) {
- if( nRshifts[ i ] > 0 ) {
- sumBits_Q6 += nBits_ptr[ MAX_PULSES + 1 ];
- } else {
- sumBits_Q6 += nBits_ptr[ sum_pulses[ i ] ];
- }
- }
- if( sumBits_Q6 < minSumBits_Q6 ) {
- minSumBits_Q6 = sumBits_Q6;
- RateLevelIndex = k;
- }
- }
- SKP_Silk_range_encoder( psRC, RateLevelIndex, SKP_Silk_rate_levels_CDF[ sigtype ] );
-
- /***************************************************/
- /* Sum-Weighted-Pulses Encoding */
- /***************************************************/
- cdf_ptr = SKP_Silk_pulses_per_block_CDF[ RateLevelIndex ];
- for( i = 0; i < iter; i++ ) {
- if( nRshifts[ i ] == 0 ) {
- SKP_Silk_range_encoder( psRC, sum_pulses[ i ], cdf_ptr );
- } else {
- SKP_Silk_range_encoder( psRC, MAX_PULSES + 1, cdf_ptr );
- for( k = 0; k < nRshifts[ i ] - 1; k++ ) {
- SKP_Silk_range_encoder( psRC, MAX_PULSES + 1, SKP_Silk_pulses_per_block_CDF[ N_RATE_LEVELS - 1 ] );
- }
- SKP_Silk_range_encoder( psRC, sum_pulses[ i ], SKP_Silk_pulses_per_block_CDF[ N_RATE_LEVELS - 1 ] );
- }
- }
-
- /******************/
- /* Shell Encoding */
- /******************/
- for( i = 0; i < iter; i++ ) {
- if( sum_pulses[ i ] > 0 ) {
- SKP_Silk_shell_encoder( psRC, &abs_pulses[ i * SHELL_CODEC_FRAME_LENGTH ] );
- }
- }
-
- /****************/
- /* LSB Encoding */
- /****************/
- for( i = 0; i < iter; i++ ) {
- if( nRshifts[ i ] > 0 ) {
- pulses_ptr = &q[ i * SHELL_CODEC_FRAME_LENGTH ];
- nLS = nRshifts[ i ] - 1;
- for( k = 0; k < SHELL_CODEC_FRAME_LENGTH; k++ ) {
- abs_q = (SKP_int8)SKP_abs( pulses_ptr[ k ] );
- for( j = nLS; j > 0; j-- ) {
- bit = SKP_RSHIFT( abs_q, j ) & 1;
- SKP_Silk_range_encoder( psRC, bit, SKP_Silk_lsb_CDF );
- }
- bit = abs_q & 1;
- SKP_Silk_range_encoder( psRC, bit, SKP_Silk_lsb_CDF );
- }
- }
- }
-
- /****************/
- /* Encode signs */
- /****************/
- SKP_Silk_encode_signs( psRC, q, frame_length, sigtype, QuantOffsetType, RateLevelIndex );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
-
-/* Finds LPC vector from correlations, and converts to NLSF */
-void SKP_Silk_find_LPC_FIX(
- SKP_int NLSF_Q15[], /* O NLSFs */
- SKP_int *interpIndex, /* O NLSF interpolation index, only used for NLSF interpolation */
- const SKP_int prev_NLSFq_Q15[], /* I previous NLSFs, only used for NLSF interpolation */
- const SKP_int useInterpolatedNLSFs, /* I Flag */
- const SKP_int LPC_order, /* I LPC order */
- const SKP_int16 x[], /* I Input signal */
- const SKP_int subfr_length /* I Input signal subframe length including preceeding samples */
-)
-{
- SKP_int k;
- SKP_int32 a_Q16[ MAX_LPC_ORDER ];
- SKP_int isInterpLower, shift;
- SKP_int16 S[ MAX_LPC_ORDER ];
- SKP_int32 res_nrg0, res_nrg1;
- SKP_int rshift0, rshift1;
-
- /* Used only for LSF interpolation */
- SKP_int32 a_tmp_Q16[ MAX_LPC_ORDER ], res_nrg_interp, res_nrg, res_tmp_nrg, res_nrg_2nd;
- SKP_int res_nrg_interp_Q, res_nrg_Q, res_tmp_nrg_Q, res_nrg_2nd_Q;
- SKP_int16 a_tmp_Q12[ MAX_LPC_ORDER ];
- SKP_int NLSF0_Q15[ MAX_LPC_ORDER ];
- SKP_int16 LPC_res[ ( MAX_FRAME_LENGTH + NB_SUBFR * MAX_LPC_ORDER ) / 2 ];
-
- /* Default: no interpolation */
- *interpIndex = 4;
-
- /* Burg AR analysis for the full frame */
- SKP_Silk_burg_modified( &res_nrg, &res_nrg_Q, a_Q16, x, subfr_length, NB_SUBFR, SKP_FIX_CONST( FIND_LPC_COND_FAC, 32 ), LPC_order );
-
- SKP_Silk_bwexpander_32( a_Q16, LPC_order, SKP_FIX_CONST( FIND_LPC_CHIRP, 16 ) );
-
- if( useInterpolatedNLSFs == 1 ) {
-
- /* Optimal solution for last 10 ms */
- SKP_Silk_burg_modified( &res_tmp_nrg, &res_tmp_nrg_Q, a_tmp_Q16, x + ( NB_SUBFR >> 1 ) * subfr_length,
- subfr_length, ( NB_SUBFR >> 1 ), SKP_FIX_CONST( FIND_LPC_COND_FAC, 32 ), LPC_order );
-
- SKP_Silk_bwexpander_32( a_tmp_Q16, LPC_order, SKP_FIX_CONST( FIND_LPC_CHIRP, 16 ) );
-
- /* subtract residual energy here, as that's easier than adding it to the */
- /* residual energy of the first 10 ms in each iteration of the search below */
- shift = res_tmp_nrg_Q - res_nrg_Q;
- if( shift >= 0 ) {
- if( shift < 32 ) {
- res_nrg = res_nrg - SKP_RSHIFT( res_tmp_nrg, shift );
- }
- } else {
- SKP_assert( shift > -32 );
- res_nrg = SKP_RSHIFT( res_nrg, -shift ) - res_tmp_nrg;
- res_nrg_Q = res_tmp_nrg_Q;
- }
-
- /* Convert to NLSFs */
- SKP_Silk_A2NLSF( NLSF_Q15, a_tmp_Q16, LPC_order );
-
- /* Search over interpolation indices to find the one with lowest residual energy */
- res_nrg_2nd = SKP_int32_MAX;
- for( k = 3; k >= 0; k-- ) {
- /* Interpolate NLSFs for first half */
- SKP_Silk_interpolate( NLSF0_Q15, prev_NLSFq_Q15, NLSF_Q15, k, LPC_order );
-
- /* Convert to LPC for residual energy evaluation */
- SKP_Silk_NLSF2A_stable( a_tmp_Q12, NLSF0_Q15, LPC_order );
-
- /* Calculate residual energy with NLSF interpolation */
- SKP_memset( S, 0, LPC_order * sizeof( SKP_int16 ) );
- SKP_Silk_LPC_analysis_filter( x, a_tmp_Q12, S, LPC_res, 2 * subfr_length, LPC_order );
-
- SKP_Silk_sum_sqr_shift( &res_nrg0, &rshift0, LPC_res + LPC_order, subfr_length - LPC_order );
- SKP_Silk_sum_sqr_shift( &res_nrg1, &rshift1, LPC_res + LPC_order + subfr_length, subfr_length - LPC_order );
-
- /* Add subframe energies from first half frame */
- shift = rshift0 - rshift1;
- if( shift >= 0 ) {
- res_nrg1 = SKP_RSHIFT( res_nrg1, shift );
- res_nrg_interp_Q = -rshift0;
- } else {
- res_nrg0 = SKP_RSHIFT( res_nrg0, -shift );
- res_nrg_interp_Q = -rshift1;
- }
- res_nrg_interp = SKP_ADD32( res_nrg0, res_nrg1 );
-
- /* Compare with first half energy without NLSF interpolation, or best interpolated value so far */
- shift = res_nrg_interp_Q - res_nrg_Q;
- if( shift >= 0 ) {
- if( SKP_RSHIFT( res_nrg_interp, shift ) < res_nrg ) {
- isInterpLower = SKP_TRUE;
- } else {
- isInterpLower = SKP_FALSE;
- }
- } else {
- if( -shift < 32 ) {
- if( res_nrg_interp < SKP_RSHIFT( res_nrg, -shift ) ) {
- isInterpLower = SKP_TRUE;
- } else {
- isInterpLower = SKP_FALSE;
- }
- } else {
- isInterpLower = SKP_FALSE;
- }
- }
-
- /* Determine whether current interpolated NLSFs are best so far */
- if( isInterpLower == SKP_TRUE ) {
- /* Interpolation has lower residual energy */
- res_nrg = res_nrg_interp;
- res_nrg_Q = res_nrg_interp_Q;
- *interpIndex = k;
- }
- res_nrg_2nd = res_nrg_interp;
- res_nrg_2nd_Q = res_nrg_interp_Q;
- }
- }
-
- if( *interpIndex == 4 ) {
- /* NLSF interpolation is currently inactive, calculate NLSFs from full frame AR coefficients */
- SKP_Silk_A2NLSF( NLSF_Q15, a_Q16, LPC_order );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
-
-/* Head room for correlations */
-#define LTP_CORRS_HEAD_ROOM 2
-
-void SKP_Silk_fit_LTP(
- SKP_int32 LTP_coefs_Q16[ LTP_ORDER ],
- SKP_int16 LTP_coefs_Q14[ LTP_ORDER ]
-);
-
-void SKP_Silk_find_LTP_FIX(
- SKP_int16 b_Q14[ NB_SUBFR * LTP_ORDER ], /* O LTP coefs */
- SKP_int32 WLTP[ NB_SUBFR * LTP_ORDER * LTP_ORDER ], /* O Weight for LTP quantization */
- SKP_int *LTPredCodGain_Q7, /* O LTP coding gain */
- const SKP_int16 r_first[], /* I residual signal after LPC signal + state for first 10 ms */
- const SKP_int16 r_last[], /* I residual signal after LPC signal + state for last 10 ms */
- const SKP_int lag[ NB_SUBFR ], /* I LTP lags */
- const SKP_int32 Wght_Q15[ NB_SUBFR ], /* I weights */
- const SKP_int subfr_length, /* I subframe length */
- const SKP_int mem_offset, /* I number of samples in LTP memory */
- SKP_int corr_rshifts[ NB_SUBFR ] /* O right shifts applied to correlations */
-)
-{
- SKP_int i, k, lshift;
- const SKP_int16 *r_ptr, *lag_ptr;
- SKP_int16 *b_Q14_ptr;
-
- SKP_int32 regu;
- SKP_int32 *WLTP_ptr;
- SKP_int32 b_Q16[ LTP_ORDER ], delta_b_Q14[ LTP_ORDER ], d_Q14[ NB_SUBFR ], nrg[ NB_SUBFR ], g_Q26;
- SKP_int32 w[ NB_SUBFR ], WLTP_max, max_abs_d_Q14, max_w_bits;
-
- SKP_int32 temp32, denom32;
- SKP_int extra_shifts;
- SKP_int rr_shifts, maxRshifts, maxRshifts_wxtra, LZs;
- SKP_int32 LPC_res_nrg, LPC_LTP_res_nrg, div_Q16;
- SKP_int32 Rr[ LTP_ORDER ], rr[ NB_SUBFR ];
- SKP_int32 wd, m_Q12;
-
- b_Q14_ptr = b_Q14;
- WLTP_ptr = WLTP;
- r_ptr = &r_first[ mem_offset ];
- for( k = 0; k < NB_SUBFR; k++ ) {
- if( k == ( NB_SUBFR >> 1 ) ) { /* shift residual for last 10 ms */
- r_ptr = &r_last[ mem_offset ];
- }
- lag_ptr = r_ptr - ( lag[ k ] + LTP_ORDER / 2 );
-
- SKP_Silk_sum_sqr_shift( &rr[ k ], &rr_shifts, r_ptr, subfr_length ); /* rr[ k ] in Q( -rr_shifts ) */
-
- /* Assure headroom */
- LZs = SKP_Silk_CLZ32( rr[k] );
- if( LZs < LTP_CORRS_HEAD_ROOM ) {
- rr[ k ] = SKP_RSHIFT_ROUND( rr[ k ], LTP_CORRS_HEAD_ROOM - LZs );
- rr_shifts += ( LTP_CORRS_HEAD_ROOM - LZs );
- }
- corr_rshifts[ k ] = rr_shifts;
- SKP_Silk_corrMatrix_FIX( lag_ptr, subfr_length, LTP_ORDER, LTP_CORRS_HEAD_ROOM, WLTP_ptr, &corr_rshifts[ k ] ); /* WLTP_fix_ptr in Q( -corr_rshifts[ k ] ) */
-
- /* The correlation vector always has lower max abs value than rr and/or RR so head room is assured */
- SKP_Silk_corrVector_FIX( lag_ptr, r_ptr, subfr_length, LTP_ORDER, Rr, corr_rshifts[ k ] ); /* Rr_fix_ptr in Q( -corr_rshifts[ k ] ) */
- if( corr_rshifts[ k ] > rr_shifts ) {
- rr[ k ] = SKP_RSHIFT( rr[ k ], corr_rshifts[ k ] - rr_shifts ); /* rr[ k ] in Q( -corr_rshifts[ k ] ) */
- }
- SKP_assert( rr[ k ] >= 0 );
-
- regu = 1;
- regu = SKP_SMLAWB( regu, rr[ k ], SKP_FIX_CONST( LTP_DAMPING/3, 16 ) );
- regu = SKP_SMLAWB( regu, matrix_ptr( WLTP_ptr, 0, 0, LTP_ORDER ), SKP_FIX_CONST( LTP_DAMPING/3, 16 ) );
- regu = SKP_SMLAWB( regu, matrix_ptr( WLTP_ptr, LTP_ORDER-1, LTP_ORDER-1, LTP_ORDER ), SKP_FIX_CONST( LTP_DAMPING/3, 16 ) );
- SKP_Silk_regularize_correlations_FIX( WLTP_ptr, &rr[k], regu, LTP_ORDER );
-
- SKP_Silk_solve_LDL_FIX( WLTP_ptr, LTP_ORDER, Rr, b_Q16 ); /* WLTP_fix_ptr and Rr_fix_ptr both in Q(-corr_rshifts[k]) */
-
- /* Limit and store in Q14 */
- SKP_Silk_fit_LTP( b_Q16, b_Q14_ptr );
-
- /* Calculate residual energy */
- nrg[ k ] = SKP_Silk_residual_energy16_covar_FIX( b_Q14_ptr, WLTP_ptr, Rr, rr[ k ], LTP_ORDER, 14 ); /* nrg_fix in Q( -corr_rshifts[ k ] ) */
-
- /* temp = Wght[ k ] / ( nrg[ k ] * Wght[ k ] + 0.01f * subfr_length ); */
- extra_shifts = SKP_min_int( corr_rshifts[ k ], LTP_CORRS_HEAD_ROOM );
- denom32 = SKP_LSHIFT_SAT32( SKP_SMULWB( nrg[ k ], Wght_Q15[ k ] ), 1 + extra_shifts ) + /* Q( -corr_rshifts[ k ] + extra_shifts ) */
- SKP_RSHIFT( SKP_SMULWB( subfr_length, 655 ), corr_rshifts[ k ] - extra_shifts ); /* Q( -corr_rshifts[ k ] + extra_shifts ) */
- denom32 = SKP_max( denom32, 1 );
- SKP_assert( ((SKP_int64)Wght_Q15[ k ] << 16 ) < SKP_int32_MAX ); /* Wght always < 0.5 in Q0 */
- temp32 = SKP_DIV32( SKP_LSHIFT( ( SKP_int32 )Wght_Q15[ k ], 16 ), denom32 ); /* Q( 15 + 16 + corr_rshifts[k] - extra_shifts ) */
- temp32 = SKP_RSHIFT( temp32, 31 + corr_rshifts[ k ] - extra_shifts - 26 ); /* Q26 */
-
- /* Limit temp such that the below scaling never wraps around */
- WLTP_max = 0;
- for( i = 0; i < LTP_ORDER * LTP_ORDER; i++ ) {
- WLTP_max = SKP_max( WLTP_ptr[ i ], WLTP_max );
- }
- lshift = SKP_Silk_CLZ32( WLTP_max ) - 1 - 3; /* keep 3 bits free for vq_nearest_neighbor_fix */
- SKP_assert( 26 - 18 + lshift >= 0 );
- if( 26 - 18 + lshift < 31 ) {
- temp32 = SKP_min_32( temp32, SKP_LSHIFT( ( SKP_int32 )1, 26 - 18 + lshift ) );
- }
-
- SKP_Silk_scale_vector32_Q26_lshift_18( WLTP_ptr, temp32, LTP_ORDER * LTP_ORDER ); /* WLTP_ptr in Q( 18 - corr_rshifts[ k ] ) */
-
- w[ k ] = matrix_ptr( WLTP_ptr, ( LTP_ORDER >> 1 ), ( LTP_ORDER >> 1 ), LTP_ORDER ); /* w in Q( 18 - corr_rshifts[ k ] ) */
- SKP_assert( w[k] >= 0 );
-
- r_ptr += subfr_length;
- b_Q14_ptr += LTP_ORDER;
- WLTP_ptr += LTP_ORDER * LTP_ORDER;
- }
-
- maxRshifts = 0;
- for( k = 0; k < NB_SUBFR; k++ ) {
- maxRshifts = SKP_max_int( corr_rshifts[ k ], maxRshifts );
- }
-
- /* Compute LTP coding gain */
- if( LTPredCodGain_Q7 != NULL ) {
- LPC_LTP_res_nrg = 0;
- LPC_res_nrg = 0;
- SKP_assert( LTP_CORRS_HEAD_ROOM >= 2 ); /* Check that no overflow will happen when adding */
- for( k = 0; k < NB_SUBFR; k++ ) {
- LPC_res_nrg = SKP_ADD32( LPC_res_nrg, SKP_RSHIFT( SKP_ADD32( SKP_SMULWB( rr[ k ], Wght_Q15[ k ] ), 1 ), 1 + ( maxRshifts - corr_rshifts[ k ] ) ) ); /* Q( -maxRshifts ) */
- LPC_LTP_res_nrg = SKP_ADD32( LPC_LTP_res_nrg, SKP_RSHIFT( SKP_ADD32( SKP_SMULWB( nrg[ k ], Wght_Q15[ k ] ), 1 ), 1 + ( maxRshifts - corr_rshifts[ k ] ) ) ); /* Q( -maxRshifts ) */
- }
- LPC_LTP_res_nrg = SKP_max( LPC_LTP_res_nrg, 1 ); /* avoid division by zero */
-
- div_Q16 = SKP_DIV32_varQ( LPC_res_nrg, LPC_LTP_res_nrg, 16 );
- *LTPredCodGain_Q7 = ( SKP_int )SKP_SMULBB( 3, SKP_Silk_lin2log( div_Q16 ) - ( 16 << 7 ) );
-
- SKP_assert( *LTPredCodGain_Q7 == ( SKP_int )SKP_SAT16( SKP_MUL( 3, SKP_Silk_lin2log( div_Q16 ) - ( 16 << 7 ) ) ) );
- }
-
- /* smoothing */
- /* d = sum( B, 1 ); */
- b_Q14_ptr = b_Q14;
- for( k = 0; k < NB_SUBFR; k++ ) {
- d_Q14[ k ] = 0;
- for( i = 0; i < LTP_ORDER; i++ ) {
- d_Q14[ k ] += b_Q14_ptr[ i ];
- }
- b_Q14_ptr += LTP_ORDER;
- }
-
- /* m = ( w * d' ) / ( sum( w ) + 1e-3 ); */
-
- /* Find maximum absolute value of d_Q14 and the bits used by w in Q0 */
- max_abs_d_Q14 = 0;
- max_w_bits = 0;
- for( k = 0; k < NB_SUBFR; k++ ) {
- max_abs_d_Q14 = SKP_max_32( max_abs_d_Q14, SKP_abs( d_Q14[ k ] ) );
- /* w[ k ] is in Q( 18 - corr_rshifts[ k ] ) */
- /* Find bits needed in Q( 18 - maxRshifts ) */
- max_w_bits = SKP_max_32( max_w_bits, 32 - SKP_Silk_CLZ32( w[ k ] ) + corr_rshifts[ k ] - maxRshifts );
- }
-
- /* max_abs_d_Q14 = (5 << 15); worst case, i.e. LTP_ORDER * -SKP_int16_MIN */
- SKP_assert( max_abs_d_Q14 <= ( 5 << 15 ) );
-
- /* How many bits is needed for w*d' in Q( 18 - maxRshifts ) in the worst case, of all d_Q14's being equal to max_abs_d_Q14 */
- extra_shifts = max_w_bits + 32 - SKP_Silk_CLZ32( max_abs_d_Q14 ) - 14;
-
- /* Subtract what we got available; bits in output var plus maxRshifts */
- extra_shifts -= ( 32 - 1 - 2 + maxRshifts ); /* Keep sign bit free as well as 2 bits for accumulation */
- extra_shifts = SKP_max_int( extra_shifts, 0 );
-
- maxRshifts_wxtra = maxRshifts + extra_shifts;
-
- temp32 = SKP_RSHIFT( 262, maxRshifts + extra_shifts ) + 1; /* 1e-3f in Q( 18 - (maxRshifts + extra_shifts) ) */
- wd = 0;
- for( k = 0; k < NB_SUBFR; k++ ) {
- /* w has at least 2 bits of headroom so no overflow should happen */
- temp32 = SKP_ADD32( temp32, SKP_RSHIFT( w[ k ], maxRshifts_wxtra - corr_rshifts[ k ] ) ); /* Q( 18 - maxRshifts_wxtra ) */
- wd = SKP_ADD32( wd, SKP_LSHIFT( SKP_SMULWW( SKP_RSHIFT( w[ k ], maxRshifts_wxtra - corr_rshifts[ k ] ), d_Q14[ k ] ), 2 ) ); /* Q( 18 - maxRshifts_wxtra ) */
- }
- m_Q12 = SKP_DIV32_varQ( wd, temp32, 12 );
-
- b_Q14_ptr = b_Q14;
- for( k = 0; k < NB_SUBFR; k++ ) {
- /* w_fix[ k ] from Q( 18 - corr_rshifts[ k ] ) to Q( 16 ) */
- if( 2 - corr_rshifts[k] > 0 ) {
- temp32 = SKP_RSHIFT( w[ k ], 2 - corr_rshifts[ k ] );
- } else {
- temp32 = SKP_LSHIFT_SAT32( w[ k ], corr_rshifts[ k ] - 2 );
- }
-
- g_Q26 = SKP_MUL(
- SKP_DIV32(
- SKP_FIX_CONST( LTP_SMOOTHING, 26 ),
- SKP_RSHIFT( SKP_FIX_CONST( LTP_SMOOTHING, 26 ), 10 ) + temp32 ), /* Q10 */
- SKP_LSHIFT_SAT32( SKP_SUB_SAT32( ( SKP_int32 )m_Q12, SKP_RSHIFT( d_Q14[ k ], 2 ) ), 4 ) ); /* Q16 */
-
- temp32 = 0;
- for( i = 0; i < LTP_ORDER; i++ ) {
- delta_b_Q14[ i ] = SKP_max_16( b_Q14_ptr[ i ], 1638 ); /* 1638_Q14 = 0.1_Q0 */
- temp32 += delta_b_Q14[ i ]; /* Q14 */
- }
- temp32 = SKP_DIV32( g_Q26, temp32 ); /* Q14->Q12 */
- for( i = 0; i < LTP_ORDER; i++ ) {
- b_Q14_ptr[ i ] = SKP_LIMIT_32( ( SKP_int32 )b_Q14_ptr[ i ] + SKP_SMULWB( SKP_LSHIFT_SAT32( temp32, 4 ), delta_b_Q14[ i ] ), -16000, 28000 );
- }
- b_Q14_ptr += LTP_ORDER;
- }
-}
-
-void SKP_Silk_fit_LTP(
- SKP_int32 LTP_coefs_Q16[ LTP_ORDER ],
- SKP_int16 LTP_coefs_Q14[ LTP_ORDER ]
-)
-{
- SKP_int i;
-
- for( i = 0; i < LTP_ORDER; i++ ) {
- LTP_coefs_Q14[ i ] = ( SKP_int16 )SKP_SAT16( SKP_RSHIFT_ROUND( LTP_coefs_Q16[ i ], 2 ) );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
-
-/* Find pitch lags */
-void SKP_Silk_find_pitch_lags_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O encoder state */
- SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O encoder control */
- SKP_int16 res[], /* O residual */
- const SKP_int16 x[] /* I Speech signal */
-)
-{
- SKP_Silk_predict_state_FIX *psPredSt = &psEnc->sPred;
- SKP_int buf_len, i, scale;
- SKP_int32 thrhld_Q15, res_nrg;
- const SKP_int16 *x_buf, *x_buf_ptr;
- SKP_int16 Wsig[ FIND_PITCH_LPC_WIN_MAX ], *Wsig_ptr;
- SKP_int32 auto_corr[ MAX_FIND_PITCH_LPC_ORDER + 1 ];
- SKP_int16 rc_Q15[ MAX_FIND_PITCH_LPC_ORDER ];
- SKP_int32 A_Q24[ MAX_FIND_PITCH_LPC_ORDER ];
- SKP_int32 FiltState[ MAX_FIND_PITCH_LPC_ORDER ];
- SKP_int16 A_Q12[ MAX_FIND_PITCH_LPC_ORDER ];
-
- /******************************************/
- /* Setup buffer lengths etc based on Fs */
- /******************************************/
- buf_len = SKP_ADD_LSHIFT( psEnc->sCmn.la_pitch, psEnc->sCmn.frame_length, 1 );
-
- /* Safty check */
- SKP_assert( buf_len >= psPredSt->pitch_LPC_win_length );
-
- x_buf = x - psEnc->sCmn.frame_length;
-
- /*************************************/
- /* Estimate LPC AR coefficients */
- /*************************************/
-
- /* Calculate windowed signal */
-
- /* First LA_LTP samples */
- x_buf_ptr = x_buf + buf_len - psPredSt->pitch_LPC_win_length;
- Wsig_ptr = Wsig;
- SKP_Silk_apply_sine_window_new( Wsig_ptr, x_buf_ptr, 1, psEnc->sCmn.la_pitch );
-
- /* Middle un - windowed samples */
- Wsig_ptr += psEnc->sCmn.la_pitch;
- x_buf_ptr += psEnc->sCmn.la_pitch;
- SKP_memcpy( Wsig_ptr, x_buf_ptr, ( psPredSt->pitch_LPC_win_length - SKP_LSHIFT( psEnc->sCmn.la_pitch, 1 ) ) * sizeof( SKP_int16 ) );
-
- /* Last LA_LTP samples */
- Wsig_ptr += psPredSt->pitch_LPC_win_length - SKP_LSHIFT( psEnc->sCmn.la_pitch, 1 );
- x_buf_ptr += psPredSt->pitch_LPC_win_length - SKP_LSHIFT( psEnc->sCmn.la_pitch, 1 );
- SKP_Silk_apply_sine_window_new( Wsig_ptr, x_buf_ptr, 2, psEnc->sCmn.la_pitch );
-
- /* Calculate autocorrelation sequence */
- SKP_Silk_autocorr( auto_corr, &scale, Wsig, psPredSt->pitch_LPC_win_length, psEnc->sCmn.pitchEstimationLPCOrder + 1 );
-
- /* Add white noise, as fraction of energy */
- auto_corr[ 0 ] = SKP_SMLAWB( auto_corr[ 0 ], auto_corr[ 0 ], SKP_FIX_CONST( FIND_PITCH_WHITE_NOISE_FRACTION, 16 ) );
-
- /* Calculate the reflection coefficients using schur */
- res_nrg = SKP_Silk_schur( rc_Q15, auto_corr, psEnc->sCmn.pitchEstimationLPCOrder );
-
- /* Prediction gain */
- psEncCtrl->predGain_Q16 = SKP_DIV32_varQ( auto_corr[ 0 ], SKP_max_int( res_nrg, 1 ), 16 );
-
- /* Convert reflection coefficients to prediction coefficients */
- SKP_Silk_k2a( A_Q24, rc_Q15, psEnc->sCmn.pitchEstimationLPCOrder );
-
- /* Convert From 32 bit Q24 to 16 bit Q12 coefs */
- for( i = 0; i < psEnc->sCmn.pitchEstimationLPCOrder; i++ ) {
- A_Q12[ i ] = ( SKP_int16 )SKP_SAT16( SKP_RSHIFT( A_Q24[ i ], 12 ) );
- }
-
- /* Do BWE */
- SKP_Silk_bwexpander( A_Q12, psEnc->sCmn.pitchEstimationLPCOrder, SKP_FIX_CONST( FIND_PITCH_BANDWITH_EXPANSION, 16 ) );
-
- /*****************************************/
- /* LPC analysis filtering */
- /*****************************************/
- SKP_memset( FiltState, 0, psEnc->sCmn.pitchEstimationLPCOrder * sizeof( SKP_int32 ) ); /* Not really necessary, but Valgrind will complain otherwise */
- SKP_Silk_MA_Prediction( x_buf, A_Q12, FiltState, res, buf_len, psEnc->sCmn.pitchEstimationLPCOrder );
- SKP_memset( res, 0, psEnc->sCmn.pitchEstimationLPCOrder * sizeof( SKP_int16 ) );
-
- /* Threshold for pitch estimator */
- thrhld_Q15 = SKP_FIX_CONST( 0.45, 15 );
- thrhld_Q15 = SKP_SMLABB( thrhld_Q15, SKP_FIX_CONST( -0.004, 15 ), psEnc->sCmn.pitchEstimationLPCOrder );
- thrhld_Q15 = SKP_SMLABB( thrhld_Q15, SKP_FIX_CONST( -0.1, 7 ), psEnc->speech_activity_Q8 );
- thrhld_Q15 = SKP_SMLABB( thrhld_Q15, SKP_FIX_CONST( 0.15, 15 ), psEnc->sCmn.prev_sigtype );
- thrhld_Q15 = SKP_SMLAWB( thrhld_Q15, SKP_FIX_CONST( -0.1, 16 ), psEncCtrl->input_tilt_Q15 );
- thrhld_Q15 = SKP_SAT16( thrhld_Q15 );
-
- /*****************************************/
- /* Call pitch estimator */
- /*****************************************/
- psEncCtrl->sCmn.sigtype = SKP_Silk_pitch_analysis_core( res, psEncCtrl->sCmn.pitchL, &psEncCtrl->sCmn.lagIndex,
- &psEncCtrl->sCmn.contourIndex, &psEnc->LTPCorr_Q15, psEnc->sCmn.prevLag, psEnc->sCmn.pitchEstimationThreshold_Q16,
- ( SKP_int16 )thrhld_Q15, psEnc->sCmn.fs_kHz, psEnc->sCmn.pitchEstimationComplexity, SKP_FALSE );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-
-
-void SKP_Silk_find_pred_coefs_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O encoder state */
- SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O encoder control */
- const SKP_int16 res_pitch[] /* I Residual from pitch analysis */
-)
-{
- SKP_int i;
- SKP_int32 WLTP[ NB_SUBFR * LTP_ORDER * LTP_ORDER ];
- SKP_int32 invGains_Q16[ NB_SUBFR ], local_gains[ NB_SUBFR ], Wght_Q15[ NB_SUBFR ];
- SKP_int NLSF_Q15[ MAX_LPC_ORDER ];
- const SKP_int16 *x_ptr;
- SKP_int16 *x_pre_ptr, LPC_in_pre[ NB_SUBFR * MAX_LPC_ORDER + MAX_FRAME_LENGTH ];
- SKP_int32 tmp, min_gain_Q16;
- SKP_int LTP_corrs_rshift[ NB_SUBFR ];
-
-
- /* weighting for weighted least squares */
- min_gain_Q16 = SKP_int32_MAX >> 6;
- for( i = 0; i < NB_SUBFR; i++ ) {
- min_gain_Q16 = SKP_min( min_gain_Q16, psEncCtrl->Gains_Q16[ i ] );
- }
- for( i = 0; i < NB_SUBFR; i++ ) {
- /* Divide to Q16 */
- SKP_assert( psEncCtrl->Gains_Q16[ i ] > 0 );
- /* Invert and normalize gains, and ensure that maximum invGains_Q16 is within range of a 16 bit int */
- invGains_Q16[ i ] = SKP_DIV32_varQ( min_gain_Q16, psEncCtrl->Gains_Q16[ i ], 16 - 2 );
-
- /* Ensure Wght_Q15 a minimum value 1 */
- invGains_Q16[ i ] = SKP_max( invGains_Q16[ i ], 363 );
-
- /* Square the inverted gains */
- SKP_assert( invGains_Q16[ i ] == SKP_SAT16( invGains_Q16[ i ] ) );
- tmp = SKP_SMULWB( invGains_Q16[ i ], invGains_Q16[ i ] );
- Wght_Q15[ i ] = SKP_RSHIFT( tmp, 1 );
-
- /* Invert the inverted and normalized gains */
- local_gains[ i ] = SKP_DIV32( ( 1 << 16 ), invGains_Q16[ i ] );
- }
-
- if( psEncCtrl->sCmn.sigtype == SIG_TYPE_VOICED ) {
- /**********/
- /* VOICED */
- /**********/
- SKP_assert( psEnc->sCmn.frame_length - psEnc->sCmn.predictLPCOrder >= psEncCtrl->sCmn.pitchL[ 0 ] + LTP_ORDER / 2 );
-
- /* LTP analysis */
- SKP_Silk_find_LTP_FIX( psEncCtrl->LTPCoef_Q14, WLTP, &psEncCtrl->LTPredCodGain_Q7, res_pitch,
- res_pitch + SKP_RSHIFT( psEnc->sCmn.frame_length, 1 ), psEncCtrl->sCmn.pitchL, Wght_Q15,
- psEnc->sCmn.subfr_length, psEnc->sCmn.frame_length, LTP_corrs_rshift );
-
-
- /* Quantize LTP gain parameters */
- SKP_Silk_quant_LTP_gains_FIX( psEncCtrl->LTPCoef_Q14, psEncCtrl->sCmn.LTPIndex, &psEncCtrl->sCmn.PERIndex,
- WLTP, psEnc->mu_LTP_Q8, psEnc->sCmn.LTPQuantLowComplexity );
-
- /* Control LTP scaling */
- SKP_Silk_LTP_scale_ctrl_FIX( psEnc, psEncCtrl );
-
- /* Create LTP residual */
- SKP_Silk_LTP_analysis_filter_FIX( LPC_in_pre, psEnc->x_buf + psEnc->sCmn.frame_length - psEnc->sCmn.predictLPCOrder,
- psEncCtrl->LTPCoef_Q14, psEncCtrl->sCmn.pitchL, invGains_Q16, psEnc->sCmn.subfr_length, psEnc->sCmn.predictLPCOrder );
-
- } else {
- /************/
- /* UNVOICED */
- /************/
- /* Create signal with prepended subframes, scaled by inverse gains */
- x_ptr = psEnc->x_buf + psEnc->sCmn.frame_length - psEnc->sCmn.predictLPCOrder;
- x_pre_ptr = LPC_in_pre;
- for( i = 0; i < NB_SUBFR; i++ ) {
- SKP_Silk_scale_copy_vector16( x_pre_ptr, x_ptr, invGains_Q16[ i ],
- psEnc->sCmn.subfr_length + psEnc->sCmn.predictLPCOrder );
- x_pre_ptr += psEnc->sCmn.subfr_length + psEnc->sCmn.predictLPCOrder;
- x_ptr += psEnc->sCmn.subfr_length;
- }
-
- SKP_memset( psEncCtrl->LTPCoef_Q14, 0, NB_SUBFR * LTP_ORDER * sizeof( SKP_int16 ) );
- psEncCtrl->LTPredCodGain_Q7 = 0;
- }
-
- /* LPC_in_pre contains the LTP-filtered input for voiced, and the unfiltered input for unvoiced */
- TIC(FIND_LPC)
- SKP_Silk_find_LPC_FIX( NLSF_Q15, &psEncCtrl->sCmn.NLSFInterpCoef_Q2, psEnc->sPred.prev_NLSFq_Q15,
- psEnc->sCmn.useInterpolatedNLSFs * ( 1 - psEnc->sCmn.first_frame_after_reset ), psEnc->sCmn.predictLPCOrder,
- LPC_in_pre, psEnc->sCmn.subfr_length + psEnc->sCmn.predictLPCOrder );
- TOC(FIND_LPC)
-
-
- /* Quantize LSFs */
- TIC(PROCESS_LSFS)
- SKP_Silk_process_NLSFs_FIX( psEnc, psEncCtrl, NLSF_Q15 );
- TOC(PROCESS_LSFS)
-
- /* Calculate residual energy using quantized LPC coefficients */
- SKP_Silk_residual_energy_FIX( psEncCtrl->ResNrg, psEncCtrl->ResNrgQ, LPC_in_pre, psEncCtrl->PredCoef_Q12, local_gains,
- psEnc->sCmn.subfr_length, psEnc->sCmn.predictLPCOrder );
-
- /* Copy to prediction struct for use in next frame for fluctuation reduction */
- SKP_memcpy( psEnc->sPred.prev_NLSFq_Q15, NLSF_Q15, psEnc->sCmn.predictLPCOrder * sizeof( SKP_int ) );
-
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-#define OFFSET ( ( MIN_QGAIN_DB * 128 ) / 6 + 16 * 128 )
-#define SCALE_Q16 ( ( 65536 * ( N_LEVELS_QGAIN - 1 ) ) / ( ( ( MAX_QGAIN_DB - MIN_QGAIN_DB ) * 128 ) / 6 ) )
-#define INV_SCALE_Q16 ( ( 65536 * ( ( ( MAX_QGAIN_DB - MIN_QGAIN_DB ) * 128 ) / 6 ) ) / ( N_LEVELS_QGAIN - 1 ) )
-
-/* Gain scalar quantization with hysteresis, uniform on log scale */
-void SKP_Silk_gains_quant(
- SKP_int ind[ NB_SUBFR ], /* O gain indices */
- SKP_int32 gain_Q16[ NB_SUBFR ], /* I/O gains (quantized out) */
- SKP_int *prev_ind, /* I/O last index in previous frame */
- const SKP_int conditional /* I first gain is delta coded if 1 */
-)
-{
- SKP_int k;
-
- for( k = 0; k < NB_SUBFR; k++ ) {
- /* Add half of previous quantization error, convert to log scale, scale, floor() */
- ind[ k ] = SKP_SMULWB( SCALE_Q16, SKP_Silk_lin2log( gain_Q16[ k ] ) - OFFSET );
-
- /* Round towards previous quantized gain (hysteresis) */
- if( ind[ k ] < *prev_ind ) {
- ind[ k ]++;
- }
-
- /* Compute delta indices and limit */
- if( k == 0 && conditional == 0 ) {
- /* Full index */
- ind[ k ] = SKP_LIMIT_int( ind[ k ], 0, N_LEVELS_QGAIN - 1 );
- ind[ k ] = SKP_max_int( ind[ k ], *prev_ind + MIN_DELTA_GAIN_QUANT );
- *prev_ind = ind[ k ];
- } else {
- /* Delta index */
- ind[ k ] = SKP_LIMIT_int( ind[ k ] - *prev_ind, MIN_DELTA_GAIN_QUANT, MAX_DELTA_GAIN_QUANT );
- /* Accumulate deltas */
- *prev_ind += ind[ k ];
- /* Shift to make non-negative */
- ind[ k ] -= MIN_DELTA_GAIN_QUANT;
- }
-
- /* Convert to linear scale and scale */
- gain_Q16[ k ] = SKP_Silk_log2lin( SKP_min_32( SKP_SMULWB( INV_SCALE_Q16, *prev_ind ) + OFFSET, 3967 ) ); /* 3967 = 31 in Q7 */
- }
-}
-
-/* Gains scalar dequantization, uniform on log scale */
-void SKP_Silk_gains_dequant(
- SKP_int32 gain_Q16[ NB_SUBFR ], /* O quantized gains */
- const SKP_int ind[ NB_SUBFR ], /* I gain indices */
- SKP_int *prev_ind, /* I/O last index in previous frame */
- const SKP_int conditional /* I first gain is delta coded if 1 */
-)
-{
- SKP_int k;
-
- for( k = 0; k < NB_SUBFR; k++ ) {
- if( k == 0 && conditional == 0 ) {
- *prev_ind = ind[ k ];
- } else {
- /* Delta index */
- *prev_ind += ind[ k ] + MIN_DELTA_GAIN_QUANT;
- }
-
- /* Convert to linear scale and scale */
- gain_Q16[ k ] = SKP_Silk_log2lin( SKP_min_32( SKP_SMULWB( INV_SCALE_Q16, *prev_ind ) + OFFSET, 3967 ) ); /* 3967 = 31 in Q7 */
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-
-/*********************************/
-/* Initialize Silk Encoder state */
-/*********************************/
-SKP_int SKP_Silk_init_encoder_FIX(
- SKP_Silk_encoder_state_FIX *psEnc /* I/O Pointer to Silk FIX encoder state */
-) {
- SKP_int ret = 0;
- /* Clear the entire encoder state */
- SKP_memset( psEnc, 0, sizeof( SKP_Silk_encoder_state_FIX ) );
-
-#if HIGH_PASS_INPUT
- psEnc->variable_HP_smth1_Q15 = 200844; /* = SKP_Silk_log2(70)_Q0; */
- psEnc->variable_HP_smth2_Q15 = 200844; /* = SKP_Silk_log2(70)_Q0; */
-#endif
-
- /* Used to deactivate e.g. LSF interpolation and fluctuation reduction */
- psEnc->sCmn.first_frame_after_reset = 1;
-
- /* Initialize Silk VAD */
- ret += SKP_Silk_VAD_Init( &psEnc->sCmn.sVAD );
-
- /* Initialize NSQ */
- psEnc->sNSQ.prev_inv_gain_Q16 = 65536;
- psEnc->sNSQ_LBRR.prev_inv_gain_Q16 = 65536;
-
- return( ret );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_inner_prod_aligned.c *
- * *
- * *
- * Copyright 2008-2010 (c), Skype Limited *
- * Date: 080601 *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* sum= for(i=0;i<len;i++)inVec1[i]*inVec2[i]; --- inner product */
-/* Note for ARM asm: */
-/* * inVec1 and inVec2 should be at least 2 byte aligned. (Or defined as short/int16) */
-/* * len should be positive 16bit integer. */
-/* * only when len>6, memory access can be reduced by half. */
-
-SKP_int32 SKP_Silk_inner_prod_aligned(
- const SKP_int16* const inVec1, /* I input vector 1 */
- const SKP_int16* const inVec2, /* I input vector 2 */
- const SKP_int len /* I vector lengths */
-)
-{
- SKP_int i;
- SKP_int32 sum = 0;
- for( i = 0; i < len; i++ ) {
- sum = SKP_SMLABB( sum, inVec1[ i ], inVec2[ i ] );
- }
- return sum;
-}
-
-SKP_int64 SKP_Silk_inner_prod16_aligned_64(
- const SKP_int16 *inVec1, /* I input vector 1 */
- const SKP_int16 *inVec2, /* I input vector 2 */
- const SKP_int len /* I vector lengths */
-)
-{
- SKP_int i;
- SKP_int64 sum = 0;
- for( i = 0; i < len; i++ ) {
- sum = SKP_SMLALBB( sum, inVec1[ i ], inVec2[ i ] );
- }
- return sum;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-/* Interpolate two vectors */
-void SKP_Silk_interpolate(
- SKP_int xi[ MAX_LPC_ORDER ], /* O interpolated vector */
- const SKP_int x0[ MAX_LPC_ORDER ], /* I first vector */
- const SKP_int x1[ MAX_LPC_ORDER ], /* I second vector */
- const SKP_int ifact_Q2, /* I interp. factor, weight on 2nd vector */
- const SKP_int d /* I number of parameters */
-)
-{
- SKP_int i;
-
- SKP_assert( ifact_Q2 >= 0 );
- SKP_assert( ifact_Q2 <= ( 1 << 2 ) );
-
- for( i = 0; i < d; i++ ) {
- xi[ i ] = ( SKP_int )( ( SKP_int32 )x0[ i ] + SKP_RSHIFT( SKP_MUL( ( SKP_int32 )x1[ i ] - ( SKP_int32 )x0[ i ], ifact_Q2 ), 2 ) );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_k2a.c *
- * *
- * Step up function, converts reflection coefficients to prediction *
- * coefficients *
- * *
- * Copyright 2008 (c), Skype Limited *
- * Date: 080103 *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Step up function, converts reflection coefficients to prediction coefficients */
-void SKP_Silk_k2a(
- SKP_int32 *A_Q24, /* O: Prediction coefficients [order] Q24 */
- const SKP_int16 *rc_Q15, /* I: Reflection coefficients [order] Q15 */
- const SKP_int32 order /* I: Prediction order */
-)
-{
- SKP_int k, n;
- SKP_int32 Atmp[ SKP_Silk_MAX_ORDER_LPC ];
-
- for( k = 0; k < order; k++ ) {
- for( n = 0; n < k; n++ ) {
- Atmp[ n ] = A_Q24[ n ];
- }
- for( n = 0; n < k; n++ ) {
- A_Q24[ n ] = SKP_SMLAWB( A_Q24[ n ], SKP_LSHIFT( Atmp[ k - n - 1 ], 1 ), rc_Q15[ k ] );
- }
- A_Q24[ k ] = -SKP_LSHIFT( (SKP_int32)rc_Q15[ k ], 9 );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_k2a.c *
- * *
- * Step up function, converts reflection coefficients to prediction *
- * coefficients *
- * *
- * Copyright 2008 (c), Skype Limited *
- * Date: 080103 *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Step up function, converts reflection coefficients to prediction coefficients */
-void SKP_Silk_k2a_Q16(
- SKP_int32 *A_Q24, /* O: Prediction coefficients [order] Q24 */
- const SKP_int32 *rc_Q16, /* I: Reflection coefficients [order] Q16 */
- const SKP_int32 order /* I: Prediction order */
-)
-{
- SKP_int k, n;
- SKP_int32 Atmp[ SKP_Silk_MAX_ORDER_LPC ];
-
- for( k = 0; k < order; k++ ) {
- for( n = 0; n < k; n++ ) {
- Atmp[ n ] = A_Q24[ n ];
- }
- for( n = 0; n < k; n++ ) {
- A_Q24[ n ] = SKP_SMLAWW( A_Q24[ n ], Atmp[ k - n - 1 ], rc_Q16[ k ] );
- }
- A_Q24[ k ] = -SKP_LSHIFT( rc_Q16[ k ], 8 );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_lin2log.c *
- * *
- * Convert input to a log scale *
- * Approximation of 128 * log2() *
- * *
- * Copyright 2006 (c), Skype Limited *
- * Date: 060221 *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-/* Approximation of 128 * log2() (very close inverse of approx 2^() below) */
-/* Convert input to a log scale */
-SKP_int32 SKP_Silk_lin2log( const SKP_int32 inLin ) /* I: Input in linear scale */
-{
- SKP_int32 lz, frac_Q7;
-
- SKP_Silk_CLZ_FRAC( inLin, &lz, &frac_Q7 );
-
- /* Piece-wise parabolic approximation */
- return( SKP_LSHIFT( 31 - lz, 7 ) + SKP_SMLAWB( frac_Q7, SKP_MUL( frac_Q7, 128 - frac_Q7 ), 179 ) );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_log2lin.c *
- * *
- * Convert input to a linear scale *
- * *
- * Copyright 2006 (c), Skype Limited *
- * Date: 060221 *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Approximation of 2^() (very close inverse of SKP_Silk_lin2log()) */
-/* Convert input to a linear scale */
-SKP_int32 SKP_Silk_log2lin( const SKP_int32 inLog_Q7 ) /* I: Input on log scale */
-{
- SKP_int32 out, frac_Q7;
-
- if( inLog_Q7 < 0 ) {
- return 0;
- }
-
- out = SKP_LSHIFT( 1, SKP_RSHIFT( inLog_Q7, 7 ) );
- frac_Q7 = inLog_Q7 & 0x7F;
- if( inLog_Q7 < 2048 ) {
- /* Piece-wise parabolic approximation */
- out = SKP_ADD_RSHIFT( out, SKP_MUL( out, SKP_SMLAWB( frac_Q7, SKP_MUL( frac_Q7, 128 - frac_Q7 ), -174 ) ), 7 );
- } else {
- /* Piece-wise parabolic approximation */
- out = SKP_MLA( out, SKP_RSHIFT( out, 7 ), SKP_SMLAWB( frac_Q7, SKP_MUL( frac_Q7, 128 - frac_Q7 ), -174 ) );
- }
- return out;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef _SKP_SILK_API_C_H_
-#define _SKP_SILK_API_C_H_
-
-// This is an inline header file for general platform.
-
-// (a32 * (SKP_int32)((SKP_int16)(b32))) >> 16 output have to be 32bit int
-#define SKP_SMULWB(a32, b32) ((((a32) >> 16) * (SKP_int32)((SKP_int16)(b32))) + ((((a32) & 0x0000FFFF) * (SKP_int32)((SKP_int16)(b32))) >> 16))
-
-// a32 + (b32 * (SKP_int32)((SKP_int16)(c32))) >> 16 output have to be 32bit int
-#define SKP_SMLAWB(a32, b32, c32) ((a32) + ((((b32) >> 16) * (SKP_int32)((SKP_int16)(c32))) + ((((b32) & 0x0000FFFF) * (SKP_int32)((SKP_int16)(c32))) >> 16)))
-
-// (a32 * (b32 >> 16)) >> 16
-#define SKP_SMULWT(a32, b32) (((a32) >> 16) * ((b32) >> 16) + ((((a32) & 0x0000FFFF) * ((b32) >> 16)) >> 16))
-
-// a32 + (b32 * (c32 >> 16)) >> 16
-#define SKP_SMLAWT(a32, b32, c32) ((a32) + (((b32) >> 16) * ((c32) >> 16)) + ((((b32) & 0x0000FFFF) * ((c32) >> 16)) >> 16))
-
-// (SKP_int32)((SKP_int16)(a3))) * (SKP_int32)((SKP_int16)(b32)) output have to be 32bit int
-#define SKP_SMULBB(a32, b32) ((SKP_int32)((SKP_int16)(a32)) * (SKP_int32)((SKP_int16)(b32)))
-
-// a32 + (SKP_int32)((SKP_int16)(b32)) * (SKP_int32)((SKP_int16)(c32)) output have to be 32bit int
-#define SKP_SMLABB(a32, b32, c32) ((a32) + ((SKP_int32)((SKP_int16)(b32))) * (SKP_int32)((SKP_int16)(c32)))
-
-// (SKP_int32)((SKP_int16)(a32)) * (b32 >> 16)
-#define SKP_SMULBT(a32, b32) ((SKP_int32)((SKP_int16)(a32)) * ((b32) >> 16))
-
-// a32 + (SKP_int32)((SKP_int16)(b32)) * (c32 >> 16)
-#define SKP_SMLABT(a32, b32, c32) ((a32) + ((SKP_int32)((SKP_int16)(b32))) * ((c32) >> 16))
-
-// a64 + (b32 * c32)
-#define SKP_SMLAL(a64, b32, c32) (SKP_ADD64((a64), ((SKP_int64)(b32) * (SKP_int64)(c32))))
-
-// (a32 * b32) >> 16
-#define SKP_SMULWW(a32, b32) SKP_MLA(SKP_SMULWB((a32), (b32)), (a32), SKP_RSHIFT_ROUND((b32), 16))
-
-// a32 + ((b32 * c32) >> 16)
-#define SKP_SMLAWW(a32, b32, c32) SKP_MLA(SKP_SMLAWB((a32), (b32), (c32)), (b32), SKP_RSHIFT_ROUND((c32), 16))
-
-/* add/subtract with output saturated */
-#define SKP_ADD_SAT32(a, b) ((((a) + (b)) & 0x80000000) == 0 ? \
- ((((a) & (b)) & 0x80000000) != 0 ? SKP_int32_MIN : (a)+(b)) : \
- ((((a) | (b)) & 0x80000000) == 0 ? SKP_int32_MAX : (a)+(b)) )
-
-#define SKP_SUB_SAT32(a, b) ((((a)-(b)) & 0x80000000) == 0 ? \
- (( (a) & ((b)^0x80000000) & 0x80000000) ? SKP_int32_MIN : (a)-(b)) : \
- ((((a)^0x80000000) & (b) & 0x80000000) ? SKP_int32_MAX : (a)-(b)) )
-
-SKP_INLINE SKP_int32 SKP_Silk_CLZ16(SKP_int16 in16)
-{
- SKP_int32 out32 = 0;
- if( in16 == 0 ) {
- return 16;
- }
- /* test nibbles */
- if( in16 & 0xFF00 ) {
- if( in16 & 0xF000 ) {
- in16 >>= 12;
- } else {
- out32 += 4;
- in16 >>= 8;
- }
- } else {
- if( in16 & 0xFFF0 ) {
- out32 += 8;
- in16 >>= 4;
- } else {
- out32 += 12;
- }
- }
- /* test bits and return */
- if( in16 & 0xC ) {
- if( in16 & 0x8 )
- return out32 + 0;
- else
- return out32 + 1;
- } else {
- if( in16 & 0xE )
- return out32 + 2;
- else
- return out32 + 3;
- }
-}
-
-SKP_INLINE SKP_int32 SKP_Silk_CLZ32(SKP_int32 in32)
-{
- /* test highest 16 bits and convert to SKP_int16 */
- if( in32 & 0xFFFF0000 ) {
- return SKP_Silk_CLZ16((SKP_int16)(in32 >> 16));
- } else {
- return SKP_Silk_CLZ16((SKP_int16)in32) + 16;
- }
-}
-
-#endif //_SKP_SILK_API_C_H_
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_MAIN_H
-#define SKP_SILK_MAIN_H
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_define.h"
-#include "SKP_Silk_structs.h"
-#include "SKP_Silk_tables.h"
-#include "SKP_Silk_PLC.h"
-
-
-/* Encodes signs of excitation */
-void SKP_Silk_encode_signs(
- SKP_Silk_range_coder_state *psRC, /* I/O Range coder state */
- const SKP_int8 q[], /* I pulse signal */
- const SKP_int length, /* I length of input */
- const SKP_int sigtype, /* I Signal type */
- const SKP_int QuantOffsetType, /* I Quantization offset type */
- const SKP_int RateLevelIndex /* I Rate Level Index */
-);
-
-/* Decodes signs of excitation */
-void SKP_Silk_decode_signs(
- SKP_Silk_range_coder_state *psRC, /* I/O Range coder state */
- SKP_int q[], /* I/O pulse signal */
- const SKP_int length, /* I length of output */
- const SKP_int sigtype, /* I Signal type */
- const SKP_int QuantOffsetType, /* I Quantization offset type */
- const SKP_int RateLevelIndex /* I Rate Level Index */
-);
-
-/* Control internal sampling rate */
-SKP_int SKP_Silk_control_audio_bandwidth(
- SKP_Silk_encoder_state *psEncC, /* I/O Pointer to Silk encoder state */
- const SKP_int32 TargetRate_bps /* I Target max bitrate (bps) */
-);
-
-/***************/
-/* Shell coder */
-/***************/
-
-/* Encode quantization indices of excitation */
-void SKP_Silk_encode_pulses(
- SKP_Silk_range_coder_state *psRC, /* I/O Range coder state */
- const SKP_int sigtype, /* I Sigtype */
- const SKP_int QuantOffsetType, /* I QuantOffsetType */
- const SKP_int8 q[], /* I quantization indices */
- const SKP_int frame_length /* I Frame length */
-);
-
-/* Shell encoder, operates on one shell code frame of 16 pulses */
-void SKP_Silk_shell_encoder(
- SKP_Silk_range_coder_state *psRC, /* I/O compressor data structure */
- const SKP_int *pulses0 /* I data: nonnegative pulse amplitudes */
-);
-
-/* Shell decoder, operates on one shell code frame of 16 pulses */
-void SKP_Silk_shell_decoder(
- SKP_int *pulses0, /* O data: nonnegative pulse amplitudes */
- SKP_Silk_range_coder_state *psRC, /* I/O compressor data structure */
- const SKP_int pulses4 /* I number of pulses per pulse-subframe */
-);
-
-/***************/
-/* Range coder */
-/***************/
-/* Range encoder for one symbol */
-void SKP_Silk_range_encoder(
- SKP_Silk_range_coder_state *psRC, /* I/O compressor data structure */
- const SKP_int data, /* I uncompressed data */
- const SKP_uint16 prob[] /* I cumulative density functions */
-);
-
-/* Range encoder for multiple symbols */
-void SKP_Silk_range_encoder_multi(
- SKP_Silk_range_coder_state *psRC, /* I/O compressor data structure */
- const SKP_int data[], /* I uncompressed data [nSymbols] */
- const SKP_uint16 * const prob[], /* I cumulative density functions */
- const SKP_int nSymbols /* I number of data symbols */
-);
-
-/* Range decoder for one symbol */
-void SKP_Silk_range_decoder(
- SKP_int data[], /* O uncompressed data */
- SKP_Silk_range_coder_state *psRC, /* I/O compressor data structure */
- const SKP_uint16 prob[], /* I cumulative density function */
- SKP_int probIx /* I initial (middle) entry of cdf */
-);
-
-/* Range decoder for multiple symbols */
-void SKP_Silk_range_decoder_multi(
- SKP_int data[], /* O uncompressed data [nSymbols] */
- SKP_Silk_range_coder_state *psRC, /* I/O compressor data structure */
- const SKP_uint16 * const prob[], /* I cumulative density functions */
- const SKP_int probStartIx[], /* I initial (middle) entries of cdfs [nSymbols] */
- const SKP_int nSymbols /* I number of data symbols */
-);
-
-/* Initialize range coder structure for encoder */
-void SKP_Silk_range_enc_init(
- SKP_Silk_range_coder_state *psRC /* O compressor data structure */
-);
-
-/* Initialize range coder structure for decoder */
-void SKP_Silk_range_dec_init(
- SKP_Silk_range_coder_state *psRC, /* O compressor data structure */
- const SKP_uint8 buffer[], /* I buffer for compressed data [bufferLength] */
- const SKP_int32 bufferLength /* I buffer length (in bytes) */
-);
-
-/* Determine length of bitstream */
-SKP_int SKP_Silk_range_coder_get_length( /* O returns number of BITS in stream */
- const SKP_Silk_range_coder_state *psRC, /* I compressed data structure */
- SKP_int *nBytes /* O number of BYTES in stream */
-);
-
-/* Write decodable stream to buffer, and determine its length */
-void SKP_Silk_range_enc_wrap_up(
- SKP_Silk_range_coder_state *psRC /* I/O compressed data structure */
-);
-
-/* Check that any remaining bits in the last byte are set to 1 */
-void SKP_Silk_range_coder_check_after_decoding(
- SKP_Silk_range_coder_state *psRC /* I/O compressed data structure */
-);
-
-/* Gain scalar quantization with hysteresis, uniform on log scale */
-void SKP_Silk_gains_quant(
- SKP_int ind[ NB_SUBFR ], /* O gain indices */
- SKP_int32 gain_Q16[ NB_SUBFR ], /* I/O gains (quantized out) */
- SKP_int *prev_ind, /* I/O last index in previous frame */
- const SKP_int conditional /* I first gain is delta coded if 1 */
-);
-
-/* Gains scalar dequantization, uniform on log scale */
-void SKP_Silk_gains_dequant(
- SKP_int32 gain_Q16[ NB_SUBFR ], /* O quantized gains */
- const SKP_int ind[ NB_SUBFR ], /* I gain indices */
- SKP_int *prev_ind, /* I/O last index in previous frame */
- const SKP_int conditional /* I first gain is delta coded if 1 */
-);
-
-/* Convert NLSF parameters to stable AR prediction filter coefficients */
-void SKP_Silk_NLSF2A_stable(
- SKP_int16 pAR_Q12[ MAX_LPC_ORDER ], /* O Stabilized AR coefs [LPC_order] */
- const SKP_int pNLSF[ MAX_LPC_ORDER ], /* I NLSF vector [LPC_order] */
- const SKP_int LPC_order /* I LPC/LSF order */
-);
-
-/* Interpolate two vectors */
-void SKP_Silk_interpolate(
- SKP_int xi[ MAX_LPC_ORDER ], /* O interpolated vector */
- const SKP_int x0[ MAX_LPC_ORDER ], /* I first vector */
- const SKP_int x1[ MAX_LPC_ORDER ], /* I second vector */
- const SKP_int ifact_Q2, /* I interp. factor, weight on 2nd vector */
- const SKP_int d /* I number of parameters */
-);
-
-/***********************************/
-/* Noise shaping quantization (NSQ)*/
-/***********************************/
-void SKP_Silk_NSQ(
- SKP_Silk_encoder_state *psEncC, /* I/O Encoder State */
- SKP_Silk_encoder_control *psEncCtrlC, /* I Encoder Control */
- SKP_Silk_nsq_state *NSQ, /* I/O NSQ state */
- const SKP_int16 x[], /* I prefiltered input signal */
- SKP_int8 q[], /* O quantized qulse signal */
- const SKP_int LSFInterpFactor_Q2, /* I LSF interpolation factor in Q2 */
- const SKP_int16 PredCoef_Q12[ 2 * MAX_LPC_ORDER ], /* I Short term prediction coefficients */
- const SKP_int16 LTPCoef_Q14[ LTP_ORDER * NB_SUBFR ], /* I Long term prediction coefficients */
- const SKP_int16 AR2_Q13[ NB_SUBFR * MAX_SHAPE_LPC_ORDER ], /* I */
- const SKP_int HarmShapeGain_Q14[ NB_SUBFR ], /* I */
- const SKP_int Tilt_Q14[ NB_SUBFR ], /* I Spectral tilt */
- const SKP_int32 LF_shp_Q14[ NB_SUBFR ], /* I */
- const SKP_int32 Gains_Q16[ NB_SUBFR ], /* I */
- const SKP_int Lambda_Q10, /* I */
- const SKP_int LTP_scale_Q14 /* I LTP state scaling */
-);
-
-/* Noise shaping using delayed decision */
-void SKP_Silk_NSQ_del_dec(
- SKP_Silk_encoder_state *psEncC, /* I/O Encoder State */
- SKP_Silk_encoder_control *psEncCtrlC, /* I Encoder Control */
- SKP_Silk_nsq_state *NSQ, /* I/O NSQ state */
- const SKP_int16 x[], /* I Prefiltered input signal */
- SKP_int8 q[], /* O Quantized pulse signal */
- const SKP_int LSFInterpFactor_Q2, /* I LSF interpolation factor in Q2 */
- const SKP_int16 PredCoef_Q12[ 2 * MAX_LPC_ORDER ], /* I Prediction coefs */
- const SKP_int16 LTPCoef_Q14[ LTP_ORDER * NB_SUBFR ], /* I LT prediction coefs */
- const SKP_int16 AR2_Q13[ NB_SUBFR * MAX_SHAPE_LPC_ORDER ], /* I */
- const SKP_int HarmShapeGain_Q14[ NB_SUBFR ], /* I */
- const SKP_int Tilt_Q14[ NB_SUBFR ], /* I Spectral tilt */
- const SKP_int32 LF_shp_Q14[ NB_SUBFR ], /* I */
- const SKP_int32 Gains_Q16[ NB_SUBFR ], /* I */
- const SKP_int Lambda_Q10, /* I */
- const SKP_int LTP_scale_Q14 /* I LTP state scaling */
-);
-
-/************/
-/* Silk VAD */
-/************/
-/* Initialize the Silk VAD */
-SKP_int SKP_Silk_VAD_Init( /* O Return value, 0 if success */
- SKP_Silk_VAD_state *psSilk_VAD /* I/O Pointer to Silk VAD state */
-);
-
-/* Silk VAD noise level estimation */
-void SKP_Silk_VAD_GetNoiseLevels(
- const SKP_int32 pX[ VAD_N_BANDS ], /* I subband energies */
- SKP_Silk_VAD_state *psSilk_VAD /* I/O Pointer to Silk VAD state */
-);
-
-/* Get speech activity level in Q8 */
-SKP_int SKP_Silk_VAD_GetSA_Q8( /* O Return value, 0 if success */
- SKP_Silk_VAD_state *psSilk_VAD, /* I/O Silk VAD state */
- SKP_int *pSA_Q8, /* O Speech activity level in Q8 */
- SKP_int *pSNR_dB_Q7, /* O SNR for current frame in Q7 */
- SKP_int pQuality_Q15[ VAD_N_BANDS ], /* O Smoothed SNR for each band */
- SKP_int *pTilt_Q15, /* O current frame's frequency tilt */
- const SKP_int16 pIn[], /* I PCM input [framelength] */
- const SKP_int framelength /* I Input frame length */
-);
-
-/* Detect signal in 8 - 12 khz range */
-void SKP_Silk_detect_SWB_input(
- SKP_Silk_detect_SWB_state *psSWBdetect, /* I/O Encoder state */
- const SKP_int16 samplesIn[], /* I Input to encoder */
- SKP_int nSamplesIn /* I Length of input */
-);
-
-#if SWITCH_TRANSITION_FILTERING
-/* Low-pass filter with variable cutoff frequency based on */
-/* piece-wise linear interpolation between elliptic filters */
-/* Start by setting transition_frame_no = 1; */
-void SKP_Silk_LP_variable_cutoff(
- SKP_Silk_LP_state *psLP, /* I/O LP filter state */
- SKP_int16 *out, /* O Low-pass filtered output signal */
- const SKP_int16 *in, /* I Input signal */
- const SKP_int frame_length /* I Frame length */
-);
-#endif
-
-/****************************************************/
-/* Decoder Functions */
-/****************************************************/
-SKP_int SKP_Silk_create_decoder(
- SKP_Silk_decoder_state **ppsDec /* I/O Decoder state pointer pointer */
-);
-
-SKP_int SKP_Silk_free_decoder(
- SKP_Silk_decoder_state *psDec /* I/O Decoder state pointer */
-);
-
-SKP_int SKP_Silk_init_decoder(
- SKP_Silk_decoder_state *psDec /* I/O Decoder state pointer */
-);
-
-/* Set decoder sampling rate */
-void SKP_Silk_decoder_set_fs(
- SKP_Silk_decoder_state *psDec, /* I/O Decoder state pointer */
- SKP_int fs_kHz /* I Sampling frequency (kHz) */
-);
-
-/****************/
-/* Decode frame */
-/****************/
-SKP_int SKP_Silk_decode_frame(
- SKP_Silk_decoder_state *psDec, /* I/O Pointer to Silk decoder state */
- SKP_int16 pOut[], /* O Pointer to output speech frame */
- SKP_int16 *pN, /* O Pointer to size of output frame */
- const SKP_uint8 pCode[], /* I Pointer to payload */
- const SKP_int nBytes, /* I Payload length */
- SKP_int action, /* I Action from Jitter Buffer */
- SKP_int *decBytes /* O Used bytes to decode this frame */
-);
-
-/* Decode parameters from payload */
-void SKP_Silk_decode_parameters(
- SKP_Silk_decoder_state *psDec, /* I/O State */
- SKP_Silk_decoder_control *psDecCtrl, /* I/O Decoder control */
- SKP_int q[], /* O Excitation signal */
- const SKP_int fullDecoding /* I Flag to tell if only arithmetic decoding */
-);
-
-/* Core decoder. Performs inverse NSQ operation LTP + LPC */
-void SKP_Silk_decode_core(
- SKP_Silk_decoder_state *psDec, /* I/O Decoder state */
- SKP_Silk_decoder_control *psDecCtrl, /* I Decoder control */
- SKP_int16 xq[], /* O Decoded speech */
- const SKP_int q[ MAX_FRAME_LENGTH ] /* I Pulse signal */
-);
-
-/* NLSF vector decoder */
-void SKP_Silk_NLSF_MSVQ_decode(
- SKP_int *pNLSF_Q15, /* O Pointer to decoded output [LPC_ORDER x 1] */
- const SKP_Silk_NLSF_CB_struct *psNLSF_CB, /* I Pointer to NLSF codebook struct */
- const SKP_int *NLSFIndices, /* I Pointer to NLSF indices [nStages x 1] */
- const SKP_int LPC_order /* I LPC order */
-);
-
-/**********************/
-/* Arithmetic coding */
-/*********************/
-
-/* Decode quantization indices of excitation (Shell coding) */
-void SKP_Silk_decode_pulses(
- SKP_Silk_range_coder_state *psRC, /* I/O Range coder state */
- SKP_Silk_decoder_control *psDecCtrl, /* I/O Decoder control */
- SKP_int q[], /* O Excitation signal */
- const SKP_int frame_length /* I Frame length (preliminary) */
-);
-
-/******************/
-/* CNG */
-/******************/
-
-/* Reset CNG */
-void SKP_Silk_CNG_Reset(
- SKP_Silk_decoder_state *psDec /* I/O Decoder state */
-);
-
-/* Updates CNG estimate, and applies the CNG when packet was lost */
-void SKP_Silk_CNG(
- SKP_Silk_decoder_state *psDec, /* I/O Decoder state */
- SKP_Silk_decoder_control *psDecCtrl, /* I/O Decoder control */
- SKP_int16 signal[], /* I/O Signal */
- SKP_int length /* I Length of residual */
-);
-
-/* Encoding of various parameters */
-void SKP_Silk_encode_parameters(
- SKP_Silk_encoder_state *psEncC, /* I/O Encoder state */
- SKP_Silk_encoder_control *psEncCtrlC, /* I/O Encoder control */
- SKP_Silk_range_coder_state *psRC, /* I/O Range coder state */
- const SKP_int8 *q /* I Quantization indices */
-);
-
-/* Extract lowest layer encoding */
-void SKP_Silk_get_low_layer_internal(
- const SKP_uint8 *indata, /* I: Encoded input vector */
- const SKP_int16 nBytesIn, /* I: Number of input Bytes */
- SKP_uint8 *Layer0data, /* O: Layer0 payload */
- SKP_int16 *nLayer0Bytes /* O: Number of FEC Bytes */
-);
-
-/* Resets LBRR buffer, used if packet size changes */
-void SKP_Silk_LBRR_reset(
- SKP_Silk_encoder_state *psEncC /* I/O Pointer to Silk encoder state */
-);
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_MAIN_FIX_H
-#define SKP_SILK_MAIN_FIX_H
-
-#include <stdlib.h>
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_structs_FIX.h"
-#include "SKP_Silk_main.h"
-#include "SKP_Silk_PLC.h"
-#define TIC(TAG_NAME)
-#define TOC(TAG_NAME)
-
-#ifndef FORCE_CPP_BUILD
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-#endif
-
-/*********************/
-/* Encoder Functions */
-/*********************/
-
-/* Initializes the Silk encoder state */
-SKP_int SKP_Silk_init_encoder_FIX(
- SKP_Silk_encoder_state_FIX *psEnc /* I/O Pointer to Silk FIX encoder state */
-);
-
-/* Control the Silk encoder */
-SKP_int SKP_Silk_control_encoder_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk encoder state */
- const SKP_int PacketSize_ms, /* I Packet length (ms) */
- const SKP_int32 TargetRate_bps, /* I Target max bitrate (bps) */
- const SKP_int PacketLoss_perc, /* I Packet loss rate (in percent) */
- const SKP_int DTX_enabled, /* I Enable / disable DTX */
- const SKP_int Complexity /* I Complexity (0->low; 1->medium; 2->high) */
-);
-
-/* Encoder main function */
-SKP_int SKP_Silk_encode_frame_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk FIX encoder state */
- SKP_uint8 *pCode, /* O Pointer to payload */
- SKP_int16 *pnBytesOut, /* I/O Pointer to number of payload bytes; */
- /* input: max length; output: used */
- const SKP_int16 *pIn /* I Pointer to input speech frame */
-);
-
-/* Low BitRate Redundancy encoding functionality. Reuse all parameters but encode with lower bitrate */
-void SKP_Silk_LBRR_encode_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk FIX encoder state */
- SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O Pointer to Silk FIX encoder control struct */
- SKP_uint8 *pCode, /* O Pointer to payload */
- SKP_int16 *pnBytesOut, /* I/O Pointer to number of payload bytes */
- SKP_int16 xfw[] /* I Input signal */
-);
-
-/* High-pass filter with cutoff frequency adaptation based on pitch lag statistics */
-void SKP_Silk_HP_variable_cutoff_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Encoder state */
- SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O Encoder control */
- SKP_int16 *out, /* O high-pass filtered output signal */
- const SKP_int16 *in /* I input signal */
-);
-
-/****************/
-/* Prefiltering */
-/****************/
-void SKP_Silk_prefilter_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Encoder state */
- const SKP_Silk_encoder_control_FIX *psEncCtrl, /* I Encoder control */
- SKP_int16 xw[], /* O Weighted signal */
- const SKP_int16 x[] /* I Speech signal */
-);
-
-/**************************************************************/
-/* Compute noise shaping coefficients and initial gain values */
-/**************************************************************/
-void SKP_Silk_noise_shape_analysis_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Encoder state FIX */
- SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O Encoder control FIX */
- const SKP_int16 *pitch_res, /* I LPC residual from pitch analysis */
- const SKP_int16 *x /* I Input signal [ frame_length + la_shape ] */
-);
-
-/* Autocorrelations for a warped frequency axis */
-void SKP_Silk_warped_autocorrelation_FIX(
- SKP_int32 *corr, /* O Result [order + 1] */
- SKP_int *scale, /* O Scaling of the correlation vector */
- const SKP_int16 *input, /* I Input data to correlate */
- const SKP_int16 warping_Q16, /* I Warping coefficient */
- const SKP_int length, /* I Length of input */
- const SKP_int order /* I Correlation order (even) */
-);
-
-/* Processing of gains */
-void SKP_Silk_process_gains_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Encoder state */
- SKP_Silk_encoder_control_FIX *psEncCtrl /* I/O Encoder control */
-);
-
-/* Control low bitrate redundancy usage */
-void SKP_Silk_LBRR_ctrl_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O encoder state */
- SKP_Silk_encoder_control *psEncCtrlC /* I/O encoder control */
-);
-
-/* Calculation of LTP state scaling */
-void SKP_Silk_LTP_scale_ctrl_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O encoder state */
- SKP_Silk_encoder_control_FIX *psEncCtrl /* I/O encoder control */
-);
-
-/**********************************************/
-/* Prediction Analysis */
-/**********************************************/
-
-/* Find pitch lags */
-void SKP_Silk_find_pitch_lags_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O encoder state */
- SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O encoder control */
- SKP_int16 res[], /* O residual */
- const SKP_int16 x[] /* I Speech signal */
-);
-
-void SKP_Silk_find_pred_coefs_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O encoder state */
- SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O encoder control */
- const SKP_int16 res_pitch[] /* I Residual from pitch analysis */
-);
-
-void SKP_Silk_find_LPC_FIX(
- SKP_int NLSF_Q15[], /* O NLSFs */
- SKP_int *interpIndex, /* O NLSF interpolation index, only used for NLSF interpolation */
- const SKP_int prev_NLSFq_Q15[], /* I previous NLSFs, only used for NLSF interpolation */
- const SKP_int useInterpolatedLSFs, /* I Flag */
- const SKP_int LPC_order, /* I LPC order */
- const SKP_int16 x[], /* I Input signal */
- const SKP_int subfr_length /* I Input signal subframe length including preceeding samples */
-);
-
-void SKP_Silk_LTP_analysis_filter_FIX(
- SKP_int16 *LTP_res, /* O: LTP residual signal of length NB_SUBFR * ( pre_length + subfr_length ) */
- const SKP_int16 *x, /* I: Pointer to input signal with at least max( pitchL ) preceeding samples */
- const SKP_int16 LTPCoef_Q14[ LTP_ORDER * NB_SUBFR ],/* I: LTP_ORDER LTP coefficients for each NB_SUBFR subframe */
- const SKP_int pitchL[ NB_SUBFR ], /* I: Pitch lag, one for each subframe */
- const SKP_int32 invGains_Q16[ NB_SUBFR ], /* I: Inverse quantization gains, one for each subframe */
- const SKP_int subfr_length, /* I: Length of each subframe */
- const SKP_int pre_length /* I: Length of the preceeding samples starting at &x[0] for each subframe */
-);
-
-/* Finds LTP vector from correlations */
-void SKP_Silk_find_LTP_FIX(
- SKP_int16 b_Q14[ NB_SUBFR * LTP_ORDER ], /* O LTP coefs */
- SKP_int32 WLTP[ NB_SUBFR * LTP_ORDER * LTP_ORDER ], /* O Weight for LTP quantization */
- SKP_int *LTPredCodGain_Q7, /* O LTP coding gain */
- const SKP_int16 r_first[], /* I residual signal after LPC signal + state for first 10 ms */
- const SKP_int16 r_last[], /* I residual signal after LPC signal + state for last 10 ms */
- const SKP_int lag[ NB_SUBFR ], /* I LTP lags */
- const SKP_int32 Wght_Q15[ NB_SUBFR ], /* I weights */
- const SKP_int subfr_length, /* I subframe length */
- const SKP_int mem_offset, /* I number of samples in LTP memory */
- SKP_int corr_rshifts[ NB_SUBFR ] /* O right shifts applied to correlations */
-);
-
-/* LTP tap quantizer */
-void SKP_Silk_quant_LTP_gains_FIX(
- SKP_int16 B_Q14[], /* I/O (un)quantized LTP gains */
- SKP_int cbk_index[], /* O Codebook Index */
- SKP_int *periodicity_index, /* O Periodicity Index */
- const SKP_int32 W_Q18[], /* I Error Weights in Q18 */
- SKP_int mu_Q8, /* I Mu value (R/D tradeoff) */
- SKP_int lowComplexity /* I Flag for low complexity */
-);
-
-/******************/
-/* NLSF Quantizer */
-/******************/
-
-/* Limit, stabilize, convert and quantize NLSFs. */
-void SKP_Silk_process_NLSFs_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O encoder state */
- SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O encoder control */
- SKP_int *pNLSF_Q15 /* I/O Normalized LSFs (quant out) (0 - (2^15-1)) */
-);
-
-/* NLSF vector encoder */
-void SKP_Silk_NLSF_MSVQ_encode_FIX(
- SKP_int *NLSFIndices, /* O Codebook path vector [ CB_STAGES ] */
- SKP_int *pNLSF_Q15, /* I/O Quantized NLSF vector [ LPC_ORDER ] */
- const SKP_Silk_NLSF_CB_struct *psNLSF_CB, /* I Codebook object */
- const SKP_int *pNLSF_q_Q15_prev, /* I Prev. quantized NLSF vector [LPC_ORDER] */
- const SKP_int *pW_Q6, /* I NLSF weight vector [ LPC_ORDER ] */
- const SKP_int NLSF_mu_Q15, /* I Rate weight for the RD optimization */
- const SKP_int NLSF_mu_fluc_red_Q16, /* I Fluctuation reduction error weight */
- const SKP_int NLSF_MSVQ_Survivors, /* I Max survivors from each stage */
- const SKP_int LPC_order, /* I LPC order */
- const SKP_int deactivate_fluc_red /* I Deactivate fluctuation reduction */
-);
-
-/* Rate-Distortion calculations for multiple input data vectors */
-void SKP_Silk_NLSF_VQ_rate_distortion_FIX(
- SKP_int32 *pRD_Q20, /* O Rate-distortion values [psNLSF_CBS->nVectors*N] */
- const SKP_Silk_NLSF_CBS *psNLSF_CBS, /* I NLSF codebook stage struct */
- const SKP_int *in_Q15, /* I Input vectors to be quantized */
- const SKP_int *w_Q6, /* I Weight vector */
- const SKP_int32 *rate_acc_Q5, /* I Accumulated rates from previous stage */
- const SKP_int mu_Q15, /* I Weight between weighted error and rate */
- const SKP_int N, /* I Number of input vectors to be quantized */
- const SKP_int LPC_order /* I LPC order */
-);
-
-/* Compute weighted quantization errors for an LPC_order element input vector, over one codebook stage */
-void SKP_Silk_NLSF_VQ_sum_error_FIX(
- SKP_int32 *err_Q20, /* O Weighted quantization errors [N*K] */
- const SKP_int *in_Q15, /* I Input vectors to be quantized [N*LPC_order] */
- const SKP_int *w_Q6, /* I Weighting vectors [N*LPC_order] */
- const SKP_int16 *pCB_Q15, /* I Codebook vectors [K*LPC_order] */
- const SKP_int N, /* I Number of input vectors */
- const SKP_int K, /* I Number of codebook vectors */
- const SKP_int LPC_order /* I Number of LPCs */
-);
-
-/* Entropy constrained MATRIX-weighted VQ, for a single input data vector */
-void SKP_Silk_VQ_WMat_EC_FIX(
- SKP_int *ind, /* O index of best codebook vector */
- SKP_int32 *rate_dist_Q14, /* O best weighted quantization error + mu * rate*/
- const SKP_int16 *in_Q14, /* I input vector to be quantized */
- const SKP_int32 *W_Q18, /* I weighting matrix */
- const SKP_int16 *cb_Q14, /* I codebook */
- const SKP_int16 *cl_Q6, /* I code length for each codebook vector */
- const SKP_int mu_Q8, /* I tradeoff between weighted error and rate */
- SKP_int L /* I number of vectors in codebook */
-);
-
-/******************/
-/* Linear Algebra */
-/******************/
-
-/* Calculates correlation matrix X'*X */
-void SKP_Silk_corrMatrix_FIX(
- const SKP_int16 *x, /* I x vector [L + order - 1] used to form data matrix X */
- const SKP_int L, /* I Length of vectors */
- const SKP_int order, /* I Max lag for correlation */
- const SKP_int head_room, /* I Desired headroom */
- SKP_int32 *XX, /* O Pointer to X'*X correlation matrix [ order x order ]*/
- SKP_int *rshifts /* I/O Right shifts of correlations */
-);
-
-/* Calculates correlation vector X'*t */
-void SKP_Silk_corrVector_FIX(
- const SKP_int16 *x, /* I x vector [L + order - 1] used to form data matrix X */
- const SKP_int16 *t, /* I Target vector [L] */
- const SKP_int L, /* I Length of vectors */
- const SKP_int order, /* I Max lag for correlation */
- SKP_int32 *Xt, /* O Pointer to X'*t correlation vector [order] */
- const SKP_int rshifts /* I Right shifts of correlations */
-);
-
-/* Add noise to matrix diagonal */
-void SKP_Silk_regularize_correlations_FIX(
- SKP_int32 *XX, /* I/O Correlation matrices */
- SKP_int32 *xx, /* I/O Correlation values */
- SKP_int32 noise, /* I Noise to add */
- SKP_int D /* I Dimension of XX */
-);
-
-/* Solves Ax = b, assuming A is symmetric */
-void SKP_Silk_solve_LDL_FIX(
- SKP_int32 *A, /* I Pointer to symetric square matrix A */
- SKP_int M, /* I Size of matrix */
- const SKP_int32 *b, /* I Pointer to b vector */
- SKP_int32 *x_Q16 /* O Pointer to x solution vector */
-);
-
-/* Residual energy: nrg = wxx - 2 * wXx * c + c' * wXX * c */
-SKP_int32 SKP_Silk_residual_energy16_covar_FIX(
- const SKP_int16 *c, /* I Prediction vector */
- const SKP_int32 *wXX, /* I Correlation matrix */
- const SKP_int32 *wXx, /* I Correlation vector */
- SKP_int32 wxx, /* I Signal energy */
- SKP_int D, /* I Dimension */
- SKP_int cQ /* I Q value for c vector 0 - 15 */
-);
-
-/* Calculates residual energies of input subframes where all subframes have LPC_order */
-/* of preceeding samples */
-void SKP_Silk_residual_energy_FIX(
- SKP_int32 nrgs[ NB_SUBFR ], /* O Residual energy per subframe */
- SKP_int nrgsQ[ NB_SUBFR ], /* O Q value per subframe */
- const SKP_int16 x[], /* I Input signal */
- SKP_int16 a_Q12[ 2 ][ MAX_LPC_ORDER ],/* I AR coefs for each frame half */
- const SKP_int32 gains[ NB_SUBFR ], /* I Quantization gains */
- const SKP_int subfr_length, /* I Subframe length */
- const SKP_int LPC_order /* I LPC order */
-);
-
-#ifndef FORCE_CPP_BUILD
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-#endif /* FORCE_CPP_BUILD */
-#endif /* SKP_SILK_MAIN_FIX_H */
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
-
-/* Compute gain to make warped filter coefficients have a zero mean log frequency response on a */
-/* non-warped frequency scale. (So that it can be implemented with a minimum-phase monic filter.) */
-SKP_INLINE SKP_int32 warped_gain( // gain in Q16
- const SKP_int32 *coefs_Q24,
- SKP_int lambda_Q16,
- SKP_int order
-) {
- SKP_int i;
- SKP_int32 gain_Q24;
-
- lambda_Q16 = -lambda_Q16;
- gain_Q24 = coefs_Q24[ order - 1 ];
- for( i = order - 2; i >= 0; i-- ) {
- gain_Q24 = SKP_SMLAWB( coefs_Q24[ i ], gain_Q24, lambda_Q16 );
- }
- gain_Q24 = SKP_SMLAWB( SKP_FIX_CONST( 1.0, 24 ), gain_Q24, -lambda_Q16 );
- return SKP_INVERSE32_varQ( gain_Q24, 40 );
-}
-
-/* Convert warped filter coefficients to monic pseudo-warped coefficients and limit maximum */
-/* amplitude of monic warped coefficients by using bandwidth expansion on the true coefficients */
-SKP_INLINE void limit_warped_coefs(
- SKP_int32 *coefs_syn_Q24,
- SKP_int32 *coefs_ana_Q24,
- SKP_int lambda_Q16,
- SKP_int32 limit_Q24,
- SKP_int order
-) {
- SKP_int i, iter, ind = 0;
- SKP_int32 tmp, maxabs_Q24, chirp_Q16, gain_syn_Q16, gain_ana_Q16;
- SKP_int32 nom_Q16, den_Q24;
-
- /* Convert to monic coefficients */
- lambda_Q16 = -lambda_Q16;
- for( i = order - 1; i > 0; i-- ) {
- coefs_syn_Q24[ i - 1 ] = SKP_SMLAWB( coefs_syn_Q24[ i - 1 ], coefs_syn_Q24[ i ], lambda_Q16 );
- coefs_ana_Q24[ i - 1 ] = SKP_SMLAWB( coefs_ana_Q24[ i - 1 ], coefs_ana_Q24[ i ], lambda_Q16 );
- }
- lambda_Q16 = -lambda_Q16;
- nom_Q16 = SKP_SMLAWB( SKP_FIX_CONST( 1.0, 16 ), -lambda_Q16, lambda_Q16 );
- den_Q24 = SKP_SMLAWB( SKP_FIX_CONST( 1.0, 24 ), coefs_syn_Q24[ 0 ], lambda_Q16 );
- gain_syn_Q16 = SKP_DIV32_varQ( nom_Q16, den_Q24, 24 );
- den_Q24 = SKP_SMLAWB( SKP_FIX_CONST( 1.0, 24 ), coefs_ana_Q24[ 0 ], lambda_Q16 );
- gain_ana_Q16 = SKP_DIV32_varQ( nom_Q16, den_Q24, 24 );
- for( i = 0; i < order; i++ ) {
- coefs_syn_Q24[ i ] = SKP_SMULWW( gain_syn_Q16, coefs_syn_Q24[ i ] );
- coefs_ana_Q24[ i ] = SKP_SMULWW( gain_ana_Q16, coefs_ana_Q24[ i ] );
- }
-
- for( iter = 0; iter < 10; iter++ ) {
- /* Find maximum absolute value */
- maxabs_Q24 = -1;
- for( i = 0; i < order; i++ ) {
- tmp = SKP_max( SKP_abs_int32( coefs_syn_Q24[ i ] ), SKP_abs_int32( coefs_ana_Q24[ i ] ) );
- if( tmp > maxabs_Q24 ) {
- maxabs_Q24 = tmp;
- ind = i;
- }
- }
- if( maxabs_Q24 <= limit_Q24 ) {
- /* Coefficients are within range - done */
- return;
- }
-
- /* Convert back to true warped coefficients */
- for( i = 1; i < order; i++ ) {
- coefs_syn_Q24[ i - 1 ] = SKP_SMLAWB( coefs_syn_Q24[ i - 1 ], coefs_syn_Q24[ i ], lambda_Q16 );
- coefs_ana_Q24[ i - 1 ] = SKP_SMLAWB( coefs_ana_Q24[ i - 1 ], coefs_ana_Q24[ i ], lambda_Q16 );
- }
- gain_syn_Q16 = SKP_INVERSE32_varQ( gain_syn_Q16, 32 );
- gain_ana_Q16 = SKP_INVERSE32_varQ( gain_ana_Q16, 32 );
- for( i = 0; i < order; i++ ) {
- coefs_syn_Q24[ i ] = SKP_SMULWW( gain_syn_Q16, coefs_syn_Q24[ i ] );
- coefs_ana_Q24[ i ] = SKP_SMULWW( gain_ana_Q16, coefs_ana_Q24[ i ] );
- }
-
- /* Apply bandwidth expansion */
- chirp_Q16 = SKP_FIX_CONST( 0.99, 16 ) - SKP_DIV32_varQ(
- SKP_SMULWB( maxabs_Q24 - limit_Q24, SKP_SMLABB( SKP_FIX_CONST( 0.8, 10 ), SKP_FIX_CONST( 0.1, 10 ), iter ) ),
- SKP_MUL( maxabs_Q24, ind + 1 ), 22 );
- SKP_Silk_bwexpander_32( coefs_syn_Q24, order, chirp_Q16 );
- SKP_Silk_bwexpander_32( coefs_ana_Q24, order, chirp_Q16 );
-
- /* Convert to monic warped coefficients */
- lambda_Q16 = -lambda_Q16;
- for( i = order - 1; i > 0; i-- ) {
- coefs_syn_Q24[ i - 1 ] = SKP_SMLAWB( coefs_syn_Q24[ i - 1 ], coefs_syn_Q24[ i ], lambda_Q16 );
- coefs_ana_Q24[ i - 1 ] = SKP_SMLAWB( coefs_ana_Q24[ i - 1 ], coefs_ana_Q24[ i ], lambda_Q16 );
- }
- lambda_Q16 = -lambda_Q16;
- nom_Q16 = SKP_SMLAWB( SKP_FIX_CONST( 1.0, 16 ), -lambda_Q16, lambda_Q16 );
- den_Q24 = SKP_SMLAWB( SKP_FIX_CONST( 1.0, 24 ), coefs_syn_Q24[ 0 ], lambda_Q16 );
- gain_syn_Q16 = SKP_DIV32_varQ( nom_Q16, den_Q24, 24 );
- den_Q24 = SKP_SMLAWB( SKP_FIX_CONST( 1.0, 24 ), coefs_ana_Q24[ 0 ], lambda_Q16 );
- gain_ana_Q16 = SKP_DIV32_varQ( nom_Q16, den_Q24, 24 );
- for( i = 0; i < order; i++ ) {
- coefs_syn_Q24[ i ] = SKP_SMULWW( gain_syn_Q16, coefs_syn_Q24[ i ] );
- coefs_ana_Q24[ i ] = SKP_SMULWW( gain_ana_Q16, coefs_ana_Q24[ i ] );
- }
- }
- SKP_assert( 0 );
-}
-
-/**************************************************************/
-/* Compute noise shaping coefficients and initial gain values */
-/**************************************************************/
-void SKP_Silk_noise_shape_analysis_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Encoder state FIX */
- SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O Encoder control FIX */
- const SKP_int16 *pitch_res, /* I LPC residual from pitch analysis */
- const SKP_int16 *x /* I Input signal [ frame_length + la_shape ] */
-)
-{
- SKP_Silk_shape_state_FIX *psShapeSt = &psEnc->sShape;
- SKP_int k, i, nSamples, Qnrg, b_Q14, warping_Q16, scale = 0;
- SKP_int32 SNR_adj_dB_Q7, HarmBoost_Q16, HarmShapeGain_Q16, Tilt_Q16, tmp32;
- SKP_int32 nrg, pre_nrg_Q30, log_energy_Q7, log_energy_prev_Q7, energy_variation_Q7;
- SKP_int32 delta_Q16, BWExp1_Q16, BWExp2_Q16, gain_mult_Q16, gain_add_Q16, strength_Q16, b_Q8;
- SKP_int32 auto_corr[ MAX_SHAPE_LPC_ORDER + 1 ];
- SKP_int32 refl_coef_Q16[ MAX_SHAPE_LPC_ORDER ];
- SKP_int32 AR1_Q24[ MAX_SHAPE_LPC_ORDER ];
- SKP_int32 AR2_Q24[ MAX_SHAPE_LPC_ORDER ];
- SKP_int16 x_windowed[ SHAPE_LPC_WIN_MAX ];
- const SKP_int16 *x_ptr, *pitch_res_ptr;
-
- SKP_int32 sqrt_nrg[ NB_SUBFR ], Qnrg_vec[ NB_SUBFR ];
-
- /* Point to start of first LPC analysis block */
- x_ptr = x - psEnc->sCmn.la_shape;
-
- /****************/
- /* CONTROL SNR */
- /****************/
- /* Reduce SNR_dB values if recent bitstream has exceeded TargetRate */
- psEncCtrl->current_SNR_dB_Q7 = psEnc->SNR_dB_Q7 - SKP_SMULWB( SKP_LSHIFT( ( SKP_int32 )psEnc->BufferedInChannel_ms, 7 ),
- SKP_FIX_CONST( 0.05, 16 ) );
-
- /* Reduce SNR_dB if inband FEC used */
- if( psEnc->speech_activity_Q8 > SKP_FIX_CONST( LBRR_SPEECH_ACTIVITY_THRES, 8 ) ) {
- psEncCtrl->current_SNR_dB_Q7 -= SKP_RSHIFT( psEnc->inBandFEC_SNR_comp_Q8, 1 );
- }
-
- /****************/
- /* GAIN CONTROL */
- /****************/
- /* Input quality is the average of the quality in the lowest two VAD bands */
- psEncCtrl->input_quality_Q14 = ( SKP_int )SKP_RSHIFT( ( SKP_int32 )psEncCtrl->input_quality_bands_Q15[ 0 ]
- + psEncCtrl->input_quality_bands_Q15[ 1 ], 2 );
-
- /* Coding quality level, between 0.0_Q0 and 1.0_Q0, but in Q14 */
- psEncCtrl->coding_quality_Q14 = SKP_RSHIFT( SKP_Silk_sigm_Q15( SKP_RSHIFT_ROUND( psEncCtrl->current_SNR_dB_Q7 -
- SKP_FIX_CONST( 18.0, 7 ), 4 ) ), 1 );
-
- /* Reduce coding SNR during low speech activity */
- b_Q8 = SKP_FIX_CONST( 1.0, 8 ) - psEnc->speech_activity_Q8;
- b_Q8 = SKP_SMULWB( SKP_LSHIFT( b_Q8, 8 ), b_Q8 );
- SNR_adj_dB_Q7 = SKP_SMLAWB( psEncCtrl->current_SNR_dB_Q7,
- SKP_SMULBB( SKP_FIX_CONST( -BG_SNR_DECR_dB, 7 ) >> ( 4 + 1 ), b_Q8 ), // Q11
- SKP_SMULWB( SKP_FIX_CONST( 1.0, 14 ) + psEncCtrl->input_quality_Q14, psEncCtrl->coding_quality_Q14 ) ); // Q12
-
- if( psEncCtrl->sCmn.sigtype == SIG_TYPE_VOICED ) {
- /* Reduce gains for periodic signals */
- SNR_adj_dB_Q7 = SKP_SMLAWB( SNR_adj_dB_Q7, SKP_FIX_CONST( HARM_SNR_INCR_dB, 8 ), psEnc->LTPCorr_Q15 );
- } else {
- /* For unvoiced signals and low-quality input, adjust the quality slower than SNR_dB setting */
- SNR_adj_dB_Q7 = SKP_SMLAWB( SNR_adj_dB_Q7,
- SKP_SMLAWB( SKP_FIX_CONST( 6.0, 9 ), -SKP_FIX_CONST( 0.4, 18 ), psEncCtrl->current_SNR_dB_Q7 ),
- SKP_FIX_CONST( 1.0, 14 ) - psEncCtrl->input_quality_Q14 );
- }
-
- /*************************/
- /* SPARSENESS PROCESSING */
- /*************************/
- /* Set quantizer offset */
- if( psEncCtrl->sCmn.sigtype == SIG_TYPE_VOICED ) {
- /* Initally set to 0; may be overruled in process_gains(..) */
- psEncCtrl->sCmn.QuantOffsetType = 0;
- psEncCtrl->sparseness_Q8 = 0;
- } else {
- /* Sparseness measure, based on relative fluctuations of energy per 2 milliseconds */
- nSamples = SKP_LSHIFT( psEnc->sCmn.fs_kHz, 1 );
- energy_variation_Q7 = 0;
- log_energy_prev_Q7 = 0;
- pitch_res_ptr = pitch_res;
- for( k = 0; k < FRAME_LENGTH_MS / 2; k++ ) {
- SKP_Silk_sum_sqr_shift( &nrg, &scale, pitch_res_ptr, nSamples );
- nrg += SKP_RSHIFT( nSamples, scale ); // Q(-scale)
-
- log_energy_Q7 = SKP_Silk_lin2log( nrg );
- if( k > 0 ) {
- energy_variation_Q7 += SKP_abs( log_energy_Q7 - log_energy_prev_Q7 );
- }
- log_energy_prev_Q7 = log_energy_Q7;
- pitch_res_ptr += nSamples;
- }
-
- psEncCtrl->sparseness_Q8 = SKP_RSHIFT( SKP_Silk_sigm_Q15( SKP_SMULWB( energy_variation_Q7 -
- SKP_FIX_CONST( 5.0, 7 ), SKP_FIX_CONST( 0.1, 16 ) ) ), 7 );
-
- /* Set quantization offset depending on sparseness measure */
- if( psEncCtrl->sparseness_Q8 > SKP_FIX_CONST( SPARSENESS_THRESHOLD_QNT_OFFSET, 8 ) ) {
- psEncCtrl->sCmn.QuantOffsetType = 0;
- } else {
- psEncCtrl->sCmn.QuantOffsetType = 1;
- }
-
- /* Increase coding SNR for sparse signals */
- SNR_adj_dB_Q7 = SKP_SMLAWB( SNR_adj_dB_Q7, SKP_FIX_CONST( SPARSE_SNR_INCR_dB, 15 ), psEncCtrl->sparseness_Q8 - SKP_FIX_CONST( 0.5, 8 ) );
- }
-
- /*******************************/
- /* Control bandwidth expansion */
- /*******************************/
- /* More BWE for signals with high prediction gain */
- strength_Q16 = SKP_SMULWB( psEncCtrl->predGain_Q16, SKP_FIX_CONST( FIND_PITCH_WHITE_NOISE_FRACTION, 16 ) );
- BWExp1_Q16 = BWExp2_Q16 = SKP_DIV32_varQ( SKP_FIX_CONST( BANDWIDTH_EXPANSION, 16 ),
- SKP_SMLAWW( SKP_FIX_CONST( 1.0, 16 ), strength_Q16, strength_Q16 ), 16 );
- delta_Q16 = SKP_SMULWB( SKP_FIX_CONST( 1.0, 16 ) - SKP_SMULBB( 3, psEncCtrl->coding_quality_Q14 ),
- SKP_FIX_CONST( LOW_RATE_BANDWIDTH_EXPANSION_DELTA, 16 ) );
- BWExp1_Q16 = SKP_SUB32( BWExp1_Q16, delta_Q16 );
- BWExp2_Q16 = SKP_ADD32( BWExp2_Q16, delta_Q16 );
- /* BWExp1 will be applied after BWExp2, so make it relative */
- BWExp1_Q16 = SKP_DIV32_16( SKP_LSHIFT( BWExp1_Q16, 14 ), SKP_RSHIFT( BWExp2_Q16, 2 ) );
-
- if( psEnc->sCmn.warping_Q16 > 0 ) {
- /* Slightly more warping in analysis will move quantization noise up in frequency, where it's better masked */
- warping_Q16 = SKP_SMLAWB( psEnc->sCmn.warping_Q16, psEncCtrl->coding_quality_Q14, SKP_FIX_CONST( 0.01, 18 ) );
- } else {
- warping_Q16 = 0;
- }
-
- /********************************************/
- /* Compute noise shaping AR coefs and gains */
- /********************************************/
- for( k = 0; k < NB_SUBFR; k++ ) {
- /* Apply window: sine slope followed by flat part followed by cosine slope */
- SKP_int shift, slope_part, flat_part;
- flat_part = psEnc->sCmn.fs_kHz * 5;
- slope_part = SKP_RSHIFT( psEnc->sCmn.shapeWinLength - flat_part, 1 );
-
- SKP_Silk_apply_sine_window_new( x_windowed, x_ptr, 1, slope_part );
- shift = slope_part;
- SKP_memcpy( x_windowed + shift, x_ptr + shift, flat_part * sizeof(SKP_int16) );
- shift += flat_part;
- SKP_Silk_apply_sine_window_new( x_windowed + shift, x_ptr + shift, 2, slope_part );
-
- /* Update pointer: next LPC analysis block */
- x_ptr += psEnc->sCmn.subfr_length;
-
- if( psEnc->sCmn.warping_Q16 > 0 ) {
- /* Calculate warped auto correlation */
- SKP_Silk_warped_autocorrelation_FIX( auto_corr, &scale, x_windowed, warping_Q16, psEnc->sCmn.shapeWinLength, psEnc->sCmn.shapingLPCOrder );
- } else {
- /* Calculate regular auto correlation */
- SKP_Silk_autocorr( auto_corr, &scale, x_windowed, psEnc->sCmn.shapeWinLength, psEnc->sCmn.shapingLPCOrder + 1 );
- }
-
- /* Add white noise, as a fraction of energy */
- auto_corr[0] = SKP_ADD32( auto_corr[0], SKP_max_32( SKP_SMULWB( SKP_RSHIFT( auto_corr[ 0 ], 4 ),
- SKP_FIX_CONST( SHAPE_WHITE_NOISE_FRACTION, 20 ) ), 1 ) );
-
- /* Calculate the reflection coefficients using schur */
- nrg = SKP_Silk_schur64( refl_coef_Q16, auto_corr, psEnc->sCmn.shapingLPCOrder );
- SKP_assert( nrg >= 0 );
-
- /* Convert reflection coefficients to prediction coefficients */
- SKP_Silk_k2a_Q16( AR2_Q24, refl_coef_Q16, psEnc->sCmn.shapingLPCOrder );
-
- Qnrg = -scale; // range: -12...30
- SKP_assert( Qnrg >= -12 );
- SKP_assert( Qnrg <= 30 );
-
- /* Make sure that Qnrg is an even number */
- if( Qnrg & 1 ) {
- Qnrg -= 1;
- nrg >>= 1;
- }
-
- tmp32 = SKP_Silk_SQRT_APPROX( nrg );
- Qnrg >>= 1; // range: -6...15
-
- sqrt_nrg[ k ] = tmp32;
- Qnrg_vec[ k ] = Qnrg;
-
- psEncCtrl->Gains_Q16[ k ] = SKP_LSHIFT_SAT32( tmp32, 16 - Qnrg );
-
- if( psEnc->sCmn.warping_Q16 > 0 ) {
- /* Adjust gain for warping */
- gain_mult_Q16 = warped_gain( AR2_Q24, warping_Q16, psEnc->sCmn.shapingLPCOrder );
- SKP_assert( psEncCtrl->Gains_Q16[ k ] >= 0 );
- psEncCtrl->Gains_Q16[ k ] = SKP_SMULWW( psEncCtrl->Gains_Q16[ k ], gain_mult_Q16 );
- if( psEncCtrl->Gains_Q16[ k ] < 0 ) {
- psEncCtrl->Gains_Q16[ k ] = SKP_int32_MAX;
- }
- }
-
- /* Bandwidth expansion for synthesis filter shaping */
- SKP_Silk_bwexpander_32( AR2_Q24, psEnc->sCmn.shapingLPCOrder, BWExp2_Q16 );
-
- /* Compute noise shaping filter coefficients */
- SKP_memcpy( AR1_Q24, AR2_Q24, psEnc->sCmn.shapingLPCOrder * sizeof( SKP_int32 ) );
-
- /* Bandwidth expansion for analysis filter shaping */
- SKP_assert( BWExp1_Q16 <= SKP_FIX_CONST( 1.0, 16 ) );
- SKP_Silk_bwexpander_32( AR1_Q24, psEnc->sCmn.shapingLPCOrder, BWExp1_Q16 );
-
- /* Ratio of prediction gains, in energy domain */
- SKP_Silk_LPC_inverse_pred_gain_Q24( &pre_nrg_Q30, AR2_Q24, psEnc->sCmn.shapingLPCOrder );
- SKP_Silk_LPC_inverse_pred_gain_Q24( &nrg, AR1_Q24, psEnc->sCmn.shapingLPCOrder );
-
- //psEncCtrl->GainsPre[ k ] = 1.0f - 0.7f * ( 1.0f - pre_nrg / nrg ) = 0.3f + 0.7f * pre_nrg / nrg;
- pre_nrg_Q30 = SKP_LSHIFT32( SKP_SMULWB( pre_nrg_Q30, SKP_FIX_CONST( 0.7, 15 ) ), 1 );
- psEncCtrl->GainsPre_Q14[ k ] = ( SKP_int ) SKP_FIX_CONST( 0.3, 14 ) + SKP_DIV32_varQ( pre_nrg_Q30, nrg, 14 );
-
- /* Convert to monic warped prediction coefficients and limit absolute values */
- limit_warped_coefs( AR2_Q24, AR1_Q24, warping_Q16, SKP_FIX_CONST( 3.999, 24 ), psEnc->sCmn.shapingLPCOrder );
-
- /* Convert from Q24 to Q13 and store in int16 */
- for( i = 0; i < psEnc->sCmn.shapingLPCOrder; i++ ) {
- psEncCtrl->AR1_Q13[ k * MAX_SHAPE_LPC_ORDER + i ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( AR1_Q24[ i ], 11 ) );
- psEncCtrl->AR2_Q13[ k * MAX_SHAPE_LPC_ORDER + i ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( AR2_Q24[ i ], 11 ) );
- }
- }
-
- /*****************/
- /* Gain tweaking */
- /*****************/
- /* Increase gains during low speech activity and put lower limit on gains */
- gain_mult_Q16 = SKP_Silk_log2lin( -SKP_SMLAWB( -SKP_FIX_CONST( 16.0, 7 ), SNR_adj_dB_Q7, SKP_FIX_CONST( 0.16, 16 ) ) );
- gain_add_Q16 = SKP_Silk_log2lin( SKP_SMLAWB( SKP_FIX_CONST( 16.0, 7 ), SKP_FIX_CONST( NOISE_FLOOR_dB, 7 ), SKP_FIX_CONST( 0.16, 16 ) ) );
- tmp32 = SKP_Silk_log2lin( SKP_SMLAWB( SKP_FIX_CONST( 16.0, 7 ), SKP_FIX_CONST( RELATIVE_MIN_GAIN_dB, 7 ), SKP_FIX_CONST( 0.16, 16 ) ) );
- tmp32 = SKP_SMULWW( psEnc->avgGain_Q16, tmp32 );
- gain_add_Q16 = SKP_ADD_SAT32( gain_add_Q16, tmp32 );
- SKP_assert( gain_mult_Q16 >= 0 );
-
- for( k = 0; k < NB_SUBFR; k++ ) {
- psEncCtrl->Gains_Q16[ k ] = SKP_SMULWW( psEncCtrl->Gains_Q16[ k ], gain_mult_Q16 );
- if( psEncCtrl->Gains_Q16[ k ] < 0 ) {
- psEncCtrl->Gains_Q16[ k ] = SKP_int32_MAX;
- }
- }
-
- for( k = 0; k < NB_SUBFR; k++ ) {
- psEncCtrl->Gains_Q16[ k ] = SKP_ADD_POS_SAT32( psEncCtrl->Gains_Q16[ k ], gain_add_Q16 );
- psEnc->avgGain_Q16 = SKP_ADD_SAT32(
- psEnc->avgGain_Q16,
- SKP_SMULWB(
- psEncCtrl->Gains_Q16[ k ] - psEnc->avgGain_Q16,
- SKP_RSHIFT_ROUND( SKP_SMULBB( psEnc->speech_activity_Q8, SKP_FIX_CONST( GAIN_SMOOTHING_COEF, 10 ) ), 2 )
- ) );
- }
-
- /************************************************/
- /* Decrease level during fricatives (de-essing) */
- /************************************************/
- gain_mult_Q16 = SKP_FIX_CONST( 1.0, 16 ) + SKP_RSHIFT_ROUND( SKP_MLA( SKP_FIX_CONST( INPUT_TILT, 26 ),
- psEncCtrl->coding_quality_Q14, SKP_FIX_CONST( HIGH_RATE_INPUT_TILT, 12 ) ), 10 );
-
- if( psEncCtrl->input_tilt_Q15 <= 0 && psEncCtrl->sCmn.sigtype == SIG_TYPE_UNVOICED ) {
- if( psEnc->sCmn.fs_kHz == 24 ) {
- SKP_int32 essStrength_Q15 = SKP_SMULWW( -psEncCtrl->input_tilt_Q15,
- SKP_SMULBB( psEnc->speech_activity_Q8, SKP_FIX_CONST( 1.0, 8 ) - psEncCtrl->sparseness_Q8 ) );
- tmp32 = SKP_Silk_log2lin( SKP_FIX_CONST( 16.0, 7 ) - SKP_SMULWB( essStrength_Q15,
- SKP_SMULWB( SKP_FIX_CONST( DE_ESSER_COEF_SWB_dB, 7 ), SKP_FIX_CONST( 0.16, 17 ) ) ) );
- gain_mult_Q16 = SKP_SMULWW( gain_mult_Q16, tmp32 );
- } else if( psEnc->sCmn.fs_kHz == 16 ) {
- SKP_int32 essStrength_Q15 = SKP_SMULWW(-psEncCtrl->input_tilt_Q15,
- SKP_SMULBB( psEnc->speech_activity_Q8, SKP_FIX_CONST( 1.0, 8 ) - psEncCtrl->sparseness_Q8 ));
- tmp32 = SKP_Silk_log2lin( SKP_FIX_CONST( 16.0, 7 ) - SKP_SMULWB( essStrength_Q15,
- SKP_SMULWB( SKP_FIX_CONST( DE_ESSER_COEF_WB_dB, 7 ), SKP_FIX_CONST( 0.16, 17 ) ) ) );
- gain_mult_Q16 = SKP_SMULWW( gain_mult_Q16, tmp32 );
- } else {
- SKP_assert( psEnc->sCmn.fs_kHz == 12 || psEnc->sCmn.fs_kHz == 8 );
- }
- }
-
- for( k = 0; k < NB_SUBFR; k++ ) {
- psEncCtrl->GainsPre_Q14[ k ] = SKP_SMULWB( gain_mult_Q16, psEncCtrl->GainsPre_Q14[ k ] );
- }
-
- /************************************************/
- /* Control low-frequency shaping and noise tilt */
- /************************************************/
- /* Less low frequency shaping for noisy inputs */
- strength_Q16 = SKP_MUL( SKP_FIX_CONST( LOW_FREQ_SHAPING, 0 ), SKP_FIX_CONST( 1.0, 16 ) +
- SKP_SMULBB( SKP_FIX_CONST( LOW_QUALITY_LOW_FREQ_SHAPING_DECR, 1 ), psEncCtrl->input_quality_bands_Q15[ 0 ] - SKP_FIX_CONST( 1.0, 15 ) ) );
- if( psEncCtrl->sCmn.sigtype == SIG_TYPE_VOICED ) {
- /* Reduce low frequencies quantization noise for periodic signals, depending on pitch lag */
- /*f = 400; freqz([1, -0.98 + 2e-4 * f], [1, -0.97 + 7e-4 * f], 2^12, Fs); axis([0, 1000, -10, 1])*/
- SKP_int fs_kHz_inv = SKP_DIV32_16( SKP_FIX_CONST( 0.2, 14 ), psEnc->sCmn.fs_kHz );
- for( k = 0; k < NB_SUBFR; k++ ) {
- b_Q14 = fs_kHz_inv + SKP_DIV32_16( SKP_FIX_CONST( 3.0, 14 ), psEncCtrl->sCmn.pitchL[ k ] );
- /* Pack two coefficients in one int32 */
- psEncCtrl->LF_shp_Q14[ k ] = SKP_LSHIFT( SKP_FIX_CONST( 1.0, 14 ) - b_Q14 - SKP_SMULWB( strength_Q16, b_Q14 ), 16 );
- psEncCtrl->LF_shp_Q14[ k ] |= (SKP_uint16)( b_Q14 - SKP_FIX_CONST( 1.0, 14 ) );
- }
- SKP_assert( SKP_FIX_CONST( HARM_HP_NOISE_COEF, 24 ) < SKP_FIX_CONST( 0.5, 24 ) ); // Guarantees that second argument to SMULWB() is within range of an SKP_int16
- Tilt_Q16 = - SKP_FIX_CONST( HP_NOISE_COEF, 16 ) -
- SKP_SMULWB( SKP_FIX_CONST( 1.0, 16 ) - SKP_FIX_CONST( HP_NOISE_COEF, 16 ),
- SKP_SMULWB( SKP_FIX_CONST( HARM_HP_NOISE_COEF, 24 ), psEnc->speech_activity_Q8 ) );
- } else {
- b_Q14 = SKP_DIV32_16( 21299, psEnc->sCmn.fs_kHz ); // 1.3_Q0 = 21299_Q14
- /* Pack two coefficients in one int32 */
- psEncCtrl->LF_shp_Q14[ 0 ] = SKP_LSHIFT( SKP_FIX_CONST( 1.0, 14 ) - b_Q14 -
- SKP_SMULWB( strength_Q16, SKP_SMULWB( SKP_FIX_CONST( 0.6, 16 ), b_Q14 ) ), 16 );
- psEncCtrl->LF_shp_Q14[ 0 ] |= (SKP_uint16)( b_Q14 - SKP_FIX_CONST( 1.0, 14 ) );
- for( k = 1; k < NB_SUBFR; k++ ) {
- psEncCtrl->LF_shp_Q14[ k ] = psEncCtrl->LF_shp_Q14[ 0 ];
- }
- Tilt_Q16 = -SKP_FIX_CONST( HP_NOISE_COEF, 16 );
- }
-
- /****************************/
- /* HARMONIC SHAPING CONTROL */
- /****************************/
- /* Control boosting of harmonic frequencies */
- HarmBoost_Q16 = SKP_SMULWB( SKP_SMULWB( SKP_FIX_CONST( 1.0, 17 ) - SKP_LSHIFT( psEncCtrl->coding_quality_Q14, 3 ),
- psEnc->LTPCorr_Q15 ), SKP_FIX_CONST( LOW_RATE_HARMONIC_BOOST, 16 ) );
-
- /* More harmonic boost for noisy input signals */
- HarmBoost_Q16 = SKP_SMLAWB( HarmBoost_Q16,
- SKP_FIX_CONST( 1.0, 16 ) - SKP_LSHIFT( psEncCtrl->input_quality_Q14, 2 ), SKP_FIX_CONST( LOW_INPUT_QUALITY_HARMONIC_BOOST, 16 ) );
-
- if( USE_HARM_SHAPING && psEncCtrl->sCmn.sigtype == SIG_TYPE_VOICED ) {
- /* More harmonic noise shaping for high bitrates or noisy input */
- HarmShapeGain_Q16 = SKP_SMLAWB( SKP_FIX_CONST( HARMONIC_SHAPING, 16 ),
- SKP_FIX_CONST( 1.0, 16 ) - SKP_SMULWB( SKP_FIX_CONST( 1.0, 18 ) - SKP_LSHIFT( psEncCtrl->coding_quality_Q14, 4 ),
- psEncCtrl->input_quality_Q14 ), SKP_FIX_CONST( HIGH_RATE_OR_LOW_QUALITY_HARMONIC_SHAPING, 16 ) );
-
- /* Less harmonic noise shaping for less periodic signals */
- HarmShapeGain_Q16 = SKP_SMULWB( SKP_LSHIFT( HarmShapeGain_Q16, 1 ),
- SKP_Silk_SQRT_APPROX( SKP_LSHIFT( psEnc->LTPCorr_Q15, 15 ) ) );
- } else {
- HarmShapeGain_Q16 = 0;
- }
-
- /*************************/
- /* Smooth over subframes */
- /*************************/
- for( k = 0; k < NB_SUBFR; k++ ) {
- psShapeSt->HarmBoost_smth_Q16 =
- SKP_SMLAWB( psShapeSt->HarmBoost_smth_Q16, HarmBoost_Q16 - psShapeSt->HarmBoost_smth_Q16, SKP_FIX_CONST( SUBFR_SMTH_COEF, 16 ) );
- psShapeSt->HarmShapeGain_smth_Q16 =
- SKP_SMLAWB( psShapeSt->HarmShapeGain_smth_Q16, HarmShapeGain_Q16 - psShapeSt->HarmShapeGain_smth_Q16, SKP_FIX_CONST( SUBFR_SMTH_COEF, 16 ) );
- psShapeSt->Tilt_smth_Q16 =
- SKP_SMLAWB( psShapeSt->Tilt_smth_Q16, Tilt_Q16 - psShapeSt->Tilt_smth_Q16, SKP_FIX_CONST( SUBFR_SMTH_COEF, 16 ) );
-
- psEncCtrl->HarmBoost_Q14[ k ] = ( SKP_int )SKP_RSHIFT_ROUND( psShapeSt->HarmBoost_smth_Q16, 2 );
- psEncCtrl->HarmShapeGain_Q14[ k ] = ( SKP_int )SKP_RSHIFT_ROUND( psShapeSt->HarmShapeGain_smth_Q16, 2 );
- psEncCtrl->Tilt_Q14[ k ] = ( SKP_int )SKP_RSHIFT_ROUND( psShapeSt->Tilt_smth_Q16, 2 );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/***********************************************************
-* Pitch analyser function
-********************************************************** */
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_pitch_est_defines.h"
-#include "SKP_Silk_common_pitch_est_defines.h"
-
-#define SCRATCH_SIZE 22
-
-/************************************************************/
-/* Internally used functions */
-/************************************************************/
-void SKP_FIX_P_Ana_calc_corr_st3(
- SKP_int32 cross_corr_st3[PITCH_EST_NB_SUBFR][PITCH_EST_NB_CBKS_STAGE3_MAX][PITCH_EST_NB_STAGE3_LAGS],/* (O) 3 DIM correlation array */
- const SKP_int16 signal[], /* I vector to correlate */
- SKP_int start_lag, /* I lag offset to search around */
- SKP_int sf_length, /* I length of a 5 ms subframe */
- SKP_int complexity /* I Complexity setting */
-);
-
-void SKP_FIX_P_Ana_calc_energy_st3(
- SKP_int32 energies_st3[PITCH_EST_NB_SUBFR][PITCH_EST_NB_CBKS_STAGE3_MAX][PITCH_EST_NB_STAGE3_LAGS],/* (O) 3 DIM energy array */
- const SKP_int16 signal[], /* I vector to calc energy in */
- SKP_int start_lag, /* I lag offset to search around */
- SKP_int sf_length, /* I length of one 5 ms subframe */
- SKP_int complexity /* I Complexity setting */
-);
-
-SKP_int32 SKP_FIX_P_Ana_find_scaling(
- const SKP_int16 *signal,
- const SKP_int signal_length,
- const SKP_int sum_sqr_len
-);
-
-/*************************************************************/
-/* FIXED POINT CORE PITCH ANALYSIS FUNCTION */
-/*************************************************************/
-SKP_int SKP_Silk_pitch_analysis_core( /* O Voicing estimate: 0 voiced, 1 unvoiced */
- const SKP_int16 *signal, /* I Signal of length PITCH_EST_FRAME_LENGTH_MS*Fs_kHz */
- SKP_int *pitch_out, /* O 4 pitch lag values */
- SKP_int *lagIndex, /* O Lag Index */
- SKP_int *contourIndex, /* O Pitch contour Index */
- SKP_int *LTPCorr_Q15, /* I/O Normalized correlation; input: value from previous frame */
- SKP_int prevLag, /* I Last lag of previous frame; set to zero is unvoiced */
- const SKP_int32 search_thres1_Q16, /* I First stage threshold for lag candidates 0 - 1 */
- const SKP_int search_thres2_Q15, /* I Final threshold for lag candidates 0 - 1 */
- const SKP_int Fs_kHz, /* I Sample frequency (kHz) */
- const SKP_int complexity, /* I Complexity setting, 0-2, where 2 is highest */
- const SKP_int forLJC /* I 1 if this function is called from LJC code, 0 otherwise. */
-)
-{
- SKP_int16 signal_8kHz[ PITCH_EST_MAX_FRAME_LENGTH_ST_2 ];
- SKP_int16 signal_4kHz[ PITCH_EST_MAX_FRAME_LENGTH_ST_1 ];
- SKP_int32 scratch_mem[ 3 * PITCH_EST_MAX_FRAME_LENGTH ];
- SKP_int16 *input_signal_ptr;
- SKP_int32 filt_state[ PITCH_EST_MAX_DECIMATE_STATE_LENGTH ];
- SKP_int i, k, d, j;
- SKP_int16 C[ PITCH_EST_NB_SUBFR ][ ( PITCH_EST_MAX_LAG >> 1 ) + 5 ];
- const SKP_int16 *target_ptr, *basis_ptr;
- SKP_int32 cross_corr, normalizer, energy, shift, energy_basis, energy_target;
- SKP_int d_srch[ PITCH_EST_D_SRCH_LENGTH ];
- SKP_int16 d_comp[ ( PITCH_EST_MAX_LAG >> 1 ) + 5 ];
- SKP_int Cmax, length_d_srch, length_d_comp;
- SKP_int32 sum, threshold, temp32;
- SKP_int CBimax, CBimax_new, CBimax_old, lag, start_lag, end_lag, lag_new;
- SKP_int32 CC[ PITCH_EST_NB_CBKS_STAGE2_EXT ], CCmax, CCmax_b, CCmax_new_b, CCmax_new;
- SKP_int32 energies_st3[ PITCH_EST_NB_SUBFR ][ PITCH_EST_NB_CBKS_STAGE3_MAX ][ PITCH_EST_NB_STAGE3_LAGS ];
- SKP_int32 crosscorr_st3[ PITCH_EST_NB_SUBFR ][ PITCH_EST_NB_CBKS_STAGE3_MAX ][ PITCH_EST_NB_STAGE3_LAGS ];
- SKP_int32 lag_counter;
- SKP_int frame_length, frame_length_8kHz, frame_length_4kHz, max_sum_sq_length;
- SKP_int sf_length, sf_length_8kHz, sf_length_4kHz;
- SKP_int min_lag, min_lag_8kHz, min_lag_4kHz;
- SKP_int max_lag, max_lag_8kHz, max_lag_4kHz;
- SKP_int32 contour_bias, diff;
- SKP_int32 lz, lshift;
- SKP_int cbk_offset, cbk_size, nb_cbks_stage2;
- SKP_int32 delta_lag_log2_sqr_Q7, lag_log2_Q7, prevLag_log2_Q7, prev_lag_bias_Q15, corr_thres_Q15;
-
- /* Check for valid sampling frequency */
- SKP_assert( Fs_kHz == 8 || Fs_kHz == 12 || Fs_kHz == 16 || Fs_kHz == 24 );
-
- /* Check for valid complexity setting */
- SKP_assert( complexity >= SKP_Silk_PITCH_EST_MIN_COMPLEX );
- SKP_assert( complexity <= SKP_Silk_PITCH_EST_MAX_COMPLEX );
-
- SKP_assert( search_thres1_Q16 >= 0 && search_thres1_Q16 <= (1<<16) );
- SKP_assert( search_thres2_Q15 >= 0 && search_thres2_Q15 <= (1<<15) );
-
- /* Setup frame lengths max / min lag for the sampling frequency */
- frame_length = PITCH_EST_FRAME_LENGTH_MS * Fs_kHz;
- frame_length_4kHz = PITCH_EST_FRAME_LENGTH_MS * 4;
- frame_length_8kHz = PITCH_EST_FRAME_LENGTH_MS * 8;
- sf_length = SKP_RSHIFT( frame_length, 3 );
- sf_length_4kHz = SKP_RSHIFT( frame_length_4kHz, 3 );
- sf_length_8kHz = SKP_RSHIFT( frame_length_8kHz, 3 );
- min_lag = PITCH_EST_MIN_LAG_MS * Fs_kHz;
- min_lag_4kHz = PITCH_EST_MIN_LAG_MS * 4;
- min_lag_8kHz = PITCH_EST_MIN_LAG_MS * 8;
- max_lag = PITCH_EST_MAX_LAG_MS * Fs_kHz;
- max_lag_4kHz = PITCH_EST_MAX_LAG_MS * 4;
- max_lag_8kHz = PITCH_EST_MAX_LAG_MS * 8;
-
- SKP_memset( C, 0, sizeof( SKP_int16 ) * PITCH_EST_NB_SUBFR * ( ( PITCH_EST_MAX_LAG >> 1 ) + 5) );
-
- /* Resample from input sampled at Fs_kHz to 8 kHz */
- if( Fs_kHz == 16 ) {
- SKP_memset( filt_state, 0, 2 * sizeof( SKP_int32 ) );
- SKP_Silk_resampler_down2( filt_state, signal_8kHz, signal, frame_length );
- } else if ( Fs_kHz == 12 ) {
- SKP_int32 R23[ 6 ];
- SKP_memset( R23, 0, 6 * sizeof( SKP_int32 ) );
- SKP_Silk_resampler_down2_3( R23, signal_8kHz, signal, PITCH_EST_FRAME_LENGTH_MS * 12 );
- } else if( Fs_kHz == 24 ) {
- SKP_int32 filt_state_fix[ 8 ];
- SKP_memset( filt_state_fix, 0, 8 * sizeof(SKP_int32) );
- SKP_Silk_resampler_down3( filt_state_fix, signal_8kHz, signal, 24 * PITCH_EST_FRAME_LENGTH_MS );
- } else {
- SKP_assert( Fs_kHz == 8 );
- SKP_memcpy( signal_8kHz, signal, frame_length_8kHz * sizeof(SKP_int16) );
- }
- /* Decimate again to 4 kHz */
- SKP_memset( filt_state, 0, 2 * sizeof( SKP_int32 ) );/* Set state to zero */
- SKP_Silk_resampler_down2( filt_state, signal_4kHz, signal_8kHz, frame_length_8kHz );
-
- /* Low-pass filter */
- for( i = frame_length_4kHz - 1; i > 0; i-- ) {
- signal_4kHz[ i ] = SKP_ADD_SAT16( signal_4kHz[ i ], signal_4kHz[ i - 1 ] );
- }
-
- /*******************************************************************************
- ** Scale 4 kHz signal down to prevent correlations measures from overflowing
- ** find scaling as max scaling for each 8kHz(?) subframe
- *******************************************************************************/
-
- /* Inner product is calculated with different lengths, so scale for the worst case */
- max_sum_sq_length = SKP_max_32( sf_length_8kHz, SKP_RSHIFT( frame_length_4kHz, 1 ) );
- shift = SKP_FIX_P_Ana_find_scaling( signal_4kHz, frame_length_4kHz, max_sum_sq_length );
- if( shift > 0 ) {
- for( i = 0; i < frame_length_4kHz; i++ ) {
- signal_4kHz[ i ] = SKP_RSHIFT( signal_4kHz[ i ], shift );
- }
- }
-
- /******************************************************************************
- * FIRST STAGE, operating in 4 khz
- ******************************************************************************/
- target_ptr = &signal_4kHz[ SKP_RSHIFT( frame_length_4kHz, 1 ) ];
- for( k = 0; k < 2; k++ ) {
- /* Check that we are within range of the array */
- SKP_assert( target_ptr >= signal_4kHz );
- SKP_assert( target_ptr + sf_length_8kHz <= signal_4kHz + frame_length_4kHz );
-
- basis_ptr = target_ptr - min_lag_4kHz;
-
- /* Check that we are within range of the array */
- SKP_assert( basis_ptr >= signal_4kHz );
- SKP_assert( basis_ptr + sf_length_8kHz <= signal_4kHz + frame_length_4kHz );
-
- normalizer = 0;
- cross_corr = 0;
- /* Calculate first vector products before loop */
- cross_corr = SKP_Silk_inner_prod_aligned( target_ptr, basis_ptr, sf_length_8kHz );
- normalizer = SKP_Silk_inner_prod_aligned( basis_ptr, basis_ptr, sf_length_8kHz );
- normalizer = SKP_ADD_SAT32( normalizer, SKP_SMULBB( sf_length_8kHz, 4000 ) );
-
- temp32 = SKP_DIV32( cross_corr, SKP_Silk_SQRT_APPROX( normalizer ) + 1 );
- C[ k ][ min_lag_4kHz ] = (SKP_int16)SKP_SAT16( temp32 ); /* Q0 */
-
- /* From now on normalizer is computed recursively */
- for( d = min_lag_4kHz + 1; d <= max_lag_4kHz; d++ ) {
- basis_ptr--;
-
- /* Check that we are within range of the array */
- SKP_assert( basis_ptr >= signal_4kHz );
- SKP_assert( basis_ptr + sf_length_8kHz <= signal_4kHz + frame_length_4kHz );
-
- cross_corr = SKP_Silk_inner_prod_aligned( target_ptr, basis_ptr, sf_length_8kHz );
-
- /* Add contribution of new sample and remove contribution from oldest sample */
- normalizer +=
- SKP_SMULBB( basis_ptr[ 0 ], basis_ptr[ 0 ] ) -
- SKP_SMULBB( basis_ptr[ sf_length_8kHz ], basis_ptr[ sf_length_8kHz ] );
-
- temp32 = SKP_DIV32( cross_corr, SKP_Silk_SQRT_APPROX( normalizer ) + 1 );
- C[ k ][ d ] = (SKP_int16)SKP_SAT16( temp32 ); /* Q0 */
- }
- /* Update target pointer */
- target_ptr += sf_length_8kHz;
- }
-
- /* Combine two subframes into single correlation measure and apply short-lag bias */
- for( i = max_lag_4kHz; i >= min_lag_4kHz; i-- ) {
- sum = (SKP_int32)C[ 0 ][ i ] + (SKP_int32)C[ 1 ][ i ]; /* Q0 */
- SKP_assert( SKP_RSHIFT( sum, 1 ) == SKP_SAT16( SKP_RSHIFT( sum, 1 ) ) );
- sum = SKP_RSHIFT( sum, 1 ); /* Q-1 */
- SKP_assert( SKP_LSHIFT( (SKP_int32)-i, 4 ) == SKP_SAT16( SKP_LSHIFT( (SKP_int32)-i, 4 ) ) );
- sum = SKP_SMLAWB( sum, sum, SKP_LSHIFT( -i, 4 ) ); /* Q-1 */
- SKP_assert( sum == SKP_SAT16( sum ) );
- C[ 0 ][ i ] = (SKP_int16)sum; /* Q-1 */
- }
-
- /* Sort */
- length_d_srch = 4 + 2 * complexity;
- SKP_assert( 3 * length_d_srch <= PITCH_EST_D_SRCH_LENGTH );
- SKP_Silk_insertion_sort_decreasing_int16( &C[ 0 ][ min_lag_4kHz ], d_srch, max_lag_4kHz - min_lag_4kHz + 1, length_d_srch );
-
- /* Escape if correlation is very low already here */
- target_ptr = &signal_4kHz[ SKP_RSHIFT( frame_length_4kHz, 1 ) ];
- energy = SKP_Silk_inner_prod_aligned( target_ptr, target_ptr, SKP_RSHIFT( frame_length_4kHz, 1 ) );
- energy = SKP_ADD_POS_SAT32( energy, 1000 ); /* Q0 */
- Cmax = (SKP_int)C[ 0 ][ min_lag_4kHz ]; /* Q-1 */
- threshold = SKP_SMULBB( Cmax, Cmax ); /* Q-2 */
- /* Compare in Q-2 domain */
- if( SKP_RSHIFT( energy, 4 + 2 ) > threshold ) {
- SKP_memset( pitch_out, 0, PITCH_EST_NB_SUBFR * sizeof( SKP_int ) );
- *LTPCorr_Q15 = 0;
- *lagIndex = 0;
- *contourIndex = 0;
- return 1;
- }
-
- threshold = SKP_SMULWB( search_thres1_Q16, Cmax );
- for( i = 0; i < length_d_srch; i++ ) {
- /* Convert to 8 kHz indices for the sorted correlation that exceeds the threshold */
- if( C[ 0 ][ min_lag_4kHz + i ] > threshold ) {
- d_srch[ i ] = SKP_LSHIFT( d_srch[ i ] + min_lag_4kHz, 1 );
- } else {
- length_d_srch = i;
- break;
- }
- }
- SKP_assert( length_d_srch > 0 );
-
- for( i = min_lag_8kHz - 5; i < max_lag_8kHz + 5; i++ ) {
- d_comp[ i ] = 0;
- }
- for( i = 0; i < length_d_srch; i++ ) {
- d_comp[ d_srch[ i ] ] = 1;
- }
-
- /* Convolution */
- for( i = max_lag_8kHz + 3; i >= min_lag_8kHz; i-- ) {
- d_comp[ i ] += d_comp[ i - 1 ] + d_comp[ i - 2 ];
- }
-
- length_d_srch = 0;
- for( i = min_lag_8kHz; i < max_lag_8kHz + 1; i++ ) {
- if( d_comp[ i + 1 ] > 0 ) {
- d_srch[ length_d_srch ] = i;
- length_d_srch++;
- }
- }
-
- /* Convolution */
- for( i = max_lag_8kHz + 3; i >= min_lag_8kHz; i-- ) {
- d_comp[ i ] += d_comp[ i - 1 ] + d_comp[ i - 2 ] + d_comp[ i - 3 ];
- }
-
- length_d_comp = 0;
- for( i = min_lag_8kHz; i < max_lag_8kHz + 4; i++ ) {
- if( d_comp[ i ] > 0 ) {
- d_comp[ length_d_comp ] = i - 2;
- length_d_comp++;
- }
- }
-
- /**********************************************************************************
- ** SECOND STAGE, operating at 8 kHz, on lag sections with high correlation
- *************************************************************************************/
-
- /******************************************************************************
- ** Scale signal down to avoid correlations measures from overflowing
- *******************************************************************************/
- /* find scaling as max scaling for each subframe */
- shift = SKP_FIX_P_Ana_find_scaling( signal_8kHz, frame_length_8kHz, sf_length_8kHz );
- if( shift > 0 ) {
- for( i = 0; i < frame_length_8kHz; i++ ) {
- signal_8kHz[ i ] = SKP_RSHIFT( signal_8kHz[ i ], shift );
- }
- }
-
- /*********************************************************************************
- * Find energy of each subframe projected onto its history, for a range of delays
- *********************************************************************************/
- SKP_memset( C, 0, PITCH_EST_NB_SUBFR * ( ( PITCH_EST_MAX_LAG >> 1 ) + 5 ) * sizeof( SKP_int16 ) );
-
- target_ptr = &signal_8kHz[ frame_length_4kHz ]; /* point to middle of frame */
- for( k = 0; k < PITCH_EST_NB_SUBFR; k++ ) {
-
- /* Check that we are within range of the array */
- SKP_assert( target_ptr >= signal_8kHz );
- SKP_assert( target_ptr + sf_length_8kHz <= signal_8kHz + frame_length_8kHz );
-
- energy_target = SKP_Silk_inner_prod_aligned( target_ptr, target_ptr, sf_length_8kHz );
- // ToDo: Calculate 1 / energy_target here and save one division inside next for loop
- for( j = 0; j < length_d_comp; j++ ) {
- d = d_comp[ j ];
- basis_ptr = target_ptr - d;
-
- /* Check that we are within range of the array */
- SKP_assert( basis_ptr >= signal_8kHz );
- SKP_assert( basis_ptr + sf_length_8kHz <= signal_8kHz + frame_length_8kHz );
-
- cross_corr = SKP_Silk_inner_prod_aligned( target_ptr, basis_ptr, sf_length_8kHz );
- energy_basis = SKP_Silk_inner_prod_aligned( basis_ptr, basis_ptr, sf_length_8kHz );
- if( cross_corr > 0 ) {
- energy = SKP_max( energy_target, energy_basis ); /* Find max to make sure first division < 1.0 */
- lz = SKP_Silk_CLZ32( cross_corr );
- lshift = SKP_LIMIT_32( lz - 1, 0, 15 );
- temp32 = SKP_DIV32( SKP_LSHIFT( cross_corr, lshift ), SKP_RSHIFT( energy, 15 - lshift ) + 1 ); /* Q15 */
- SKP_assert( temp32 == SKP_SAT16( temp32 ) );
- temp32 = SKP_SMULWB( cross_corr, temp32 ); /* Q(-1), cc * ( cc / max(b, t) ) */
- temp32 = SKP_ADD_SAT32( temp32, temp32 ); /* Q(0) */
- lz = SKP_Silk_CLZ32( temp32 );
- lshift = SKP_LIMIT_32( lz - 1, 0, 15 );
- energy = SKP_min( energy_target, energy_basis );
- C[ k ][ d ] = SKP_DIV32( SKP_LSHIFT( temp32, lshift ), SKP_RSHIFT( energy, 15 - lshift ) + 1 ); // Q15
- } else {
- C[ k ][ d ] = 0;
- }
- }
- target_ptr += sf_length_8kHz;
- }
-
- /* search over lag range and lags codebook */
- /* scale factor for lag codebook, as a function of center lag */
-
- CCmax = SKP_int32_MIN;
- CCmax_b = SKP_int32_MIN;
-
- CBimax = 0; /* To avoid returning undefined lag values */
- lag = -1; /* To check if lag with strong enough correlation has been found */
-
- if( prevLag > 0 ) {
- if( Fs_kHz == 12 ) {
- prevLag = SKP_DIV32_16( SKP_LSHIFT( prevLag, 1 ), 3 );
- } else if( Fs_kHz == 16 ) {
- prevLag = SKP_RSHIFT( prevLag, 1 );
- } else if( Fs_kHz == 24 ) {
- prevLag = SKP_DIV32_16( prevLag, 3 );
- }
- prevLag_log2_Q7 = SKP_Silk_lin2log( (SKP_int32)prevLag );
- } else {
- prevLag_log2_Q7 = 0;
- }
- SKP_assert( search_thres2_Q15 == SKP_SAT16( search_thres2_Q15 ) );
- corr_thres_Q15 = SKP_RSHIFT( SKP_SMULBB( search_thres2_Q15, search_thres2_Q15 ), 13 );
-
- /* If input is 8 khz use a larger codebook here because it is last stage */
- if( Fs_kHz == 8 && complexity > SKP_Silk_PITCH_EST_MIN_COMPLEX ) {
- nb_cbks_stage2 = PITCH_EST_NB_CBKS_STAGE2_EXT;
- } else {
- nb_cbks_stage2 = PITCH_EST_NB_CBKS_STAGE2;
- }
-
- for( k = 0; k < length_d_srch; k++ ) {
- d = d_srch[ k ];
- for( j = 0; j < nb_cbks_stage2; j++ ) {
- CC[ j ] = 0;
- for( i = 0; i < PITCH_EST_NB_SUBFR; i++ ) {
- /* Try all codebooks */
- CC[ j ] = CC[ j ] + (SKP_int32)C[ i ][ d + SKP_Silk_CB_lags_stage2[ i ][ j ] ];
- }
- }
- /* Find best codebook */
- CCmax_new = SKP_int32_MIN;
- CBimax_new = 0;
- for( i = 0; i < nb_cbks_stage2; i++ ) {
- if( CC[ i ] > CCmax_new ) {
- CCmax_new = CC[ i ];
- CBimax_new = i;
- }
- }
-
- /* Bias towards shorter lags */
- lag_log2_Q7 = SKP_Silk_lin2log( (SKP_int32)d ); /* Q7 */
- SKP_assert( lag_log2_Q7 == SKP_SAT16( lag_log2_Q7 ) );
- SKP_assert( PITCH_EST_NB_SUBFR * PITCH_EST_SHORTLAG_BIAS_Q15 == SKP_SAT16( PITCH_EST_NB_SUBFR * PITCH_EST_SHORTLAG_BIAS_Q15 ) );
-
- if (forLJC) {
- CCmax_new_b = CCmax_new;
- } else {
- CCmax_new_b = CCmax_new - SKP_RSHIFT( SKP_SMULBB( PITCH_EST_NB_SUBFR * PITCH_EST_SHORTLAG_BIAS_Q15, lag_log2_Q7 ), 7 ); /* Q15 */
- }
-
- /* Bias towards previous lag */
- SKP_assert( PITCH_EST_NB_SUBFR * PITCH_EST_PREVLAG_BIAS_Q15 == SKP_SAT16( PITCH_EST_NB_SUBFR * PITCH_EST_PREVLAG_BIAS_Q15 ) );
- if( prevLag > 0 ) {
- delta_lag_log2_sqr_Q7 = lag_log2_Q7 - prevLag_log2_Q7;
- SKP_assert( delta_lag_log2_sqr_Q7 == SKP_SAT16( delta_lag_log2_sqr_Q7 ) );
- delta_lag_log2_sqr_Q7 = SKP_RSHIFT( SKP_SMULBB( delta_lag_log2_sqr_Q7, delta_lag_log2_sqr_Q7 ), 7 );
- prev_lag_bias_Q15 = SKP_RSHIFT( SKP_SMULBB( PITCH_EST_NB_SUBFR * PITCH_EST_PREVLAG_BIAS_Q15, ( *LTPCorr_Q15 ) ), 15 ); /* Q15 */
- prev_lag_bias_Q15 = SKP_DIV32( SKP_MUL( prev_lag_bias_Q15, delta_lag_log2_sqr_Q7 ), delta_lag_log2_sqr_Q7 + ( 1 << 6 ) );
- CCmax_new_b -= prev_lag_bias_Q15; /* Q15 */
- }
-
- if ( CCmax_new_b > CCmax_b && /* Find maximum biased correlation */
- CCmax_new > corr_thres_Q15 && /* Correlation needs to be high enough to be voiced */
- SKP_Silk_CB_lags_stage2[ 0 ][ CBimax_new ] <= min_lag_8kHz /* Lag must be in range */
- ) {
- CCmax_b = CCmax_new_b;
- CCmax = CCmax_new;
- lag = d;
- CBimax = CBimax_new;
- }
- }
-
- if( lag == -1 ) {
- /* No suitable candidate found */
- SKP_memset( pitch_out, 0, PITCH_EST_NB_SUBFR * sizeof( SKP_int ) );
- *LTPCorr_Q15 = 0;
- *lagIndex = 0;
- *contourIndex = 0;
- return 1;
- }
-
- if( Fs_kHz > 8 ) {
-
- /******************************************************************************
- ** Scale input signal down to avoid correlations measures from overflowing
- *******************************************************************************/
- /* find scaling as max scaling for each subframe */
- shift = SKP_FIX_P_Ana_find_scaling( signal, frame_length, sf_length );
- if( shift > 0 ) {
- /* Move signal to scratch mem because the input signal should be unchanged */
- /* Reuse the 32 bit scratch mem vector, use a 16 bit pointer from now */
- input_signal_ptr = (SKP_int16*)scratch_mem;
- for( i = 0; i < frame_length; i++ ) {
- input_signal_ptr[ i ] = SKP_RSHIFT( signal[ i ], shift );
- }
- } else {
- input_signal_ptr = (SKP_int16*)signal;
- }
- /*********************************************************************************/
-
- /* Search in original signal */
-
- CBimax_old = CBimax;
- /* Compensate for decimation */
- SKP_assert( lag == SKP_SAT16( lag ) );
- if( Fs_kHz == 12 ) {
- lag = SKP_RSHIFT( SKP_SMULBB( lag, 3 ), 1 );
- } else if( Fs_kHz == 16 ) {
- lag = SKP_LSHIFT( lag, 1 );
- } else {
- lag = SKP_SMULBB( lag, 3 );
- }
-
- lag = SKP_LIMIT_int( lag, min_lag, max_lag );
- start_lag = SKP_max_int( lag - 2, min_lag );
- end_lag = SKP_min_int( lag + 2, max_lag );
- lag_new = lag; /* to avoid undefined lag */
- CBimax = 0; /* to avoid undefined lag */
- SKP_assert( SKP_LSHIFT( CCmax, 13 ) >= 0 );
- *LTPCorr_Q15 = (SKP_int)SKP_Silk_SQRT_APPROX( SKP_LSHIFT( CCmax, 13 ) ); /* Output normalized correlation */
-
- CCmax = SKP_int32_MIN;
- /* pitch lags according to second stage */
- for( k = 0; k < PITCH_EST_NB_SUBFR; k++ ) {
- pitch_out[ k ] = lag + 2 * SKP_Silk_CB_lags_stage2[ k ][ CBimax_old ];
- }
- /* Calculate the correlations and energies needed in stage 3 */
- SKP_FIX_P_Ana_calc_corr_st3( crosscorr_st3, input_signal_ptr, start_lag, sf_length, complexity );
- SKP_FIX_P_Ana_calc_energy_st3( energies_st3, input_signal_ptr, start_lag, sf_length, complexity );
-
- lag_counter = 0;
- SKP_assert( lag == SKP_SAT16( lag ) );
- contour_bias = SKP_DIV32_16( PITCH_EST_FLATCONTOUR_BIAS_Q20, lag );
-
- /* Setup cbk parameters acording to complexity setting */
- cbk_size = (SKP_int)SKP_Silk_cbk_sizes_stage3[ complexity ];
- cbk_offset = (SKP_int)SKP_Silk_cbk_offsets_stage3[ complexity ];
-
- for( d = start_lag; d <= end_lag; d++ ) {
- for( j = cbk_offset; j < ( cbk_offset + cbk_size ); j++ ) {
- cross_corr = 0;
- energy = 0;
- for( k = 0; k < PITCH_EST_NB_SUBFR; k++ ) {
- SKP_assert( PITCH_EST_NB_SUBFR == 4 );
- energy += SKP_RSHIFT( energies_st3[ k ][ j ][ lag_counter ], 2 ); /* use mean, to avoid overflow */
- SKP_assert( energy >= 0 );
- cross_corr += SKP_RSHIFT( crosscorr_st3[ k ][ j ][ lag_counter ], 2 ); /* use mean, to avoid overflow */
- }
- if( cross_corr > 0 ) {
- /* Divide cross_corr / energy and get result in Q15 */
- lz = SKP_Silk_CLZ32( cross_corr );
- /* Divide with result in Q13, cross_corr could be larger than energy */
- lshift = SKP_LIMIT_32( lz - 1, 0, 13 );
- CCmax_new = SKP_DIV32( SKP_LSHIFT( cross_corr, lshift ), SKP_RSHIFT( energy, 13 - lshift ) + 1 );
- CCmax_new = SKP_SAT16( CCmax_new );
- CCmax_new = SKP_SMULWB( cross_corr, CCmax_new );
- /* Saturate */
- if( CCmax_new > SKP_RSHIFT( SKP_int32_MAX, 3 ) ) {
- CCmax_new = SKP_int32_MAX;
- } else {
- CCmax_new = SKP_LSHIFT( CCmax_new, 3 );
- }
- /* Reduce depending on flatness of contour */
- diff = j - SKP_RSHIFT( PITCH_EST_NB_CBKS_STAGE3_MAX, 1 );
- diff = SKP_MUL( diff, diff );
- diff = SKP_int16_MAX - SKP_RSHIFT( SKP_MUL( contour_bias, diff ), 5 ); /* Q20 -> Q15 */
- SKP_assert( diff == SKP_SAT16( diff ) );
- CCmax_new = SKP_LSHIFT( SKP_SMULWB( CCmax_new, diff ), 1 );
- } else {
- CCmax_new = 0;
- }
-
- if( CCmax_new > CCmax &&
- ( d + (SKP_int)SKP_Silk_CB_lags_stage3[ 0 ][ j ] ) <= max_lag
- ) {
- CCmax = CCmax_new;
- lag_new = d;
- CBimax = j;
- }
- }
- lag_counter++;
- }
-
- for( k = 0; k < PITCH_EST_NB_SUBFR; k++ ) {
- pitch_out[ k ] = lag_new + SKP_Silk_CB_lags_stage3[ k ][ CBimax ];
- }
- *lagIndex = lag_new - min_lag;
- *contourIndex = CBimax;
- } else {
- /* Save Lags and correlation */
- CCmax = SKP_max( CCmax, 0 );
- *LTPCorr_Q15 = (SKP_int)SKP_Silk_SQRT_APPROX( SKP_LSHIFT( CCmax, 13 ) ); /* Output normalized correlation */
- for( k = 0; k < PITCH_EST_NB_SUBFR; k++ ) {
- pitch_out[ k ] = lag + SKP_Silk_CB_lags_stage2[ k ][ CBimax ];
- }
- *lagIndex = lag - min_lag_8kHz;
- *contourIndex = CBimax;
- }
- SKP_assert( *lagIndex >= 0 );
- /* return as voiced */
- return 0;
-}
-
-/*************************************************************************/
-/* Calculates the correlations used in stage 3 search. In order to cover */
-/* the whole lag codebook for all the searched offset lags (lag +- 2), */
-/*************************************************************************/
-void SKP_FIX_P_Ana_calc_corr_st3(
- SKP_int32 cross_corr_st3[ PITCH_EST_NB_SUBFR ][ PITCH_EST_NB_CBKS_STAGE3_MAX ][ PITCH_EST_NB_STAGE3_LAGS ],/* (O) 3 DIM correlation array */
- const SKP_int16 signal[], /* I vector to correlate */
- SKP_int start_lag, /* I lag offset to search around */
- SKP_int sf_length, /* I length of a 5 ms subframe */
- SKP_int complexity /* I Complexity setting */
-)
-{
- const SKP_int16 *target_ptr, *basis_ptr;
- SKP_int32 cross_corr;
- SKP_int i, j, k, lag_counter;
- SKP_int cbk_offset, cbk_size, delta, idx;
- SKP_int32 scratch_mem[ SCRATCH_SIZE ];
-
- SKP_assert( complexity >= SKP_Silk_PITCH_EST_MIN_COMPLEX );
- SKP_assert( complexity <= SKP_Silk_PITCH_EST_MAX_COMPLEX );
-
- cbk_offset = SKP_Silk_cbk_offsets_stage3[ complexity ];
- cbk_size = SKP_Silk_cbk_sizes_stage3[ complexity ];
-
- target_ptr = &signal[ SKP_LSHIFT( sf_length, 2 ) ]; /* Pointer to middle of frame */
- for( k = 0; k < PITCH_EST_NB_SUBFR; k++ ) {
- lag_counter = 0;
-
- /* Calculate the correlations for each subframe */
- for( j = SKP_Silk_Lag_range_stage3[ complexity ][ k ][ 0 ]; j <= SKP_Silk_Lag_range_stage3[ complexity ][ k ][ 1 ]; j++ ) {
- basis_ptr = target_ptr - ( start_lag + j );
- cross_corr = SKP_Silk_inner_prod_aligned( (SKP_int16*)target_ptr, (SKP_int16*)basis_ptr, sf_length );
- SKP_assert( lag_counter < SCRATCH_SIZE );
- scratch_mem[ lag_counter ] = cross_corr;
- lag_counter++;
- }
-
- delta = SKP_Silk_Lag_range_stage3[ complexity ][ k ][ 0 ];
- for( i = cbk_offset; i < ( cbk_offset + cbk_size ); i++ ) {
- /* Fill out the 3 dim array that stores the correlations for */
- /* each code_book vector for each start lag */
- idx = SKP_Silk_CB_lags_stage3[ k ][ i ] - delta;
- for( j = 0; j < PITCH_EST_NB_STAGE3_LAGS; j++ ) {
- SKP_assert( idx + j < SCRATCH_SIZE );
- SKP_assert( idx + j < lag_counter );
- cross_corr_st3[ k ][ i ][ j ] = scratch_mem[ idx + j ];
- }
- }
- target_ptr += sf_length;
- }
-}
-
-/********************************************************************/
-/* Calculate the energies for first two subframes. The energies are */
-/* calculated recursively. */
-/********************************************************************/
-void SKP_FIX_P_Ana_calc_energy_st3(
- SKP_int32 energies_st3[ PITCH_EST_NB_SUBFR ][ PITCH_EST_NB_CBKS_STAGE3_MAX ][ PITCH_EST_NB_STAGE3_LAGS ],/* (O) 3 DIM energy array */
- const SKP_int16 signal[], /* I vector to calc energy in */
- SKP_int start_lag, /* I lag offset to search around */
- SKP_int sf_length, /* I length of one 5 ms subframe */
- SKP_int complexity /* I Complexity setting */
-)
-{
- const SKP_int16 *target_ptr, *basis_ptr;
- SKP_int32 energy;
- SKP_int k, i, j, lag_counter;
- SKP_int cbk_offset, cbk_size, delta, idx;
- SKP_int32 scratch_mem[ SCRATCH_SIZE ];
-
- SKP_assert( complexity >= SKP_Silk_PITCH_EST_MIN_COMPLEX );
- SKP_assert( complexity <= SKP_Silk_PITCH_EST_MAX_COMPLEX );
-
- cbk_offset = SKP_Silk_cbk_offsets_stage3[ complexity ];
- cbk_size = SKP_Silk_cbk_sizes_stage3[ complexity ];
-
- target_ptr = &signal[ SKP_LSHIFT( sf_length, 2 ) ];
- for( k = 0; k < PITCH_EST_NB_SUBFR; k++ ) {
- lag_counter = 0;
-
- /* Calculate the energy for first lag */
- basis_ptr = target_ptr - ( start_lag + SKP_Silk_Lag_range_stage3[ complexity ][ k ][ 0 ] );
- energy = SKP_Silk_inner_prod_aligned( basis_ptr, basis_ptr, sf_length );
- SKP_assert( energy >= 0 );
- scratch_mem[ lag_counter ] = energy;
- lag_counter++;
-
- for( i = 1; i < ( SKP_Silk_Lag_range_stage3[ complexity ][ k ][ 1 ] - SKP_Silk_Lag_range_stage3[ complexity ][ k ][ 0 ] + 1 ); i++ ) {
- /* remove part outside new window */
- energy -= SKP_SMULBB( basis_ptr[ sf_length - i ], basis_ptr[ sf_length - i ] );
- SKP_assert( energy >= 0 );
-
- /* add part that comes into window */
- energy = SKP_ADD_SAT32( energy, SKP_SMULBB( basis_ptr[ -i ], basis_ptr[ -i ] ) );
- SKP_assert( energy >= 0 );
- SKP_assert( lag_counter < SCRATCH_SIZE );
- scratch_mem[ lag_counter ] = energy;
- lag_counter++;
- }
-
- delta = SKP_Silk_Lag_range_stage3[ complexity ][ k ][ 0 ];
- for( i = cbk_offset; i < ( cbk_offset + cbk_size ); i++ ) {
- /* Fill out the 3 dim array that stores the correlations for */
- /* each code_book vector for each start lag */
- idx = SKP_Silk_CB_lags_stage3[ k ][ i ] - delta;
- for( j = 0; j < PITCH_EST_NB_STAGE3_LAGS; j++ ) {
- SKP_assert( idx + j < SCRATCH_SIZE );
- SKP_assert( idx + j < lag_counter );
- energies_st3[ k ][ i ][ j ] = scratch_mem[ idx + j ];
- SKP_assert( energies_st3[ k ][ i ][ j ] >= 0.0f );
- }
- }
- target_ptr += sf_length;
- }
-}
-
-SKP_int32 SKP_FIX_P_Ana_find_scaling(
- const SKP_int16 *signal,
- const SKP_int signal_length,
- const SKP_int sum_sqr_len
-)
-{
- SKP_int32 nbits, x_max;
-
- x_max = SKP_Silk_int16_array_maxabs( signal, signal_length );
-
- if( x_max < SKP_int16_MAX ) {
- /* Number of bits needed for the sum of the squares */
- nbits = 32 - SKP_Silk_CLZ32( SKP_SMULBB( x_max, x_max ) );
- } else {
- /* Here we don't know if x_max should have been SKP_int16_MAX + 1, so we expect the worst case */
- nbits = 30;
- }
- nbits += 17 - SKP_Silk_CLZ16( sum_sqr_len );
-
- /* Without a guarantee of saturation, we need to keep the 31st bit free */
- if( nbits < 31 ) {
- return 0;
- } else {
- return( nbits - 30 );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SIGPROCFIX_PITCH_EST_DEFINES_H
-#define SIGPROCFIX_PITCH_EST_DEFINES_H
-
-/************************************************************/
-/* Definitions For Fix pitch estimator */
-/************************************************************/
-
-#define PITCH_EST_SHORTLAG_BIAS_Q15 6554 /* 0.2f. for logarithmic weighting */
-#define PITCH_EST_PREVLAG_BIAS_Q15 6554 /* Prev lag bias */
-#define PITCH_EST_FLATCONTOUR_BIAS_Q20 52429 /* 0.05f */
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_common_pitch_est_defines.h"
-
-/********************************************************/
-/* Auto Generated File from generate_pitch_est_tables.m */
-/********************************************************/
-
-const SKP_int16 SKP_Silk_CB_lags_stage2[PITCH_EST_NB_SUBFR][PITCH_EST_NB_CBKS_STAGE2_EXT] =
-{
- {0, 2,-1,-1,-1, 0, 0, 1, 1, 0, 1},
- {0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0},
- {0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0},
- {0,-1, 2, 1, 0, 1, 1, 0, 0,-1,-1}
-};
-
-const SKP_int16 SKP_Silk_CB_lags_stage3[PITCH_EST_NB_SUBFR][PITCH_EST_NB_CBKS_STAGE3_MAX] =
-{
- {-9,-7,-6,-5,-5,-4,-4,-3,-3,-2,-2,-2,-1,-1,-1, 0, 0, 0, 1, 1, 0, 1, 2, 2, 2, 3, 3, 4, 4, 5, 6, 5, 6, 8},
- {-3,-2,-2,-2,-1,-1,-1,-1,-1, 0, 0,-1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 2, 1, 2, 2, 2, 2, 3},
- { 3, 3, 2, 2, 2, 2, 1, 2, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,-1, 0, 0,-1,-1,-1,-1,-1,-2,-2,-2},
- { 9, 8, 6, 5, 6, 5, 4, 4, 3, 3, 2, 2, 2, 1, 0, 1, 1, 0, 0, 0,-1,-1,-1,-2,-2,-2,-3,-3,-4,-4,-5,-5,-6,-7}
- };
-
-const SKP_int16 SKP_Silk_Lag_range_stage3[ SKP_Silk_PITCH_EST_MAX_COMPLEX + 1 ] [ PITCH_EST_NB_SUBFR ][ 2 ] =
-{
- /* Lags to search for low number of stage3 cbks */
- {
- {-2,6},
- {-1,5},
- {-1,5},
- {-2,7}
- },
- /* Lags to search for middle number of stage3 cbks */
- {
- {-4,8},
- {-1,6},
- {-1,6},
- {-4,9}
- },
- /* Lags to search for max number of stage3 cbks */
- {
- {-9,12},
- {-3,7},
- {-2,7},
- {-7,13}
- }
-};
-
-const SKP_int16 SKP_Silk_cbk_sizes_stage3[SKP_Silk_PITCH_EST_MAX_COMPLEX + 1] =
-{
- PITCH_EST_NB_CBKS_STAGE3_MIN,
- PITCH_EST_NB_CBKS_STAGE3_MID,
- PITCH_EST_NB_CBKS_STAGE3_MAX
-};
-
-const SKP_int16 SKP_Silk_cbk_offsets_stage3[SKP_Silk_PITCH_EST_MAX_COMPLEX + 1] =
-{
- ((PITCH_EST_NB_CBKS_STAGE3_MAX - PITCH_EST_NB_CBKS_STAGE3_MIN) >> 1),
- ((PITCH_EST_NB_CBKS_STAGE3_MAX - PITCH_EST_NB_CBKS_STAGE3_MID) >> 1),
- 0
-};
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
-
-/* SKP_Silk_prefilter. Prefilter for finding Quantizer input signal */
-SKP_INLINE void SKP_Silk_prefilt_FIX(
- SKP_Silk_prefilter_state_FIX *P, /* I/O state */
- SKP_int32 st_res_Q12[], /* I short term residual signal */
- SKP_int16 xw[], /* O prefiltered signal */
- SKP_int32 HarmShapeFIRPacked_Q12, /* I Harmonic shaping coeficients */
- SKP_int Tilt_Q14, /* I Tilt shaping coeficient */
- SKP_int32 LF_shp_Q14, /* I Low-frequancy shaping coeficients*/
- SKP_int lag, /* I Lag for harmonic shaping */
- SKP_int length /* I Length of signals */
-);
-void SKP_Silk_warped_LPC_analysis_filter_FIX(
- SKP_int32 state[], /* I/O State [order + 1] */
- SKP_int16 res[], /* O Residual signal [length] */
- const SKP_int16 coef_Q13[], /* I Coefficients [order] */
- const SKP_int16 input[], /* I Input signal [length] */
- const SKP_int16 lambda_Q16, /* I Warping factor */
- const SKP_int length, /* I Length of input signal */
- const SKP_int order /* I Filter order (even) */
-)
-{
- SKP_int n, i;
- SKP_int32 acc_Q11, tmp1, tmp2;
-
- /* Order must be even */
- SKP_assert( ( order & 1 ) == 0 );
-
- for( n = 0; n < length; n++ ) {
- /* Output of lowpass section */
- tmp2 = SKP_SMLAWB( state[ 0 ], state[ 1 ], lambda_Q16 );
- state[ 0 ] = SKP_LSHIFT( input[ n ], 14 );
- /* Output of allpass section */
- tmp1 = SKP_SMLAWB( state[ 1 ], state[ 2 ] - tmp2, lambda_Q16 );
- state[ 1 ] = tmp2;
- acc_Q11 = SKP_SMULWB( tmp2, coef_Q13[ 0 ] );
- /* Loop over allpass sections */
- for( i = 2; i < order; i += 2 ) {
- /* Output of allpass section */
- tmp2 = SKP_SMLAWB( state[ i ], state[ i + 1 ] - tmp1, lambda_Q16 );
- state[ i ] = tmp1;
- acc_Q11 = SKP_SMLAWB( acc_Q11, tmp1, coef_Q13[ i - 1 ] );
- /* Output of allpass section */
- tmp1 = SKP_SMLAWB( state[ i + 1 ], state[ i + 2 ] - tmp2, lambda_Q16 );
- state[ i + 1 ] = tmp2;
- acc_Q11 = SKP_SMLAWB( acc_Q11, tmp2, coef_Q13[ i ] );
- }
- state[ order ] = tmp1;
- acc_Q11 = SKP_SMLAWB( acc_Q11, tmp1, coef_Q13[ order - 1 ] );
- res[ n ] = ( SKP_int16 )SKP_SAT16( ( SKP_int32 )input[ n ] - SKP_RSHIFT_ROUND( acc_Q11, 11 ) );
- }
-}
-
-void SKP_Silk_prefilter_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Encoder state FIX */
- const SKP_Silk_encoder_control_FIX *psEncCtrl, /* I Encoder control FIX */
- SKP_int16 xw[], /* O Weighted signal */
- const SKP_int16 x[] /* I Speech signal */
-)
-{
- SKP_Silk_prefilter_state_FIX *P = &psEnc->sPrefilt;
- SKP_int j, k, lag;
- SKP_int32 tmp_32;
- const SKP_int16 *AR1_shp_Q13;
- const SKP_int16 *px;
- SKP_int16 *pxw;
- SKP_int HarmShapeGain_Q12, Tilt_Q14;
- SKP_int32 HarmShapeFIRPacked_Q12, LF_shp_Q14;
- SKP_int32 x_filt_Q12[ MAX_FRAME_LENGTH / NB_SUBFR ];
- SKP_int16 st_res[ ( MAX_FRAME_LENGTH / NB_SUBFR ) + MAX_SHAPE_LPC_ORDER ];
- SKP_int16 B_Q12[ 2 ];
-
- /* Setup pointers */
- px = x;
- pxw = xw;
- lag = P->lagPrev;
- for( k = 0; k < NB_SUBFR; k++ ) {
- /* Update Variables that change per sub frame */
- if( psEncCtrl->sCmn.sigtype == SIG_TYPE_VOICED ) {
- lag = psEncCtrl->sCmn.pitchL[ k ];
- }
-
- /* Noise shape parameters */
- HarmShapeGain_Q12 = SKP_SMULWB( psEncCtrl->HarmShapeGain_Q14[ k ], 16384 - psEncCtrl->HarmBoost_Q14[ k ] );
- SKP_assert( HarmShapeGain_Q12 >= 0 );
- HarmShapeFIRPacked_Q12 = SKP_RSHIFT( HarmShapeGain_Q12, 2 );
- HarmShapeFIRPacked_Q12 |= SKP_LSHIFT( ( SKP_int32 )SKP_RSHIFT( HarmShapeGain_Q12, 1 ), 16 );
- Tilt_Q14 = psEncCtrl->Tilt_Q14[ k ];
- LF_shp_Q14 = psEncCtrl->LF_shp_Q14[ k ];
- AR1_shp_Q13 = &psEncCtrl->AR1_Q13[ k * MAX_SHAPE_LPC_ORDER ];
-
- /* Short term FIR filtering*/
- SKP_Silk_warped_LPC_analysis_filter_FIX( P->sAR_shp, st_res, AR1_shp_Q13, px,
- psEnc->sCmn.warping_Q16, psEnc->sCmn.subfr_length, psEnc->sCmn.shapingLPCOrder );
-
- /* reduce (mainly) low frequencies during harmonic emphasis */
- B_Q12[ 0 ] = SKP_RSHIFT_ROUND( psEncCtrl->GainsPre_Q14[ k ], 2 );
- tmp_32 = SKP_SMLABB( SKP_FIX_CONST( INPUT_TILT, 26 ), psEncCtrl->HarmBoost_Q14[ k ], HarmShapeGain_Q12 ); /* Q26 */
- tmp_32 = SKP_SMLABB( tmp_32, psEncCtrl->coding_quality_Q14, SKP_FIX_CONST( HIGH_RATE_INPUT_TILT, 12 ) ); /* Q26 */
- tmp_32 = SKP_SMULWB( tmp_32, -psEncCtrl->GainsPre_Q14[ k ] ); /* Q24 */
- tmp_32 = SKP_RSHIFT_ROUND( tmp_32, 12 ); /* Q12 */
- B_Q12[ 1 ]= SKP_SAT16( tmp_32 );
-
- x_filt_Q12[ 0 ] = SKP_SMLABB( SKP_SMULBB( st_res[ 0 ], B_Q12[ 0 ] ), P->sHarmHP, B_Q12[ 1 ] );
- for( j = 1; j < psEnc->sCmn.subfr_length; j++ ) {
- x_filt_Q12[ j ] = SKP_SMLABB( SKP_SMULBB( st_res[ j ], B_Q12[ 0 ] ), st_res[ j - 1 ], B_Q12[ 1 ] );
- }
- P->sHarmHP = st_res[ psEnc->sCmn.subfr_length - 1 ];
-
- SKP_Silk_prefilt_FIX( P, x_filt_Q12, pxw, HarmShapeFIRPacked_Q12, Tilt_Q14,
- LF_shp_Q14, lag, psEnc->sCmn.subfr_length );
-
- px += psEnc->sCmn.subfr_length;
- pxw += psEnc->sCmn.subfr_length;
- }
-
- P->lagPrev = psEncCtrl->sCmn.pitchL[ NB_SUBFR - 1 ];
-}
-
-/* SKP_Silk_prefilter. Prefilter for finding Quantizer input signal */
-SKP_INLINE void SKP_Silk_prefilt_FIX(
- SKP_Silk_prefilter_state_FIX *P, /* I/O state */
- SKP_int32 st_res_Q12[], /* I short term residual signal */
- SKP_int16 xw[], /* O prefiltered signal */
- SKP_int32 HarmShapeFIRPacked_Q12, /* I Harmonic shaping coeficients */
- SKP_int Tilt_Q14, /* I Tilt shaping coeficient */
- SKP_int32 LF_shp_Q14, /* I Low-frequancy shaping coeficients*/
- SKP_int lag, /* I Lag for harmonic shaping */
- SKP_int length /* I Length of signals */
-)
-{
- SKP_int i, idx, LTP_shp_buf_idx;
- SKP_int32 n_LTP_Q12, n_Tilt_Q10, n_LF_Q10;
- SKP_int32 sLF_MA_shp_Q12, sLF_AR_shp_Q12;
- SKP_int16 *LTP_shp_buf;
-
- /* To speed up use temp variables instead of using the struct */
- LTP_shp_buf = P->sLTP_shp;
- LTP_shp_buf_idx = P->sLTP_shp_buf_idx;
- sLF_AR_shp_Q12 = P->sLF_AR_shp_Q12;
- sLF_MA_shp_Q12 = P->sLF_MA_shp_Q12;
-
- for( i = 0; i < length; i++ ) {
- if( lag > 0 ) {
- /* unrolled loop */
- SKP_assert( HARM_SHAPE_FIR_TAPS == 3 );
- idx = lag + LTP_shp_buf_idx;
- n_LTP_Q12 = SKP_SMULBB( LTP_shp_buf[ ( idx - HARM_SHAPE_FIR_TAPS / 2 - 1) & LTP_MASK ], HarmShapeFIRPacked_Q12 );
- n_LTP_Q12 = SKP_SMLABT( n_LTP_Q12, LTP_shp_buf[ ( idx - HARM_SHAPE_FIR_TAPS / 2 ) & LTP_MASK ], HarmShapeFIRPacked_Q12 );
- n_LTP_Q12 = SKP_SMLABB( n_LTP_Q12, LTP_shp_buf[ ( idx - HARM_SHAPE_FIR_TAPS / 2 + 1) & LTP_MASK ], HarmShapeFIRPacked_Q12 );
- } else {
- n_LTP_Q12 = 0;
- }
-
- n_Tilt_Q10 = SKP_SMULWB( sLF_AR_shp_Q12, Tilt_Q14 );
- n_LF_Q10 = SKP_SMLAWB( SKP_SMULWT( sLF_AR_shp_Q12, LF_shp_Q14 ), sLF_MA_shp_Q12, LF_shp_Q14 );
-
- sLF_AR_shp_Q12 = SKP_SUB32( st_res_Q12[ i ], SKP_LSHIFT( n_Tilt_Q10, 2 ) );
- sLF_MA_shp_Q12 = SKP_SUB32( sLF_AR_shp_Q12, SKP_LSHIFT( n_LF_Q10, 2 ) );
-
- LTP_shp_buf_idx = ( LTP_shp_buf_idx - 1 ) & LTP_MASK;
- LTP_shp_buf[ LTP_shp_buf_idx ] = ( SKP_int16 )SKP_SAT16( SKP_RSHIFT_ROUND( sLF_MA_shp_Q12, 12 ) );
-
- xw[i] = ( SKP_int16 )SKP_SAT16( SKP_RSHIFT_ROUND( SKP_SUB32( sLF_MA_shp_Q12, n_LTP_Q12 ), 12 ) );
- }
-
- /* Copy temp variable back to state */
- P->sLF_AR_shp_Q12 = sLF_AR_shp_Q12;
- P->sLF_MA_shp_Q12 = sLF_MA_shp_Q12;
- P->sLTP_shp_buf_idx = LTP_shp_buf_idx;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-
-/* Limit, stabilize, convert and quantize NLSFs. */
-void SKP_Silk_process_NLSFs_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Encoder state FIX */
- SKP_Silk_encoder_control_FIX *psEncCtrl, /* I/O Encoder control FIX */
- SKP_int *pNLSF_Q15 /* I/O Normalized LSFs (quant out) (0 - (2^15-1)) */
-)
-{
- SKP_int doInterpolate;
- SKP_int pNLSFW_Q6[ MAX_LPC_ORDER ];
- SKP_int NLSF_mu_Q15, NLSF_mu_fluc_red_Q16;
- SKP_int32 i_sqr_Q15;
- const SKP_Silk_NLSF_CB_struct *psNLSF_CB;
-
- /* Used only for NLSF interpolation */
- SKP_int pNLSF0_temp_Q15[ MAX_LPC_ORDER ];
- SKP_int pNLSFW0_temp_Q6[ MAX_LPC_ORDER ];
- SKP_int i;
-
- SKP_assert( psEnc->speech_activity_Q8 >= 0 );
- SKP_assert( psEnc->speech_activity_Q8 <= 256 );
- SKP_assert( psEncCtrl->sparseness_Q8 >= 0 );
- SKP_assert( psEncCtrl->sparseness_Q8 <= 256 );
- SKP_assert( psEncCtrl->sCmn.sigtype == SIG_TYPE_VOICED || psEncCtrl->sCmn.sigtype == SIG_TYPE_UNVOICED );
-
- /***********************/
- /* Calculate mu values */
- /***********************/
- if( psEncCtrl->sCmn.sigtype == SIG_TYPE_VOICED ) {
- /* NLSF_mu = 0.002f - 0.001f * psEnc->speech_activity; */
- /* NLSF_mu_fluc_red = 0.1f - 0.05f * psEnc->speech_activity; */
- NLSF_mu_Q15 = SKP_SMLAWB( 66, -8388, psEnc->speech_activity_Q8 );
- NLSF_mu_fluc_red_Q16 = SKP_SMLAWB( 6554, -838848, psEnc->speech_activity_Q8 );
- } else {
- /* NLSF_mu = 0.005f - 0.004f * psEnc->speech_activity; */
- /* NLSF_mu_fluc_red = 0.2f - 0.1f * psEnc->speech_activity - 0.1f * psEncCtrl->sparseness; */
- NLSF_mu_Q15 = SKP_SMLAWB( 164, -33554, psEnc->speech_activity_Q8 );
- NLSF_mu_fluc_red_Q16 = SKP_SMLAWB( 13107, -1677696, psEnc->speech_activity_Q8 + psEncCtrl->sparseness_Q8 );
- }
- SKP_assert( NLSF_mu_Q15 >= 0 );
- SKP_assert( NLSF_mu_Q15 <= 164 );
- SKP_assert( NLSF_mu_fluc_red_Q16 >= 0 );
- SKP_assert( NLSF_mu_fluc_red_Q16 <= 13107 );
-
- NLSF_mu_Q15 = SKP_max( NLSF_mu_Q15, 1 );
-
- /* Calculate NLSF weights */
- TIC(NLSF_weights_FIX)
- SKP_Silk_NLSF_VQ_weights_laroia( pNLSFW_Q6, pNLSF_Q15, psEnc->sCmn.predictLPCOrder );
- TOC(NLSF_weights_FIX)
-
- /* Update NLSF weights for interpolated NLSFs */
- doInterpolate = ( psEnc->sCmn.useInterpolatedNLSFs == 1 ) && ( psEncCtrl->sCmn.NLSFInterpCoef_Q2 < ( 1 << 2 ) );
- if( doInterpolate ) {
-
- /* Calculate the interpolated NLSF vector for the first half */
- SKP_Silk_interpolate( pNLSF0_temp_Q15, psEnc->sPred.prev_NLSFq_Q15, pNLSF_Q15,
- psEncCtrl->sCmn.NLSFInterpCoef_Q2, psEnc->sCmn.predictLPCOrder );
-
- /* Calculate first half NLSF weights for the interpolated NLSFs */
- TIC(NLSF_weights_FIX)
- SKP_Silk_NLSF_VQ_weights_laroia( pNLSFW0_temp_Q6, pNLSF0_temp_Q15, psEnc->sCmn.predictLPCOrder );
- TOC(NLSF_weights_FIX)
-
- /* Update NLSF weights with contribution from first half */
- i_sqr_Q15 = SKP_LSHIFT( SKP_SMULBB( psEncCtrl->sCmn.NLSFInterpCoef_Q2, psEncCtrl->sCmn.NLSFInterpCoef_Q2 ), 11 );
- for( i = 0; i < psEnc->sCmn.predictLPCOrder; i++ ) {
- pNLSFW_Q6[ i ] = SKP_SMLAWB( SKP_RSHIFT( pNLSFW_Q6[ i ], 1 ), pNLSFW0_temp_Q6[ i ], i_sqr_Q15 );
- SKP_assert( pNLSFW_Q6[ i ] <= SKP_int16_MAX );
- SKP_assert( pNLSFW_Q6[ i ] >= 1 );
- }
- }
-
- /* Set pointer to the NLSF codebook for the current signal type and LPC order */
- psNLSF_CB = psEnc->sCmn.psNLSF_CB[ psEncCtrl->sCmn.sigtype ];
-
- /* Quantize NLSF parameters given the trained NLSF codebooks */
- TIC(MSVQ_encode_FIX)
- SKP_Silk_NLSF_MSVQ_encode_FIX( psEncCtrl->sCmn.NLSFIndices, pNLSF_Q15, psNLSF_CB,
- psEnc->sPred.prev_NLSFq_Q15, pNLSFW_Q6, NLSF_mu_Q15, NLSF_mu_fluc_red_Q16,
- psEnc->sCmn.NLSF_MSVQ_Survivors, psEnc->sCmn.predictLPCOrder, psEnc->sCmn.first_frame_after_reset );
- TOC(MSVQ_encode_FIX)
-
- /* Convert quantized NLSFs back to LPC coefficients */
- SKP_Silk_NLSF2A_stable( psEncCtrl->PredCoef_Q12[ 1 ], pNLSF_Q15, psEnc->sCmn.predictLPCOrder );
-
- if( doInterpolate ) {
- /* Calculate the interpolated, quantized LSF vector for the first half */
- SKP_Silk_interpolate( pNLSF0_temp_Q15, psEnc->sPred.prev_NLSFq_Q15, pNLSF_Q15,
- psEncCtrl->sCmn.NLSFInterpCoef_Q2, psEnc->sCmn.predictLPCOrder );
-
- /* Convert back to LPC coefficients */
- SKP_Silk_NLSF2A_stable( psEncCtrl->PredCoef_Q12[ 0 ], pNLSF0_temp_Q15, psEnc->sCmn.predictLPCOrder );
-
- } else {
- /* Copy LPC coefficients for first half from second half */
- SKP_memcpy( psEncCtrl->PredCoef_Q12[ 0 ], psEncCtrl->PredCoef_Q12[ 1 ], psEnc->sCmn.predictLPCOrder * sizeof( SKP_int16 ) );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
-
-/* Processing of gains */
-void SKP_Silk_process_gains_FIX(
- SKP_Silk_encoder_state_FIX *psEnc, /* I/O Encoder state_FIX */
- SKP_Silk_encoder_control_FIX *psEncCtrl /* I/O Encoder control_FIX */
-)
-{
- SKP_Silk_shape_state_FIX *psShapeSt = &psEnc->sShape;
- SKP_int k;
- SKP_int32 s_Q16, InvMaxSqrVal_Q16, gain, gain_squared, ResNrg, ResNrgPart, quant_offset_Q10;
-
- /* Gain reduction when LTP coding gain is high */
- if( psEncCtrl->sCmn.sigtype == SIG_TYPE_VOICED ) {
- /*s = -0.5f * SKP_sigmoid( 0.25f * ( psEncCtrl->LTPredCodGain - 12.0f ) ); */
- s_Q16 = -SKP_Silk_sigm_Q15( SKP_RSHIFT_ROUND( psEncCtrl->LTPredCodGain_Q7 - SKP_FIX_CONST( 12.0, 7 ), 4 ) );
- for( k = 0; k < NB_SUBFR; k++ ) {
- psEncCtrl->Gains_Q16[ k ] = SKP_SMLAWB( psEncCtrl->Gains_Q16[ k ], psEncCtrl->Gains_Q16[ k ], s_Q16 );
- }
- }
-
- /* Limit the quantized signal */
- InvMaxSqrVal_Q16 = SKP_DIV32_16( SKP_Silk_log2lin(
- SKP_SMULWB( SKP_FIX_CONST( 70.0, 7 ) - psEncCtrl->current_SNR_dB_Q7, SKP_FIX_CONST( 0.33, 16 ) ) ), psEnc->sCmn.subfr_length );
-
- for( k = 0; k < NB_SUBFR; k++ ) {
- /* Soft limit on ratio residual energy and squared gains */
- ResNrg = psEncCtrl->ResNrg[ k ];
- ResNrgPart = SKP_SMULWW( ResNrg, InvMaxSqrVal_Q16 );
- if( psEncCtrl->ResNrgQ[ k ] > 0 ) {
- if( psEncCtrl->ResNrgQ[ k ] < 32 ) {
- ResNrgPart = SKP_RSHIFT_ROUND( ResNrgPart, psEncCtrl->ResNrgQ[ k ] );
- } else {
- ResNrgPart = 0;
- }
- } else if( psEncCtrl->ResNrgQ[k] != 0 ) {
- if( ResNrgPart > SKP_RSHIFT( SKP_int32_MAX, -psEncCtrl->ResNrgQ[ k ] ) ) {
- ResNrgPart = SKP_int32_MAX;
- } else {
- ResNrgPart = SKP_LSHIFT( ResNrgPart, -psEncCtrl->ResNrgQ[ k ] );
- }
- }
- gain = psEncCtrl->Gains_Q16[ k ];
- gain_squared = SKP_ADD_SAT32( ResNrgPart, SKP_SMMUL( gain, gain ) );
- if( gain_squared < SKP_int16_MAX ) {
- /* recalculate with higher precision */
- gain_squared = SKP_SMLAWW( SKP_LSHIFT( ResNrgPart, 16 ), gain, gain );
- SKP_assert( gain_squared > 0 );
- gain = SKP_Silk_SQRT_APPROX( gain_squared ); /* Q8 */
- psEncCtrl->Gains_Q16[ k ] = SKP_LSHIFT_SAT32( gain, 8 ); /* Q16 */
- } else {
- gain = SKP_Silk_SQRT_APPROX( gain_squared ); /* Q0 */
- psEncCtrl->Gains_Q16[ k ] = SKP_LSHIFT_SAT32( gain, 16 ); /* Q16 */
- }
- }
-
- /* Noise shaping quantization */
- SKP_Silk_gains_quant( psEncCtrl->sCmn.GainsIndices, psEncCtrl->Gains_Q16,
- &psShapeSt->LastGainIndex, psEnc->sCmn.nFramesInPayloadBuf );
- /* Set quantizer offset for voiced signals. Larger offset when LTP coding gain is low or tilt is high (ie low-pass) */
- if( psEncCtrl->sCmn.sigtype == SIG_TYPE_VOICED ) {
- if( psEncCtrl->LTPredCodGain_Q7 + SKP_RSHIFT( psEncCtrl->input_tilt_Q15, 8 ) > SKP_FIX_CONST( 1.0, 7 ) ) {
- psEncCtrl->sCmn.QuantOffsetType = 0;
- } else {
- psEncCtrl->sCmn.QuantOffsetType = 1;
- }
- }
-
- /* Quantizer boundary adjustment */
- quant_offset_Q10 = SKP_Silk_Quantization_Offsets_Q10[ psEncCtrl->sCmn.sigtype ][ psEncCtrl->sCmn.QuantOffsetType ];
- psEncCtrl->Lambda_Q10 = SKP_FIX_CONST( LAMBDA_OFFSET, 10 )
- + SKP_SMULBB( SKP_FIX_CONST( LAMBDA_DELAYED_DECISIONS, 10 ), psEnc->sCmn.nStatesDelayedDecision )
- + SKP_SMULWB( SKP_FIX_CONST( LAMBDA_SPEECH_ACT, 18 ), psEnc->speech_activity_Q8 )
- + SKP_SMULWB( SKP_FIX_CONST( LAMBDA_INPUT_QUALITY, 12 ), psEncCtrl->input_quality_Q14 )
- + SKP_SMULWB( SKP_FIX_CONST( LAMBDA_CODING_QUALITY, 12 ), psEncCtrl->coding_quality_Q14 )
- + SKP_SMULWB( SKP_FIX_CONST( LAMBDA_QUANT_OFFSET, 16 ), quant_offset_Q10 );
-
- SKP_assert( psEncCtrl->Lambda_Q10 > 0 );
- SKP_assert( psEncCtrl->Lambda_Q10 < SKP_FIX_CONST( 2, 10 ) );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-
-void SKP_Silk_quant_LTP_gains_FIX(
- SKP_int16 B_Q14[], /* I/O (un)quantized LTP gains */
- SKP_int cbk_index[], /* O Codebook Index */
- SKP_int *periodicity_index, /* O Periodicity Index */
- const SKP_int32 W_Q18[], /* I Error Weights in Q18 */
- SKP_int mu_Q8, /* I Mu value (R/D tradeoff) */
- SKP_int lowComplexity /* I Flag for low complexity */
-)
-{
- SKP_int j, k, temp_idx[ NB_SUBFR ], cbk_size;
- const SKP_uint16 *cdf_ptr;
- const SKP_int16 *cl_ptr;
- const SKP_int16 *cbk_ptr_Q14;
- const SKP_int16 *b_Q14_ptr;
- const SKP_int32 *W_Q18_ptr;
- SKP_int32 rate_dist_subfr, rate_dist, min_rate_dist;
-
-
-
- /***************************************************/
- /* iterate over different codebooks with different */
- /* rates/distortions, and choose best */
- /***************************************************/
- min_rate_dist = SKP_int32_MAX;
- for( k = 0; k < 3; k++ ) {
- cdf_ptr = SKP_Silk_LTP_gain_CDF_ptrs[ k ];
- cl_ptr = SKP_Silk_LTP_gain_BITS_Q6_ptrs[ k ];
- cbk_ptr_Q14 = SKP_Silk_LTP_vq_ptrs_Q14[ k ];
- cbk_size = SKP_Silk_LTP_vq_sizes[ k ];
-
- /* Setup pointer to first subframe */
- W_Q18_ptr = W_Q18;
- b_Q14_ptr = B_Q14;
-
- rate_dist = 0;
- for( j = 0; j < NB_SUBFR; j++ ) {
-
- SKP_Silk_VQ_WMat_EC_FIX(
- &temp_idx[ j ], /* O index of best codebook vector */
- &rate_dist_subfr, /* O best weighted quantization error + mu * rate */
- b_Q14_ptr, /* I input vector to be quantized */
- W_Q18_ptr, /* I weighting matrix */
- cbk_ptr_Q14, /* I codebook */
- cl_ptr, /* I code length for each codebook vector */
- mu_Q8, /* I tradeoff between weighted error and rate */
- cbk_size /* I number of vectors in codebook */
- );
-
- rate_dist = SKP_ADD_POS_SAT32( rate_dist, rate_dist_subfr );
-
- b_Q14_ptr += LTP_ORDER;
- W_Q18_ptr += LTP_ORDER * LTP_ORDER;
- }
-
- /* Avoid never finding a codebook */
- rate_dist = SKP_min( SKP_int32_MAX - 1, rate_dist );
-
- if( rate_dist < min_rate_dist ) {
- min_rate_dist = rate_dist;
- SKP_memcpy( cbk_index, temp_idx, NB_SUBFR * sizeof( SKP_int ) );
- *periodicity_index = k;
- }
-
- /* Break early in low-complexity mode if rate distortion is below threshold */
- if( lowComplexity && ( rate_dist < SKP_Silk_LTP_gain_middle_avg_RD_Q14 ) ) {
- break;
- }
- }
-
- cbk_ptr_Q14 = SKP_Silk_LTP_vq_ptrs_Q14[ *periodicity_index ];
- for( j = 0; j < NB_SUBFR; j++ ) {
- for( k = 0; k < LTP_ORDER; k++ ) {
- B_Q14[ j * LTP_ORDER + k ] = cbk_ptr_Q14[ SKP_MLA( k, cbk_index[ j ], LTP_ORDER ) ];
- }
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-/* Range encoder for one symbol */
-void SKP_Silk_range_encoder(
- SKP_Silk_range_coder_state *psRC, /* I/O compressor data structure */
- const SKP_int data, /* I uncompressed data */
- const SKP_uint16 prob[] /* I cumulative density functions */
-)
-{
- SKP_uint32 low_Q16, high_Q16;
- SKP_uint32 base_tmp, range_Q32;
-
- /* Copy structure data */
- SKP_uint32 base_Q32 = psRC->base_Q32;
- SKP_uint32 range_Q16 = psRC->range_Q16;
- SKP_int32 bufferIx = psRC->bufferIx;
- SKP_uint8 *buffer = psRC->buffer;
-
- if( psRC->error ) {
- return;
- }
-
- /* Update interval */
- low_Q16 = prob[ data ];
- high_Q16 = prob[ data + 1 ];
- base_tmp = base_Q32; /* save current base, to test for carry */
- base_Q32 += SKP_MUL_uint( range_Q16, low_Q16 );
- range_Q32 = SKP_MUL_uint( range_Q16, high_Q16 - low_Q16 );
-
- /* Check for carry */
- if( base_Q32 < base_tmp ) {
- /* Propagate carry in buffer */
- SKP_int bufferIx_tmp = bufferIx;
- while( ( ++buffer[ --bufferIx_tmp ] ) == 0 );
- }
-
- /* Check normalization */
- if( range_Q32 & 0xFF000000 ) {
- /* No normalization */
- range_Q16 = SKP_RSHIFT_uint( range_Q32, 16 );
- } else {
- if( range_Q32 & 0xFFFF0000 ) {
- /* Normalization of 8 bits shift */
- range_Q16 = SKP_RSHIFT_uint( range_Q32, 8 );
- } else {
- /* Normalization of 16 bits shift */
- range_Q16 = range_Q32;
- /* Make sure not to write beyond buffer */
- if( bufferIx >= psRC->bufferLength ) {
- psRC->error = RANGE_CODER_WRITE_BEYOND_BUFFER;
- return;
- }
- /* Write one byte to buffer */
- buffer[ bufferIx++ ] = (SKP_uint8)( SKP_RSHIFT_uint( base_Q32, 24 ) );
- base_Q32 = SKP_LSHIFT_ovflw( base_Q32, 8 );
- }
- /* Make sure not to write beyond buffer */
- if( bufferIx >= psRC->bufferLength ) {
- psRC->error = RANGE_CODER_WRITE_BEYOND_BUFFER;
- return;
- }
- /* Write one byte to buffer */
- buffer[ bufferIx++ ] = (SKP_uint8)( SKP_RSHIFT_uint( base_Q32, 24 ) );
- base_Q32 = SKP_LSHIFT_ovflw( base_Q32, 8 );
- }
-
- /* Copy structure data back */
- psRC->base_Q32 = base_Q32;
- psRC->range_Q16 = range_Q16;
- psRC->bufferIx = bufferIx;
-}
-
-/* Range encoder for multiple symbols */
-void SKP_Silk_range_encoder_multi(
- SKP_Silk_range_coder_state *psRC, /* I/O compressor data structure */
- const SKP_int data[], /* I uncompressed data [nSymbols] */
- const SKP_uint16 * const prob[], /* I cumulative density functions */
- const SKP_int nSymbols /* I number of data symbols */
-)
-{
- SKP_int k;
- for( k = 0; k < nSymbols; k++ ) {
- SKP_Silk_range_encoder( psRC, data[ k ], prob[ k ] );
- }
-}
-
-/* Range decoder for one symbol */
-void SKP_Silk_range_decoder(
- SKP_int data[], /* O uncompressed data */
- SKP_Silk_range_coder_state *psRC, /* I/O compressor data structure */
- const SKP_uint16 prob[], /* I cumulative density function */
- SKP_int probIx /* I initial (middle) entry of cdf */
-)
-{
- SKP_uint32 low_Q16, high_Q16;
- SKP_uint32 base_tmp, range_Q32;
-
- /* Copy structure data */
- SKP_uint32 base_Q32 = psRC->base_Q32;
- SKP_uint32 range_Q16 = psRC->range_Q16;
- SKP_int32 bufferIx = psRC->bufferIx;
- SKP_uint8 *buffer = &psRC->buffer[ 4 ];
-
- if( psRC->error ) {
- /* Set output to zero */
- *data = 0;
- return;
- }
-
- high_Q16 = prob[ probIx ];
- base_tmp = SKP_MUL_uint( range_Q16, high_Q16 );
- if( base_tmp > base_Q32 ) {
- while( 1 ) {
- low_Q16 = prob[ --probIx ];
- base_tmp = SKP_MUL_uint( range_Q16, low_Q16 );
- if( base_tmp <= base_Q32 ) {
- break;
- }
- high_Q16 = low_Q16;
- /* Test for out of range */
- if( high_Q16 == 0 ) {
- psRC->error = RANGE_CODER_CDF_OUT_OF_RANGE;
- /* Set output to zero */
- *data = 0;
- return;
- }
- }
- } else {
- while( 1 ) {
- low_Q16 = high_Q16;
- high_Q16 = prob[ ++probIx ];
- base_tmp = SKP_MUL_uint( range_Q16, high_Q16 );
- if( base_tmp > base_Q32 ) {
- probIx--;
- break;
- }
- /* Test for out of range */
- if( high_Q16 == 0xFFFF ) {
- psRC->error = RANGE_CODER_CDF_OUT_OF_RANGE;
- /* Set output to zero */
- *data = 0;
- return;
- }
- }
- }
- *data = probIx;
- base_Q32 -= SKP_MUL_uint( range_Q16, low_Q16 );
- range_Q32 = SKP_MUL_uint( range_Q16, high_Q16 - low_Q16 );
-
- /* Check normalization */
- if( range_Q32 & 0xFF000000 ) {
- /* No normalization */
- range_Q16 = SKP_RSHIFT_uint( range_Q32, 16 );
- } else {
- if( range_Q32 & 0xFFFF0000 ) {
- /* Normalization of 8 bits shift */
- range_Q16 = SKP_RSHIFT_uint( range_Q32, 8 );
- /* Check for errors */
- if( SKP_RSHIFT_uint( base_Q32, 24 ) ) {
- psRC->error = RANGE_CODER_NORMALIZATION_FAILED;
- /* Set output to zero */
- *data = 0;
- return;
- }
- } else {
- /* Normalization of 16 bits shift */
- range_Q16 = range_Q32;
- /* Check for errors */
- if( SKP_RSHIFT( base_Q32, 16 ) ) {
- psRC->error = RANGE_CODER_NORMALIZATION_FAILED;
- /* Set output to zero */
- *data = 0;
- return;
- }
- /* Update base */
- base_Q32 = SKP_LSHIFT_uint( base_Q32, 8 );
- /* Make sure not to read beyond buffer */
- if( bufferIx < psRC->bufferLength ) {
- /* Read one byte from buffer */
- base_Q32 |= (SKP_uint32)buffer[ bufferIx++ ];
- }
- }
- /* Update base */
- base_Q32 = SKP_LSHIFT_uint( base_Q32, 8 );
- /* Make sure not to read beyond buffer */
- if( bufferIx < psRC->bufferLength ) {
- /* Read one byte from buffer */
- base_Q32 |= (SKP_uint32)buffer[ bufferIx++ ];
- }
- }
-
- /* Check for zero interval length */
- if( range_Q16 == 0 ) {
- psRC->error = RANGE_CODER_ZERO_INTERVAL_WIDTH;
- /* Set output to zero */
- *data = 0;
- return;
- }
-
- /* Copy structure data back */
- psRC->base_Q32 = base_Q32;
- psRC->range_Q16 = range_Q16;
- psRC->bufferIx = bufferIx;
-}
-
-/* Range decoder for multiple symbols */
-void SKP_Silk_range_decoder_multi(
- SKP_int data[], /* O uncompressed data [nSymbols] */
- SKP_Silk_range_coder_state *psRC, /* I/O compressor data structure */
- const SKP_uint16 * const prob[], /* I cumulative density functions */
- const SKP_int probStartIx[], /* I initial (middle) entries of cdfs [nSymbols] */
- const SKP_int nSymbols /* I number of data symbols */
-)
-{
- SKP_int k;
- for( k = 0; k < nSymbols; k++ ) {
- SKP_Silk_range_decoder( &data[ k ], psRC, prob[ k ], probStartIx[ k ] );
- }
-}
-
-/* Initialize range encoder */
-void SKP_Silk_range_enc_init(
- SKP_Silk_range_coder_state *psRC /* O compressor data structure */
-)
-{
- /* Initialize structure */
- psRC->bufferLength = MAX_ARITHM_BYTES;
- psRC->range_Q16 = 0x0000FFFF;
- psRC->bufferIx = 0;
- psRC->base_Q32 = 0;
- psRC->error = 0;
-}
-
-/* Initialize range decoder */
-void SKP_Silk_range_dec_init(
- SKP_Silk_range_coder_state *psRC, /* O compressor data structure */
- const SKP_uint8 buffer[], /* I buffer for compressed data [bufferLength] */
- const SKP_int32 bufferLength /* I buffer length (in bytes) */
-)
-{
- /* check input */
- if( bufferLength > MAX_ARITHM_BYTES ) {
- psRC->error = RANGE_CODER_DEC_PAYLOAD_TOO_LONG;
- return;
- }
- /* Initialize structure */
- /* Copy to internal buffer */
- SKP_memcpy( psRC->buffer, buffer, bufferLength * sizeof( SKP_uint8 ) );
- psRC->bufferLength = bufferLength;
- psRC->bufferIx = 0;
- psRC->base_Q32 =
- SKP_LSHIFT_uint( (SKP_uint32)buffer[ 0 ], 24 ) |
- SKP_LSHIFT_uint( (SKP_uint32)buffer[ 1 ], 16 ) |
- SKP_LSHIFT_uint( (SKP_uint32)buffer[ 2 ], 8 ) |
- (SKP_uint32)buffer[ 3 ];
- psRC->range_Q16 = 0x0000FFFF;
- psRC->error = 0;
-}
-
-/* Determine length of bitstream */
-SKP_int SKP_Silk_range_coder_get_length( /* O returns number of BITS in stream */
- const SKP_Silk_range_coder_state *psRC, /* I compressed data structure */
- SKP_int *nBytes /* O number of BYTES in stream */
-)
-{
- SKP_int nBits;
-
- /* Number of bits in stream */
- nBits = SKP_LSHIFT( psRC->bufferIx, 3 ) + SKP_Silk_CLZ32( psRC->range_Q16 - 1 ) - 14;
-
- *nBytes = SKP_RSHIFT( nBits + 7, 3 );
-
- /* Return number of bits in bitstream */
- return nBits;
-}
-
-/* Write shortest uniquely decodable stream to buffer, and determine its length */
-void SKP_Silk_range_enc_wrap_up(
- SKP_Silk_range_coder_state *psRC /* I/O compressed data structure */
-)
-{
- SKP_int bufferIx_tmp, bits_to_store, bits_in_stream, nBytes, mask;
- SKP_uint32 base_Q24;
-
- /* Lower limit of interval, shifted 8 bits to the right */
- base_Q24 = SKP_RSHIFT_uint( psRC->base_Q32, 8 );
-
- bits_in_stream = SKP_Silk_range_coder_get_length( psRC, &nBytes );
-
- /* Number of additional bits (1..9) required to be stored to stream */
- bits_to_store = bits_in_stream - SKP_LSHIFT( psRC->bufferIx, 3 );
- /* Round up to required resolution */
- base_Q24 += SKP_RSHIFT_uint( 0x00800000, bits_to_store - 1 );
- base_Q24 &= SKP_LSHIFT_ovflw( 0xFFFFFFFF, 24 - bits_to_store );
-
- /* Check for carry */
- if( base_Q24 & 0x01000000 ) {
- /* Propagate carry in buffer */
- bufferIx_tmp = psRC->bufferIx;
- while( ( ++( psRC->buffer[ --bufferIx_tmp ] ) ) == 0 );
- }
-
- /* Store to stream, making sure not to write beyond buffer */
- if( psRC->bufferIx < psRC->bufferLength ) {
- psRC->buffer[ psRC->bufferIx++ ] = (SKP_uint8)SKP_RSHIFT_uint( base_Q24, 16 );
- if( bits_to_store > 8 ) {
- if( psRC->bufferIx < psRC->bufferLength ) {
- psRC->buffer[ psRC->bufferIx++ ] = (SKP_uint8)SKP_RSHIFT_uint( base_Q24, 8 );
- }
- }
- }
-
- /* Fill up any remaining bits in the last byte with 1s */
- if( bits_in_stream & 7 ) {
- mask = SKP_RSHIFT( 0xFF, bits_in_stream & 7 );
- if( nBytes - 1 < psRC->bufferLength ) {
- psRC->buffer[ nBytes - 1 ] |= mask;
- }
- }
-}
-
-/* Check that any remaining bits in the last byte are set to 1 */
-void SKP_Silk_range_coder_check_after_decoding(
- SKP_Silk_range_coder_state *psRC /* I/O compressed data structure */
-)
-{
- SKP_int bits_in_stream, nBytes, mask;
-
- bits_in_stream = SKP_Silk_range_coder_get_length( psRC, &nBytes );
-
- /* Make sure not to read beyond buffer */
- if( nBytes - 1 >= psRC->bufferLength ) {
- psRC->error = RANGE_CODER_DECODER_CHECK_FAILED;
- return;
- }
-
- /* Test any remaining bits in last byte */
- if( bits_in_stream & 7 ) {
- mask = SKP_RSHIFT( 0xFF, bits_in_stream & 7 );
- if( ( psRC->buffer[ nBytes - 1 ] & mask ) != mask ) {
- psRC->error = RANGE_CODER_DECODER_CHECK_FAILED;
- return;
- }
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-
-/* Add noise to matrix diagonal */
-void SKP_Silk_regularize_correlations_FIX(
- SKP_int32 *XX, /* I/O Correlation matrices */
- SKP_int32 *xx, /* I/O Correlation values */
- SKP_int32 noise, /* I Noise to add */
- SKP_int D /* I Dimension of XX */
-)
-{
- SKP_int i;
- for( i = 0; i < D; i++ ) {
- matrix_ptr( &XX[ 0 ], i, i, D ) = SKP_ADD32( matrix_ptr( &XX[ 0 ], i, i, D ), noise );
- }
- xx[ 0 ] += noise;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * File Name: SKP_Silk_resampler.c *
- * *
- * Description: Interface to collection of resamplers *
- * *
- * Copyright 2010 (c), Skype Limited *
- * All rights reserved. *
- * */
-
-/* Matrix of resampling methods used:
- * Fs_out (kHz)
- * 8 12 16 24 32 44.1 48
- *
- * 8 C UF U UF UF UF UF
- * 12 AF C UF U UF UF UF
- * 16 D AF C UF U UF UF
- * Fs_in (kHz) 24 AIF D AF C UF UF U
- * 32 UF AF D AF C UF UF
- * 44.1 AMI AMI AMI AMI AMI C UF
- * 48 DAF DAF AF D AF UF C
- *
- * default method: UF
- *
- * C -> Copy (no resampling)
- * D -> Allpass-based 2x downsampling
- * U -> Allpass-based 2x upsampling
- * DAF -> Allpass-based 2x downsampling followed by AR2 filter followed by FIR interpolation
- * UF -> Allpass-based 2x upsampling followed by FIR interpolation
- * AMI -> ARMA4 filter followed by FIR interpolation
- * AF -> AR2 filter followed by FIR interpolation
- *
- * Input signals sampled above 48 kHz are first downsampled to at most 48 kHz.
- * Output signals sampled above 48 kHz are upsampled from at most 48 kHz.
- */
-
-#include "SKP_Silk_resampler_private.h"
-
-/* Greatest common divisor */
-static SKP_int32 gcd(
- SKP_int32 a,
- SKP_int32 b
-)
-{
- SKP_int32 tmp;
- while( b > 0 ) {
- tmp = a - b * SKP_DIV32( a, b );
- a = b;
- b = tmp;
- }
- return a;
-}
-
-/* Initialize/reset the resampler state for a given pair of input/output sampling rates */
-SKP_int SKP_Silk_resampler_init(
- SKP_Silk_resampler_state_struct *S, /* I/O: Resampler state */
- SKP_int32 Fs_Hz_in, /* I: Input sampling rate (Hz) */
- SKP_int32 Fs_Hz_out /* I: Output sampling rate (Hz) */
-)
-{
- SKP_int32 cycleLen, cyclesPerBatch, up2 = 0, down2 = 0;
-
- /* Clear state */
- SKP_memset( S, 0, sizeof( SKP_Silk_resampler_state_struct ) );
-
- /* Input checking */
-#if RESAMPLER_SUPPORT_ABOVE_48KHZ
- if( Fs_Hz_in < 8000 || Fs_Hz_in > 192000 || Fs_Hz_out < 8000 || Fs_Hz_out > 192000 ) {
-#else
- if( Fs_Hz_in < 8000 || Fs_Hz_in > 48000 || Fs_Hz_out < 8000 || Fs_Hz_out > 48000 ) {
-#endif
- SKP_assert( 0 );
- return -1;
- }
-
-#if RESAMPLER_SUPPORT_ABOVE_48KHZ
- /* Determine pre downsampling and post upsampling */
- if( Fs_Hz_in > 96000 ) {
- S->nPreDownsamplers = 2;
- S->down_pre_function = SKP_Silk_resampler_private_down4;
- } else if( Fs_Hz_in > 48000 ) {
- S->nPreDownsamplers = 1;
- S->down_pre_function = SKP_Silk_resampler_down2;
- } else {
- S->nPreDownsamplers = 0;
- S->down_pre_function = NULL;
- }
-
- if( Fs_Hz_out > 96000 ) {
- S->nPostUpsamplers = 2;
- S->up_post_function = SKP_Silk_resampler_private_up4;
- } else if( Fs_Hz_out > 48000 ) {
- S->nPostUpsamplers = 1;
- S->up_post_function = SKP_Silk_resampler_up2;
- } else {
- S->nPostUpsamplers = 0;
- S->up_post_function = NULL;
- }
-
- if( S->nPreDownsamplers + S->nPostUpsamplers > 0 ) {
- /* Ratio of output/input samples */
- S->ratio_Q16 = SKP_LSHIFT32( SKP_DIV32( SKP_LSHIFT32( Fs_Hz_out, 13 ), Fs_Hz_in ), 3 );
- /* Make sure the ratio is rounded up */
- while( SKP_SMULWW( S->ratio_Q16, Fs_Hz_in ) < Fs_Hz_out ) S->ratio_Q16++;
-
- /* Batch size is 10 ms */
- S->batchSizePrePost = SKP_DIV32_16( Fs_Hz_in, 100 );
-
- /* Convert sampling rate to those after pre-downsampling and before post-upsampling */
- Fs_Hz_in = SKP_RSHIFT( Fs_Hz_in, S->nPreDownsamplers );
- Fs_Hz_out = SKP_RSHIFT( Fs_Hz_out, S->nPostUpsamplers );
- }
-#endif
-
- /* Number of samples processed per batch */
- /* First, try 10 ms frames */
- S->batchSize = SKP_DIV32_16( Fs_Hz_in, 100 );
- if( ( SKP_MUL( S->batchSize, 100 ) != Fs_Hz_in ) || ( Fs_Hz_in % 100 != 0 ) ) {
- /* No integer number of input or output samples with 10 ms frames, use greatest common divisor */
- cycleLen = SKP_DIV32( Fs_Hz_in, gcd( Fs_Hz_in, Fs_Hz_out ) );
- cyclesPerBatch = SKP_DIV32( RESAMPLER_MAX_BATCH_SIZE_IN, cycleLen );
- if( cyclesPerBatch == 0 ) {
- /* cycleLen too big, let's just use the maximum batch size. Some distortion will result. */
- S->batchSize = RESAMPLER_MAX_BATCH_SIZE_IN;
- SKP_assert( 0 );
- } else {
- S->batchSize = SKP_MUL( cyclesPerBatch, cycleLen );
- }
- }
-
-
- /* Find resampler with the right sampling ratio */
- if( Fs_Hz_out > Fs_Hz_in ) {
- /* Upsample */
- if( Fs_Hz_out == SKP_MUL( Fs_Hz_in, 2 ) ) { /* Fs_out : Fs_in = 2 : 1 */
- /* Special case: directly use 2x upsampler */
- S->resampler_function = SKP_Silk_resampler_private_up2_HQ_wrapper;
- } else {
- /* Default resampler */
- S->resampler_function = SKP_Silk_resampler_private_IIR_FIR;
- up2 = 1;
- if( Fs_Hz_in > 24000 ) {
- /* Low-quality all-pass upsampler */
- S->up2_function = SKP_Silk_resampler_up2;
- } else {
- /* High-quality all-pass upsampler */
- S->up2_function = SKP_Silk_resampler_private_up2_HQ;
- }
- }
- } else if ( Fs_Hz_out < Fs_Hz_in ) {
- /* Downsample */
- if( SKP_MUL( Fs_Hz_out, 4 ) == SKP_MUL( Fs_Hz_in, 3 ) ) { /* Fs_out : Fs_in = 3 : 4 */
- S->FIR_Fracs = 3;
- S->Coefs = SKP_Silk_Resampler_3_4_COEFS;
- S->resampler_function = SKP_Silk_resampler_private_down_FIR;
- } else if( SKP_MUL( Fs_Hz_out, 3 ) == SKP_MUL( Fs_Hz_in, 2 ) ) { /* Fs_out : Fs_in = 2 : 3 */
- S->FIR_Fracs = 2;
- S->Coefs = SKP_Silk_Resampler_2_3_COEFS;
- S->resampler_function = SKP_Silk_resampler_private_down_FIR;
- } else if( SKP_MUL( Fs_Hz_out, 2 ) == Fs_Hz_in ) { /* Fs_out : Fs_in = 1 : 2 */
- S->FIR_Fracs = 1;
- S->Coefs = SKP_Silk_Resampler_1_2_COEFS;
- S->resampler_function = SKP_Silk_resampler_private_down_FIR;
- } else if( SKP_MUL( Fs_Hz_out, 8 ) == SKP_MUL( Fs_Hz_in, 3 ) ) { /* Fs_out : Fs_in = 3 : 8 */
- S->FIR_Fracs = 3;
- S->Coefs = SKP_Silk_Resampler_3_8_COEFS;
- S->resampler_function = SKP_Silk_resampler_private_down_FIR;
- } else if( SKP_MUL( Fs_Hz_out, 3 ) == Fs_Hz_in ) { /* Fs_out : Fs_in = 1 : 3 */
- S->FIR_Fracs = 1;
- S->Coefs = SKP_Silk_Resampler_1_3_COEFS;
- S->resampler_function = SKP_Silk_resampler_private_down_FIR;
- } else if( SKP_MUL( Fs_Hz_out, 4 ) == Fs_Hz_in ) { /* Fs_out : Fs_in = 1 : 4 */
- S->FIR_Fracs = 1;
- down2 = 1;
- S->Coefs = SKP_Silk_Resampler_1_2_COEFS;
- S->resampler_function = SKP_Silk_resampler_private_down_FIR;
- } else if( SKP_MUL( Fs_Hz_out, 6 ) == Fs_Hz_in ) { /* Fs_out : Fs_in = 1 : 6 */
- S->FIR_Fracs = 1;
- down2 = 1;
- S->Coefs = SKP_Silk_Resampler_1_3_COEFS;
- S->resampler_function = SKP_Silk_resampler_private_down_FIR;
- } else if( SKP_MUL( Fs_Hz_out, 441 ) == SKP_MUL( Fs_Hz_in, 80 ) ) { /* Fs_out : Fs_in = 80 : 441 */
- S->Coefs = SKP_Silk_Resampler_80_441_ARMA4_COEFS;
- S->resampler_function = SKP_Silk_resampler_private_IIR_FIR;
- } else if( SKP_MUL( Fs_Hz_out, 441 ) == SKP_MUL( Fs_Hz_in, 120 ) ) { /* Fs_out : Fs_in = 120 : 441 */
- S->Coefs = SKP_Silk_Resampler_120_441_ARMA4_COEFS;
- S->resampler_function = SKP_Silk_resampler_private_IIR_FIR;
- } else if( SKP_MUL( Fs_Hz_out, 441 ) == SKP_MUL( Fs_Hz_in, 160 ) ) { /* Fs_out : Fs_in = 160 : 441 */
- S->Coefs = SKP_Silk_Resampler_160_441_ARMA4_COEFS;
- S->resampler_function = SKP_Silk_resampler_private_IIR_FIR;
- } else if( SKP_MUL( Fs_Hz_out, 441 ) == SKP_MUL( Fs_Hz_in, 240 ) ) { /* Fs_out : Fs_in = 240 : 441 */
- S->Coefs = SKP_Silk_Resampler_240_441_ARMA4_COEFS;
- S->resampler_function = SKP_Silk_resampler_private_IIR_FIR;
- } else if( SKP_MUL( Fs_Hz_out, 441 ) == SKP_MUL( Fs_Hz_in, 320 ) ) { /* Fs_out : Fs_in = 320 : 441 */
- S->Coefs = SKP_Silk_Resampler_320_441_ARMA4_COEFS;
- S->resampler_function = SKP_Silk_resampler_private_IIR_FIR;
- } else {
- /* Default resampler */
- S->resampler_function = SKP_Silk_resampler_private_IIR_FIR;
- up2 = 1;
- if( Fs_Hz_in > 24000 ) {
- /* Low-quality all-pass upsampler */
- S->up2_function = SKP_Silk_resampler_up2;
- } else {
- /* High-quality all-pass upsampler */
- S->up2_function = SKP_Silk_resampler_private_up2_HQ;
- }
- }
- } else {
- /* Input and output sampling rates are equal: copy */
- S->resampler_function = SKP_Silk_resampler_private_copy;
- }
-
- S->input2x = up2 | down2;
-
- /* Ratio of input/output samples */
- S->invRatio_Q16 = SKP_LSHIFT32( SKP_DIV32( SKP_LSHIFT32( Fs_Hz_in, 14 + up2 - down2 ), Fs_Hz_out ), 2 );
- /* Make sure the ratio is rounded up */
- while( SKP_SMULWW( S->invRatio_Q16, SKP_LSHIFT32( Fs_Hz_out, down2 ) ) < SKP_LSHIFT32( Fs_Hz_in, up2 ) ) {
- S->invRatio_Q16++;
- }
-
- S->magic_number = 123456789;
-
- return 0;
-}
-
-/* Clear the states of all resampling filters, without resetting sampling rate ratio */
-SKP_int SKP_Silk_resampler_clear(
- SKP_Silk_resampler_state_struct *S /* I/O: Resampler state */
-)
-{
- /* Clear state */
- SKP_memset( S->sDown2, 0, sizeof( S->sDown2 ) );
- SKP_memset( S->sIIR, 0, sizeof( S->sIIR ) );
- SKP_memset( S->sFIR, 0, sizeof( S->sFIR ) );
-#if RESAMPLER_SUPPORT_ABOVE_48KHZ
- SKP_memset( S->sDownPre, 0, sizeof( S->sDownPre ) );
- SKP_memset( S->sUpPost, 0, sizeof( S->sUpPost ) );
-#endif
- return 0;
-}
-
-/* Resampler: convert from one sampling rate to another */
-SKP_int SKP_Silk_resampler(
- SKP_Silk_resampler_state_struct *S, /* I/O: Resampler state */
- SKP_int16 out[], /* O: Output signal */
- const SKP_int16 in[], /* I: Input signal */
- SKP_int32 inLen /* I: Number of input samples */
-)
-{
- /* Verify that state was initialized and has not been corrupted */
- if( S->magic_number != 123456789 ) {
- SKP_assert( 0 );
- return -1;
- }
-
-#if RESAMPLER_SUPPORT_ABOVE_48KHZ
- if( S->nPreDownsamplers + S->nPostUpsamplers > 0 ) {
- /* The input and/or output sampling rate is above 48000 Hz */
- SKP_int32 nSamplesIn, nSamplesOut;
- SKP_int16 in_buf[ 480 ], out_buf[ 480 ];
-
- while( inLen > 0 ) {
- /* Number of input and output samples to process */
- nSamplesIn = SKP_min( inLen, S->batchSizePrePost );
- nSamplesOut = SKP_SMULWB( S->ratio_Q16, nSamplesIn );
-
- SKP_assert( SKP_RSHIFT32( nSamplesIn, S->nPreDownsamplers ) <= 480 );
- SKP_assert( SKP_RSHIFT32( nSamplesOut, S->nPostUpsamplers ) <= 480 );
-
- if( S->nPreDownsamplers > 0 ) {
- S->down_pre_function( S->sDownPre, in_buf, in, nSamplesIn );
- if( S->nPostUpsamplers > 0 ) {
- S->resampler_function( S, out_buf, in_buf, SKP_RSHIFT32( nSamplesIn, S->nPreDownsamplers ) );
- S->up_post_function( S->sUpPost, out, out_buf, SKP_RSHIFT32( nSamplesOut, S->nPostUpsamplers ) );
- } else {
- S->resampler_function( S, out, in_buf, SKP_RSHIFT32( nSamplesIn, S->nPreDownsamplers ) );
- }
- } else {
- S->resampler_function( S, out_buf, in, SKP_RSHIFT32( nSamplesIn, S->nPreDownsamplers ) );
- S->up_post_function( S->sUpPost, out, out_buf, SKP_RSHIFT32( nSamplesOut, S->nPostUpsamplers ) );
- }
-
- in += nSamplesIn;
- out += nSamplesOut;
- inLen -= nSamplesIn;
- }
- } else
-#endif
- {
- /* Input and output sampling rate are at most 48000 Hz */
- S->resampler_function( S, out, in, inLen );
- }
-
- return 0;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_resampler_down2.c *
- * *
- * Downsample by a factor 2, mediocre quality *
- * *
- * Copyright 2010 (c), Skype Limited *
- * */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_rom.h"
-
-/* Downsample by a factor 2, mediocre quality */
-void SKP_Silk_resampler_down2(
- SKP_int32 *S, /* I/O: State vector [ 2 ] */
- SKP_int16 *out, /* O: Output signal [ len ] */
- const SKP_int16 *in, /* I: Input signal [ floor(len/2) ] */
- SKP_int32 inLen /* I: Number of input samples */
-)
-{
- SKP_int32 k, len2 = SKP_RSHIFT32( inLen, 1 );
- SKP_int32 in32, out32, Y, X;
-
- SKP_assert( SKP_Silk_resampler_down2_0 > 0 );
- SKP_assert( SKP_Silk_resampler_down2_1 < 0 );
-
- /* Internal variables and state are in Q10 format */
- for( k = 0; k < len2; k++ ) {
- /* Convert to Q10 */
- in32 = SKP_LSHIFT( (SKP_int32)in[ 2 * k ], 10 );
-
- /* All-pass section for even input sample */
- Y = SKP_SUB32( in32, S[ 0 ] );
- X = SKP_SMLAWB( Y, Y, SKP_Silk_resampler_down2_1 );
- out32 = SKP_ADD32( S[ 0 ], X );
- S[ 0 ] = SKP_ADD32( in32, X );
-
- /* Convert to Q10 */
- in32 = SKP_LSHIFT( (SKP_int32)in[ 2 * k + 1 ], 10 );
-
- /* All-pass section for odd input sample, and add to output of previous section */
- Y = SKP_SUB32( in32, S[ 1 ] );
- X = SKP_SMULWB( Y, SKP_Silk_resampler_down2_0 );
- out32 = SKP_ADD32( out32, S[ 1 ] );
- out32 = SKP_ADD32( out32, X );
- S[ 1 ] = SKP_ADD32( in32, X );
-
- /* Add, convert back to int16 and store to output */
- out[ k ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( out32, 11 ) );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_resampler_down2_3.c *
- * *
- * Downsample by a factor 2/3, low quality *
- * *
- * Copyright 2010 (c), Skype Limited *
- * */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
-
-#define ORDER_FIR 4
-
-/* Downsample by a factor 2/3, low quality */
-void SKP_Silk_resampler_down2_3(
- SKP_int32 *S, /* I/O: State vector [ 6 ] */
- SKP_int16 *out, /* O: Output signal [ floor(2*inLen/3) ] */
- const SKP_int16 *in, /* I: Input signal [ inLen ] */
- SKP_int32 inLen /* I: Number of input samples */
-)
-{
- SKP_int32 nSamplesIn, counter, res_Q6;
- SKP_int32 buf[ RESAMPLER_MAX_BATCH_SIZE_IN + ORDER_FIR ];
- SKP_int32 *buf_ptr;
-
- /* Copy buffered samples to start of buffer */
- SKP_memcpy( buf, S, ORDER_FIR * sizeof( SKP_int32 ) );
-
- /* Iterate over blocks of frameSizeIn input samples */
- while( 1 ) {
- nSamplesIn = SKP_min( inLen, RESAMPLER_MAX_BATCH_SIZE_IN );
-
- /* Second-order AR filter (output in Q8) */
- SKP_Silk_resampler_private_AR2( &S[ ORDER_FIR ], &buf[ ORDER_FIR ], in,
- SKP_Silk_Resampler_2_3_COEFS_LQ, nSamplesIn );
-
- /* Interpolate filtered signal */
- buf_ptr = buf;
- counter = nSamplesIn;
- while( counter > 2 ) {
- /* Inner product */
- res_Q6 = SKP_SMULWB( buf_ptr[ 0 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 2 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 1 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 3 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 2 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 5 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 3 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 4 ] );
-
- /* Scale down, saturate and store in output array */
- *out++ = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( res_Q6, 6 ) );
-
- res_Q6 = SKP_SMULWB( buf_ptr[ 1 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 4 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 2 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 5 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 3 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 3 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 4 ], SKP_Silk_Resampler_2_3_COEFS_LQ[ 2 ] );
-
- /* Scale down, saturate and store in output array */
- *out++ = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( res_Q6, 6 ) );
-
- buf_ptr += 3;
- counter -= 3;
- }
-
- in += nSamplesIn;
- inLen -= nSamplesIn;
-
- if( inLen > 0 ) {
- /* More iterations to do; copy last part of filtered signal to beginning of buffer */
- SKP_memcpy( buf, &buf[ nSamplesIn ], ORDER_FIR * sizeof( SKP_int32 ) );
- } else {
- break;
- }
- }
-
- /* Copy last part of filtered signal to the state for the next call */
- SKP_memcpy( S, &buf[ nSamplesIn ], ORDER_FIR * sizeof( SKP_int32 ) );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_resampler_down3.c *
- * *
- * Downsample by a factor 3, low quality *
- * *
- * Copyright 2010 (c), Skype Limited *
- * */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
-
-#define ORDER_FIR 6
-
-/* Downsample by a factor 3, low quality */
-void SKP_Silk_resampler_down3(
- SKP_int32 *S, /* I/O: State vector [ 8 ] */
- SKP_int16 *out, /* O: Output signal [ floor(inLen/3) ] */
- const SKP_int16 *in, /* I: Input signal [ inLen ] */
- SKP_int32 inLen /* I: Number of input samples */
-)
-{
- SKP_int32 nSamplesIn, counter, res_Q6;
- SKP_int32 buf[ RESAMPLER_MAX_BATCH_SIZE_IN + ORDER_FIR ];
- SKP_int32 *buf_ptr;
-
- /* Copy buffered samples to start of buffer */
- SKP_memcpy( buf, S, ORDER_FIR * sizeof( SKP_int32 ) );
-
- /* Iterate over blocks of frameSizeIn input samples */
- while( 1 ) {
- nSamplesIn = SKP_min( inLen, RESAMPLER_MAX_BATCH_SIZE_IN );
-
- /* Second-order AR filter (output in Q8) */
- SKP_Silk_resampler_private_AR2( &S[ ORDER_FIR ], &buf[ ORDER_FIR ], in,
- SKP_Silk_Resampler_1_3_COEFS_LQ, nSamplesIn );
-
- /* Interpolate filtered signal */
- buf_ptr = buf;
- counter = nSamplesIn;
- while( counter > 2 ) {
- /* Inner product */
- res_Q6 = SKP_SMULWB( SKP_ADD32( buf_ptr[ 0 ], buf_ptr[ 5 ] ), SKP_Silk_Resampler_1_3_COEFS_LQ[ 2 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, SKP_ADD32( buf_ptr[ 1 ], buf_ptr[ 4 ] ), SKP_Silk_Resampler_1_3_COEFS_LQ[ 3 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, SKP_ADD32( buf_ptr[ 2 ], buf_ptr[ 3 ] ), SKP_Silk_Resampler_1_3_COEFS_LQ[ 4 ] );
-
- /* Scale down, saturate and store in output array */
- *out++ = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( res_Q6, 6 ) );
-
- buf_ptr += 3;
- counter -= 3;
- }
-
- in += nSamplesIn;
- inLen -= nSamplesIn;
-
- if( inLen > 0 ) {
- /* More iterations to do; copy last part of filtered signal to beginning of buffer */
- SKP_memcpy( buf, &buf[ nSamplesIn ], ORDER_FIR * sizeof( SKP_int32 ) );
- } else {
- break;
- }
- }
-
- /* Copy last part of filtered signal to the state for the next call */
- SKP_memcpy( S, &buf[ nSamplesIn ], ORDER_FIR * sizeof( SKP_int32 ) );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * File Name: SKP_Silk_resampler_structs.h *
- * *
- * Description: Structs for IIR/FIR resamplers *
- * *
- * Copyright 2010 (c), Skype Limited *
- * All rights reserved. *
- * *
- * */
-
-#ifndef SKP_Silk_RESAMPLER_H
-#define SKP_Silk_RESAMPLER_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_structs.h"
-#include "SKP_Silk_resampler_rom.h"
-
-/* Number of input samples to process in the inner loop */
-#define RESAMPLER_MAX_BATCH_SIZE_IN 480
-
-/* Description: Hybrid IIR/FIR polyphase implementation of resampling */
-void SKP_Silk_resampler_private_IIR_FIR(
- void *SS, /* I/O: Resampler state */
- SKP_int16 out[], /* O: Output signal */
- const SKP_int16 in[], /* I: Input signal */
- SKP_int32 inLen /* I: Number of input samples */
-);
-
-/* Description: Hybrid IIR/FIR polyphase implementation of resampling */
-void SKP_Silk_resampler_private_down_FIR(
- void *SS, /* I/O: Resampler state */
- SKP_int16 out[], /* O: Output signal */
- const SKP_int16 in[], /* I: Input signal */
- SKP_int32 inLen /* I: Number of input samples */
-);
-
-/* Copy */
-void SKP_Silk_resampler_private_copy(
- void *SS, /* I/O: Resampler state (unused) */
- SKP_int16 out[], /* O: Output signal */
- const SKP_int16 in[], /* I: Input signal */
- SKP_int32 inLen /* I: Number of input samples */
-);
-
-/* Upsample by a factor 2, high quality */
-void SKP_Silk_resampler_private_up2_HQ_wrapper(
- void *SS, /* I/O: Resampler state (unused) */
- SKP_int16 *out, /* O: Output signal [ 2 * len ] */
- const SKP_int16 *in, /* I: Input signal [ len ] */
- SKP_int32 len /* I: Number of input samples */
-);
-
-/* Upsample by a factor 2, high quality */
-void SKP_Silk_resampler_private_up2_HQ(
- SKP_int32 *S, /* I/O: Resampler state [ 6 ] */
- SKP_int16 *out, /* O: Output signal [ 2 * len ] */
- const SKP_int16 *in, /* I: Input signal [ len ] */
- SKP_int32 len /* I: Number of input samples */
-);
-
-/* Upsample 4x, low quality */
-void SKP_Silk_resampler_private_up4(
- SKP_int32 *S, /* I/O: State vector [ 2 ] */
- SKP_int16 *out, /* O: Output signal [ 4 * len ] */
- const SKP_int16 *in, /* I: Input signal [ len ] */
- SKP_int32 len /* I: Number of input samples */
-);
-
-/* Downsample 4x, low quality */
-void SKP_Silk_resampler_private_down4(
- SKP_int32 *S, /* I/O: State vector [ 2 ] */
- SKP_int16 *out, /* O: Output signal [ floor(len/2) ] */
- const SKP_int16 *in, /* I: Input signal [ len ] */
- SKP_int32 inLen /* I: Number of input samples */
-);
-
-/* Second order AR filter */
-void SKP_Silk_resampler_private_AR2(
- SKP_int32 S[], /* I/O: State vector [ 2 ] */
- SKP_int32 out_Q8[], /* O: Output signal */
- const SKP_int16 in[], /* I: Input signal */
- const SKP_int16 A_Q14[], /* I: AR coefficients, Q14 */
- SKP_int32 len /* I: Signal length */
-);
-
-/* Fourth order ARMA filter */
-void SKP_Silk_resampler_private_ARMA4(
- SKP_int32 S[], /* I/O: State vector [ 4 ] */
- SKP_int16 out[], /* O: Output signal */
- const SKP_int16 in[], /* I: Input signal */
- const SKP_int16 Coef[], /* I: ARMA coefficients [ 7 ] */
- SKP_int32 len /* I: Signal length */
-);
-
-
-#ifdef __cplusplus
-}
-#endif
-#endif // SKP_Silk_RESAMPLER_H
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_resampler_private_AR2. c *
- * *
- * Second order AR filter with single delay elements *
- * *
- * Copyright 2010 (c), Skype Limited *
- * */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
-
-/* Second order AR filter with single delay elements */
-void SKP_Silk_resampler_private_AR2(
- SKP_int32 S[], /* I/O: State vector [ 2 ] */
- SKP_int32 out_Q8[], /* O: Output signal */
- const SKP_int16 in[], /* I: Input signal */
- const SKP_int16 A_Q14[], /* I: AR coefficients, Q14 */
- SKP_int32 len /* I: Signal length */
-)
-{
- SKP_int32 k;
- SKP_int32 out32;
-
- for( k = 0; k < len; k++ ) {
- out32 = SKP_ADD_LSHIFT32( S[ 0 ], (SKP_int32)in[ k ], 8 );
- out_Q8[ k ] = out32;
- out32 = SKP_LSHIFT( out32, 2 );
- S[ 0 ] = SKP_SMLAWB( S[ 1 ], out32, A_Q14[ 0 ] );
- S[ 1 ] = SKP_SMULWB( out32, A_Q14[ 1 ] );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_resampler_private_ARMA4.c *
- * *
- * Fourth order ARMA filter, applies 64x gain *
- * *
- * Copyright 2010 (c), Skype Limited *
- * */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
-
-/* Fourth order ARMA filter */
-/* Internally operates as two biquad filters in sequence. */
-
-/* Coeffients are stored in a packed format: */
-/* { B1_Q14[1], B2_Q14[1], -A1_Q14[1], -A1_Q14[2], -A2_Q14[1], -A2_Q14[2], gain_Q16 } */
-/* where it is assumed that B*_Q14[0], B*_Q14[2], A*_Q14[0] are all 16384 */
-void SKP_Silk_resampler_private_ARMA4(
- SKP_int32 S[], /* I/O: State vector [ 4 ] */
- SKP_int16 out[], /* O: Output signal */
- const SKP_int16 in[], /* I: Input signal */
- const SKP_int16 Coef[], /* I: ARMA coefficients [ 7 ] */
- SKP_int32 len /* I: Signal length */
-)
-{
- SKP_int32 k;
- SKP_int32 in_Q8, out1_Q8, out2_Q8, X;
-
- for( k = 0; k < len; k++ ) {
- in_Q8 = SKP_LSHIFT32( (SKP_int32)in[ k ], 8 );
-
- /* Outputs of first and second biquad */
- out1_Q8 = SKP_ADD_LSHIFT32( in_Q8, S[ 0 ], 2 );
- out2_Q8 = SKP_ADD_LSHIFT32( out1_Q8, S[ 2 ], 2 );
-
- /* Update states, which are stored in Q6. Coefficients are in Q14 here */
- X = SKP_SMLAWB( S[ 1 ], in_Q8, Coef[ 0 ] );
- S[ 0 ] = SKP_SMLAWB( X, out1_Q8, Coef[ 2 ] );
-
- X = SKP_SMLAWB( S[ 3 ], out1_Q8, Coef[ 1 ] );
- S[ 2 ] = SKP_SMLAWB( X, out2_Q8, Coef[ 4 ] );
-
- S[ 1 ] = SKP_SMLAWB( SKP_RSHIFT32( in_Q8, 2 ), out1_Q8, Coef[ 3 ] );
- S[ 3 ] = SKP_SMLAWB( SKP_RSHIFT32( out1_Q8, 2 ), out2_Q8, Coef[ 5 ] );
-
- /* Apply gain and store to output. The coefficient is in Q16 */
- out[ k ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT32( SKP_SMLAWB( 128, out2_Q8, Coef[ 6 ] ), 8 ) );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * File Name: SKP_Silk_resampler_private_IIR_FIR.c *
- * *
- * Description: Hybrid IIR/FIR polyphase implementation of resampling *
- * *
- * Copyright 2010 (c), Skype Limited *
- * All rights reserved. *
- * */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
-SKP_INLINE SKP_int16 *SKP_Silk_resampler_private_IIR_FIR_INTERPOL(
- SKP_int16 * out, SKP_int16 * buf, SKP_int32 max_index_Q16 , SKP_int32 index_increment_Q16 ){
- SKP_int32 index_Q16, res_Q15;
- SKP_int16 *buf_ptr;
- SKP_int32 table_index;
- /* Interpolate upsampled signal and store in output array */
- for( index_Q16 = 0; index_Q16 < max_index_Q16; index_Q16 += index_increment_Q16 ) {
- table_index = SKP_SMULWB( index_Q16 & 0xFFFF, 144 );
- buf_ptr = &buf[ index_Q16 >> 16 ];
-
- res_Q15 = SKP_SMULBB( buf_ptr[ 0 ], SKP_Silk_resampler_frac_FIR_144[ table_index ][ 0 ] );
- res_Q15 = SKP_SMLABB( res_Q15, buf_ptr[ 1 ], SKP_Silk_resampler_frac_FIR_144[ table_index ][ 1 ] );
- res_Q15 = SKP_SMLABB( res_Q15, buf_ptr[ 2 ], SKP_Silk_resampler_frac_FIR_144[ table_index ][ 2 ] );
- res_Q15 = SKP_SMLABB( res_Q15, buf_ptr[ 3 ], SKP_Silk_resampler_frac_FIR_144[ 143 - table_index ][ 2 ] );
- res_Q15 = SKP_SMLABB( res_Q15, buf_ptr[ 4 ], SKP_Silk_resampler_frac_FIR_144[ 143 - table_index ][ 1 ] );
- res_Q15 = SKP_SMLABB( res_Q15, buf_ptr[ 5 ], SKP_Silk_resampler_frac_FIR_144[ 143 - table_index ][ 0 ] );
- *out++ = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( res_Q15, 15 ) );
- }
- return out;
-}
-/* Upsample using a combination of allpass-based 2x upsampling and FIR interpolation */
-void SKP_Silk_resampler_private_IIR_FIR(
- void *SS, /* I/O: Resampler state */
- SKP_int16 out[], /* O: Output signal */
- const SKP_int16 in[], /* I: Input signal */
- SKP_int32 inLen /* I: Number of input samples */
-)
-{
- SKP_Silk_resampler_state_struct *S = (SKP_Silk_resampler_state_struct *)SS;
- SKP_int32 nSamplesIn;
- SKP_int32 max_index_Q16, index_increment_Q16;
- SKP_int16 buf[ 2 * RESAMPLER_MAX_BATCH_SIZE_IN + RESAMPLER_ORDER_FIR_144 ];
-
-
- /* Copy buffered samples to start of buffer */
- SKP_memcpy( buf, S->sFIR, RESAMPLER_ORDER_FIR_144 * sizeof( SKP_int32 ) );
-
- /* Iterate over blocks of frameSizeIn input samples */
- index_increment_Q16 = S->invRatio_Q16;
- while( 1 ) {
- nSamplesIn = SKP_min( inLen, S->batchSize );
-
- if( S->input2x == 1 ) {
- /* Upsample 2x */
- S->up2_function( S->sIIR, &buf[ RESAMPLER_ORDER_FIR_144 ], in, nSamplesIn );
- } else {
- /* Fourth-order ARMA filter */
- SKP_Silk_resampler_private_ARMA4( S->sIIR, &buf[ RESAMPLER_ORDER_FIR_144 ], in, S->Coefs, nSamplesIn );
- }
-
- max_index_Q16 = SKP_LSHIFT32( nSamplesIn, 16 + S->input2x ); /* +1 if 2x upsampling */
- out = SKP_Silk_resampler_private_IIR_FIR_INTERPOL(out, buf, max_index_Q16, index_increment_Q16);
- in += nSamplesIn;
- inLen -= nSamplesIn;
-
- if( inLen > 0 ) {
- /* More iterations to do; copy last part of filtered signal to beginning of buffer */
- SKP_memcpy( buf, &buf[ nSamplesIn << S->input2x ], RESAMPLER_ORDER_FIR_144 * sizeof( SKP_int32 ) );
- } else {
- break;
- }
- }
-
- /* Copy last part of filtered signal to the state for the next call */
- SKP_memcpy( S->sFIR, &buf[nSamplesIn << S->input2x ], RESAMPLER_ORDER_FIR_144 * sizeof( SKP_int32 ) );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * File Name: SKP_Silk_resampler_private_copy.c *
- * *
- * Description: Copy. *
- * *
- * Copyright 2010 (c), Skype Limited *
- * All rights reserved. *
- * */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
-
-/* Copy */
-void SKP_Silk_resampler_private_copy(
- void *SS, /* I/O: Resampler state (unused) */
- SKP_int16 out[], /* O: Output signal */
- const SKP_int16 in[], /* I: Input signal */
- SKP_int32 inLen /* I: Number of input samples */
-)
-{
- SKP_memcpy( out, in, inLen * sizeof( SKP_int16 ) );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_resampler_private_down4.c *
- * *
- * Downsample by a factor 4 *
- * *
- * Copyright 2010 (c), Skype Limited *
- * */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
-
-/* Downsample by a factor 4. Note: very low quality, only use with input sampling rates above 96 kHz. */
-void SKP_Silk_resampler_private_down4(
- SKP_int32 *S, /* I/O: State vector [ 2 ] */
- SKP_int16 *out, /* O: Output signal [ floor(len/2) ] */
- const SKP_int16 *in, /* I: Input signal [ len ] */
- SKP_int32 inLen /* I: Number of input samples */
-)
-{
- SKP_int32 k, len4 = SKP_RSHIFT32( inLen, 2 );
- SKP_int32 in32, out32, Y, X;
-
- SKP_assert( SKP_Silk_resampler_down2_0 > 0 );
- SKP_assert( SKP_Silk_resampler_down2_1 < 0 );
-
- /* Internal variables and state are in Q10 format */
- for( k = 0; k < len4; k++ ) {
- /* Add two input samples and convert to Q10 */
- in32 = SKP_LSHIFT( SKP_ADD32( (SKP_int32)in[ 4 * k ], (SKP_int32)in[ 4 * k + 1 ] ), 9 );
-
- /* All-pass section for even input sample */
- Y = SKP_SUB32( in32, S[ 0 ] );
- X = SKP_SMLAWB( Y, Y, SKP_Silk_resampler_down2_1 );
- out32 = SKP_ADD32( S[ 0 ], X );
- S[ 0 ] = SKP_ADD32( in32, X );
-
- /* Add two input samples and convert to Q10 */
- in32 = SKP_LSHIFT( SKP_ADD32( (SKP_int32)in[ 4 * k + 2 ], (SKP_int32)in[ 4 * k + 3 ] ), 9 );
-
- /* All-pass section for odd input sample */
- Y = SKP_SUB32( in32, S[ 1 ] );
- X = SKP_SMULWB( Y, SKP_Silk_resampler_down2_0 );
- out32 = SKP_ADD32( out32, S[ 1 ] );
- out32 = SKP_ADD32( out32, X );
- S[ 1 ] = SKP_ADD32( in32, X );
-
- /* Add, convert back to int16 and store to output */
- out[ k ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( out32, 11 ) );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * File Name: SKP_Silk_resampler_private_down_FIR.c *
- * *
- * Description: Hybrid IIR/FIR polyphase implementation of resampling *
- * *
- * Copyright 2010 (c), Skype Limited *
- * All rights reserved. *
- * */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
-SKP_INLINE SKP_int16 *SKP_Silk_resampler_private_down_FIR_INTERPOL0(
- SKP_int16 *out, SKP_int32 *buf2, const SKP_int16 *FIR_Coefs, SKP_int32 max_index_Q16, SKP_int32 index_increment_Q16){
-
- SKP_int32 index_Q16, res_Q6;
- SKP_int32 *buf_ptr;
- for( index_Q16 = 0; index_Q16 < max_index_Q16; index_Q16 += index_increment_Q16 ) {
- /* Integer part gives pointer to buffered input */
- buf_ptr = buf2 + SKP_RSHIFT( index_Q16, 16 );
-
- /* Inner product */
- res_Q6 = SKP_SMULWB( SKP_ADD32( buf_ptr[ 0 ], buf_ptr[ 11 ] ), FIR_Coefs[ 0 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, SKP_ADD32( buf_ptr[ 1 ], buf_ptr[ 10 ] ), FIR_Coefs[ 1 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, SKP_ADD32( buf_ptr[ 2 ], buf_ptr[ 9 ] ), FIR_Coefs[ 2 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, SKP_ADD32( buf_ptr[ 3 ], buf_ptr[ 8 ] ), FIR_Coefs[ 3 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, SKP_ADD32( buf_ptr[ 4 ], buf_ptr[ 7 ] ), FIR_Coefs[ 4 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, SKP_ADD32( buf_ptr[ 5 ], buf_ptr[ 6 ] ), FIR_Coefs[ 5 ] );
-
- /* Scale down, saturate and store in output array */
- *out++ = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( res_Q6, 6 ) );
- }
- return out;
-}
-
-SKP_INLINE SKP_int16 *SKP_Silk_resampler_private_down_FIR_INTERPOL1(
- SKP_int16 *out, SKP_int32 *buf2, const SKP_int16 *FIR_Coefs, SKP_int32 max_index_Q16, SKP_int32 index_increment_Q16, SKP_int32 FIR_Fracs){
-
- SKP_int32 index_Q16, res_Q6;
- SKP_int32 *buf_ptr;
- SKP_int32 interpol_ind;
- const SKP_int16 *interpol_ptr;
- for( index_Q16 = 0; index_Q16 < max_index_Q16; index_Q16 += index_increment_Q16 ) {
- /* Integer part gives pointer to buffered input */
- buf_ptr = buf2 + SKP_RSHIFT( index_Q16, 16 );
-
- /* Fractional part gives interpolation coefficients */
- interpol_ind = SKP_SMULWB( index_Q16 & 0xFFFF, FIR_Fracs );
-
- /* Inner product */
- interpol_ptr = &FIR_Coefs[ RESAMPLER_DOWN_ORDER_FIR / 2 * interpol_ind ];
- res_Q6 = SKP_SMULWB( buf_ptr[ 0 ], interpol_ptr[ 0 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 1 ], interpol_ptr[ 1 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 2 ], interpol_ptr[ 2 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 3 ], interpol_ptr[ 3 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 4 ], interpol_ptr[ 4 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 5 ], interpol_ptr[ 5 ] );
- interpol_ptr = &FIR_Coefs[ RESAMPLER_DOWN_ORDER_FIR / 2 * ( FIR_Fracs - 1 - interpol_ind ) ];
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 11 ], interpol_ptr[ 0 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 10 ], interpol_ptr[ 1 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 9 ], interpol_ptr[ 2 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 8 ], interpol_ptr[ 3 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 7 ], interpol_ptr[ 4 ] );
- res_Q6 = SKP_SMLAWB( res_Q6, buf_ptr[ 6 ], interpol_ptr[ 5 ] );
-
- /* Scale down, saturate and store in output array */
- *out++ = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( res_Q6, 6 ) );
- }
- return out;
-}
-
-
-/* Resample with a 2x downsampler (optional), a 2nd order AR filter followed by FIR interpolation */
-void SKP_Silk_resampler_private_down_FIR(
- void *SS, /* I/O: Resampler state */
- SKP_int16 out[], /* O: Output signal */
- const SKP_int16 in[], /* I: Input signal */
- SKP_int32 inLen /* I: Number of input samples */
-)
-{
- SKP_Silk_resampler_state_struct *S = (SKP_Silk_resampler_state_struct *)SS;
- SKP_int32 nSamplesIn;
- SKP_int32 max_index_Q16, index_increment_Q16;
- SKP_int16 buf1[ RESAMPLER_MAX_BATCH_SIZE_IN / 2 ];
- SKP_int32 buf2[ RESAMPLER_MAX_BATCH_SIZE_IN + RESAMPLER_DOWN_ORDER_FIR ];
- const SKP_int16 *FIR_Coefs;
-
- /* Copy buffered samples to start of buffer */
- SKP_memcpy( buf2, S->sFIR, RESAMPLER_DOWN_ORDER_FIR * sizeof( SKP_int32 ) );
-
- FIR_Coefs = &S->Coefs[ 2 ];
-
- /* Iterate over blocks of frameSizeIn input samples */
- index_increment_Q16 = S->invRatio_Q16;
- while( 1 ) {
- nSamplesIn = SKP_min( inLen, S->batchSize );
-
- if( S->input2x == 1 ) {
- /* Downsample 2x */
- SKP_Silk_resampler_down2( S->sDown2, buf1, in, nSamplesIn );
-
- nSamplesIn = SKP_RSHIFT32( nSamplesIn, 1 );
-
- /* Second-order AR filter (output in Q8) */
- SKP_Silk_resampler_private_AR2( S->sIIR, &buf2[ RESAMPLER_DOWN_ORDER_FIR ], buf1, S->Coefs, nSamplesIn );
- } else {
- /* Second-order AR filter (output in Q8) */
- SKP_Silk_resampler_private_AR2( S->sIIR, &buf2[ RESAMPLER_DOWN_ORDER_FIR ], in, S->Coefs, nSamplesIn );
- }
-
- max_index_Q16 = SKP_LSHIFT32( nSamplesIn, 16 );
-
- /* Interpolate filtered signal */
- if( S->FIR_Fracs == 1 ) {
- out = SKP_Silk_resampler_private_down_FIR_INTERPOL0(out, buf2, FIR_Coefs, max_index_Q16, index_increment_Q16);
- } else {
- out = SKP_Silk_resampler_private_down_FIR_INTERPOL1(out, buf2, FIR_Coefs, max_index_Q16, index_increment_Q16, S->FIR_Fracs);
- }
-
- in += nSamplesIn << S->input2x;
- inLen -= nSamplesIn << S->input2x;
-
- if( inLen > S->input2x ) {
- /* More iterations to do; copy last part of filtered signal to beginning of buffer */
- SKP_memcpy( buf2, &buf2[ nSamplesIn ], RESAMPLER_DOWN_ORDER_FIR * sizeof( SKP_int32 ) );
- } else {
- break;
- }
- }
-
- /* Copy last part of filtered signal to the state for the next call */
- SKP_memcpy( S->sFIR, &buf2[ nSamplesIn ], RESAMPLER_DOWN_ORDER_FIR * sizeof( SKP_int32 ) );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_resampler_private_up2_HQ.c *
- * *
- * Upsample by a factor 2, high quality *
- * *
- * Copyright 2010 (c), Skype Limited *
- * */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
-
-/* Upsample by a factor 2, high quality */
-/* Uses 2nd order allpass filters for the 2x upsampling, followed by a */
-/* notch filter just above Nyquist. */
-void SKP_Silk_resampler_private_up2_HQ(
- SKP_int32 *S, /* I/O: Resampler state [ 6 ] */
- SKP_int16 *out, /* O: Output signal [ 2 * len ] */
- const SKP_int16 *in, /* I: Input signal [ len ] */
- SKP_int32 len /* I: Number of INPUT samples */
-)
-{
- SKP_int32 k;
- SKP_int32 in32, out32_1, out32_2, Y, X;
-
- SKP_assert( SKP_Silk_resampler_up2_hq_0[ 0 ] > 0 );
- SKP_assert( SKP_Silk_resampler_up2_hq_0[ 1 ] < 0 );
- SKP_assert( SKP_Silk_resampler_up2_hq_1[ 0 ] > 0 );
- SKP_assert( SKP_Silk_resampler_up2_hq_1[ 1 ] < 0 );
-
- /* Internal variables and state are in Q10 format */
- for( k = 0; k < len; k++ ) {
- /* Convert to Q10 */
- in32 = SKP_LSHIFT( (SKP_int32)in[ k ], 10 );
-
- /* First all-pass section for even output sample */
- Y = SKP_SUB32( in32, S[ 0 ] );
- X = SKP_SMULWB( Y, SKP_Silk_resampler_up2_hq_0[ 0 ] );
- out32_1 = SKP_ADD32( S[ 0 ], X );
- S[ 0 ] = SKP_ADD32( in32, X );
-
- /* Second all-pass section for even output sample */
- Y = SKP_SUB32( out32_1, S[ 1 ] );
- X = SKP_SMLAWB( Y, Y, SKP_Silk_resampler_up2_hq_0[ 1 ] );
- out32_2 = SKP_ADD32( S[ 1 ], X );
- S[ 1 ] = SKP_ADD32( out32_1, X );
-
- /* Biquad notch filter */
- out32_2 = SKP_SMLAWB( out32_2, S[ 5 ], SKP_Silk_resampler_up2_hq_notch[ 2 ] );
- out32_2 = SKP_SMLAWB( out32_2, S[ 4 ], SKP_Silk_resampler_up2_hq_notch[ 1 ] );
- out32_1 = SKP_SMLAWB( out32_2, S[ 4 ], SKP_Silk_resampler_up2_hq_notch[ 0 ] );
- S[ 5 ] = SKP_SUB32( out32_2, S[ 5 ] );
-
- /* Apply gain in Q15, convert back to int16 and store to output */
- out[ 2 * k ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT32(
- SKP_SMLAWB( 256, out32_1, SKP_Silk_resampler_up2_hq_notch[ 3 ] ), 9 ) );
-
- /* First all-pass section for odd output sample */
- Y = SKP_SUB32( in32, S[ 2 ] );
- X = SKP_SMULWB( Y, SKP_Silk_resampler_up2_hq_1[ 0 ] );
- out32_1 = SKP_ADD32( S[ 2 ], X );
- S[ 2 ] = SKP_ADD32( in32, X );
-
- /* Second all-pass section for odd output sample */
- Y = SKP_SUB32( out32_1, S[ 3 ] );
- X = SKP_SMLAWB( Y, Y, SKP_Silk_resampler_up2_hq_1[ 1 ] );
- out32_2 = SKP_ADD32( S[ 3 ], X );
- S[ 3 ] = SKP_ADD32( out32_1, X );
-
- /* Biquad notch filter */
- out32_2 = SKP_SMLAWB( out32_2, S[ 4 ], SKP_Silk_resampler_up2_hq_notch[ 2 ] );
- out32_2 = SKP_SMLAWB( out32_2, S[ 5 ], SKP_Silk_resampler_up2_hq_notch[ 1 ] );
- out32_1 = SKP_SMLAWB( out32_2, S[ 5 ], SKP_Silk_resampler_up2_hq_notch[ 0 ] );
- S[ 4 ] = SKP_SUB32( out32_2, S[ 4 ] );
-
- /* Apply gain in Q15, convert back to int16 and store to output */
- out[ 2 * k + 1 ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT32(
- SKP_SMLAWB( 256, out32_1, SKP_Silk_resampler_up2_hq_notch[ 3 ] ), 9 ) );
- }
-}
-
-
-void SKP_Silk_resampler_private_up2_HQ_wrapper(
- void *SS, /* I/O: Resampler state (unused) */
- SKP_int16 *out, /* O: Output signal [ 2 * len ] */
- const SKP_int16 *in, /* I: Input signal [ len ] */
- SKP_int32 len /* I: Number of input samples */
-)
-{
- SKP_Silk_resampler_state_struct *S = (SKP_Silk_resampler_state_struct *)SS;
- SKP_Silk_resampler_private_up2_HQ( S->sIIR, out, in, len );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_resampler_private_up4.c *
- * *
- * Upsample by a factor 4, low quality *
- * *
- * Copyright 2010 (c), Skype Limited *
- * */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_private.h"
-
-/* Upsample by a factor 4, Note: very low quality, only use with output sampling rates above 96 kHz. */
-void SKP_Silk_resampler_private_up4(
- SKP_int32 *S, /* I/O: State vector [ 2 ] */
- SKP_int16 *out, /* O: Output signal [ 4 * len ] */
- const SKP_int16 *in, /* I: Input signal [ len ] */
- SKP_int32 len /* I: Number of INPUT samples */
-)
-{
- SKP_int32 k;
- SKP_int32 in32, out32, Y, X;
- SKP_int16 out16;
-
- SKP_assert( SKP_Silk_resampler_up2_lq_0 > 0 );
- SKP_assert( SKP_Silk_resampler_up2_lq_1 < 0 );
-
- /* Internal variables and state are in Q10 format */
- for( k = 0; k < len; k++ ) {
- /* Convert to Q10 */
- in32 = SKP_LSHIFT( (SKP_int32)in[ k ], 10 );
-
- /* All-pass section for even output sample */
- Y = SKP_SUB32( in32, S[ 0 ] );
- X = SKP_SMULWB( Y, SKP_Silk_resampler_up2_lq_0 );
- out32 = SKP_ADD32( S[ 0 ], X );
- S[ 0 ] = SKP_ADD32( in32, X );
-
- /* Convert back to int16 and store to output */
- out16 = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( out32, 10 ) );
- out[ 4 * k ] = out16;
- out[ 4 * k + 1 ] = out16;
-
- /* All-pass section for odd output sample */
- Y = SKP_SUB32( in32, S[ 1 ] );
- X = SKP_SMLAWB( Y, Y, SKP_Silk_resampler_up2_lq_1 );
- out32 = SKP_ADD32( S[ 1 ], X );
- S[ 1 ] = SKP_ADD32( in32, X );
-
- /* Convert back to int16 and store to output */
- out16 = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( out32, 10 ) );
- out[ 4 * k + 2 ] = out16;
- out[ 4 * k + 3 ] = out16;
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * File Name: SKP_Silk_resampler_rom.c *
- * *
- * Description: Filter coefficients for IIR/FIR polyphase resampling *
- * Total size: 550 Words (1.1 kB) *
- * *
- * Copyright 2010 (c), Skype Limited *
- * All rights reserved. *
- * */
-
-#include "SKP_Silk_resampler_private.h"
-
-/* Tables for 2x downsampler */
-const SKP_int16 SKP_Silk_resampler_down2_0 = 9872;
-const SKP_int16 SKP_Silk_resampler_down2_1 = 39809 - 65536;
-
-/* Tables for 2x upsampler, low quality */
-const SKP_int16 SKP_Silk_resampler_up2_lq_0 = 8102;
-const SKP_int16 SKP_Silk_resampler_up2_lq_1 = 36783 - 65536;
-
-/* Tables for 2x upsampler, high quality */
-const SKP_int16 SKP_Silk_resampler_up2_hq_0[ 2 ] = { 4280, 33727 - 65536 };
-const SKP_int16 SKP_Silk_resampler_up2_hq_1[ 2 ] = { 16295, 54015 - 65536 };
-/* Matlab code for the notch filter coefficients: */
-/* B = [1, 0.12, 1]; A = [1, 0.055, 0.8]; G = 0.87; freqz(G * B, A, 2^14, 16e3); axis([0, 8000, -10, 1]); */
-/* fprintf('\t%6d, %6d, %6d, %6d\n', round(B(2)*2^16), round(-A(2)*2^16), round((1-A(3))*2^16), round(G*2^15)) */
-const SKP_int16 SKP_Silk_resampler_up2_hq_notch[ 4 ] = { 7864, -3604, 13107, 28508 };
-
-
-/* Tables with IIR and FIR coefficients for fractional downsamplers (70 Words) */
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_3_4_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_FIR / 2 ] = {
- -18249, -12532,
- -97, 284, -495, 309, 10268, 20317,
- -94, 156, -48, -720, 5984, 18278,
- -45, -4, 237, -847, 2540, 14662,
-};
-
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_2_3_COEFS[ 2 + 2 * RESAMPLER_DOWN_ORDER_FIR / 2 ] = {
- -11891, -12486,
- 20, 211, -657, 688, 8423, 15911,
- -44, 197, -152, -653, 3855, 13015,
-};
-
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_1_2_COEFS[ 2 + RESAMPLER_DOWN_ORDER_FIR / 2 ] = {
- 2415, -13101,
- 158, -295, -400, 1265, 4832, 7968,
-};
-
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_3_8_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_FIR / 2 ] = {
- 13270, -13738,
- -294, -123, 747, 2043, 3339, 3995,
- -151, -311, 414, 1583, 2947, 3877,
- -33, -389, 143, 1141, 2503, 3653,
-};
-
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_1_3_COEFS[ 2 + RESAMPLER_DOWN_ORDER_FIR / 2 ] = {
- 16643, -14000,
- -331, 19, 581, 1421, 2290, 2845,
-};
-
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_2_3_COEFS_LQ[ 2 + 2 * 2 ] = {
- -2797, -6507,
- 4697, 10739,
- 1567, 8276,
-};
-
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_1_3_COEFS_LQ[ 2 + 3 ] = {
- 16777, -9792,
- 890, 1614, 2148,
-};
-
-
-/* Tables with coefficients for 4th order ARMA filter (35 Words), in a packed format: */
-/* { B1_Q14[1], B2_Q14[1], -A1_Q14[1], -A1_Q14[2], -A2_Q14[1], -A2_Q14[2], gain_Q16 } */
-/* where it is assumed that B*_Q14[0], B*_Q14[2], A*_Q14[0] are all 16384 */
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_320_441_ARMA4_COEFS[ 7 ] = {
- 31454, 24746, -9706, -3386, -17911, -13243, 24797
-};
-
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_240_441_ARMA4_COEFS[ 7 ] = {
- 28721, 11254, 3189, -2546, -1495, -12618, 11562
-};
-
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_160_441_ARMA4_COEFS[ 7 ] = {
- 23492, -6457, 14358, -4856, 14654, -13008, 4456
-};
-
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_120_441_ARMA4_COEFS[ 7 ] = {
- 19311, -15569, 19489, -6950, 21441, -13559, 2370
-};
-
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_Resampler_80_441_ARMA4_COEFS[ 7 ] = {
- 13248, -23849, 24126, -9486, 26806, -14286, 1065
-};
-
-/* Table with interplation fractions of 1/288 : 2/288 : 287/288 (432 Words) */
-SKP_DWORD_ALIGN const SKP_int16 SKP_Silk_resampler_frac_FIR_144[ 144 ][ RESAMPLER_ORDER_FIR_144 / 2 ] = {
- { -647, 1884, 30078},
- { -625, 1736, 30044},
- { -603, 1591, 30005},
- { -581, 1448, 29963},
- { -559, 1308, 29917},
- { -537, 1169, 29867},
- { -515, 1032, 29813},
- { -494, 898, 29755},
- { -473, 766, 29693},
- { -452, 636, 29627},
- { -431, 508, 29558},
- { -410, 383, 29484},
- { -390, 260, 29407},
- { -369, 139, 29327},
- { -349, 20, 29242},
- { -330, -97, 29154},
- { -310, -211, 29062},
- { -291, -324, 28967},
- { -271, -434, 28868},
- { -253, -542, 28765},
- { -234, -647, 28659},
- { -215, -751, 28550},
- { -197, -852, 28436},
- { -179, -951, 28320},
- { -162, -1048, 28200},
- { -144, -1143, 28077},
- { -127, -1235, 27950},
- { -110, -1326, 27820},
- { -94, -1414, 27687},
- { -77, -1500, 27550},
- { -61, -1584, 27410},
- { -45, -1665, 27268},
- { -30, -1745, 27122},
- { -15, -1822, 26972},
- { 0, -1897, 26820},
- { 15, -1970, 26665},
- { 29, -2041, 26507},
- { 44, -2110, 26346},
- { 57, -2177, 26182},
- { 71, -2242, 26015},
- { 84, -2305, 25845},
- { 97, -2365, 25673},
- { 110, -2424, 25498},
- { 122, -2480, 25320},
- { 134, -2534, 25140},
- { 146, -2587, 24956},
- { 157, -2637, 24771},
- { 168, -2685, 24583},
- { 179, -2732, 24392},
- { 190, -2776, 24199},
- { 200, -2819, 24003},
- { 210, -2859, 23805},
- { 220, -2898, 23605},
- { 229, -2934, 23403},
- { 238, -2969, 23198},
- { 247, -3002, 22992},
- { 255, -3033, 22783},
- { 263, -3062, 22572},
- { 271, -3089, 22359},
- { 279, -3114, 22144},
- { 286, -3138, 21927},
- { 293, -3160, 21709},
- { 300, -3180, 21488},
- { 306, -3198, 21266},
- { 312, -3215, 21042},
- { 318, -3229, 20816},
- { 323, -3242, 20589},
- { 328, -3254, 20360},
- { 333, -3263, 20130},
- { 338, -3272, 19898},
- { 342, -3278, 19665},
- { 346, -3283, 19430},
- { 350, -3286, 19194},
- { 353, -3288, 18957},
- { 356, -3288, 18718},
- { 359, -3286, 18478},
- { 362, -3283, 18238},
- { 364, -3279, 17996},
- { 366, -3273, 17753},
- { 368, -3266, 17509},
- { 369, -3257, 17264},
- { 371, -3247, 17018},
- { 372, -3235, 16772},
- { 372, -3222, 16525},
- { 373, -3208, 16277},
- { 373, -3192, 16028},
- { 373, -3175, 15779},
- { 373, -3157, 15529},
- { 372, -3138, 15279},
- { 371, -3117, 15028},
- { 370, -3095, 14777},
- { 369, -3072, 14526},
- { 368, -3048, 14274},
- { 366, -3022, 14022},
- { 364, -2996, 13770},
- { 362, -2968, 13517},
- { 359, -2940, 13265},
- { 357, -2910, 13012},
- { 354, -2880, 12760},
- { 351, -2848, 12508},
- { 348, -2815, 12255},
- { 344, -2782, 12003},
- { 341, -2747, 11751},
- { 337, -2712, 11500},
- { 333, -2676, 11248},
- { 328, -2639, 10997},
- { 324, -2601, 10747},
- { 320, -2562, 10497},
- { 315, -2523, 10247},
- { 310, -2482, 9998},
- { 305, -2442, 9750},
- { 300, -2400, 9502},
- { 294, -2358, 9255},
- { 289, -2315, 9009},
- { 283, -2271, 8763},
- { 277, -2227, 8519},
- { 271, -2182, 8275},
- { 265, -2137, 8032},
- { 259, -2091, 7791},
- { 252, -2045, 7550},
- { 246, -1998, 7311},
- { 239, -1951, 7072},
- { 232, -1904, 6835},
- { 226, -1856, 6599},
- { 219, -1807, 6364},
- { 212, -1758, 6131},
- { 204, -1709, 5899},
- { 197, -1660, 5668},
- { 190, -1611, 5439},
- { 183, -1561, 5212},
- { 175, -1511, 4986},
- { 168, -1460, 4761},
- { 160, -1410, 4538},
- { 152, -1359, 4317},
- { 145, -1309, 4098},
- { 137, -1258, 3880},
- { 129, -1207, 3664},
- { 121, -1156, 3450},
- { 113, -1105, 3238},
- { 105, -1054, 3028},
- { 97, -1003, 2820},
- { 89, -952, 2614},
- { 81, -901, 2409},
- { 73, -851, 2207},
-};
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * File Name: SKP_Silk_resample_rom.h *
- * *
- * Description: Header file for FIR resampling of *
- * 32 and 44 kHz input *
- * *
- * Copyright 2007 (c), Skype Limited *
- * All rights reserved. *
- * *
- * Date: 070807 *
- * */
-
-#ifndef _SKP_SILK_FIX_RESAMPLER_ROM_H_
-#define _SKP_SILK_FIX_RESAMPLER_ROM_H_
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_resampler_structs.h"
-
-#define RESAMPLER_DOWN_ORDER_FIR 12
-#define RESAMPLER_ORDER_FIR_144 6
-
-
-/* Tables for 2x downsampler. Values above 32767 intentionally wrap to a negative value. */
-extern const SKP_int16 SKP_Silk_resampler_down2_0;
-extern const SKP_int16 SKP_Silk_resampler_down2_1;
-
-/* Tables for 2x upsampler, low quality. Values above 32767 intentionally wrap to a negative value. */
-extern const SKP_int16 SKP_Silk_resampler_up2_lq_0;
-extern const SKP_int16 SKP_Silk_resampler_up2_lq_1;
-
-/* Tables for 2x upsampler, high quality. Values above 32767 intentionally wrap to a negative value. */
-extern const SKP_int16 SKP_Silk_resampler_up2_hq_0[ 2 ];
-extern const SKP_int16 SKP_Silk_resampler_up2_hq_1[ 2 ];
-extern const SKP_int16 SKP_Silk_resampler_up2_hq_notch[ 4 ];
-
-/* Tables with IIR and FIR coefficients for fractional downsamplers */
-extern const SKP_int16 SKP_Silk_Resampler_3_4_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_FIR / 2 ];
-extern const SKP_int16 SKP_Silk_Resampler_2_3_COEFS[ 2 + 2 * RESAMPLER_DOWN_ORDER_FIR / 2 ];
-extern const SKP_int16 SKP_Silk_Resampler_1_2_COEFS[ 2 + RESAMPLER_DOWN_ORDER_FIR / 2 ];
-extern const SKP_int16 SKP_Silk_Resampler_3_8_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_FIR / 2 ];
-extern const SKP_int16 SKP_Silk_Resampler_1_3_COEFS[ 2 + RESAMPLER_DOWN_ORDER_FIR / 2 ];
-extern const SKP_int16 SKP_Silk_Resampler_2_3_COEFS_LQ[ 2 + 2 * 2 ];
-extern const SKP_int16 SKP_Silk_Resampler_1_3_COEFS_LQ[ 2 + 3 ];
-
-/* Tables with coefficients for 4th order ARMA filter */
-extern const SKP_int16 SKP_Silk_Resampler_320_441_ARMA4_COEFS[ 7 ];
-extern const SKP_int16 SKP_Silk_Resampler_240_441_ARMA4_COEFS[ 7 ];
-extern const SKP_int16 SKP_Silk_Resampler_160_441_ARMA4_COEFS[ 7 ];
-extern const SKP_int16 SKP_Silk_Resampler_120_441_ARMA4_COEFS[ 7 ];
-extern const SKP_int16 SKP_Silk_Resampler_80_441_ARMA4_COEFS[ 7 ];
-
-/* Table with interplation fractions of 1/288 : 2/288 : 287/288 (432 Words) */
-extern const SKP_int16 SKP_Silk_resampler_frac_FIR_144[ 144 ][ RESAMPLER_ORDER_FIR_144 / 2 ];
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif // _SKP_SILK_FIX_RESAMPLER_ROM_H_
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * File Name: SKP_Silk_resampler_structs.h *
- * *
- * Description: Structs for IIR/FIR resamplers *
- * *
- * Copyright 2010 (c), Skype Limited *
- * All rights reserved. *
- * *
- * */
-
-#ifndef SKP_Silk_RESAMPLER_STRUCTS_H
-#define SKP_Silk_RESAMPLER_STRUCTS_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Flag to enable support for input/output sampling rates above 48 kHz. Turn off for embedded devices */
-#define RESAMPLER_SUPPORT_ABOVE_48KHZ 1
-
-#define SKP_Silk_RESAMPLER_MAX_FIR_ORDER 16
-#define SKP_Silk_RESAMPLER_MAX_IIR_ORDER 6
-
-
-typedef struct _SKP_Silk_resampler_state_struct{
- SKP_int32 sIIR[ SKP_Silk_RESAMPLER_MAX_IIR_ORDER ]; /* this must be the first element of this struct */
- SKP_int32 sFIR[ SKP_Silk_RESAMPLER_MAX_FIR_ORDER ];
- SKP_int32 sDown2[ 2 ];
- void (*resampler_function)( void *, SKP_int16 *, const SKP_int16 *, SKP_int32 );
- void (*up2_function)( SKP_int32 *, SKP_int16 *, const SKP_int16 *, SKP_int32 );
- SKP_int32 batchSize;
- SKP_int32 invRatio_Q16;
- SKP_int32 FIR_Fracs;
- SKP_int32 input2x;
- const SKP_int16 *Coefs;
-#if RESAMPLER_SUPPORT_ABOVE_48KHZ
- SKP_int32 sDownPre[ 2 ];
- SKP_int32 sUpPost[ 2 ];
- void (*down_pre_function)( SKP_int32 *, SKP_int16 *, const SKP_int16 *, SKP_int32 );
- void (*up_post_function)( SKP_int32 *, SKP_int16 *, const SKP_int16 *, SKP_int32 );
- SKP_int32 batchSizePrePost;
- SKP_int32 ratio_Q16;
- SKP_int32 nPreDownsamplers;
- SKP_int32 nPostUpsamplers;
-#endif
- SKP_int32 magic_number;
-} SKP_Silk_resampler_state_struct;
-
-#ifdef __cplusplus
-}
-#endif
-#endif /* SKP_Silk_RESAMPLER_STRUCTS_H */
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_resampler_up2.c *
- * *
- * Upsample by a factor 2, low quality *
- * *
- * Copyright 2010 (c), Skype Limited *
- * */
-
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_resampler_rom.h"
-
-/* Upsample by a factor 2, low quality */
-void SKP_Silk_resampler_up2(
- SKP_int32 *S, /* I/O: State vector [ 2 ] */
- SKP_int16 *out, /* O: Output signal [ 2 * len ] */
- const SKP_int16 *in, /* I: Input signal [ len ] */
- SKP_int32 len /* I: Number of input samples */
-)
-{
- SKP_int32 k;
- SKP_int32 in32, out32, Y, X;
-
- SKP_assert( SKP_Silk_resampler_up2_lq_0 > 0 );
- SKP_assert( SKP_Silk_resampler_up2_lq_1 < 0 );
- /* Internal variables and state are in Q10 format */
- for( k = 0; k < len; k++ ) {
- /* Convert to Q10 */
- in32 = SKP_LSHIFT( (SKP_int32)in[ k ], 10 );
-
- /* All-pass section for even output sample */
- Y = SKP_SUB32( in32, S[ 0 ] );
- X = SKP_SMULWB( Y, SKP_Silk_resampler_up2_lq_0 );
- out32 = SKP_ADD32( S[ 0 ], X );
- S[ 0 ] = SKP_ADD32( in32, X );
-
- /* Convert back to int16 and store to output */
- out[ 2 * k ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( out32, 10 ) );
-
- /* All-pass section for odd output sample */
- Y = SKP_SUB32( in32, S[ 1 ] );
- X = SKP_SMLAWB( Y, Y, SKP_Silk_resampler_up2_lq_1 );
- out32 = SKP_ADD32( S[ 1 ], X );
- S[ 1 ] = SKP_ADD32( in32, X );
-
- /* Convert back to int16 and store to output */
- out[ 2 * k + 1 ] = (SKP_int16)SKP_SAT16( SKP_RSHIFT_ROUND( out32, 10 ) );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-
-/* Residual energy: nrg = wxx - 2 * wXx * c + c' * wXX * c */
-SKP_int32 SKP_Silk_residual_energy16_covar_FIX(
- const SKP_int16 *c, /* I Prediction vector */
- const SKP_int32 *wXX, /* I Correlation matrix */
- const SKP_int32 *wXx, /* I Correlation vector */
- SKP_int32 wxx, /* I Signal energy */
- SKP_int D, /* I Dimension */
- SKP_int cQ /* I Q value for c vector 0 - 15 */
-)
-{
- SKP_int i, j, lshifts, Qxtra;
- SKP_int32 c_max, w_max, tmp, tmp2, nrg;
- SKP_int cn[ MAX_MATRIX_SIZE ];
- const SKP_int32 *pRow;
-
- /* Safety checks */
- SKP_assert( D >= 0 );
- SKP_assert( D <= 16 );
- SKP_assert( cQ > 0 );
- SKP_assert( cQ < 16 );
-
- lshifts = 16 - cQ;
- Qxtra = lshifts;
-
- c_max = 0;
- for( i = 0; i < D; i++ ) {
- c_max = SKP_max_32( c_max, SKP_abs( ( SKP_int32 )c[ i ] ) );
- }
- Qxtra = SKP_min_int( Qxtra, SKP_Silk_CLZ32( c_max ) - 17 );
-
- w_max = SKP_max_32( wXX[ 0 ], wXX[ D * D - 1 ] );
- Qxtra = SKP_min_int( Qxtra, SKP_Silk_CLZ32( SKP_MUL( D, SKP_RSHIFT( SKP_SMULWB( w_max, c_max ), 4 ) ) ) - 5 );
- Qxtra = SKP_max_int( Qxtra, 0 );
- for( i = 0; i < D; i++ ) {
- cn[ i ] = SKP_LSHIFT( ( SKP_int )c[ i ], Qxtra );
- SKP_assert( SKP_abs(cn[i]) <= ( SKP_int16_MAX + 1 ) ); /* Check that SKP_SMLAWB can be used */
- }
- lshifts -= Qxtra;
-
- /* Compute wxx - 2 * wXx * c */
- tmp = 0;
- for( i = 0; i < D; i++ ) {
- tmp = SKP_SMLAWB( tmp, wXx[ i ], cn[ i ] );
- }
- nrg = SKP_RSHIFT( wxx, 1 + lshifts ) - tmp; /* Q: -lshifts - 1 */
-
- /* Add c' * wXX * c, assuming wXX is symmetric */
- tmp2 = 0;
- for( i = 0; i < D; i++ ) {
- tmp = 0;
- pRow = &wXX[ i * D ];
- for( j = i + 1; j < D; j++ ) {
- tmp = SKP_SMLAWB( tmp, pRow[ j ], cn[ j ] );
- }
- tmp = SKP_SMLAWB( tmp, SKP_RSHIFT( pRow[ i ], 1 ), cn[ i ] );
- tmp2 = SKP_SMLAWB( tmp2, tmp, cn[ i ] );
- }
- nrg = SKP_ADD_LSHIFT32( nrg, tmp2, lshifts ); /* Q: -lshifts - 1 */
-
- /* Keep one bit free always, because we add them for LSF interpolation */
- if( nrg < 1 ) {
- nrg = 1;
- } else if( nrg > SKP_RSHIFT( SKP_int32_MAX, lshifts + 2 ) ) {
- nrg = SKP_int32_MAX >> 1;
- } else {
- nrg = SKP_LSHIFT( nrg, lshifts + 1 ); /* Q0 */
- }
- return nrg;
-
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-
-/* Calculates residual energies of input subframes where all subframes have LPC_order */
-/* of preceeding samples */
-void SKP_Silk_residual_energy_FIX(
- SKP_int32 nrgs[ NB_SUBFR ], /* O Residual energy per subframe */
- SKP_int nrgsQ[ NB_SUBFR ], /* O Q value per subframe */
- const SKP_int16 x[], /* I Input signal */
- SKP_int16 a_Q12[ 2 ][ MAX_LPC_ORDER ],/* I AR coefs for each frame half */
- const SKP_int32 gains[ NB_SUBFR ], /* I Quantization gains */
- const SKP_int subfr_length, /* I Subframe length */
- const SKP_int LPC_order /* I LPC order */
-)
-{
- SKP_int offset, i, j, rshift, lz1, lz2;
- SKP_int16 *LPC_res_ptr, LPC_res[ ( MAX_FRAME_LENGTH + NB_SUBFR * MAX_LPC_ORDER ) / 2 ];
- const SKP_int16 *x_ptr;
- SKP_int16 S[ MAX_LPC_ORDER ];
- SKP_int32 tmp32;
-
- x_ptr = x;
- offset = LPC_order + subfr_length;
-
- /* Filter input to create the LPC residual for each frame half, and measure subframe energies */
- for( i = 0; i < 2; i++ ) {
- /* Calculate half frame LPC residual signal including preceeding samples */
- SKP_memset( S, 0, LPC_order * sizeof( SKP_int16 ) );
- SKP_Silk_LPC_analysis_filter( x_ptr, a_Q12[ i ], S, LPC_res, ( NB_SUBFR >> 1 ) * offset, LPC_order );
-
- /* Point to first subframe of the just calculated LPC residual signal */
- LPC_res_ptr = LPC_res + LPC_order;
- for( j = 0; j < ( NB_SUBFR >> 1 ); j++ ) {
- /* Measure subframe energy */
- SKP_Silk_sum_sqr_shift( &nrgs[ i * ( NB_SUBFR >> 1 ) + j ], &rshift, LPC_res_ptr, subfr_length );
-
- /* Set Q values for the measured energy */
- nrgsQ[ i * ( NB_SUBFR >> 1 ) + j ] = -rshift;
-
- /* Move to next subframe */
- LPC_res_ptr += offset;
- }
- /* Move to next frame half */
- x_ptr += ( NB_SUBFR >> 1 ) * offset;
- }
-
- /* Apply the squared subframe gains */
- for( i = 0; i < NB_SUBFR; i++ ) {
- /* Fully upscale gains and energies */
- lz1 = SKP_Silk_CLZ32( nrgs[ i ] ) - 1;
- lz2 = SKP_Silk_CLZ32( gains[ i ] ) - 1;
-
- tmp32 = SKP_LSHIFT32( gains[ i ], lz2 );
-
- /* Find squared gains */
- tmp32 = SKP_SMMUL( tmp32, tmp32 ); // Q( 2 * lz2 - 32 )
-
- /* Scale energies */
- nrgs[ i ] = SKP_SMMUL( tmp32, SKP_LSHIFT32( nrgs[ i ], lz1 ) ); // Q( nrgsQ[ i ] + lz1 + 2 * lz2 - 32 - 32 )
- nrgsQ[ i ] += lz1 + 2 * lz2 - 32 - 32;
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Copy and multiply a vector by a constant */
-void SKP_Silk_scale_copy_vector16(
- SKP_int16 *data_out,
- const SKP_int16 *data_in,
- SKP_int32 gain_Q16, /* (I): gain in Q16 */
- const SKP_int dataSize /* (I): length */
-)
-{
- SKP_int i;
- SKP_int32 tmp32;
-
- for( i = 0; i < dataSize; i++ ) {
- tmp32 = SKP_SMULWB( gain_Q16, data_in[ i ] );
- data_out[ i ] = (SKP_int16)SKP_CHECK_FIT16( tmp32 );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Multiply a vector by a constant */
-void SKP_Silk_scale_vector32_Q26_lshift_18(
- SKP_int32 *data1, /* (I/O): Q0/Q18 */
- SKP_int32 gain_Q26, /* (I): Q26 */
- SKP_int dataSize /* (I): length */
-)
-{
- SKP_int i;
-
- for( i = 0; i < dataSize; i++ ) {
- data1[ i ] = (SKP_int32)SKP_CHECK_FIT32( SKP_RSHIFT64( SKP_SMULL( data1[ i ], gain_Q26 ), 8 ) );// OUTPUT: Q18
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_schur.c *
- * *
- * Calculates the reflection coefficients from the correlation sequence *
- * *
- * Copyright 2008 (c), Skype Limited *
- * Date: 080103 *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Faster than schur64(), but much less accurate. */
-/* uses SMLAWB(), requiring armv5E and higher. */
-SKP_int32 SKP_Silk_schur( /* O: Returns residual energy */
- SKP_int16 *rc_Q15, /* O: reflection coefficients [order] Q15 */
- const SKP_int32 *c, /* I: correlations [order+1] */
- const SKP_int32 order /* I: prediction order */
-)
-{
- SKP_int k, n, lz;
- SKP_int32 C[ SKP_Silk_MAX_ORDER_LPC + 1 ][ 2 ];
- SKP_int32 Ctmp1, Ctmp2, rc_tmp_Q15;
-
- /* Get number of leading zeros */
- lz = SKP_Silk_CLZ32( c[ 0 ] );
-
- /* Copy correlations and adjust level to Q30 */
- if( lz < 2 ) {
- /* lz must be 1, so shift one to the right */
- for( k = 0; k < order + 1; k++ ) {
- C[ k ][ 0 ] = C[ k ][ 1 ] = SKP_RSHIFT( c[ k ], 1 );
- }
- } else if( lz > 2 ) {
- /* Shift to the left */
- lz -= 2;
- for( k = 0; k < order + 1; k++ ) {
- C[ k ][ 0 ] = C[ k ][ 1 ] = SKP_LSHIFT( c[k], lz );
- }
- } else {
- /* No need to shift */
- for( k = 0; k < order + 1; k++ ) {
- C[ k ][ 0 ] = C[ k ][ 1 ] = c[ k ];
- }
- }
-
- for( k = 0; k < order; k++ ) {
-
- /* Get reflection coefficient */
- rc_tmp_Q15 = -SKP_DIV32_16( C[ k + 1 ][ 0 ], SKP_max_32( SKP_RSHIFT( C[ 0 ][ 1 ], 15 ), 1 ) );
-
- /* Clip (shouldn't happen for properly conditioned inputs) */
- rc_tmp_Q15 = SKP_SAT16( rc_tmp_Q15 );
-
- /* Store */
- rc_Q15[ k ] = (SKP_int16)rc_tmp_Q15;
-
- /* Update correlations */
- for( n = 0; n < order - k; n++ ) {
- Ctmp1 = C[ n + k + 1 ][ 0 ];
- Ctmp2 = C[ n ][ 1 ];
- C[ n + k + 1 ][ 0 ] = SKP_SMLAWB( Ctmp1, SKP_LSHIFT( Ctmp2, 1 ), rc_tmp_Q15 );
- C[ n ][ 1 ] = SKP_SMLAWB( Ctmp2, SKP_LSHIFT( Ctmp1, 1 ), rc_tmp_Q15 );
- }
- }
-
- /* return residual energy */
- return C[0][1];
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_schur64.c *
- * *
- * Calculates the reflection coefficients from the correlation sequence *
- * using extra precision *
- * *
- * Copyright 2008 (c), Skype Limited *
- * Date: 080103 *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Slower than schur(), but more accurate. */
-/* Uses SMULL(), available on armv4 */
-SKP_int32 SKP_Silk_schur64( /* O: Returns residual energy */
- SKP_int32 rc_Q16[], /* O: Reflection coefficients [order] Q16 */
- const SKP_int32 c[], /* I: Correlations [order+1] */
- SKP_int32 order /* I: Prediction order */
-)
-{
- SKP_int k, n;
- SKP_int32 C[ SKP_Silk_MAX_ORDER_LPC + 1 ][ 2 ];
- SKP_int32 Ctmp1_Q30, Ctmp2_Q30, rc_tmp_Q31;
-
- /* Check for invalid input */
- if( c[ 0 ] <= 0 ) {
- SKP_memset( rc_Q16, 0, order * sizeof( SKP_int32 ) );
- return 0;
- }
-
- for( k = 0; k < order + 1; k++ ) {
- C[ k ][ 0 ] = C[ k ][ 1 ] = c[ k ];
- }
-
- for( k = 0; k < order; k++ ) {
- /* Get reflection coefficient: divide two Q30 values and get result in Q31 */
- rc_tmp_Q31 = SKP_DIV32_varQ( -C[ k + 1 ][ 0 ], C[ 0 ][ 1 ], 31 );
-
- /* Save the output */
- rc_Q16[ k ] = SKP_RSHIFT_ROUND( rc_tmp_Q31, 15 );
-
- /* Update correlations */
- for( n = 0; n < order - k; n++ ) {
- Ctmp1_Q30 = C[ n + k + 1 ][ 0 ];
- Ctmp2_Q30 = C[ n ][ 1 ];
-
- /* Multiply and add the highest int32 */
- C[ n + k + 1 ][ 0 ] = Ctmp1_Q30 + SKP_SMMUL( SKP_LSHIFT( Ctmp2_Q30, 1 ), rc_tmp_Q31 );
- C[ n ][ 1 ] = Ctmp2_Q30 + SKP_SMMUL( SKP_LSHIFT( Ctmp1_Q30, 1 ), rc_tmp_Q31 );
- }
- }
-
- return C[ 0 ][ 1 ];
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-#include "SKP_Silk_tuning_parameters.h"
-
-SKP_INLINE SKP_int SKP_Silk_setup_complexity(
- SKP_Silk_encoder_state *psEncC, /* I/O Pointer to Silk encoder state */
- SKP_int Complexity /* I Complexity (0->low; 1->medium; 2->high) */
-)
-{
- SKP_int ret = SKP_SILK_NO_ERROR;
-
- /* Check that settings are valid */
- if( LOW_COMPLEXITY_ONLY && Complexity != 0 ) {
- ret = SKP_SILK_ENC_INVALID_COMPLEXITY_SETTING;
- }
-
- /* Set encoding complexity */
- if( Complexity == 0 || LOW_COMPLEXITY_ONLY ) {
- /* Low complexity */
- psEncC->Complexity = 0;
- psEncC->pitchEstimationComplexity = PITCH_EST_COMPLEXITY_LC_MODE;
- psEncC->pitchEstimationThreshold_Q16 = SKP_FIX_CONST( FIND_PITCH_CORRELATION_THRESHOLD_LC_MODE, 16 );
- psEncC->pitchEstimationLPCOrder = 6;
- psEncC->shapingLPCOrder = 8;
- psEncC->la_shape = 3 * psEncC->fs_kHz;
- psEncC->nStatesDelayedDecision = 1;
- psEncC->useInterpolatedNLSFs = 0;
- psEncC->LTPQuantLowComplexity = 1;
- psEncC->NLSF_MSVQ_Survivors = MAX_NLSF_MSVQ_SURVIVORS_LC_MODE;
- psEncC->warping_Q16 = 0;
- } else if( Complexity == 1 ) {
- /* Medium complexity */
- psEncC->Complexity = 1;
- psEncC->pitchEstimationComplexity = PITCH_EST_COMPLEXITY_MC_MODE;
- psEncC->pitchEstimationThreshold_Q16 = SKP_FIX_CONST( FIND_PITCH_CORRELATION_THRESHOLD_MC_MODE, 16 );
- psEncC->pitchEstimationLPCOrder = 12;
- psEncC->shapingLPCOrder = 12;
- psEncC->la_shape = 5 * psEncC->fs_kHz;
- psEncC->nStatesDelayedDecision = 2;
- psEncC->useInterpolatedNLSFs = 0;
- psEncC->LTPQuantLowComplexity = 0;
- psEncC->NLSF_MSVQ_Survivors = MAX_NLSF_MSVQ_SURVIVORS_MC_MODE;
- psEncC->warping_Q16 = psEncC->fs_kHz * SKP_FIX_CONST( WARPING_MULTIPLIER, 16 );
- } else if( Complexity == 2 ) {
- /* High complexity */
- psEncC->Complexity = 2;
- psEncC->pitchEstimationComplexity = PITCH_EST_COMPLEXITY_HC_MODE;
- psEncC->pitchEstimationThreshold_Q16 = SKP_FIX_CONST( FIND_PITCH_CORRELATION_THRESHOLD_HC_MODE, 16 );
- psEncC->pitchEstimationLPCOrder = 16;
- psEncC->shapingLPCOrder = 16;
- psEncC->la_shape = 5 * psEncC->fs_kHz;
- psEncC->nStatesDelayedDecision = MAX_DEL_DEC_STATES;
- psEncC->useInterpolatedNLSFs = 1;
- psEncC->LTPQuantLowComplexity = 0;
- psEncC->NLSF_MSVQ_Survivors = MAX_NLSF_MSVQ_SURVIVORS;
- psEncC->warping_Q16 = psEncC->fs_kHz * SKP_FIX_CONST( WARPING_MULTIPLIER, 16 );
- } else {
- ret = SKP_SILK_ENC_INVALID_COMPLEXITY_SETTING;
- }
-
- /* Do not allow higher pitch estimation LPC order than predict LPC order */
- psEncC->pitchEstimationLPCOrder = SKP_min_int( psEncC->pitchEstimationLPCOrder, psEncC->predictLPCOrder );
- psEncC->shapeWinLength = 5 * psEncC->fs_kHz + 2 * psEncC->la_shape;
-
- SKP_assert( psEncC->pitchEstimationLPCOrder <= MAX_FIND_PITCH_LPC_ORDER );
- SKP_assert( psEncC->shapingLPCOrder <= MAX_SHAPE_LPC_ORDER );
- SKP_assert( psEncC->nStatesDelayedDecision <= MAX_DEL_DEC_STATES );
- SKP_assert( psEncC->warping_Q16 <= 32767 );
- SKP_assert( psEncC->la_shape <= LA_SHAPE_MAX );
- SKP_assert( psEncC->shapeWinLength <= SHAPE_LPC_WIN_MAX );
-
- return( ret );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main.h"
-
-/* shell coder; pulse-subframe length is hardcoded */
-
-SKP_INLINE void combine_pulses(
- SKP_int *out, /* O: combined pulses vector [len] */
- const SKP_int *in, /* I: input vector [2 * len] */
- const SKP_int len /* I: number of OUTPUT samples */
-)
-{
- SKP_int k;
- for( k = 0; k < len; k++ ) {
- out[ k ] = in[ 2 * k ] + in[ 2 * k + 1 ];
- }
-}
-
-SKP_INLINE void encode_split(
- SKP_Silk_range_coder_state *sRC, /* I/O: compressor data structure */
- const SKP_int p_child1, /* I: pulse amplitude of first child subframe */
- const SKP_int p, /* I: pulse amplitude of current subframe */
- const SKP_uint16 *shell_table /* I: table of shell cdfs */
-)
-{
- const SKP_uint16 *cdf;
-
- if( p > 0 ) {
- cdf = &shell_table[ SKP_Silk_shell_code_table_offsets[ p ] ];
- SKP_Silk_range_encoder( sRC, p_child1, cdf );
- }
-}
-
-SKP_INLINE void decode_split(
- SKP_int *p_child1, /* O: pulse amplitude of first child subframe */
- SKP_int *p_child2, /* O: pulse amplitude of second child subframe */
- SKP_Silk_range_coder_state *sRC, /* I/O: compressor data structure */
- const SKP_int p, /* I: pulse amplitude of current subframe */
- const SKP_uint16 *shell_table /* I: table of shell cdfs */
-)
-{
- SKP_int cdf_middle;
- const SKP_uint16 *cdf;
-
- if( p > 0 ) {
- cdf_middle = SKP_RSHIFT( p, 1 );
- cdf = &shell_table[ SKP_Silk_shell_code_table_offsets[ p ] ];
- SKP_Silk_range_decoder( p_child1, sRC, cdf, cdf_middle );
- p_child2[ 0 ] = p - p_child1[ 0 ];
- } else {
- p_child1[ 0 ] = 0;
- p_child2[ 0 ] = 0;
- }
-}
-
-/* Shell encoder, operates on one shell code frame of 16 pulses */
-void SKP_Silk_shell_encoder(
- SKP_Silk_range_coder_state *sRC, /* I/O compressor data structure */
- const SKP_int *pulses0 /* I data: nonnegative pulse amplitudes */
-)
-{
- SKP_int pulses1[ 8 ], pulses2[ 4 ], pulses3[ 2 ], pulses4[ 1 ];
-
- /* this function operates on one shell code frame of 16 pulses */
- SKP_assert( SHELL_CODEC_FRAME_LENGTH == 16 );
-
- /* tree representation per pulse-subframe */
- combine_pulses( pulses1, pulses0, 8 );
- combine_pulses( pulses2, pulses1, 4 );
- combine_pulses( pulses3, pulses2, 2 );
- combine_pulses( pulses4, pulses3, 1 );
-
- encode_split( sRC, pulses3[ 0 ], pulses4[ 0 ], SKP_Silk_shell_code_table3 );
-
- encode_split( sRC, pulses2[ 0 ], pulses3[ 0 ], SKP_Silk_shell_code_table2 );
-
- encode_split( sRC, pulses1[ 0 ], pulses2[ 0 ], SKP_Silk_shell_code_table1 );
- encode_split( sRC, pulses0[ 0 ], pulses1[ 0 ], SKP_Silk_shell_code_table0 );
- encode_split( sRC, pulses0[ 2 ], pulses1[ 1 ], SKP_Silk_shell_code_table0 );
-
- encode_split( sRC, pulses1[ 2 ], pulses2[ 1 ], SKP_Silk_shell_code_table1 );
- encode_split( sRC, pulses0[ 4 ], pulses1[ 2 ], SKP_Silk_shell_code_table0 );
- encode_split( sRC, pulses0[ 6 ], pulses1[ 3 ], SKP_Silk_shell_code_table0 );
-
- encode_split( sRC, pulses2[ 2 ], pulses3[ 1 ], SKP_Silk_shell_code_table2 );
-
- encode_split( sRC, pulses1[ 4 ], pulses2[ 2 ], SKP_Silk_shell_code_table1 );
- encode_split( sRC, pulses0[ 8 ], pulses1[ 4 ], SKP_Silk_shell_code_table0 );
- encode_split( sRC, pulses0[ 10 ], pulses1[ 5 ], SKP_Silk_shell_code_table0 );
-
- encode_split( sRC, pulses1[ 6 ], pulses2[ 3 ], SKP_Silk_shell_code_table1 );
- encode_split( sRC, pulses0[ 12 ], pulses1[ 6 ], SKP_Silk_shell_code_table0 );
- encode_split( sRC, pulses0[ 14 ], pulses1[ 7 ], SKP_Silk_shell_code_table0 );
-}
-
-
-/* Shell decoder, operates on one shell code frame of 16 pulses */
-void SKP_Silk_shell_decoder(
- SKP_int *pulses0, /* O data: nonnegative pulse amplitudes */
- SKP_Silk_range_coder_state *sRC, /* I/O compressor data structure */
- const SKP_int pulses4 /* I number of pulses per pulse-subframe */
-)
-{
- SKP_int pulses3[ 2 ], pulses2[ 4 ], pulses1[ 8 ];
-
- /* this function operates on one shell code frame of 16 pulses */
- SKP_assert( SHELL_CODEC_FRAME_LENGTH == 16 );
-
- decode_split( &pulses3[ 0 ], &pulses3[ 1 ], sRC, pulses4, SKP_Silk_shell_code_table3 );
-
- decode_split( &pulses2[ 0 ], &pulses2[ 1 ], sRC, pulses3[ 0 ], SKP_Silk_shell_code_table2 );
-
- decode_split( &pulses1[ 0 ], &pulses1[ 1 ], sRC, pulses2[ 0 ], SKP_Silk_shell_code_table1 );
- decode_split( &pulses0[ 0 ], &pulses0[ 1 ], sRC, pulses1[ 0 ], SKP_Silk_shell_code_table0 );
- decode_split( &pulses0[ 2 ], &pulses0[ 3 ], sRC, pulses1[ 1 ], SKP_Silk_shell_code_table0 );
-
- decode_split( &pulses1[ 2 ], &pulses1[ 3 ], sRC, pulses2[ 1 ], SKP_Silk_shell_code_table1 );
- decode_split( &pulses0[ 4 ], &pulses0[ 5 ], sRC, pulses1[ 2 ], SKP_Silk_shell_code_table0 );
- decode_split( &pulses0[ 6 ], &pulses0[ 7 ], sRC, pulses1[ 3 ], SKP_Silk_shell_code_table0 );
-
- decode_split( &pulses2[ 2 ], &pulses2[ 3 ], sRC, pulses3[ 1 ], SKP_Silk_shell_code_table2 );
-
- decode_split( &pulses1[ 4 ], &pulses1[ 5 ], sRC, pulses2[ 2 ], SKP_Silk_shell_code_table1 );
- decode_split( &pulses0[ 8 ], &pulses0[ 9 ], sRC, pulses1[ 4 ], SKP_Silk_shell_code_table0 );
- decode_split( &pulses0[ 10 ], &pulses0[ 11 ], sRC, pulses1[ 5 ], SKP_Silk_shell_code_table0 );
-
- decode_split( &pulses1[ 6 ], &pulses1[ 7 ], sRC, pulses2[ 3 ], SKP_Silk_shell_code_table1 );
- decode_split( &pulses0[ 12 ], &pulses0[ 13 ], sRC, pulses1[ 6 ], SKP_Silk_shell_code_table0 );
- decode_split( &pulses0[ 14 ], &pulses0[ 15 ], sRC, pulses1[ 7 ], SKP_Silk_shell_code_table0 );
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_sigm_Q15.c *
- * *
- * Approximate sigmoid function *
- * *
- * Copyright 2006 (c), Skype Limited *
- * Date: 060221 *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-/********************************/
-/* approximate sigmoid function */
-/********************************/
-/* fprintf(1, '%d, ', round(1024 * ([1 ./ (1 + exp(-(1:5))), 1] - 1 ./ (1 + exp(-(0:5)))))); */
-static const SKP_int32 sigm_LUT_slope_Q10[ 6 ] = {
- 237, 153, 73, 30, 12, 7
-};
-/* fprintf(1, '%d, ', round(32767 * 1 ./ (1 + exp(-(0:5))))); */
-static const SKP_int32 sigm_LUT_pos_Q15[ 6 ] = {
- 16384, 23955, 28861, 31213, 32178, 32548
-};
-/* fprintf(1, '%d, ', round(32767 * 1 ./ (1 + exp((0:5))))); */
-static const SKP_int32 sigm_LUT_neg_Q15[ 6 ] = {
- 16384, 8812, 3906, 1554, 589, 219
-};
-
-SKP_int SKP_Silk_sigm_Q15( SKP_int in_Q5 )
-{
- SKP_int ind;
-
- if( in_Q5 < 0 ) {
- /* Negative input */
- in_Q5 = -in_Q5;
- if( in_Q5 >= 6 * 32 ) {
- return 0; /* Clip */
- } else {
- /* Linear interpolation of look up table */
- ind = SKP_RSHIFT( in_Q5, 5 );
- return( sigm_LUT_neg_Q15[ ind ] - SKP_SMULBB( sigm_LUT_slope_Q10[ ind ], in_Q5 & 0x1F ) );
- }
- } else {
- /* Positive input */
- if( in_Q5 >= 6 * 32 ) {
- return 32767; /* clip */
- } else {
- /* Linear interpolation of look up table */
- ind = SKP_RSHIFT( in_Q5, 5 );
- return( sigm_LUT_pos_Q15[ ind ] + SKP_SMULBB( sigm_LUT_slope_Q10[ ind ], in_Q5 & 0x1F ) );
- }
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-#include "SKP_Silk_tuning_parameters.h"
-
-/*****************************/
-/* Internal function headers */
-/*****************************/
-
-typedef struct {
- SKP_int32 Q36_part;
- SKP_int32 Q48_part;
-} inv_D_t;
-
-/* Factorize square matrix A into LDL form */
-SKP_INLINE void SKP_Silk_LDL_factorize_FIX(
- SKP_int32 *A, /* I/O Pointer to Symetric Square Matrix */
- SKP_int M, /* I Size of Matrix */
- SKP_int32 *L_Q16, /* I/O Pointer to Square Upper triangular Matrix */
- inv_D_t *inv_D /* I/O Pointer to vector holding inverted diagonal elements of D */
-);
-
-/* Solve Lx = b, when L is lower triangular and has ones on the diagonal */
-SKP_INLINE void SKP_Silk_LS_SolveFirst_FIX(
- const SKP_int32 *L_Q16, /* I Pointer to Lower Triangular Matrix */
- SKP_int M, /* I Dim of Matrix equation */
- const SKP_int32 *b, /* I b Vector */
- SKP_int32 *x_Q16 /* O x Vector */
-);
-
-/* Solve L^t*x = b, where L is lower triangular with ones on the diagonal */
-SKP_INLINE void SKP_Silk_LS_SolveLast_FIX(
- const SKP_int32 *L_Q16, /* I Pointer to Lower Triangular Matrix */
- const SKP_int M, /* I Dim of Matrix equation */
- const SKP_int32 *b, /* I b Vector */
- SKP_int32 *x_Q16 /* O x Vector */
-);
-
-SKP_INLINE void SKP_Silk_LS_divide_Q16_FIX(
- SKP_int32 T[], /* I/O Numenator vector */
- inv_D_t *inv_D, /* I 1 / D vector */
- SKP_int M /* I dimension */
-);
-
-/* Solves Ax = b, assuming A is symmetric */
-void SKP_Silk_solve_LDL_FIX(
- SKP_int32 *A, /* I Pointer to symetric square matrix A */
- SKP_int M, /* I Size of matrix */
- const SKP_int32 *b, /* I Pointer to b vector */
- SKP_int32 *x_Q16 /* O Pointer to x solution vector */
-)
-{
- SKP_int32 L_Q16[ MAX_MATRIX_SIZE * MAX_MATRIX_SIZE ];
- SKP_int32 Y[ MAX_MATRIX_SIZE ];
- inv_D_t inv_D[ MAX_MATRIX_SIZE ];
-
- SKP_assert( M <= MAX_MATRIX_SIZE );
-
- /***************************************************
- Factorize A by LDL such that A = L*D*L',
- where L is lower triangular with ones on diagonal
- ****************************************************/
- SKP_Silk_LDL_factorize_FIX( A, M, L_Q16, inv_D );
-
- /****************************************************
- * substitute D*L'*x = Y. ie:
- L*D*L'*x = b => L*Y = b <=> Y = inv(L)*b
- ******************************************************/
- SKP_Silk_LS_SolveFirst_FIX( L_Q16, M, b, Y );
-
- /****************************************************
- D*L'*x = Y <=> L'*x = inv(D)*Y, because D is
- diagonal just multiply with 1/d_i
- ****************************************************/
- SKP_Silk_LS_divide_Q16_FIX( Y, inv_D, M );
-
- /****************************************************
- x = inv(L') * inv(D) * Y
- *****************************************************/
- SKP_Silk_LS_SolveLast_FIX( L_Q16, M, Y, x_Q16 );
-}
-
-SKP_INLINE void SKP_Silk_LDL_factorize_FIX(
- SKP_int32 *A, /* I Pointer to Symetric Square Matrix */
- SKP_int M, /* I Size of Matrix */
- SKP_int32 *L_Q16, /* I/O Pointer to Square Upper triangular Matrix */
- inv_D_t *inv_D /* I/O Pointer to vector holding inverted diagonal elements of D */
-)
-{
- SKP_int i, j, k, status, loop_count;
- const SKP_int32 *ptr1, *ptr2;
- SKP_int32 diag_min_value, tmp_32, err;
- SKP_int32 v_Q0[ MAX_MATRIX_SIZE ], D_Q0[ MAX_MATRIX_SIZE ];
- SKP_int32 one_div_diag_Q36, one_div_diag_Q40, one_div_diag_Q48;
-
- SKP_assert( M <= MAX_MATRIX_SIZE );
-
- status = 1;
- diag_min_value = SKP_max_32( SKP_SMMUL( SKP_ADD_SAT32( A[ 0 ], A[ SKP_SMULBB( M, M ) - 1 ] ), SKP_FIX_CONST( FIND_LTP_COND_FAC, 31 ) ), 1 << 9 );
- for( loop_count = 0; loop_count < M && status == 1; loop_count++ ) {
- status = 0;
- for( j = 0; j < M; j++ ) {
- ptr1 = matrix_adr( L_Q16, j, 0, M );
- tmp_32 = 0;
- for( i = 0; i < j; i++ ) {
- v_Q0[ i ] = SKP_SMULWW( D_Q0[ i ], ptr1[ i ] ); /* Q0 */
- tmp_32 = SKP_SMLAWW( tmp_32, v_Q0[ i ], ptr1[ i ] ); /* Q0 */
- }
- tmp_32 = SKP_SUB32( matrix_ptr( A, j, j, M ), tmp_32 );
-
- if( tmp_32 < diag_min_value ) {
- tmp_32 = SKP_SUB32( SKP_SMULBB( loop_count + 1, diag_min_value ), tmp_32 );
- /* Matrix not positive semi-definite, or ill conditioned */
- for( i = 0; i < M; i++ ) {
- matrix_ptr( A, i, i, M ) = SKP_ADD32( matrix_ptr( A, i, i, M ), tmp_32 );
- }
- status = 1;
- break;
- }
- D_Q0[ j ] = tmp_32; /* always < max(Correlation) */
-
- /* two-step division */
- one_div_diag_Q36 = SKP_INVERSE32_varQ( tmp_32, 36 ); /* Q36 */
- one_div_diag_Q40 = SKP_LSHIFT( one_div_diag_Q36, 4 ); /* Q40 */
- err = SKP_SUB32( 1 << 24, SKP_SMULWW( tmp_32, one_div_diag_Q40 ) ); /* Q24 */
- one_div_diag_Q48 = SKP_SMULWW( err, one_div_diag_Q40 ); /* Q48 */
-
- /* Save 1/Ds */
- inv_D[ j ].Q36_part = one_div_diag_Q36;
- inv_D[ j ].Q48_part = one_div_diag_Q48;
-
- matrix_ptr( L_Q16, j, j, M ) = 65536; /* 1.0 in Q16 */
- ptr1 = matrix_adr( A, j, 0, M );
- ptr2 = matrix_adr( L_Q16, j + 1, 0, M );
- for( i = j + 1; i < M; i++ ) {
- tmp_32 = 0;
- for( k = 0; k < j; k++ ) {
- tmp_32 = SKP_SMLAWW( tmp_32, v_Q0[ k ], ptr2[ k ] ); /* Q0 */
- }
- tmp_32 = SKP_SUB32( ptr1[ i ], tmp_32 ); /* always < max(Correlation) */
-
- /* tmp_32 / D_Q0[j] : Divide to Q16 */
- matrix_ptr( L_Q16, i, j, M ) = SKP_ADD32( SKP_SMMUL( tmp_32, one_div_diag_Q48 ),
- SKP_RSHIFT( SKP_SMULWW( tmp_32, one_div_diag_Q36 ), 4 ) );
-
- /* go to next column */
- ptr2 += M;
- }
- }
- }
-
- SKP_assert( status == 0 );
-}
-
-SKP_INLINE void SKP_Silk_LS_divide_Q16_FIX(
- SKP_int32 T[], /* I/O Numenator vector */
- inv_D_t *inv_D, /* I 1 / D vector */
- SKP_int M /* I Order */
-)
-{
- SKP_int i;
- SKP_int32 tmp_32;
- SKP_int32 one_div_diag_Q36, one_div_diag_Q48;
-
- for( i = 0; i < M; i++ ) {
- one_div_diag_Q36 = inv_D[ i ].Q36_part;
- one_div_diag_Q48 = inv_D[ i ].Q48_part;
-
- tmp_32 = T[ i ];
- T[ i ] = SKP_ADD32( SKP_SMMUL( tmp_32, one_div_diag_Q48 ), SKP_RSHIFT( SKP_SMULWW( tmp_32, one_div_diag_Q36 ), 4 ) );
- }
-}
-
-/* Solve Lx = b, when L is lower triangular and has ones on the diagonal */
-SKP_INLINE void SKP_Silk_LS_SolveFirst_FIX(
- const SKP_int32 *L_Q16, /* I Pointer to Lower Triangular Matrix */
- SKP_int M, /* I Dim of Matrix equation */
- const SKP_int32 *b, /* I b Vector */
- SKP_int32 *x_Q16 /* O x Vector */
-)
-{
- SKP_int i, j;
- const SKP_int32 *ptr32;
- SKP_int32 tmp_32;
-
- for( i = 0; i < M; i++ ) {
- ptr32 = matrix_adr( L_Q16, i, 0, M );
- tmp_32 = 0;
- for( j = 0; j < i; j++ ) {
- tmp_32 = SKP_SMLAWW( tmp_32, ptr32[ j ], x_Q16[ j ] );
- }
- x_Q16[ i ] = SKP_SUB32( b[ i ], tmp_32 );
- }
-}
-
-/* Solve L^t*x = b, where L is lower triangular with ones on the diagonal */
-SKP_INLINE void SKP_Silk_LS_SolveLast_FIX(
- const SKP_int32 *L_Q16, /* I Pointer to Lower Triangular Matrix */
- const SKP_int M, /* I Dim of Matrix equation */
- const SKP_int32 *b, /* I b Vector */
- SKP_int32 *x_Q16 /* O x Vector */
-)
-{
- SKP_int i, j;
- const SKP_int32 *ptr32;
- SKP_int32 tmp_32;
-
- for( i = M - 1; i >= 0; i-- ) {
- ptr32 = matrix_adr( L_Q16, 0, i, M );
- tmp_32 = 0;
- for( j = M - 1; j > i; j-- ) {
- tmp_32 = SKP_SMLAWW( tmp_32, ptr32[ SKP_SMULBB( j, M ) ], x_Q16[ j ] );
- }
- x_Q16[ i ] = SKP_SUB32( b[ i ], tmp_32 );
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* Insertion sort (fast for already almost sorted arrays): */
-/* Best case: O(n) for an already sorted array */
-/* Worst case: O(n^2) for an inversely sorted array */
-/* */
-/* Shell short: http://en.wikipedia.org/wiki/Shell_sort */
-
-#include "SKP_Silk_SigProc_FIX.h"
-
-void SKP_Silk_insertion_sort_increasing(
- SKP_int32 *a, /* I/O: Unsorted / Sorted vector */
- SKP_int *index, /* O: Index vector for the sorted elements */
- const SKP_int L, /* I: Vector length */
- const SKP_int K /* I: Number of correctly sorted output positions */
-)
-{
- SKP_int32 value;
- SKP_int i, j;
-
- /* Safety checks */
- SKP_assert( K > 0 );
- SKP_assert( L > 0 );
- SKP_assert( L >= K );
-
- /* Write start indices in index vector */
- for( i = 0; i < K; i++ ) {
- index[ i ] = i;
- }
-
- /* Sort vector elements by value, increasing order */
- for( i = 1; i < K; i++ ) {
- value = a[ i ];
- for( j = i - 1; ( j >= 0 ) && ( value < a[ j ] ); j-- ) {
- a[ j + 1 ] = a[ j ]; /* Shift value */
- index[ j + 1 ] = index[ j ]; /* Shift index */
- }
- a[ j + 1 ] = value; /* Write value */
- index[ j + 1 ] = i; /* Write index */
- }
-
- /* If less than L values are asked for, check the remaining values, */
- /* but only spend CPU to ensure that the K first values are correct */
- for( i = K; i < L; i++ ) {
- value = a[ i ];
- if( value < a[ K - 1 ] ) {
- for( j = K - 2; ( j >= 0 ) && ( value < a[ j ] ); j-- ) {
- a[ j + 1 ] = a[ j ]; /* Shift value */
- index[ j + 1 ] = index[ j ]; /* Shift index */
- }
- a[ j + 1 ] = value; /* Write value */
- index[ j + 1 ] = i; /* Write index */
- }
- }
-}
-
-void SKP_Silk_insertion_sort_decreasing_int16(
- SKP_int16 *a, /* I/O: Unsorted / Sorted vector */
- SKP_int *index, /* O: Index vector for the sorted elements */
- const SKP_int L, /* I: Vector length */
- const SKP_int K /* I: Number of correctly sorted output positions */
-)
-{
- SKP_int i, j;
- SKP_int value;
-
- /* Safety checks */
- SKP_assert( K > 0 );
- SKP_assert( L > 0 );
- SKP_assert( L >= K );
-
- /* Write start indices in index vector */
- for( i = 0; i < K; i++ ) {
- index[ i ] = i;
- }
-
- /* Sort vector elements by value, decreasing order */
- for( i = 1; i < K; i++ ) {
- value = a[ i ];
- for( j = i - 1; ( j >= 0 ) && ( value > a[ j ] ); j-- ) {
- a[ j + 1 ] = a[ j ]; /* Shift value */
- index[ j + 1 ] = index[ j ]; /* Shift index */
- }
- a[ j + 1 ] = value; /* Write value */
- index[ j + 1 ] = i; /* Write index */
- }
-
- /* If less than L values are asked for, check the remaining values, */
- /* but only spend CPU to ensure that the K first values are correct */
- for( i = K; i < L; i++ ) {
- value = a[ i ];
- if( value > a[ K - 1 ] ) {
- for( j = K - 2; ( j >= 0 ) && ( value > a[ j ] ); j-- ) {
- a[ j + 1 ] = a[ j ]; /* Shift value */
- index[ j + 1 ] = index[ j ]; /* Shift index */
- }
- a[ j + 1 ] = value; /* Write value */
- index[ j + 1 ] = i; /* Write index */
- }
- }
-}
-
-void SKP_Silk_insertion_sort_increasing_all_values(
- SKP_int *a, /* I/O: Unsorted / Sorted vector */
- const SKP_int L /* I: Vector length */
-)
-{
- SKP_int value;
- SKP_int i, j;
-
- /* Safety checks */
- SKP_assert( L > 0 );
-
- /* Sort vector elements by value, increasing order */
- for( i = 1; i < L; i++ ) {
- value = a[ i ];
- for( j = i - 1; ( j >= 0 ) && ( value < a[ j ] ); j-- ) {
- a[ j + 1 ] = a[ j ]; /* Shift value */
- }
- a[ j + 1 ] = value; /* Write value */
- }
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_STRUCTS_H
-#define SKP_SILK_STRUCTS_H
-
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_SigProc_FIX.h"
-#include "SKP_Silk_define.h"
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-
-/************************************/
-/* Noise shaping quantization state */
-/************************************/
-typedef struct {
- SKP_int16 xq[ 2 * MAX_FRAME_LENGTH ]; /* Buffer for quantized output signal */
- SKP_int32 sLTP_shp_Q10[ 2 * MAX_FRAME_LENGTH ];
- SKP_int32 sLPC_Q14[ MAX_FRAME_LENGTH / NB_SUBFR + NSQ_LPC_BUF_LENGTH ];
- SKP_int32 sAR2_Q14[ MAX_SHAPE_LPC_ORDER ];
- SKP_int32 sLF_AR_shp_Q12;
- SKP_int lagPrev;
- SKP_int sLTP_buf_idx;
- SKP_int sLTP_shp_buf_idx;
- SKP_int32 rand_seed;
- SKP_int32 prev_inv_gain_Q16;
- SKP_int rewhite_flag;
-} SKP_Silk_nsq_state; /* FIX*/
-
-/* Struct for Low BitRate Redundant (LBRR) information */
-typedef struct {
- SKP_uint8 payload[ MAX_ARITHM_BYTES ];
- SKP_int nBytes; /* Number of bytes in payload */
- SKP_int usage; /* Tells how the payload should be used as FEC */
-} SKP_SILK_LBRR_struct;
-
-/********************************/
-/* VAD state */
-/********************************/
-typedef struct {
- SKP_int32 AnaState[ 2 ]; /* Analysis filterbank state: 0-8 kHz */
- SKP_int32 AnaState1[ 2 ]; /* Analysis filterbank state: 0-4 kHz */
- SKP_int32 AnaState2[ 2 ]; /* Analysis filterbank state: 0-2 kHz */
- SKP_int32 XnrgSubfr[ VAD_N_BANDS ]; /* Subframe energies */
- SKP_int32 NrgRatioSmth_Q8[ VAD_N_BANDS ]; /* Smoothed energy level in each band */
- SKP_int16 HPstate; /* State of differentiator in the lowest band */
- SKP_int32 NL[ VAD_N_BANDS ]; /* Noise energy level in each band */
- SKP_int32 inv_NL[ VAD_N_BANDS ]; /* Inverse noise energy level in each band */
- SKP_int32 NoiseLevelBias[ VAD_N_BANDS ]; /* Noise level estimator bias/offset */
- SKP_int32 counter; /* Frame counter used in the initial phase */
-} SKP_Silk_VAD_state;
-
-/*******************************/
-/* Range encoder/decoder state */
-/*******************************/
-typedef struct {
- SKP_int32 bufferLength;
- SKP_int32 bufferIx;
- SKP_uint32 base_Q32;
- SKP_uint32 range_Q16;
- SKP_int32 error;
- SKP_uint8 buffer[ MAX_ARITHM_BYTES ]; /* Buffer containing payload */
-} SKP_Silk_range_coder_state;
-
-/* Input frequency range detection struct */
-typedef struct {
- SKP_int32 S_HP_8_kHz[ NB_SOS ][ 2 ]; /* HP filter State */
- SKP_int32 ConsecSmplsAboveThres;
- SKP_int32 ActiveSpeech_ms; /* Accumulated time with active speech */
- SKP_int SWB_detected; /* Flag to indicate SWB input */
- SKP_int WB_detected; /* Flag to indicate WB input */
-} SKP_Silk_detect_SWB_state;
-
-#if SWITCH_TRANSITION_FILTERING
-/* Variable cut-off low-pass filter state */
-typedef struct {
- SKP_int32 In_LP_State[ 2 ]; /* Low pass filter state */
- SKP_int32 transition_frame_no; /* Counter which is mapped to a cut-off frequency */
- SKP_int mode; /* Operating mode, 0: switch down, 1: switch up */
-} SKP_Silk_LP_state;
-#endif
-
-/* Structure for one stage of MSVQ */
-typedef struct {
- const SKP_int32 nVectors;
- const SKP_int16 *CB_NLSF_Q15;
- const SKP_int16 *Rates_Q5;
-} SKP_Silk_NLSF_CBS;
-
-/* Structure containing NLSF MSVQ codebook */
-typedef struct {
- const SKP_int32 nStages;
-
- /* Fields for (de)quantizing */
- const SKP_Silk_NLSF_CBS *CBStages;
- const SKP_int *NDeltaMin_Q15;
-
- /* Fields for arithmetic (de)coding */
- const SKP_uint16 *CDF;
- const SKP_uint16 * const *StartPtr;
- const SKP_int *MiddleIx;
-} SKP_Silk_NLSF_CB_struct;
-
-/********************************/
-/* Encoder state */
-/********************************/
-typedef struct {
- SKP_Silk_range_coder_state sRC; /* Range coder state */
- SKP_Silk_range_coder_state sRC_LBRR; /* Range coder state (for low bitrate redundancy) */
-#if HIGH_PASS_INPUT
- SKP_int32 In_HP_State[ 2 ]; /* High pass filter state */
-#endif
-#if SWITCH_TRANSITION_FILTERING
- SKP_Silk_LP_state sLP; /* Low pass filter state */
-#endif
- SKP_Silk_VAD_state sVAD; /* Voice activity detector state */
-
- SKP_int LBRRprevLastGainIndex;
- SKP_int prev_sigtype;
- SKP_int typeOffsetPrev; /* Previous signal type and quantization offset */
- SKP_int prevLag;
- SKP_int prev_lagIndex;
- SKP_int32 API_fs_Hz; /* API sampling frequency (Hz) */
- SKP_int32 prev_API_fs_Hz; /* Previous API sampling frequency (Hz) */
- SKP_int maxInternal_fs_kHz; /* Maximum internal sampling frequency (kHz) */
- SKP_int fs_kHz; /* Internal sampling frequency (kHz) */
- SKP_int fs_kHz_changed; /* Did we switch yet? */
- SKP_int frame_length; /* Frame length (samples) */
- SKP_int subfr_length; /* Subframe length (samples) */
- SKP_int la_pitch; /* Look-ahead for pitch analysis (samples) */
- SKP_int la_shape; /* Look-ahead for noise shape analysis (samples) */
- SKP_int shapeWinLength; /* Window length for noise shape analysis (samples) */
- SKP_int32 TargetRate_bps; /* Target bitrate (bps) */
- SKP_int PacketSize_ms; /* Number of milliseconds to put in each packet */
- SKP_int PacketLoss_perc; /* Packet loss rate measured by farend */
- SKP_int32 frameCounter;
- SKP_int Complexity; /* Complexity setting: 0-> low; 1-> medium; 2->high */
- SKP_int nStatesDelayedDecision; /* Number of states in delayed decision quantization */
- SKP_int useInterpolatedNLSFs; /* Flag for using NLSF interpolation */
- SKP_int shapingLPCOrder; /* Filter order for noise shaping filters */
- SKP_int predictLPCOrder; /* Filter order for prediction filters */
- SKP_int pitchEstimationComplexity; /* Complexity level for pitch estimator */
- SKP_int pitchEstimationLPCOrder; /* Whitening filter order for pitch estimator */
- SKP_int32 pitchEstimationThreshold_Q16; /* Threshold for pitch estimator */
- SKP_int LTPQuantLowComplexity; /* Flag for low complexity LTP quantization */
- SKP_int NLSF_MSVQ_Survivors; /* Number of survivors in NLSF MSVQ */
- SKP_int first_frame_after_reset; /* Flag for deactivating NLSF interp. and fluc. reduction after resets */
- SKP_int controlled_since_last_payload; /* Flag for ensuring codec_control only runs once per packet */
- SKP_int warping_Q16; /* Warping parameter for warped noise shaping */
-
- /* Input/output buffering */
- SKP_int16 inputBuf[ MAX_FRAME_LENGTH ]; /* buffer containin input signal */
- SKP_int inputBufIx;
- SKP_int nFramesInPayloadBuf; /* number of frames sitting in outputBuf */
- SKP_int nBytesInPayloadBuf; /* number of bytes sitting in outputBuf */
-
- /* Parameters For LTP scaling Control */
- SKP_int frames_since_onset;
-
- const SKP_Silk_NLSF_CB_struct *psNLSF_CB[ 2 ]; /* Pointers to voiced/unvoiced NLSF codebooks */
-
- /* Struct for Inband LBRR */
- SKP_SILK_LBRR_struct LBRR_buffer[ MAX_LBRR_DELAY ];
- SKP_int oldest_LBRR_idx;
- SKP_int useInBandFEC; /* Saves the API setting for query */
- SKP_int LBRR_enabled;
- SKP_int LBRR_GainIncreases; /* Number of shifts to Gains to get LBRR rate Voiced frames */
-
- /* Bitrate control */
- SKP_int32 bitrateDiff; /* Accumulated diff. between the target bitrate and the switch bitrates */
- SKP_int32 bitrate_threshold_up; /* Threshold for switching to a higher internal sample frequency */
- SKP_int32 bitrate_threshold_down; /* Threshold for switching to a lower internal sample frequency */
-
- SKP_Silk_resampler_state_struct resampler_state;
-
- /* DTX */
- SKP_int noSpeechCounter; /* Counts concecutive nonactive frames, used by DTX */
- SKP_int useDTX; /* Flag to enable DTX */
- SKP_int inDTX; /* Flag to signal DTX period */
- SKP_int vadFlag; /* Flag to indicate Voice Activity */
-
- /* Struct for detecting SWB input */
- SKP_Silk_detect_SWB_state sSWBdetect;
-
-
- /* Buffers */
- SKP_int8 q[ MAX_FRAME_LENGTH ]; /* pulse signal buffer */
- SKP_int8 q_LBRR[ MAX_FRAME_LENGTH ]; /* pulse signal buffer */
-
-} SKP_Silk_encoder_state;
-
-
-/************************/
-/* Encoder control */
-/************************/
-typedef struct {
- /* Quantization indices */
- SKP_int lagIndex;
- SKP_int contourIndex;
- SKP_int PERIndex;
- SKP_int LTPIndex[ NB_SUBFR ];
- SKP_int NLSFIndices[ NLSF_MSVQ_MAX_CB_STAGES ]; /* NLSF path of quantized LSF vector */
- SKP_int NLSFInterpCoef_Q2;
- SKP_int GainsIndices[ NB_SUBFR ];
- SKP_int32 Seed;
- SKP_int LTP_scaleIndex;
- SKP_int RateLevelIndex;
- SKP_int QuantOffsetType;
- SKP_int sigtype;
-
- /* Prediction and coding parameters */
- SKP_int pitchL[ NB_SUBFR ];
-
- SKP_int LBRR_usage; /* Low bitrate redundancy usage */
-} SKP_Silk_encoder_control;
-
-/* Struct for Packet Loss Concealment */
-typedef struct {
- SKP_int32 pitchL_Q8; /* Pitch lag to use for voiced concealment */
- SKP_int16 LTPCoef_Q14[ LTP_ORDER ]; /* LTP coeficients to use for voiced concealment */
- SKP_int16 prevLPC_Q12[ MAX_LPC_ORDER ];
- SKP_int last_frame_lost; /* Was previous frame lost */
- SKP_int32 rand_seed; /* Seed for unvoiced signal generation */
- SKP_int16 randScale_Q14; /* Scaling of unvoiced random signal */
- SKP_int32 conc_energy;
- SKP_int conc_energy_shift;
- SKP_int16 prevLTP_scale_Q14;
- SKP_int32 prevGain_Q16[ NB_SUBFR ];
- SKP_int fs_kHz;
-} SKP_Silk_PLC_struct;
-
-/* Struct for CNG */
-typedef struct {
- SKP_int32 CNG_exc_buf_Q10[ MAX_FRAME_LENGTH ];
- SKP_int CNG_smth_NLSF_Q15[ MAX_LPC_ORDER ];
- SKP_int32 CNG_synth_state[ MAX_LPC_ORDER ];
- SKP_int32 CNG_smth_Gain_Q16;
- SKP_int32 rand_seed;
- SKP_int fs_kHz;
-} SKP_Silk_CNG_struct;
-
-/********************************/
-/* Decoder state */
-/********************************/
-typedef struct {
- SKP_Silk_range_coder_state sRC; /* Range coder state */
- SKP_int32 prev_inv_gain_Q16;
- SKP_int32 sLTP_Q16[ 2 * MAX_FRAME_LENGTH ];
- SKP_int32 sLPC_Q14[ MAX_FRAME_LENGTH / NB_SUBFR + MAX_LPC_ORDER ];
- SKP_int32 exc_Q10[ MAX_FRAME_LENGTH ];
- SKP_int32 res_Q10[ MAX_FRAME_LENGTH ];
- SKP_int16 outBuf[ 2 * MAX_FRAME_LENGTH ]; /* Buffer for output signal */
- SKP_int lagPrev; /* Previous Lag */
- SKP_int LastGainIndex; /* Previous gain index */
- SKP_int LastGainIndex_EnhLayer; /* Previous gain index */
- SKP_int typeOffsetPrev; /* Previous signal type and quantization offset */
- SKP_int32 HPState[ DEC_HP_ORDER ]; /* HP filter state */
- const SKP_int16 *HP_A; /* HP filter AR coefficients */
- const SKP_int16 *HP_B; /* HP filter MA coefficients */
- SKP_int fs_kHz; /* Sampling frequency in kHz */
- SKP_int32 prev_API_sampleRate; /* Previous API sample frequency (Hz) */
- SKP_int frame_length; /* Frame length (samples) */
- SKP_int subfr_length; /* Subframe length (samples) */
- SKP_int LPC_order; /* LPC order */
- SKP_int prevNLSF_Q15[ MAX_LPC_ORDER ]; /* Used to interpolate LSFs */
- SKP_int first_frame_after_reset; /* Flag for deactivating NLSF interp. and fluc. reduction after resets */
-
- /* For buffering payload in case of more frames per packet */
- SKP_int nBytesLeft;
- SKP_int nFramesDecoded;
- SKP_int nFramesInPacket;
- SKP_int moreInternalDecoderFrames;
- SKP_int FrameTermination;
-
- SKP_Silk_resampler_state_struct resampler_state;
-
- const SKP_Silk_NLSF_CB_struct *psNLSF_CB[ 2 ]; /* Pointers to voiced/unvoiced NLSF codebooks */
-
- /* Parameters used to investigate if inband FEC is used */
- SKP_int vadFlag;
- SKP_int no_FEC_counter; /* Counts number of frames wo inband FEC */
- SKP_int inband_FEC_offset; /* 0: no FEC, 1: FEC with 1 packet offset, 2: FEC w 2 packets offset */
-
- /* CNG state */
- SKP_Silk_CNG_struct sCNG;
-
- /* Stuff used for PLC */
- SKP_int lossCnt;
- SKP_int prev_sigtype; /* Previous sigtype */
-
- SKP_Silk_PLC_struct sPLC;
-
-
-
-} SKP_Silk_decoder_state;
-
-/************************/
-/* Decoder control */
-/************************/
-typedef struct {
- /* prediction and coding parameters */
- SKP_int pitchL[ NB_SUBFR ];
- SKP_int32 Gains_Q16[ NB_SUBFR ];
- SKP_int32 Seed;
- /* holds interpolated and final coefficients, 4-byte aligned */
- SKP_DWORD_ALIGN SKP_int16 PredCoef_Q12[ 2 ][ MAX_LPC_ORDER ];
- SKP_int16 LTPCoef_Q14[ LTP_ORDER * NB_SUBFR ];
- SKP_int LTP_scale_Q14;
-
- /* quantization indices */
- SKP_int PERIndex;
- SKP_int RateLevelIndex;
- SKP_int QuantOffsetType;
- SKP_int sigtype;
- SKP_int NLSFInterpCoef_Q2;
-} SKP_Silk_decoder_control;
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_STRUCTS_FIX_H
-#define SKP_SILK_STRUCTS_FIX_H
-
-#include "SKP_Silk_typedef.h"
-#include "SKP_Silk_main.h"
-#include "SKP_Silk_structs.h"
-
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-/********************************/
-/* Noise shaping analysis state */
-/********************************/
-typedef struct {
- SKP_int LastGainIndex;
- SKP_int32 HarmBoost_smth_Q16;
- SKP_int32 HarmShapeGain_smth_Q16;
- SKP_int32 Tilt_smth_Q16;
-} SKP_Silk_shape_state_FIX;
-
-/********************************/
-/* Prefilter state */
-/********************************/
-typedef struct {
- SKP_int16 sLTP_shp[ LTP_BUF_LENGTH ];
- SKP_int32 sAR_shp[ MAX_SHAPE_LPC_ORDER + 1 ];
- SKP_int sLTP_shp_buf_idx;
- SKP_int32 sLF_AR_shp_Q12;
- SKP_int32 sLF_MA_shp_Q12;
- SKP_int sHarmHP;
- SKP_int32 rand_seed;
- SKP_int lagPrev;
-} SKP_Silk_prefilter_state_FIX;
-
-/*****************************/
-/* Prediction analysis state */
-/*****************************/
-typedef struct {
- SKP_int pitch_LPC_win_length;
- SKP_int min_pitch_lag; /* Lowest possible pitch lag (samples) */
- SKP_int max_pitch_lag; /* Highest possible pitch lag (samples) */
- SKP_int prev_NLSFq_Q15[ MAX_LPC_ORDER ]; /* Previously quantized NLSF vector */
-} SKP_Silk_predict_state_FIX;
-
-
-/********************************/
-/* Encoder state FIX */
-/********************************/
-typedef struct {
- SKP_Silk_encoder_state sCmn; /* Common struct, shared with floating-point code */
-
-#if HIGH_PASS_INPUT
- SKP_int32 variable_HP_smth1_Q15; /* State of first smoother */
- SKP_int32 variable_HP_smth2_Q15; /* State of second smoother */
-#endif
- SKP_Silk_shape_state_FIX sShape; /* Shape state */
- SKP_Silk_prefilter_state_FIX sPrefilt; /* Prefilter State */
- SKP_Silk_predict_state_FIX sPred; /* Prediction state */
- SKP_Silk_nsq_state sNSQ; /* Noise Shape Quantizer State */
- SKP_Silk_nsq_state sNSQ_LBRR; /* Noise Shape Quantizer State ( for low bitrate redundancy ) */
-
- /* Buffer for find pitch and noise shape analysis */
- SKP_DWORD_ALIGN SKP_int16 x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];
- SKP_int LTPCorr_Q15; /* Normalized correlation from pitch lag estimator */
- SKP_int mu_LTP_Q8; /* Rate-distortion tradeoff in LTP quantization */
- SKP_int32 SNR_dB_Q7; /* Quality setting */
- SKP_int32 avgGain_Q16; /* average gain during active speech */
- SKP_int32 avgGain_Q16_one_bit_per_sample; /* average gain during active speech */
- SKP_int BufferedInChannel_ms; /* Simulated number of ms buffer because of exceeded TargetRate_bps */
- SKP_int speech_activity_Q8; /* Speech activity in Q8 */
-
- /* Parameters For LTP scaling Control */
- SKP_int prevLTPredCodGain_Q7;
- SKP_int HPLTPredCodGain_Q7;
-
- SKP_int32 inBandFEC_SNR_comp_Q8; /* Compensation to SNR_dB when using inband FEC Voiced */
-
-} SKP_Silk_encoder_state_FIX;
-
-/************************/
-/* Encoder control FIX */
-/************************/
-typedef struct {
- SKP_Silk_encoder_control sCmn; /* Common struct, shared with floating-point code */
-
- /* Prediction and coding parameters */
- SKP_int32 Gains_Q16[ NB_SUBFR ];
- SKP_DWORD_ALIGN SKP_int16 PredCoef_Q12[ 2 ][ MAX_LPC_ORDER ];
- SKP_int16 LTPCoef_Q14[ LTP_ORDER * NB_SUBFR ];
- SKP_int LTP_scale_Q14;
-
- /* Noise shaping parameters */
- /* Testing */
- SKP_DWORD_ALIGN SKP_int16 AR1_Q13[ NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
- SKP_DWORD_ALIGN SKP_int16 AR2_Q13[ NB_SUBFR * MAX_SHAPE_LPC_ORDER ];
- SKP_int32 LF_shp_Q14[ NB_SUBFR ]; /* Packs two int16 coefficients per int32 value */
- SKP_int GainsPre_Q14[ NB_SUBFR ];
- SKP_int HarmBoost_Q14[ NB_SUBFR ];
- SKP_int Tilt_Q14[ NB_SUBFR ];
- SKP_int HarmShapeGain_Q14[ NB_SUBFR ];
- SKP_int Lambda_Q10;
- SKP_int input_quality_Q14;
- SKP_int coding_quality_Q14;
- SKP_int32 pitch_freq_low_Hz;
- SKP_int current_SNR_dB_Q7;
-
- /* measures */
- SKP_int sparseness_Q8;
- SKP_int32 predGain_Q16;
- SKP_int LTPredCodGain_Q7;
- SKP_int input_quality_bands_Q15[ VAD_N_BANDS ];
- SKP_int input_tilt_Q15;
- SKP_int32 ResNrg[ NB_SUBFR ]; /* Residual energy per subframe */
- SKP_int ResNrgQ[ NB_SUBFR ]; /* Q domain for the residual energy > 0 */
-
-} SKP_Silk_encoder_control_FIX;
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/* *
- * SKP_Silk_sum_sqr_shift.c *
- * *
- * compute number of bits to right shift the sum of squares of a vector *
- * of int16s to make it fit in an int32 *
- * *
- * Copyright 2006-2008 (c), Skype Limited *
- * */
-#include "SKP_Silk_SigProc_FIX.h"
-/* Compute number of bits to right shift the sum of squares of a vector */
-/* of int16s to make it fit in an int32 */
-void SKP_Silk_sum_sqr_shift(
- SKP_int32 *energy, /* O Energy of x, after shifting to the right */
- SKP_int *shift, /* O Number of bits right shift applied to energy */
- const SKP_int16 *x, /* I Input vector */
- SKP_int len /* I Length of input vector */
-)
-{
- SKP_int i, shft;
- SKP_int32 in32, nrg_tmp, nrg;
-
- if( (SKP_int32)( (SKP_int_ptr_size)x & 2 ) != 0 ) {
- /* Input is not 4-byte aligned */
- nrg = SKP_SMULBB( x[ 0 ], x[ 0 ] );
- i = 1;
- } else {
- nrg = 0;
- i = 0;
- }
- shft = 0;
- len--;
- while( i < len ) {
- /* Load two values at once */
- in32 = *( (SKP_int32 *)&x[ i ] );
- nrg = SKP_SMLABB_ovflw( nrg, in32, in32 );
- nrg = SKP_SMLATT_ovflw( nrg, in32, in32 );
- i += 2;
- if( nrg < 0 ) {
- /* Scale down */
- nrg = (SKP_int32)SKP_RSHIFT_uint( (SKP_uint32)nrg, 2 );
- shft = 2;
- break;
- }
- }
- for( ; i < len; i += 2 ) {
- /* Load two values at once */
- in32 = *( (SKP_int32 *)&x[ i ] );
- nrg_tmp = SKP_SMULBB( in32, in32 );
- nrg_tmp = SKP_SMLATT_ovflw( nrg_tmp, in32, in32 );
- nrg = (SKP_int32)SKP_ADD_RSHIFT_uint( nrg, (SKP_uint32)nrg_tmp, shft );
- if( nrg < 0 ) {
- /* Scale down */
- nrg = (SKP_int32)SKP_RSHIFT_uint( (SKP_uint32)nrg, 2 );
- shft += 2;
- }
- }
- if( i == len ) {
- /* One sample left to process */
- nrg_tmp = SKP_SMULBB( x[ i ], x[ i ] );
- nrg = (SKP_int32)SKP_ADD_RSHIFT_uint( nrg, nrg_tmp, shft );
- }
-
- /* Make sure to have at least one extra leading zero (two leading zeros in total) */
- if( nrg & 0xC0000000 ) {
- nrg = SKP_RSHIFT_uint( (SKP_uint32)nrg, 2 );
- shft += 2;
- }
-
- /* Output arguments */
- *shift = shft;
- *energy = nrg;
-}
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_TABLES_H
-#define SKP_SILK_TABLES_H
-
-#include "SKP_Silk_define.h"
-#include "SKP_Silk_structs.h"
-
-#define PITCH_EST_MAX_LAG_MS 18 /* 18 ms -> 56 Hz */
-#define PITCH_EST_MIN_LAG_MS 2 /* 2 ms -> 500 Hz */
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-/* entropy coding tables */
-extern const SKP_uint16 SKP_Silk_type_offset_CDF[ 5 ]; /* 5 */
-extern const SKP_uint16 SKP_Silk_type_offset_joint_CDF[ 4 ][ 5 ]; /* 20 */
-extern const SKP_int SKP_Silk_type_offset_CDF_offset;
-
-extern const SKP_uint16 SKP_Silk_gain_CDF[ 2 ][ N_LEVELS_QGAIN + 1 ]; /* 130 */
-extern const SKP_int SKP_Silk_gain_CDF_offset;
-extern const SKP_uint16 SKP_Silk_delta_gain_CDF[ MAX_DELTA_GAIN_QUANT - MIN_DELTA_GAIN_QUANT + 2 ]; /* 46 */
-extern const SKP_int SKP_Silk_delta_gain_CDF_offset;
-
-extern const SKP_uint16 SKP_Silk_pitch_lag_NB_CDF[ 8 * ( PITCH_EST_MAX_LAG_MS - PITCH_EST_MIN_LAG_MS ) + 2 ]; /* 130 */
-extern const SKP_int SKP_Silk_pitch_lag_NB_CDF_offset;
-extern const SKP_uint16 SKP_Silk_pitch_lag_MB_CDF[ 12 * ( PITCH_EST_MAX_LAG_MS - PITCH_EST_MIN_LAG_MS ) + 2 ]; /* 194 */
-extern const SKP_int SKP_Silk_pitch_lag_MB_CDF_offset;
-extern const SKP_uint16 SKP_Silk_pitch_lag_WB_CDF[ 16 * ( PITCH_EST_MAX_LAG_MS - PITCH_EST_MIN_LAG_MS ) + 2 ]; /* 258 */
-extern const SKP_int SKP_Silk_pitch_lag_WB_CDF_offset;
-extern const SKP_uint16 SKP_Silk_pitch_lag_SWB_CDF[ 24 * ( PITCH_EST_MAX_LAG_MS - PITCH_EST_MIN_LAG_MS ) + 2 ]; /* 386 */
-extern const SKP_int SKP_Silk_pitch_lag_SWB_CDF_offset;
-
-extern const SKP_uint16 SKP_Silk_pitch_contour_CDF[ 35 ]; /* 35 */
-extern const SKP_int SKP_Silk_pitch_contour_CDF_offset;
-extern const SKP_uint16 SKP_Silk_pitch_contour_NB_CDF[ 12 ]; /* 12 */
-extern const SKP_int SKP_Silk_pitch_contour_NB_CDF_offset;
-extern const SKP_uint16 SKP_Silk_pitch_delta_CDF[23]; /* 23 */
-extern const SKP_int SKP_Silk_pitch_delta_CDF_offset;
-
-extern const SKP_uint16 SKP_Silk_pulses_per_block_CDF[ N_RATE_LEVELS ][ MAX_PULSES + 3 ]; /* 210 */
-extern const SKP_int SKP_Silk_pulses_per_block_CDF_offset;
-extern const SKP_int16 SKP_Silk_pulses_per_block_BITS_Q6[ N_RATE_LEVELS - 1 ][ MAX_PULSES + 2 ]; /* 180 */
-
-extern const SKP_uint16 SKP_Silk_rate_levels_CDF[ 2 ][ N_RATE_LEVELS ]; /* 20 */
-extern const SKP_int SKP_Silk_rate_levels_CDF_offset;
-extern const SKP_int16 SKP_Silk_rate_levels_BITS_Q6[ 2 ][ N_RATE_LEVELS - 1 ]; /* 18 */
-
-extern const SKP_int SKP_Silk_max_pulses_table[ 4 ]; /* 4 */
-
-extern const SKP_uint16 SKP_Silk_shell_code_table0[ 33 ]; /* 33 */
-extern const SKP_uint16 SKP_Silk_shell_code_table1[ 52 ]; /* 52 */
-extern const SKP_uint16 SKP_Silk_shell_code_table2[ 102 ]; /* 102 */
-extern const SKP_uint16 SKP_Silk_shell_code_table3[ 207 ]; /* 207 */
-extern const SKP_uint16 SKP_Silk_shell_code_table_offsets[ 19 ]; /* 19 */
-
-extern const SKP_uint16 SKP_Silk_lsb_CDF[ 3 ]; /* 3 */
-
-extern const SKP_uint16 SKP_Silk_sign_CDF[ 36 ]; /* 36 */
-
-extern const SKP_uint16 SKP_Silk_LTP_per_index_CDF[ 4 ]; /* 4 */
-extern const SKP_int SKP_Silk_LTP_per_index_CDF_offset;
-extern const SKP_int16 * const SKP_Silk_LTP_gain_BITS_Q6_ptrs[ NB_LTP_CBKS ]; /* 3 */
-extern const SKP_uint16 * const SKP_Silk_LTP_gain_CDF_ptrs[ NB_LTP_CBKS ]; /* 3 */
-extern const SKP_int SKP_Silk_LTP_gain_CDF_offsets[ NB_LTP_CBKS ]; /* 3 */
-extern const SKP_int32 SKP_Silk_LTP_gain_middle_avg_RD_Q14;
-extern const SKP_uint16 SKP_Silk_LTPscale_CDF[ 4 ]; /* 4 */
-extern const SKP_int SKP_Silk_LTPscale_offset;
-
-/* Tables for LTPScale */
-extern const SKP_int16 SKP_Silk_LTPScales_table_Q14[ 3 ];
-
-extern const SKP_uint16 SKP_Silk_vadflag_CDF[ 3 ]; /* 3 */
-extern const SKP_int SKP_Silk_vadflag_offset;
-
-extern const SKP_int SKP_Silk_SamplingRates_table[ 4 ]; /* 4 */
-extern const SKP_uint16 SKP_Silk_SamplingRates_CDF[ 5 ]; /* 5 */
-extern const SKP_int SKP_Silk_SamplingRates_offset;
-
-extern const SKP_uint16 SKP_Silk_NLSF_interpolation_factor_CDF[ 6 ];
-extern const SKP_int SKP_Silk_NLSF_interpolation_factor_offset;
-
-/* NLSF codebooks */
-extern const SKP_Silk_NLSF_CB_struct SKP_Silk_NLSF_CB0_16, SKP_Silk_NLSF_CB1_16;
-extern const SKP_Silk_NLSF_CB_struct SKP_Silk_NLSF_CB0_10, SKP_Silk_NLSF_CB1_10;
-
-/* quantization tables */
-extern const SKP_int16 * const SKP_Silk_LTP_vq_ptrs_Q14[ NB_LTP_CBKS ]; /* 168 */
-extern const SKP_int SKP_Silk_LTP_vq_sizes[ NB_LTP_CBKS ]; /* 3 */
-
-/* Piece-wise linear mapping from bitrate in kbps to coding quality in dB SNR */
-extern const SKP_int32 TargetRate_table_NB[ TARGET_RATE_TAB_SZ ];
-extern const SKP_int32 TargetRate_table_MB[ TARGET_RATE_TAB_SZ ];
-extern const SKP_int32 TargetRate_table_WB[ TARGET_RATE_TAB_SZ ];
-extern const SKP_int32 TargetRate_table_SWB[ TARGET_RATE_TAB_SZ ];
-extern const SKP_int32 SNR_table_Q1[ TARGET_RATE_TAB_SZ ];
-
-extern const SKP_int32 SNR_table_one_bit_per_sample_Q7[ 4 ];
-
-/* Filter coeficicnts for HP filter: 4. Order filter implementad as two biquad filters */
-extern const SKP_int16 SKP_Silk_SWB_detect_B_HP_Q13[ NB_SOS ][ 3 ];
-extern const SKP_int16 SKP_Silk_SWB_detect_A_HP_Q13[ NB_SOS ][ 2 ];
-
-/* Decoder high-pass filter coefficients for 24 kHz sampling */
-extern const SKP_int16 SKP_Silk_Dec_A_HP_24[ DEC_HP_ORDER ]; /* 2 */
-extern const SKP_int16 SKP_Silk_Dec_B_HP_24[ DEC_HP_ORDER + 1 ]; /* 3 */
-
-/* Decoder high-pass filter coefficients for 16 kHz sampling */
-extern const SKP_int16 SKP_Silk_Dec_A_HP_16[ DEC_HP_ORDER ]; /* 2 */
-extern const SKP_int16 SKP_Silk_Dec_B_HP_16[ DEC_HP_ORDER + 1 ]; /* 3 */
-
-/* Decoder high-pass filter coefficients for 12 kHz sampling */
-extern const SKP_int16 SKP_Silk_Dec_A_HP_12[ DEC_HP_ORDER ]; /* 2 */
-extern const SKP_int16 SKP_Silk_Dec_B_HP_12[ DEC_HP_ORDER + 1 ]; /* 3 */
-
-/* Decoder high-pass filter coefficients for 8 kHz sampling */
-extern const SKP_int16 SKP_Silk_Dec_A_HP_8[ DEC_HP_ORDER ]; /* 2 */
-extern const SKP_int16 SKP_Silk_Dec_B_HP_8[ DEC_HP_ORDER + 1 ]; /* 3 */
-
-/* Table for frame termination indication */
-extern const SKP_uint16 SKP_Silk_FrameTermination_CDF[ 5 ];
-extern const SKP_int SKP_Silk_FrameTermination_offset;
-
-/* Table for random seed */
-extern const SKP_uint16 SKP_Silk_Seed_CDF[ 5 ];
-extern const SKP_int SKP_Silk_Seed_offset;
-
-/* Quantization offsets */
-extern const SKP_int16 SKP_Silk_Quantization_Offsets_Q10[ 2 ][ 2 ];
-
-#if SWITCH_TRANSITION_FILTERING
-/* Interpolation points for filter coefficients used in the bandwidth transition smoother */
-extern const SKP_int32 SKP_Silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NB ];
-extern const SKP_int32 SKP_Silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NA ];
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_tables.h"
-
-const SKP_uint16 SKP_Silk_LTP_per_index_CDF[ 4 ] = {
- 0, 20992, 40788, 65535
-};
-
-const SKP_int SKP_Silk_LTP_per_index_CDF_offset = 1;
-
-
-const SKP_uint16 SKP_Silk_LTP_gain_CDF_0[ 11 ] = {
- 0, 49380, 54463, 56494, 58437, 60101, 61683, 62985,
- 64066, 64823, 65535
-};
-
-const SKP_uint16 SKP_Silk_LTP_gain_CDF_1[ 21 ] = {
- 0, 25290, 30654, 35710, 40386, 42937, 45250, 47459,
- 49411, 51348, 52974, 54517, 55976, 57423, 58865, 60285,
- 61667, 62895, 63827, 64724, 65535
-};
-
-const SKP_uint16 SKP_Silk_LTP_gain_CDF_2[ 41 ] = {
- 0, 4958, 9439, 13581, 17638, 21651, 25015, 28025,
- 30287, 32406, 34330, 36240, 38130, 39790, 41281, 42764,
- 44229, 45676, 47081, 48431, 49675, 50849, 51932, 52966,
- 53957, 54936, 55869, 56789, 57708, 58504, 59285, 60043,
- 60796, 61542, 62218, 62871, 63483, 64076, 64583, 65062,
- 65535
-};
-
-const SKP_int SKP_Silk_LTP_gain_CDF_offsets[ 3 ] = {
- 1, 3, 10
-};
-
-const SKP_int32 SKP_Silk_LTP_gain_middle_avg_RD_Q14 = 11010;
-
-const SKP_int16 SKP_Silk_LTP_gain_BITS_Q6_0[ 10 ] = {
- 26, 236, 321, 325, 339, 344, 362, 379,
- 412, 418
-};
-
-const SKP_int16 SKP_Silk_LTP_gain_BITS_Q6_1[ 20 ] = {
- 88, 231, 237, 244, 300, 309, 313, 324,
- 325, 341, 346, 351, 352, 352, 354, 356,
- 367, 393, 396, 406
-};
-
-const SKP_int16 SKP_Silk_LTP_gain_BITS_Q6_2[ 40 ] = {
- 238, 248, 255, 257, 258, 274, 284, 311,
- 317, 326, 326, 327, 339, 349, 350, 351,
- 352, 355, 358, 366, 371, 379, 383, 387,
- 388, 393, 394, 394, 407, 409, 412, 412,
- 413, 422, 426, 432, 434, 449, 454, 455
-};
-
-const SKP_uint16 * const SKP_Silk_LTP_gain_CDF_ptrs[ NB_LTP_CBKS ] = {
- SKP_Silk_LTP_gain_CDF_0,
- SKP_Silk_LTP_gain_CDF_1,
- SKP_Silk_LTP_gain_CDF_2
-};
-
-const SKP_int16 * const SKP_Silk_LTP_gain_BITS_Q6_ptrs[ NB_LTP_CBKS ] = {
- SKP_Silk_LTP_gain_BITS_Q6_0,
- SKP_Silk_LTP_gain_BITS_Q6_1,
- SKP_Silk_LTP_gain_BITS_Q6_2
-};
-
-const SKP_int16 SKP_Silk_LTP_gain_vq_0_Q14[ 10 ][ 5 ] =
-{
-{
- 594, 984, 2840, 1021, 669
-},
-{
- 10, 35, 304, -1, 23
-},
-{
- -694, 1923, 4603, 2975, 2335
-},
-{
- 2437, 3176, 3778, 1940, 481
-},
-{
- 214, -46, 7870, 4406, -521
-},
-{
- -896, 4818, 8501, 1623, -887
-},
-{
- -696, 3178, 6480, -302, 1081
-},
-{
- 517, 599, 1002, 567, 560
-},
-{
- -2075, -834, 4712, -340, 896
-},
-{
- 1435, -644, 3993, -612, -2063
-}
-};
-
-const SKP_int16 SKP_Silk_LTP_gain_vq_1_Q14[ 20 ][ 5 ] =
-{
-{
- 1655, 2918, 5001, 3010, 1775
-},
-{
- 113, 198, 856, 176, 178
-},
-{
- -843, 2479, 7858, 5371, 574
-},
-{
- 59, 5356, 7648, 2850, -315
-},
-{
- 3840, 4851, 6527, 1583, -1233
-},
-{
- 1620, 1760, 2330, 1876, 2045
-},
-{
- -545, 1854, 11792, 1547, -307
-},
-{
- -604, 689, 5369, 5074, 4265
-},
-{
- 521, -1331, 9829, 6209, -1211
-},
-{
- -1315, 6747, 9929, -1410, 546
-},
-{
- 117, -144, 2810, 1649, 5240
-},
-{
- 5392, 3476, 2425, -38, 633
-},
-{
- 14, -449, 5274, 3547, -171
-},
-{
- -98, 395, 9114, 1676, 844
-},
-{
- -908, 3843, 8861, -957, 1474
-},
-{
- 396, 6747, 5379, -329, 1269
-},
-{
- -335, 2830, 4281, 270, -54
-},
-{
- 1502, 5609, 8958, 6045, 2059
-},
-{
- -370, 479, 5267, 5726, 1174
-},
-{
- 5237, -1144, 6510, 455, 512
-}
-};
-
-const SKP_int16 SKP_Silk_LTP_gain_vq_2_Q14[ 40 ][ 5 ] =
-{
-{
- -278, 415, 9345, 7106, -431
-},
-{
- -1006, 3863, 9524, 4724, -871
-},
-{
- -954, 4624, 11722, 973, -300
-},
-{
- -117, 7066, 8331, 1959, -901
-},
-{
- 593, 3412, 6070, 4914, 1567
-},
-{
- 54, -51, 12618, 4228, -844
-},
-{
- 3157, 4822, 5229, 2313, 717
-},
-{
- -244, 1161, 14198, 779, 69
-},
-{
- -1218, 5603, 12894, -2301, 1001
-},
-{
- -132, 3960, 9526, 577, 1806
-},
-{
- -1633, 8815, 10484, -2452, 895
-},
-{
- 235, 450, 1243, 667, 437
-},
-{
- 959, -2630, 10897, 8772, -1852
-},
-{
- 2420, 2046, 8893, 4427, -1569
-},
-{
- 23, 7091, 8356, -1285, 1508
-},
-{
- -1133, 835, 7662, 6043, 2800
-},
-{
- 439, 391, 11016, 2253, 1362
-},
-{
- -1020, 2876, 13436, 4015, -3020
-},
-{
- 1060, -2690, 13512, 5565, -1394
-},
-{
- -1420, 8007, 11421, -152, -1672
-},
-{
- -893, 2895, 15434, -1490, 159
-},
-{
- -1054, 428, 12208, 8538, -3344
-},
-{
- 1772, -1304, 7593, 6185, 561
-},
-{
- 525, -1207, 6659, 11151, -1170
-},
-{
- 439, 2667, 4743, 2359, 5515
-},
-{
- 2951, 7432, 7909, -230, -1564
-},
-{
- -72, 2140, 5477, 1391, 1580
-},
-{
- 476, -1312, 15912, 2174, -1027
-},
-{
- 5737, 441, 2493, 2043, 2757
-},
-{
- 228, -43, 1803, 6663, 7064
-},
-{
- 4596, 9182, 1917, -200, 203
-},
-{
- -704, 12039, 5451, -1188, 542
-},
-{
- 1782, -1040, 10078, 7513, -2767
-},
-{
- -2626, 7747, 9019, 62, 1710
-},
-{
- 235, -233, 2954, 10921, 1947
-},
-{
- 10854, 2814, 1232, -111, 222
-},
-{
- 2267, 2778, 12325, 156, -1658
-},
-{
- -2950, 8095, 16330, 268, -3626
-},
-{
- 67, 2083, 7950, -80, -2432
-},
-{
- 518, -66, 1718, 415, 11435
-}
-};
-
-const SKP_int16 * const SKP_Silk_LTP_vq_ptrs_Q14[ NB_LTP_CBKS ] = {
- &SKP_Silk_LTP_gain_vq_0_Q14[ 0 ][ 0 ],
- &SKP_Silk_LTP_gain_vq_1_Q14[ 0 ][ 0 ],
- &SKP_Silk_LTP_gain_vq_2_Q14[ 0 ][ 0 ]
-};
-
-const SKP_int SKP_Silk_LTP_vq_sizes[ NB_LTP_CBKS ] = {
- 10, 20, 40
-};
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/**********************************************/
-/* This file has been automatically generated */
-/* */
-/* ROM usage: 0.29 + 2.66 kB */
-/**********************************************/
-
-#include "SKP_Silk_structs.h"
-#include "SKP_Silk_tables_NLSF_CB0_10.h"
-#include "SKP_Silk_tables.h"
-
-const SKP_uint16 SKP_Silk_NLSF_MSVQ_CB0_10_CDF[ NLSF_MSVQ_CB0_10_VECTORS + NLSF_MSVQ_CB0_10_STAGES ] =
-{
- 0,
- 2658,
- 4420,
- 6107,
- 7757,
- 9408,
- 10955,
- 12502,
- 13983,
- 15432,
- 16882,
- 18331,
- 19750,
- 21108,
- 22409,
- 23709,
- 25010,
- 26256,
- 27501,
- 28747,
- 29965,
- 31158,
- 32351,
- 33544,
- 34736,
- 35904,
- 36997,
- 38091,
- 39185,
- 40232,
- 41280,
- 42327,
- 43308,
- 44290,
- 45271,
- 46232,
- 47192,
- 48132,
- 49032,
- 49913,
- 50775,
- 51618,
- 52462,
- 53287,
- 54095,
- 54885,
- 55675,
- 56449,
- 57222,
- 57979,
- 58688,
- 59382,
- 60076,
- 60726,
- 61363,
- 61946,
- 62505,
- 63052,
- 63543,
- 63983,
- 64396,
- 64766,
- 65023,
- 65279,
- 65535,
- 0,
- 4977,
- 9542,
- 14106,
- 18671,
- 23041,
- 27319,
- 31596,
- 35873,
- 39969,
- 43891,
- 47813,
- 51652,
- 55490,
- 59009,
- 62307,
- 65535,
- 0,
- 8571,
- 17142,
- 25529,
- 33917,
- 42124,
- 49984,
- 57844,
- 65535,
- 0,
- 8732,
- 17463,
- 25825,
- 34007,
- 42189,
- 50196,
- 58032,
- 65535,
- 0,
- 8948,
- 17704,
- 25733,
- 33762,
- 41791,
- 49821,
- 57678,
- 65535,
- 0,
- 4374,
- 8655,
- 12936,
- 17125,
- 21313,
- 25413,
- 29512,
- 33611,
- 37710,
- 41809,
- 45820,
- 49832,
- 53843,
- 57768,
- 61694,
- 65535
-};
-
-const SKP_uint16 * const SKP_Silk_NLSF_MSVQ_CB0_10_CDF_start_ptr[ NLSF_MSVQ_CB0_10_STAGES ] =
-{
- &SKP_Silk_NLSF_MSVQ_CB0_10_CDF[ 0 ],
- &SKP_Silk_NLSF_MSVQ_CB0_10_CDF[ 65 ],
- &SKP_Silk_NLSF_MSVQ_CB0_10_CDF[ 82 ],
- &SKP_Silk_NLSF_MSVQ_CB0_10_CDF[ 91 ],
- &SKP_Silk_NLSF_MSVQ_CB0_10_CDF[ 100 ],
- &SKP_Silk_NLSF_MSVQ_CB0_10_CDF[ 109 ]
-};
-
-const SKP_int SKP_Silk_NLSF_MSVQ_CB0_10_CDF_middle_idx[ NLSF_MSVQ_CB0_10_STAGES ] =
-{
- 23,
- 8,
- 5,
- 5,
- 5,
- 9
-};
-
-const SKP_int16 SKP_Silk_NLSF_MSVQ_CB0_10_rates_Q5[ NLSF_MSVQ_CB0_10_VECTORS ] =
-{
- 148, 167,
- 169, 170,
- 170, 173,
- 173, 175,
- 176, 176,
- 176, 177,
- 179, 181,
- 181, 181,
- 183, 183,
- 183, 184,
- 185, 185,
- 185, 185,
- 186, 189,
- 189, 189,
- 191, 191,
- 191, 194,
- 194, 194,
- 195, 195,
- 196, 198,
- 199, 200,
- 201, 201,
- 202, 203,
- 204, 204,
- 205, 205,
- 206, 209,
- 210, 210,
- 213, 214,
- 218, 220,
- 221, 226,
- 231, 234,
- 239, 256,
- 256, 256,
- 119, 123,
- 123, 123,
- 125, 126,
- 126, 126,
- 128, 130,
- 130, 131,
- 131, 135,
- 138, 139,
- 94, 94,
- 95, 95,
- 96, 98,
- 98, 99,
- 93, 93,
- 95, 96,
- 96, 97,
- 98, 100,
- 92, 93,
- 97, 97,
- 97, 97,
- 98, 98,
- 125, 126,
- 126, 127,
- 127, 128,
- 128, 128,
- 128, 128,
- 129, 129,
- 129, 130,
- 130, 131
-};
-
-const SKP_int SKP_Silk_NLSF_MSVQ_CB0_10_ndelta_min_Q15[ 10 + 1 ] =
-{
- 563,
- 3,
- 22,
- 20,
- 3,
- 3,
- 132,
- 119,
- 358,
- 86,
- 964
-};
-
-const SKP_int16 SKP_Silk_NLSF_MSVQ_CB0_10_Q15[ 10 * NLSF_MSVQ_CB0_10_VECTORS ] =
-{
- 2210, 4023,
- 6981, 9260,
- 12573, 15687,
- 19207, 22383,
- 25981, 29142,
- 3285, 4172,
- 6116, 10856,
- 15289, 16826,
- 19701, 22010,
- 24721, 29313,
- 1554, 2511,
- 6577, 10337,
- 13837, 16511,
- 20086, 23214,
- 26480, 29464,
- 3062, 4017,
- 5771, 10037,
- 13365, 14952,
- 20140, 22891,
- 25229, 29603,
- 2085, 3457,
- 5934, 8718,
- 11501, 13670,
- 17997, 21817,
- 24935, 28745,
- 2776, 4093,
- 6421, 10413,
- 15111, 16806,
- 20825, 23826,
- 26308, 29411,
- 2717, 4034,
- 5697, 8463,
- 14301, 16354,
- 19007, 23413,
- 25812, 28506,
- 2872, 3702,
- 5881, 11034,
- 17141, 18879,
- 21146, 23451,
- 25817, 29600,
- 2999, 4015,
- 7357, 11219,
- 12866, 17307,
- 20081, 22644,
- 26774, 29107,
- 2942, 3866,
- 5918, 11915,
- 13909, 16072,
- 20453, 22279,
- 27310, 29826,
- 2271, 3527,
- 6606, 9729,
- 12943, 17382,
- 20224, 22345,
- 24602, 28290,
- 2207, 3310,
- 5844, 9339,
- 11141, 15651,
- 18576, 21177,
- 25551, 28228,
- 3963, 4975,
- 6901, 11588,
- 13466, 15577,
- 19231, 21368,
- 25510, 27759,
- 2749, 3549,
- 6966, 13808,
- 15653, 17645,
- 20090, 22599,
- 26467, 28537,
- 2126, 3504,
- 5109, 9954,
- 12550, 14620,
- 19703, 21687,
- 26457, 29106,
- 3966, 5745,
- 7442, 9757,
- 14468, 16404,
- 19135, 23048,
- 25375, 28391,
- 3197, 4751,
- 6451, 9298,
- 13038, 14874,
- 17962, 20627,
- 23835, 28464,
- 3195, 4081,
- 6499, 12252,
- 14289, 16040,
- 18357, 20730,
- 26980, 29309,
- 1533, 2471,
- 4486, 7796,
- 12332, 15758,
- 19567, 22298,
- 25673, 29051,
- 2002, 2971,
- 4985, 8083,
- 13181, 15435,
- 18237, 21517,
- 24595, 28351,
- 3808, 4925,
- 6710, 10201,
- 12011, 14300,
- 18457, 20391,
- 26525, 28956,
- 2281, 3418,
- 4979, 8726,
- 15964, 18104,
- 20250, 22771,
- 25286, 28954,
- 3051, 5479,
- 7290, 9848,
- 12744, 14503,
- 18665, 23684,
- 26065, 28947,
- 2364, 3565,
- 5502, 9621,
- 14922, 16621,
- 19005, 20996,
- 26310, 29302,
- 4093, 5212,
- 6833, 9880,
- 16303, 18286,
- 20571, 23614,
- 26067, 29128,
- 2941, 3996,
- 6038, 10638,
- 12668, 14451,
- 16798, 19392,
- 26051, 28517,
- 3863, 5212,
- 7019, 9468,
- 11039, 13214,
- 19942, 22344,
- 25126, 29539,
- 4615, 6172,
- 7853, 10252,
- 12611, 14445,
- 19719, 22441,
- 24922, 29341,
- 3566, 4512,
- 6985, 8684,
- 10544, 16097,
- 18058, 22475,
- 26066, 28167,
- 4481, 5489,
- 7432, 11414,
- 13191, 15225,
- 20161, 22258,
- 26484, 29716,
- 3320, 4320,
- 6621, 9867,
- 11581, 14034,
- 21168, 23210,
- 26588, 29903,
- 3794, 4689,
- 6916, 8655,
- 10143, 16144,
- 19568, 21588,
- 27557, 29593,
- 2446, 3276,
- 5918, 12643,
- 16601, 18013,
- 21126, 23175,
- 27300, 29634,
- 2450, 3522,
- 5437, 8560,
- 15285, 19911,
- 21826, 24097,
- 26567, 29078,
- 2580, 3796,
- 5580, 8338,
- 9969, 12675,
- 18907, 22753,
- 25450, 29292,
- 3325, 4312,
- 6241, 7709,
- 9164, 14452,
- 21665, 23797,
- 27096, 29857,
- 3338, 4163,
- 7738, 11114,
- 12668, 14753,
- 16931, 22736,
- 25671, 28093,
- 3840, 4755,
- 7755, 13471,
- 15338, 17180,
- 20077, 22353,
- 27181, 29743,
- 2504, 4079,
- 8351, 12118,
- 15046, 18595,
- 21684, 24704,
- 27519, 29937,
- 5234, 6342,
- 8267, 11821,
- 15155, 16760,
- 20667, 23488,
- 25949, 29307,
- 2681, 3562,
- 6028, 10827,
- 18458, 20458,
- 22303, 24701,
- 26912, 29956,
- 3374, 4528,
- 6230, 8256,
- 9513, 12730,
- 18666, 20720,
- 26007, 28425,
- 2731, 3629,
- 8320, 12450,
- 14112, 16431,
- 18548, 22098,
- 25329, 27718,
- 3481, 4401,
- 7321, 9319,
- 11062, 13093,
- 15121, 22315,
- 26331, 28740,
- 3577, 4945,
- 6669, 8792,
- 10299, 12645,
- 19505, 24766,
- 26996, 29634,
- 4058, 5060,
- 7288, 10190,
- 11724, 13936,
- 15849, 18539,
- 26701, 29845,
- 4262, 5390,
- 7057, 8982,
- 10187, 15264,
- 20480, 22340,
- 25958, 28072,
- 3404, 4329,
- 6629, 7946,
- 10121, 17165,
- 19640, 22244,
- 25062, 27472,
- 3157, 4168,
- 6195, 9319,
- 10771, 13325,
- 15416, 19816,
- 24672, 27634,
- 2503, 3473,
- 5130, 6767,
- 8571, 14902,
- 19033, 21926,
- 26065, 28728,
- 4133, 5102,
- 7553, 10054,
- 11757, 14924,
- 17435, 20186,
- 23987, 26272,
- 4972, 6139,
- 7894, 9633,
- 11320, 14295,
- 21737, 24306,
- 26919, 29907,
- 2958, 3816,
- 6851, 9204,
- 10895, 18052,
- 20791, 23338,
- 27556, 29609,
- 5234, 6028,
- 8034, 10154,
- 11242, 14789,
- 18948, 20966,
- 26585, 29127,
- 5241, 6838,
- 10526, 12819,
- 14681, 17328,
- 19928, 22336,
- 26193, 28697,
- 3412, 4251,
- 5988, 7094,
- 9907, 18243,
- 21669, 23777,
- 26969, 29087,
- 2470, 3217,
- 7797, 15296,
- 17365, 19135,
- 21979, 24256,
- 27322, 29442,
- 4939, 5804,
- 8145, 11809,
- 13873, 15598,
- 17234, 19423,
- 26476, 29645,
- 5051, 6167,
- 8223, 9655,
- 12159, 17995,
- 20464, 22832,
- 26616, 28462,
- 4987, 5907,
- 9319, 11245,
- 13132, 15024,
- 17485, 22687,
- 26011, 28273,
- 5137, 6884,
- 11025, 14950,
- 17191, 19425,
- 21807, 24393,
- 26938, 29288,
- 7057, 7884,
- 9528, 10483,
- 10960, 14811,
- 19070, 21675,
- 25645, 28019,
- 6759, 7160,
- 8546, 11779,
- 12295, 13023,
- 16627, 21099,
- 24697, 28287,
- 3863, 9762,
- 11068, 11445,
- 12049, 13960,
- 18085, 21507,
- 25224, 28997,
- 397, 335,
- 651, 1168,
- 640, 765,
- 465, 331,
- 214, -194,
- -578, -647,
- -657, 750,
- 564, 613,
- 549, 630,
- 304, -52,
- 828, 922,
- 443, 111,
- 138, 124,
- 169, 14,
- 144, 83,
- 132, 58,
- -413, -752,
- 869, 336,
- 385, 69,
- 56, 830,
- -227, -266,
- -368, -440,
- -1195, 163,
- 126, -228,
- 802, 156,
- 188, 120,
- 376, 59,
- -358, -558,
- -1326, -254,
- -202, -789,
- 296, 92,
- -70, -129,
- -718, -1135,
- 292, -29,
- -631, 487,
- -157, -153,
- -279, 2,
- -419, -342,
- -34, -514,
- -799, -1571,
- -687, -609,
- -546, -130,
- -215, -252,
- -446, -574,
- -1337, 207,
- -72, 32,
- 103, -642,
- 942, 733,
- 187, 29,
- -211, -814,
- 143, 225,
- 20, 24,
- -268, -377,
- 1623, 1133,
- 667, 164,
- 307, 366,
- 187, 34,
- 62, -313,
- -832, -1482,
- -1181, 483,
- -42, -39,
- -450, -1406,
- -587, -52,
- -760, 334,
- 98, -60,
- -500, -488,
- -1058, 299,
- 131, -250,
- -251, -703,
- 1037, 568,
- -413, -265,
- 1687, 573,
- 345, 323,
- 98, 61,
- -102, 31,
- 135, 149,
- 617, 365,
- -39, 34,
- -611, 1201,
- 1421, 736,
- -414, -393,
- -492, -343,
- -316, -532,
- 528, 172,
- 90, 322,
- -294, -319,
- -541, 503,
- 639, 401,
- 1, -149,
- -73, -167,
- 150, 118,
- 308, 218,
- 121, 195,
- -143, -261,
- -1013, -802,
- 387, 436,
- 130, -427,
- -448, -681,
- 123, -87,
- -251, -113,
- 274, 310,
- 445, 501,
- 354, 272,
- 141, -285,
- 569, 656,
- 37, -49,
- 251, -386,
- -263, 1122,
- 604, 606,
- 336, 95,
- 34, 0,
- 85, 180,
- 207, -367,
- -622, 1070,
- -6, -79,
- -160, -92,
- -137, -276,
- -323, -371,
- -696, -1036,
- 407, 102,
- -86, -214,
- -482, -647,
- -28, -291,
- -97, -180,
- -250, -435,
- -18, -76,
- -332, 410,
- 407, 168,
- 539, 411,
- 254, 111,
- 58, -145,
- 200, 30,
- 187, 116,
- 131, -367,
- -475, 781,
- -559, 561,
- 195, -115,
- 8, -168,
- 30, 55,
- -122, 131,
- 82, -5,
- -273, -50,
- -632, 668,
- 4, 32,
- -26, -279,
- 315, 165,
- 197, 377,
- 155, -41,
- -138, -324,
- -109, -617,
- 360, 98,
- -53, -319,
- -114, -245,
- -82, 507,
- 468, 263,
- -137, -389,
- 652, 354,
- -18, -227,
- -462, -135,
- 317, 53,
- -16, 66,
- -72, -126,
- -356, -347,
- -328, -72,
- -337, 324,
- 152, 349,
- 169, -196,
- 179, 254,
- 260, 325,
- -74, -80,
- 75, -31,
- 270, 275,
- 87, 278,
- -446, -301,
- 309, 71,
- -25, -242,
- 516, 161,
- -162, -83,
- 329, 230,
- -311, -259,
- 177, -26,
- -462, 89,
- 257, 6,
- -130, -93,
- -456, -317,
- -221, -206,
- -417, -182,
- -74, 234,
- 48, 261,
- 359, 231,
- 258, 85,
- -282, 252,
- -147, -222,
- 251, -207,
- 443, 123,
- -417, -36,
- 273, -241,
- 240, -112,
- 44, -167,
- 126, -124,
- -77, 58,
- -401, 333,
- -118, 82,
- 126, 151,
- -433, 359,
- -130, -102,
- 131, -244,
- 86, 85,
- -462, 414,
- -240, 16,
- 145, 28,
- -205, -481,
- 373, 293,
- -72, -174,
- 62, 259,
- -8, -18,
- 362, 233,
- 185, 43,
- 278, 27,
- 193, 570,
- -248, 189,
- 92, 31,
- -275, -3,
- 243, 176,
- 438, 209,
- 206, -51,
- 79, 109,
- 168, -185,
- -308, -68,
- -618, 385,
- -310, -108,
- -164, 165,
- 61, -152,
- -101, -412,
- -268, -257,
- -40, -20,
- -28, -158,
- -301, 271,
- 380, -338,
- -367, -132,
- 64, 114,
- -131, -225,
- -156, -260,
- -63, -116,
- 155, -586,
- -202, 254,
- -287, 178,
- 227, -106,
- -294, 164,
- 298, -100,
- 185, 317,
- 193, -45,
- 28, 80,
- -87, -433,
- 22, -48,
- 48, -237,
- -229, -139,
- 120, -364,
- 268, -136,
- 396, 125,
- 130, -89,
- -272, 118,
- -256, -68,
- -451, 488,
- 143, -165,
- -48, -190,
- 106, 219,
- 47, 435,
- 245, 97,
- 75, -418,
- 121, -187,
- 570, -200,
- -351, 225,
- -21, -217,
- 234, -111,
- 194, 14,
- 242, 118,
- 140, -397,
- 355, 361,
- -45, -195
-};
-
-const SKP_Silk_NLSF_CBS SKP_Silk_NLSF_CB0_10_Stage_info[ NLSF_MSVQ_CB0_10_STAGES ] =
-{
- { 64, &SKP_Silk_NLSF_MSVQ_CB0_10_Q15[ 10 * 0 ], &SKP_Silk_NLSF_MSVQ_CB0_10_rates_Q5[ 0 ] },
- { 16, &SKP_Silk_NLSF_MSVQ_CB0_10_Q15[ 10 * 64 ], &SKP_Silk_NLSF_MSVQ_CB0_10_rates_Q5[ 64 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB0_10_Q15[ 10 * 80 ], &SKP_Silk_NLSF_MSVQ_CB0_10_rates_Q5[ 80 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB0_10_Q15[ 10 * 88 ], &SKP_Silk_NLSF_MSVQ_CB0_10_rates_Q5[ 88 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB0_10_Q15[ 10 * 96 ], &SKP_Silk_NLSF_MSVQ_CB0_10_rates_Q5[ 96 ] },
- { 16, &SKP_Silk_NLSF_MSVQ_CB0_10_Q15[ 10 * 104 ], &SKP_Silk_NLSF_MSVQ_CB0_10_rates_Q5[ 104 ] }
-};
-
-const SKP_Silk_NLSF_CB_struct SKP_Silk_NLSF_CB0_10 =
-{
- NLSF_MSVQ_CB0_10_STAGES,
- SKP_Silk_NLSF_CB0_10_Stage_info,
- SKP_Silk_NLSF_MSVQ_CB0_10_ndelta_min_Q15,
- SKP_Silk_NLSF_MSVQ_CB0_10_CDF,
- SKP_Silk_NLSF_MSVQ_CB0_10_CDF_start_ptr,
- SKP_Silk_NLSF_MSVQ_CB0_10_CDF_middle_idx
-};
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_TABLES_NLSF_CB0_10_H
-#define SKP_SILK_TABLES_NLSF_CB0_10_H
-
-#include "SKP_Silk_define.h"
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-#define NLSF_MSVQ_CB0_10_STAGES 6
-#define NLSF_MSVQ_CB0_10_VECTORS 120
-
-/* NLSF codebook entropy coding tables */
-extern const SKP_uint16 SKP_Silk_NLSF_MSVQ_CB0_10_CDF[ NLSF_MSVQ_CB0_10_VECTORS + NLSF_MSVQ_CB0_10_STAGES ];
-extern const SKP_uint16 * const SKP_Silk_NLSF_MSVQ_CB0_10_CDF_start_ptr[ NLSF_MSVQ_CB0_10_STAGES ];
-extern const SKP_int SKP_Silk_NLSF_MSVQ_CB0_10_CDF_middle_idx[ NLSF_MSVQ_CB0_10_STAGES ];
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/**********************************************/
-/* This file has been automatically generated */
-/* */
-/* ROM usage: 0.51 + 7.38 kB */
-/**********************************************/
-
-#include "SKP_Silk_structs.h"
-#include "SKP_Silk_tables_NLSF_CB0_16.h"
-#include "SKP_Silk_tables.h"
-
-const SKP_uint16 SKP_Silk_NLSF_MSVQ_CB0_16_CDF[ NLSF_MSVQ_CB0_16_VECTORS + NLSF_MSVQ_CB0_16_STAGES ] =
-{
- 0,
- 1449,
- 2749,
- 4022,
- 5267,
- 6434,
- 7600,
- 8647,
- 9695,
- 10742,
- 11681,
- 12601,
- 13444,
- 14251,
- 15008,
- 15764,
- 16521,
- 17261,
- 18002,
- 18710,
- 19419,
- 20128,
- 20837,
- 21531,
- 22225,
- 22919,
- 23598,
- 24277,
- 24956,
- 25620,
- 26256,
- 26865,
- 27475,
- 28071,
- 28667,
- 29263,
- 29859,
- 30443,
- 31026,
- 31597,
- 32168,
- 32727,
- 33273,
- 33808,
- 34332,
- 34855,
- 35379,
- 35902,
- 36415,
- 36927,
- 37439,
- 37941,
- 38442,
- 38932,
- 39423,
- 39914,
- 40404,
- 40884,
- 41364,
- 41844,
- 42324,
- 42805,
- 43285,
- 43754,
- 44224,
- 44694,
- 45164,
- 45623,
- 46083,
- 46543,
- 46993,
- 47443,
- 47892,
- 48333,
- 48773,
- 49213,
- 49653,
- 50084,
- 50515,
- 50946,
- 51377,
- 51798,
- 52211,
- 52614,
- 53018,
- 53422,
- 53817,
- 54212,
- 54607,
- 55002,
- 55388,
- 55775,
- 56162,
- 56548,
- 56910,
- 57273,
- 57635,
- 57997,
- 58352,
- 58698,
- 59038,
- 59370,
- 59702,
- 60014,
- 60325,
- 60630,
- 60934,
- 61239,
- 61537,
- 61822,
- 62084,
- 62346,
- 62602,
- 62837,
- 63072,
- 63302,
- 63517,
- 63732,
- 63939,
- 64145,
- 64342,
- 64528,
- 64701,
- 64867,
- 65023,
- 65151,
- 65279,
- 65407,
- 65535,
- 0,
- 5099,
- 9982,
- 14760,
- 19538,
- 24213,
- 28595,
- 32976,
- 36994,
- 41012,
- 44944,
- 48791,
- 52557,
- 56009,
- 59388,
- 62694,
- 65535,
- 0,
- 9955,
- 19697,
- 28825,
- 36842,
- 44686,
- 52198,
- 58939,
- 65535,
- 0,
- 8949,
- 17335,
- 25720,
- 33926,
- 41957,
- 49987,
- 57845,
- 65535,
- 0,
- 9724,
- 18642,
- 26998,
- 35355,
- 43532,
- 51534,
- 59365,
- 65535,
- 0,
- 8750,
- 17499,
- 26249,
- 34448,
- 42471,
- 50494,
- 58178,
- 65535,
- 0,
- 8730,
- 17273,
- 25816,
- 34176,
- 42536,
- 50203,
- 57869,
- 65535,
- 0,
- 8769,
- 17538,
- 26307,
- 34525,
- 42742,
- 50784,
- 58319,
- 65535,
- 0,
- 8736,
- 17101,
- 25466,
- 33653,
- 41839,
- 50025,
- 57864,
- 65535,
- 0,
- 4368,
- 8735,
- 12918,
- 17100,
- 21283,
- 25465,
- 29558,
- 33651,
- 37744,
- 41836,
- 45929,
- 50022,
- 54027,
- 57947,
- 61782,
- 65535
-};
-
-const SKP_uint16 * const SKP_Silk_NLSF_MSVQ_CB0_16_CDF_start_ptr[ NLSF_MSVQ_CB0_16_STAGES ] =
-{
- &SKP_Silk_NLSF_MSVQ_CB0_16_CDF[ 0 ],
- &SKP_Silk_NLSF_MSVQ_CB0_16_CDF[ 129 ],
- &SKP_Silk_NLSF_MSVQ_CB0_16_CDF[ 146 ],
- &SKP_Silk_NLSF_MSVQ_CB0_16_CDF[ 155 ],
- &SKP_Silk_NLSF_MSVQ_CB0_16_CDF[ 164 ],
- &SKP_Silk_NLSF_MSVQ_CB0_16_CDF[ 173 ],
- &SKP_Silk_NLSF_MSVQ_CB0_16_CDF[ 182 ],
- &SKP_Silk_NLSF_MSVQ_CB0_16_CDF[ 191 ],
- &SKP_Silk_NLSF_MSVQ_CB0_16_CDF[ 200 ],
- &SKP_Silk_NLSF_MSVQ_CB0_16_CDF[ 209 ]
-};
-
-const SKP_int SKP_Silk_NLSF_MSVQ_CB0_16_CDF_middle_idx[ NLSF_MSVQ_CB0_16_STAGES ] =
-{
- 42,
- 8,
- 4,
- 5,
- 5,
- 5,
- 5,
- 5,
- 5,
- 9
-};
-
-const SKP_int16 SKP_Silk_NLSF_MSVQ_CB0_16_rates_Q5[ NLSF_MSVQ_CB0_16_VECTORS ] =
-{
- 176, 181,
- 182, 183,
- 186, 186,
- 191, 191,
- 191, 196,
- 197, 201,
- 203, 206,
- 206, 206,
- 207, 207,
- 209, 209,
- 209, 209,
- 210, 210,
- 210, 211,
- 211, 211,
- 212, 214,
- 216, 216,
- 217, 217,
- 217, 217,
- 218, 218,
- 219, 219,
- 220, 221,
- 222, 223,
- 223, 223,
- 223, 224,
- 224, 224,
- 225, 225,
- 226, 226,
- 226, 226,
- 227, 227,
- 227, 227,
- 227, 227,
- 228, 228,
- 228, 228,
- 229, 229,
- 229, 230,
- 230, 230,
- 231, 231,
- 231, 231,
- 232, 232,
- 232, 232,
- 233, 234,
- 235, 235,
- 235, 236,
- 236, 236,
- 236, 237,
- 237, 237,
- 237, 240,
- 240, 240,
- 240, 241,
- 242, 243,
- 244, 244,
- 247, 247,
- 248, 248,
- 248, 249,
- 251, 255,
- 255, 256,
- 260, 260,
- 261, 264,
- 264, 266,
- 266, 268,
- 271, 274,
- 276, 279,
- 288, 288,
- 288, 288,
- 118, 120,
- 121, 121,
- 122, 125,
- 125, 129,
- 129, 130,
- 131, 132,
- 136, 137,
- 138, 145,
- 87, 88,
- 91, 97,
- 98, 100,
- 105, 106,
- 92, 95,
- 95, 96,
- 97, 97,
- 98, 99,
- 88, 92,
- 95, 95,
- 96, 97,
- 98, 109,
- 93, 93,
- 93, 96,
- 97, 97,
- 99, 101,
- 93, 94,
- 94, 95,
- 95, 99,
- 99, 99,
- 93, 93,
- 93, 96,
- 96, 97,
- 100, 102,
- 93, 95,
- 95, 96,
- 96, 96,
- 98, 99,
- 125, 125,
- 127, 127,
- 127, 127,
- 128, 128,
- 128, 128,
- 128, 128,
- 129, 130,
- 131, 132
-};
-
-const SKP_int SKP_Silk_NLSF_MSVQ_CB0_16_ndelta_min_Q15[ 16 + 1 ] =
-{
- 266,
- 3,
- 40,
- 3,
- 3,
- 16,
- 78,
- 89,
- 107,
- 141,
- 188,
- 146,
- 272,
- 240,
- 235,
- 215,
- 632
-};
-
-const SKP_int16 SKP_Silk_NLSF_MSVQ_CB0_16_Q15[ 16 * NLSF_MSVQ_CB0_16_VECTORS ] =
-{
- 1170, 2278, 3658, 5374,
- 7666, 9113, 11298, 13304,
- 15371, 17549, 19587, 21487,
- 23798, 26038, 28318, 30201,
- 1628, 2334, 4115, 6036,
- 7818, 9544, 11777, 14021,
- 15787, 17408, 19466, 21261,
- 22886, 24565, 26714, 28059,
- 1724, 2670, 4056, 6532,
- 8357, 10119, 12093, 14061,
- 16491, 18795, 20417, 22402,
- 24251, 26224, 28410, 29956,
- 1493, 3427, 4789, 6399,
- 8435, 10168, 12000, 14066,
- 16229, 18210, 20040, 22098,
- 24153, 26095, 28183, 30121,
- 1119, 2089, 4295, 6245,
- 8691, 10741, 12688, 15057,
- 17028, 18792, 20717, 22514,
- 24497, 26548, 28619, 30630,
- 1363, 2417, 3927, 5556,
- 7422, 9315, 11879, 13767,
- 16143, 18520, 20458, 22578,
- 24539, 26436, 28318, 30318,
- 1122, 2503, 5216, 7148,
- 9310, 11078, 13175, 14800,
- 16864, 18700, 20436, 22488,
- 24572, 26602, 28555, 30426,
- 600, 1317, 2970, 5609,
- 7694, 9784, 12169, 14087,
- 16379, 18378, 20551, 22686,
- 24739, 26697, 28646, 30355,
- 941, 1882, 4274, 5540,
- 8482, 9858, 11940, 14287,
- 16091, 18501, 20326, 22612,
- 24711, 26638, 28814, 30430,
- 635, 1699, 4376, 5948,
- 8097, 10115, 12274, 14178,
- 16111, 17813, 19695, 21773,
- 23927, 25866, 28022, 30134,
- 1408, 2222, 3524, 5615,
- 7345, 8849, 10989, 12772,
- 15352, 17026, 18919, 21062,
- 23329, 25215, 27209, 29023,
- 701, 1307, 3548, 6301,
- 7744, 9574, 11227, 12978,
- 15170, 17565, 19775, 22097,
- 24230, 26335, 28377, 30231,
- 1752, 2364, 4879, 6569,
- 7813, 9796, 11199, 14290,
- 15795, 18000, 20396, 22417,
- 24308, 26124, 28360, 30633,
- 901, 1629, 3356, 4635,
- 7256, 8767, 9971, 11558,
- 15215, 17544, 19523, 21852,
- 23900, 25978, 28133, 30184,
- 981, 1669, 3323, 4693,
- 6213, 8692, 10614, 12956,
- 15211, 17711, 19856, 22122,
- 24344, 26592, 28723, 30481,
- 1607, 2577, 4220, 5512,
- 8532, 10388, 11627, 13671,
- 15752, 17199, 19840, 21859,
- 23494, 25786, 28091, 30131,
- 811, 1471, 3144, 5041,
- 7430, 9389, 11174, 13255,
- 15157, 16741, 19583, 22167,
- 24115, 26142, 28383, 30395,
- 1543, 2144, 3629, 6347,
- 7333, 9339, 10710, 13596,
- 15099, 17340, 20102, 21886,
- 23732, 25637, 27818, 29917,
- 492, 1185, 2940, 5488,
- 7095, 8751, 11596, 13579,
- 16045, 18015, 20178, 22127,
- 24265, 26406, 28484, 30357,
- 1547, 2282, 3693, 6341,
- 7758, 9607, 11848, 13236,
- 16564, 18069, 19759, 21404,
- 24110, 26606, 28786, 30655,
- 685, 1338, 3409, 5262,
- 6950, 9222, 11414, 14523,
- 16337, 17893, 19436, 21298,
- 23293, 25181, 27973, 30520,
- 887, 1581, 3057, 4318,
- 7192, 8617, 10047, 13106,
- 16265, 17893, 20233, 22350,
- 24379, 26384, 28314, 30189,
- 2285, 3745, 5662, 7576,
- 9323, 11320, 13239, 15191,
- 17175, 19225, 21108, 22972,
- 24821, 26655, 28561, 30460,
- 1496, 2108, 3448, 6898,
- 8328, 9656, 11252, 12823,
- 14979, 16482, 18180, 20085,
- 22962, 25160, 27705, 29629,
- 575, 1261, 3861, 6627,
- 8294, 10809, 12705, 14768,
- 17076, 19047, 20978, 23055,
- 24972, 26703, 28720, 30345,
- 1682, 2213, 3882, 6238,
- 7208, 9646, 10877, 13431,
- 14805, 16213, 17941, 20873,
- 23550, 25765, 27756, 29461,
- 888, 1616, 3924, 5195,
- 7206, 8647, 9842, 11473,
- 16067, 18221, 20343, 22774,
- 24503, 26412, 28054, 29731,
- 805, 1454, 2683, 4472,
- 7936, 9360, 11398, 14345,
- 16205, 17832, 19453, 21646,
- 23899, 25928, 28387, 30463,
- 1640, 2383, 3484, 5082,
- 6032, 8606, 11640, 12966,
- 15842, 17368, 19346, 21182,
- 23638, 25889, 28368, 30299,
- 1632, 2204, 4510, 7580,
- 8718, 10512, 11962, 14096,
- 15640, 17194, 19143, 22247,
- 24563, 26561, 28604, 30509,
- 2043, 2612, 3985, 6851,
- 8038, 9514, 10979, 12789,
- 15426, 16728, 18899, 20277,
- 22902, 26209, 28711, 30618,
- 2224, 2798, 4465, 5320,
- 7108, 9436, 10986, 13222,
- 14599, 18317, 20141, 21843,
- 23601, 25700, 28184, 30582,
- 835, 1541, 4083, 5769,
- 7386, 9399, 10971, 12456,
- 15021, 18642, 20843, 23100,
- 25292, 26966, 28952, 30422,
- 1795, 2343, 4809, 5896,
- 7178, 8545, 10223, 13370,
- 14606, 16469, 18273, 20736,
- 23645, 26257, 28224, 30390,
- 1734, 2254, 4031, 5188,
- 6506, 7872, 9651, 13025,
- 14419, 17305, 19495, 22190,
- 24403, 26302, 28195, 30177,
- 1841, 2349, 3968, 4764,
- 6376, 9825, 11048, 13345,
- 14682, 16252, 18183, 21363,
- 23918, 26156, 28031, 29935,
- 1432, 2047, 5631, 6927,
- 8198, 9675, 11358, 13506,
- 14802, 16419, 18339, 22019,
- 24124, 26177, 28130, 30586,
- 1730, 2320, 3744, 4808,
- 6007, 9666, 10997, 13622,
- 15234, 17495, 20088, 22002,
- 23603, 25400, 27379, 29254,
- 1267, 1915, 5483, 6812,
- 8229, 9919, 11589, 13337,
- 14747, 17965, 20552, 22167,
- 24519, 26819, 28883, 30642,
- 1526, 2229, 4240, 7388,
- 8953, 10450, 11899, 13718,
- 16861, 18323, 20379, 22672,
- 24797, 26906, 28906, 30622,
- 2175, 2791, 4104, 6875,
- 8612, 9798, 12152, 13536,
- 15623, 17682, 19213, 21060,
- 24382, 26760, 28633, 30248,
- 454, 1231, 4339, 5738,
- 7550, 9006, 10320, 13525,
- 16005, 17849, 20071, 21992,
- 23949, 26043, 28245, 30175,
- 2250, 2791, 4230, 5283,
- 6762, 10607, 11879, 13821,
- 15797, 17264, 20029, 22266,
- 24588, 26437, 28244, 30419,
- 1696, 2216, 4308, 8385,
- 9766, 11030, 12556, 14099,
- 16322, 17640, 19166, 20590,
- 23967, 26858, 28798, 30562,
- 2452, 3236, 4369, 6118,
- 7156, 9003, 11509, 12796,
- 15749, 17291, 19491, 22241,
- 24530, 26474, 28273, 30073,
- 1811, 2541, 3555, 5480,
- 9123, 10527, 11894, 13659,
- 15262, 16899, 19366, 21069,
- 22694, 24314, 27256, 29983,
- 1553, 2246, 4559, 5500,
- 6754, 7874, 11739, 13571,
- 15188, 17879, 20281, 22510,
- 24614, 26649, 28786, 30755,
- 1982, 2768, 3834, 5964,
- 8732, 9908, 11797, 14813,
- 16311, 17946, 21097, 22851,
- 24456, 26304, 28166, 29755,
- 1824, 2529, 3817, 5449,
- 6854, 8714, 10381, 12286,
- 14194, 15774, 19524, 21374,
- 23695, 26069, 28096, 30212,
- 2212, 2854, 3947, 5898,
- 9930, 11556, 12854, 14788,
- 16328, 17700, 20321, 22098,
- 23672, 25291, 26976, 28586,
- 2023, 2599, 4024, 4916,
- 6613, 11149, 12457, 14626,
- 16320, 17822, 19673, 21172,
- 23115, 26051, 28825, 30758,
- 1628, 2206, 3467, 4364,
- 8679, 10173, 11864, 13679,
- 14998, 16938, 19207, 21364,
- 23850, 26115, 28124, 30273,
- 2014, 2603, 4114, 7254,
- 8516, 10043, 11822, 13503,
- 16329, 17826, 19697, 21280,
- 23151, 24661, 26807, 30161,
- 2376, 2980, 4422, 5770,
- 7016, 9723, 11125, 13516,
- 15485, 16985, 19160, 20587,
- 24401, 27180, 29046, 30647,
- 2454, 3502, 4624, 6019,
- 7632, 8849, 10792, 13964,
- 15523, 17085, 19611, 21238,
- 22856, 25108, 28106, 29890,
- 1573, 2274, 3308, 5999,
- 8977, 10104, 12457, 14258,
- 15749, 18180, 19974, 21253,
- 23045, 25058, 27741, 30315,
- 1943, 2730, 4140, 6160,
- 7491, 8986, 11309, 12775,
- 14820, 16558, 17909, 19757,
- 21512, 23605, 27274, 29527,
- 2021, 2582, 4494, 5835,
- 6993, 8245, 9827, 14733,
- 16462, 17894, 19647, 21083,
- 23764, 26667, 29072, 30990,
- 1052, 1775, 3218, 4378,
- 7666, 9403, 11248, 13327,
- 14972, 17962, 20758, 22354,
- 25071, 27209, 29001, 30609,
- 2218, 2866, 4223, 5352,
- 6581, 9980, 11587, 13121,
- 15193, 16583, 18386, 20080,
- 22013, 25317, 28127, 29880,
- 2146, 2840, 4397, 5840,
- 7449, 8721, 10512, 11936,
- 13595, 17253, 19310, 20891,
- 23417, 25627, 27749, 30231,
- 1972, 2619, 3756, 6367,
- 7641, 8814, 12286, 13768,
- 15309, 18036, 19557, 20904,
- 22582, 24876, 27800, 30440,
- 2005, 2577, 4272, 7373,
- 8558, 10223, 11770, 13402,
- 16502, 18000, 19645, 21104,
- 22990, 26806, 29505, 30942,
- 1153, 1822, 3724, 5443,
- 6990, 8702, 10289, 11899,
- 13856, 15315, 17601, 21064,
- 23692, 26083, 28586, 30639,
- 1304, 1869, 3318, 7195,
- 9613, 10733, 12393, 13728,
- 15822, 17474, 18882, 20692,
- 23114, 25540, 27684, 29244,
- 2093, 2691, 4018, 6658,
- 7947, 9147, 10497, 11881,
- 15888, 17821, 19333, 21233,
- 23371, 25234, 27553, 29998,
- 575, 1331, 5304, 6910,
- 8425, 10086, 11577, 13498,
- 16444, 18527, 20565, 22847,
- 24914, 26692, 28759, 30157,
- 1435, 2024, 3283, 4156,
- 7611, 10592, 12049, 13927,
- 15459, 18413, 20495, 22270,
- 24222, 26093, 28065, 30099,
- 1632, 2168, 5540, 7478,
- 8630, 10391, 11644, 14321,
- 15741, 17357, 18756, 20434,
- 22799, 26060, 28542, 30696,
- 1407, 2245, 3405, 5639,
- 9419, 10685, 12104, 13495,
- 15535, 18357, 19996, 21689,
- 24351, 26550, 28853, 30564,
- 1675, 2226, 4005, 8223,
- 9975, 11155, 12822, 14316,
- 16504, 18137, 19574, 21050,
- 22759, 24912, 28296, 30634,
- 1080, 1614, 3622, 7565,
- 8748, 10303, 11713, 13848,
- 15633, 17434, 19761, 21825,
- 23571, 25393, 27406, 29063,
- 1693, 2229, 3456, 4354,
- 5670, 10890, 12563, 14167,
- 15879, 17377, 19817, 21971,
- 24094, 26131, 28298, 30099,
- 2042, 2959, 4195, 5740,
- 7106, 8267, 11126, 14973,
- 16914, 18295, 20532, 21982,
- 23711, 25769, 27609, 29351,
- 984, 1612, 3808, 5265,
- 6885, 8411, 9547, 10889,
- 12522, 16520, 19549, 21639,
- 23746, 26058, 28310, 30374,
- 2036, 2538, 4166, 7761,
- 9146, 10412, 12144, 13609,
- 15588, 17169, 18559, 20113,
- 21820, 24313, 28029, 30612,
- 1871, 2355, 4061, 5143,
- 7464, 10129, 11941, 15001,
- 16680, 18354, 19957, 22279,
- 24861, 26872, 28988, 30615,
- 2566, 3161, 4643, 6227,
- 7406, 9970, 11618, 13416,
- 15889, 17364, 19121, 20817,
- 22592, 24720, 28733, 31082,
- 1700, 2327, 4828, 5939,
- 7567, 9154, 11087, 12771,
- 14209, 16121, 20222, 22671,
- 24648, 26656, 28696, 30745,
- 3169, 3873, 5046, 6868,
- 8184, 9480, 12335, 14068,
- 15774, 17971, 20231, 21711,
- 23520, 25245, 27026, 28730,
- 1564, 2391, 4229, 6730,
- 8905, 10459, 13026, 15033,
- 17265, 19809, 21849, 23741,
- 25490, 27312, 29061, 30527,
- 2864, 3559, 4719, 6441,
- 9592, 11055, 12763, 14784,
- 16428, 18164, 20486, 22262,
- 24183, 26263, 28383, 30224,
- 2673, 3449, 4581, 5983,
- 6863, 8311, 12464, 13911,
- 15738, 17791, 19416, 21182,
- 24025, 26561, 28723, 30440,
- 2419, 3049, 4274, 6384,
- 8564, 9661, 11288, 12676,
- 14447, 17578, 19816, 21231,
- 23099, 25270, 26899, 28926,
- 1278, 2001, 3000, 5353,
- 9995, 11777, 13018, 14570,
- 16050, 17762, 19982, 21617,
- 23371, 25083, 27656, 30172,
- 932, 1624, 2798, 4570,
- 8592, 9988, 11552, 13050,
- 16921, 18677, 20415, 22810,
- 24817, 26819, 28804, 30385,
- 2324, 2973, 4156, 5702,
- 6919, 8806, 10259, 12503,
- 15015, 16567, 19418, 21375,
- 22943, 24550, 27024, 29849,
- 1564, 2373, 3455, 4907,
- 5975, 7436, 11786, 14505,
- 16107, 18148, 20019, 21653,
- 23740, 25814, 28578, 30372,
- 3025, 3729, 4866, 6520,
- 9487, 10943, 12358, 14258,
- 16174, 17501, 19476, 21408,
- 23227, 24906, 27347, 29407,
- 1270, 1965, 6802, 7995,
- 9204, 10828, 12507, 14230,
- 15759, 17860, 20369, 22502,
- 24633, 26514, 28535, 30525,
- 2210, 2749, 4266, 7487,
- 9878, 11018, 12823, 14431,
- 16247, 18626, 20450, 22054,
- 23739, 25291, 27074, 29169,
- 1275, 1926, 4330, 6573,
- 8441, 10920, 13260, 15008,
- 16927, 18573, 20644, 22217,
- 23983, 25474, 27372, 28645,
- 3015, 3670, 5086, 6372,
- 7888, 9309, 10966, 12642,
- 14495, 16172, 18080, 19972,
- 22454, 24899, 27362, 29975,
- 2882, 3733, 5113, 6482,
- 8125, 9685, 11598, 13288,
- 15405, 17192, 20178, 22426,
- 24801, 27014, 29212, 30811,
- 2300, 2968, 4101, 5442,
- 6327, 7910, 12455, 13862,
- 15747, 17505, 19053, 20679,
- 22615, 24658, 27499, 30065,
- 2257, 2940, 4430, 5991,
- 7042, 8364, 9414, 11224,
- 15723, 17420, 19253, 21469,
- 23915, 26053, 28430, 30384,
- 1227, 2045, 3818, 5011,
- 6990, 9231, 11024, 13011,
- 17341, 19017, 20583, 22799,
- 25195, 26876, 29351, 30805,
- 1354, 1924, 3789, 8077,
- 10453, 11639, 13352, 14817,
- 16743, 18189, 20095, 22014,
- 24593, 26677, 28647, 30256,
- 3142, 4049, 6197, 7417,
- 8753, 10156, 11533, 13181,
- 15947, 17655, 19606, 21402,
- 23487, 25659, 28123, 30304,
- 1317, 2263, 4725, 7611,
- 9667, 11634, 14143, 16258,
- 18724, 20698, 22379, 24007,
- 25775, 27251, 28930, 30593,
- 1570, 2323, 3818, 6215,
- 9893, 11556, 13070, 14631,
- 16152, 18290, 21386, 23346,
- 25114, 26923, 28712, 30168,
- 2297, 3905, 6287, 8558,
- 10668, 12766, 15019, 17102,
- 19036, 20677, 22341, 23871,
- 25478, 27085, 28851, 30520,
- 1915, 2507, 4033, 5749,
- 7059, 8871, 10659, 12198,
- 13937, 15383, 16869, 18707,
- 23175, 25818, 28514, 30501,
- 2404, 2918, 5190, 6252,
- 7426, 9887, 12387, 14795,
- 16754, 18368, 20338, 22003,
- 24236, 26456, 28490, 30397,
- 1621, 2227, 3479, 5085,
- 9425, 12892, 14246, 15652,
- 17205, 18674, 20446, 22209,
- 23778, 25867, 27931, 30093,
- 1869, 2390, 4105, 7021,
- 11221, 12775, 14059, 15590,
- 17024, 18608, 20595, 22075,
- 23649, 25154, 26914, 28671,
- 2551, 3252, 4688, 6562,
- 7869, 9125, 10475, 11800,
- 15402, 18780, 20992, 22555,
- 24289, 25968, 27465, 29232,
- 2705, 3493, 4735, 6360,
- 7905, 9352, 11538, 13430,
- 15239, 16919, 18619, 20094,
- 21800, 23342, 25200, 29257,
- 2166, 2791, 4011, 5081,
- 5896, 9038, 13407, 14703,
- 16543, 18189, 19896, 21857,
- 24872, 26971, 28955, 30514,
- 1865, 3021, 4696, 6534,
- 8343, 9914, 12789, 14103,
- 16533, 17729, 21340, 22439,
- 24873, 26330, 28428, 30154,
- 3369, 4345, 6573, 8763,
- 10309, 11713, 13367, 14784,
- 16483, 18145, 19839, 21247,
- 23292, 25477, 27555, 29447,
- 1265, 2184, 5443, 7893,
- 10591, 13139, 15105, 16639,
- 18402, 19826, 21419, 22995,
- 24719, 26437, 28363, 30125,
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- 8662, 10764, 12832, 14978,
- 16972, 18794, 20932, 22547,
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- 3419, 4528, 6602, 7890,
- 9508, 10875, 12771, 14357,
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- 9211, 10480, 12047, 13583,
- 15182, 16662, 18502, 20092,
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- 2000, 2550, 4067, 6837,
- 9628, 11002, 12594, 14098,
- 15589, 17195, 18679, 20099,
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- 2844, 3302, 5103, 6107,
- 6911, 8598, 12416, 14054,
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- 23952, 25771, 27658, 30026,
- 4043, 5150, 7268, 9056,
- 10916, 12638, 14543, 16184,
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- 7454, 10220, 12980, 14698,
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- 24279, 25777, 27847, 30458,
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- 10985, 12352, 13795, 15233,
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- 24197, 26291, 28403, 30132,
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- 6367, 8154, 13125, 16049,
- 17561, 19125, 21258, 22762,
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- 16576, 18984, 21376, 23319,
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- 7723, 10386, 12981, 15322,
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- 4740, 5169, 5796, 6485,
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- -844, -455, -181, -12,
- 85, 85, 164, 195,
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- 939, 659, 442, 351,
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- 167, 154, 172, 237,
- -45, -183, -228, -486,
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- -457, -392, -769, -840,
- 20, -117, -194, -189,
- -173, -173, -33, 32,
- 174, 144, 115, 167,
- 57, 44, 14, 147,
- 96, -54, -142, -129,
- -254, -331, 304, 310,
- -52, -419, -846, -1060,
- -88, -123, -202, -343,
- -554, -961, -951, 327,
- 159, 81, 255, 227,
- 120, 203, 256, 192,
- 164, 224, 290, 195,
- 216, 209, 128, 832,
- 1028, 889, 698, 504,
- 408, 355, 218, 32,
- -115, -84, -276, -100,
- -312, -484, 899, 682,
- 465, 456, 241, -12,
- -275, -425, -461, -367,
- -33, -28, -102, -194,
- -527, 863, 906, 463,
- 245, 13, -212, -305,
- -105, 163, 279, 176,
- 93, 67, 115, 192,
- 61, -50, -132, -175,
- -224, -271, -629, -252,
- 1158, 972, 638, 280,
- 300, 326, 143, -152,
- -214, -287, 53, -42,
- -236, -352, -423, -248,
- -129, -163, -178, -119,
- 85, 57, 514, 382,
- 374, 402, 424, 423,
- 271, 197, 97, 40,
- 39, -97, -191, -164,
- -230, -256, -410, 396,
- 327, 127, 10, -119,
- -167, -291, -274, -141,
- -99, -226, -218, -139,
- -224, -209, -268, -442,
- -413, 222, 58, 521,
- 344, 258, 76, -42,
- -142, -165, -123, -92,
- 47, 8, -3, -191,
- -11, -164, -167, -351,
- -740, 311, 538, 291,
- 184, 29, -105, 9,
- -30, -54, -17, -77,
- -271, -412, -622, -648,
- 476, 186, -66, -197,
- -73, -94, -15, 47,
- 28, 112, -58, -33,
- 65, 19, 84, 86,
- 276, 114, 472, 786,
- 799, 625, 415, 178,
- -35, -26, 5, 9,
- 83, 39, 37, 39,
- -184, -374, -265, -362,
- -501, 337, 716, 478,
- -60, -125, -163, 362,
- 17, -122, -233, 279,
- 138, 157, 318, 193,
- 189, 209, 266, 252,
- -46, -56, -277, -429,
- 464, 386, 142, 44,
- -43, 66, 264, 182,
- 47, 14, -26, -79,
- 49, 15, -128, -203,
- -400, -478, 325, 27,
- 234, 411, 205, 129,
- 12, 58, 123, 57,
- 171, 137, 96, 128,
- -32, 134, -12, 57,
- 119, 26, -22, -165,
- -500, -701, -528, -116,
- 64, -8, 97, -9,
- -162, -66, -156, -194,
- -303, -546, -341, 546,
- 358, 95, 45, 76,
- 270, 403, 205, 100,
- 123, 50, -53, -144,
- -110, -13, 32, -228,
- -130, 353, 296, 56,
- -372, -253, 365, 73,
- 10, -34, -139, -191,
- -96, 5, 44, -85,
- -179, -129, -192, -246,
- -85, -110, -155, -44,
- -27, 145, 138, 79,
- 32, -148, -577, -634,
- 191, 94, -9, -35,
- -77, -84, -56, -171,
- -298, -271, -243, -156,
- -328, -235, -76, -128,
- -121, 129, 13, -22,
- 32, 45, -248, -65,
- 193, -81, 299, 57,
- -147, 192, -165, -354,
- -334, -106, -156, -40,
- -3, -68, 124, -257,
- 78, 124, 170, 412,
- 227, 105, -104, 12,
- 154, 250, 274, 258,
- 4, -27, 235, 152,
- 51, 338, 300, 7,
- -314, -411, 215, 170,
- -9, -93, -77, 76,
- 67, 54, 200, 315,
- 163, 72, -91, -402,
- 158, 187, -156, -91,
- 290, 267, 167, 91,
- 140, 171, 112, 9,
- -42, -177, -440, 385,
- 80, 15, 172, 129,
- 41, -129, -372, -24,
- -75, -30, -170, 10,
- -118, 57, 78, -101,
- 232, 161, 123, 256,
- 277, 101, -192, -629,
- -100, -60, -232, 66,
- 13, -13, -80, -239,
- 239, 37, 32, 89,
- -319, -579, 450, 360,
- 3, -29, -299, -89,
- -54, -110, -246, -164,
- 6, -188, 338, 176,
- -92, 197, 137, 134,
- 12, -2, 56, -183,
- 114, -36, -131, -204,
- 75, -25, -174, 191,
- -15, -290, -429, -267,
- 79, 37, 106, 23,
- -384, 425, 70, -14,
- 212, 105, 15, -2,
- -42, -37, -123, 108,
- 28, -48, 193, 197,
- 173, -33, 37, 73,
- -57, 256, 137, -58,
- -430, -228, 217, -51,
- -10, -58, -6, 22,
- 104, 61, -119, 169,
- 144, 16, -46, -394,
- 60, 454, -80, -298,
- -65, 25, 0, -24,
- -65, -417, 465, 276,
- -3, -194, -13, 130,
- 19, -6, -21, -24,
- -180, -53, -85, 20,
- 118, 147, 113, -75,
- -289, 226, -122, 227,
- 270, 125, 109, 197,
- 125, 138, 44, 60,
- 25, -55, -167, -32,
- -139, -193, -173, -316,
- 287, -208, 253, 239,
- 27, -80, -188, -28,
- -182, -235, 156, -117,
- 128, -48, -58, -226,
- 172, 181, 167, 19,
- 62, 10, 2, 181,
- 151, 108, -16, -11,
- -78, -331, 411, 133,
- 17, 104, 64, -184,
- 24, -30, -3, -283,
- 121, 204, -8, -199,
- -21, -80, -169, -157,
- -191, -136, 81, 155,
- 14, -131, 244, 74,
- -57, -47, -280, 347,
- 111, -77, -128, -142,
- -194, -125, -6, -68,
- 91, 1, 23, 14,
- -154, -34, 23, -38,
- -343, 503, 146, -38,
- -46, -41, 58, 31,
- 63, -48, -117, 45,
- 28, 1, -89, -5,
- -44, -29, -448, 487,
- 204, 81, 46, -106,
- -302, 380, 120, -38,
- -12, -39, 70, -3,
- 25, -65, 30, -11,
- 34, -15, 22, -115,
- 0, -79, -83, 45,
- 114, 43, 150, 36,
- 233, 149, 195, 5,
- 25, -52, -475, 274,
- 28, -39, -8, -66,
- -255, 258, 56, 143,
- -45, -190, 165, -60,
- 20, 2, 125, -129,
- 51, -8, -335, 288,
- 38, 59, 25, -42,
- 23, -118, -112, 11,
- -55, -133, -109, 24,
- -105, 78, -64, -245,
- 202, -65, -127, 162,
- 40, -94, 89, -85,
- -119, -103, 97, 9,
- -70, -28, 194, 86,
- -112, -92, -114, 74,
- -49, 46, -84, -178,
- 113, 52, -205, 333,
- 88, 222, 56, -55,
- 13, 86, 4, -77,
- 224, 114, -105, 112,
- 125, -29, -18, -144,
- 22, -58, -99, 28,
- 114, -66, -32, -169,
- -314, 285, 72, -74,
- 179, 28, -79, -182,
- 13, -55, 147, 13,
- 12, -54, 31, -84,
- -17, -75, -228, 83,
- -375, 436, 110, -63,
- -27, -136, 169, -56,
- -8, -171, 184, -42,
- 148, 68, 204, 235,
- 110, -229, 91, 171,
- -43, -3, -26, -99,
- -111, 71, -170, 202,
- -67, 181, -37, 109,
- -120, 3, -55, -260,
- -16, 152, 91, 142,
- 42, 44, 134, 47,
- 17, -35, 22, 79,
- -169, 41, 46, 277,
- -93, -49, -126, 37,
- -103, -34, -22, -90,
- -134, -205, 92, -9,
- 1, -195, -239, 45,
- 54, 18, -23, -1,
- -80, -98, -20, -261,
- 306, 72, 20, -89,
- -217, 11, 6, -82,
- 89, 13, -129, -89,
- 83, -71, -55, 130,
- -98, -146, -27, -57,
- 53, 275, 17, 170,
- -5, -54, 132, -64,
- 72, 160, -125, -168,
- 72, 40, 170, 78,
- 248, 116, 20, 84,
- 31, -34, 190, 38,
- 13, -106, 225, 27,
- -168, 24, -157, -122,
- 165, 11, -161, -213,
- -12, -51, -101, 42,
- 101, 27, 55, 111,
- 75, 71, -96, -1,
- 65, -277, 393, -26,
- -44, -68, -84, -66,
- -95, 235, 179, -25,
- -41, 27, -91, -128,
- -222, 146, -72, -30,
- -24, 55, -126, -68,
- -58, -127, 13, -97,
- -106, 174, -100, 155,
- 101, -146, -21, 261,
- 22, 38, -66, 65,
- 4, 70, 64, 144,
- 59, 213, 71, -337,
- 303, -52, 51, -56,
- 1, 10, -15, -5,
- 34, 52, 228, 131,
- 161, -127, -214, 238,
- 123, 64, -147, -50,
- -34, -127, 204, 162,
- 85, 41, 5, -140,
- 73, -150, 56, -96,
- -66, -20, 2, -235,
- 59, -22, -107, 150,
- -16, -47, -4, 81,
- -67, 167, 149, 149,
- -157, 288, -156, -27,
- -8, 18, 83, -24,
- -41, -167, 158, -100,
- 93, 53, 201, 15,
- 42, 266, 278, -12,
- -6, -37, 85, 6,
- 20, -188, -271, 107,
- -13, -80, 51, 202,
- 173, -69, 78, -188,
- 46, 4, 153, 12,
- -138, 169, 5, -58,
- -123, -108, -243, 150,
- 10, -191, 246, -15,
- 38, 25, -10, 14,
- 61, 50, -206, -215,
- -220, 90, 5, -149,
- -219, 56, 142, 24,
- -376, 77, -80, 75,
- 6, 42, -101, 16,
- 56, 14, -57, 3,
- -17, 80, 57, -36,
- 88, -59, -97, -19,
- -148, 46, -219, 226,
- 114, -4, -72, -15,
- 37, -49, -28, 247,
- 44, 123, 47, -122,
- -38, 17, 4, -113,
- -32, -224, 154, -134,
- 196, 71, -267, -85,
- 28, -70, 89, -120,
- 99, -2, 64, 76,
- -166, -48, 189, -35,
- -92, -169, -123, 339,
- 38, -25, 38, -35,
- 225, -139, -50, -63,
- 246, 60, -185, -109,
- -49, -53, -167, 51,
- 149, 60, -101, -33,
- 25, -76, 120, 32,
- -30, -83, 102, 91,
- -186, -261, 131, -197
-};
-
-const SKP_Silk_NLSF_CBS SKP_Silk_NLSF_CB0_16_Stage_info[ NLSF_MSVQ_CB0_16_STAGES ] =
-{
- { 128, &SKP_Silk_NLSF_MSVQ_CB0_16_Q15[ 16 * 0 ], &SKP_Silk_NLSF_MSVQ_CB0_16_rates_Q5[ 0 ] },
- { 16, &SKP_Silk_NLSF_MSVQ_CB0_16_Q15[ 16 * 128 ], &SKP_Silk_NLSF_MSVQ_CB0_16_rates_Q5[ 128 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB0_16_Q15[ 16 * 144 ], &SKP_Silk_NLSF_MSVQ_CB0_16_rates_Q5[ 144 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB0_16_Q15[ 16 * 152 ], &SKP_Silk_NLSF_MSVQ_CB0_16_rates_Q5[ 152 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB0_16_Q15[ 16 * 160 ], &SKP_Silk_NLSF_MSVQ_CB0_16_rates_Q5[ 160 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB0_16_Q15[ 16 * 168 ], &SKP_Silk_NLSF_MSVQ_CB0_16_rates_Q5[ 168 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB0_16_Q15[ 16 * 176 ], &SKP_Silk_NLSF_MSVQ_CB0_16_rates_Q5[ 176 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB0_16_Q15[ 16 * 184 ], &SKP_Silk_NLSF_MSVQ_CB0_16_rates_Q5[ 184 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB0_16_Q15[ 16 * 192 ], &SKP_Silk_NLSF_MSVQ_CB0_16_rates_Q5[ 192 ] },
- { 16, &SKP_Silk_NLSF_MSVQ_CB0_16_Q15[ 16 * 200 ], &SKP_Silk_NLSF_MSVQ_CB0_16_rates_Q5[ 200 ] }
-};
-
-const SKP_Silk_NLSF_CB_struct SKP_Silk_NLSF_CB0_16 =
-{
- NLSF_MSVQ_CB0_16_STAGES,
- SKP_Silk_NLSF_CB0_16_Stage_info,
- SKP_Silk_NLSF_MSVQ_CB0_16_ndelta_min_Q15,
- SKP_Silk_NLSF_MSVQ_CB0_16_CDF,
- SKP_Silk_NLSF_MSVQ_CB0_16_CDF_start_ptr,
- SKP_Silk_NLSF_MSVQ_CB0_16_CDF_middle_idx
-};
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_TABLES_NLSF_CB0_16_H
-#define SKP_SILK_TABLES_NLSF_CB0_16_H
-
-#include "SKP_Silk_define.h"
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-#define NLSF_MSVQ_CB0_16_STAGES 10
-#define NLSF_MSVQ_CB0_16_VECTORS 216
-
-/* NLSF codebook entropy coding tables */
-extern const SKP_uint16 SKP_Silk_NLSF_MSVQ_CB0_16_CDF[ NLSF_MSVQ_CB0_16_VECTORS + NLSF_MSVQ_CB0_16_STAGES ];
-extern const SKP_uint16 * const SKP_Silk_NLSF_MSVQ_CB0_16_CDF_start_ptr[ NLSF_MSVQ_CB0_16_STAGES ];
-extern const SKP_int SKP_Silk_NLSF_MSVQ_CB0_16_CDF_middle_idx[ NLSF_MSVQ_CB0_16_STAGES ];
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/**********************************************/
-/* This file has been automatically generated */
-/* */
-/* ROM usage: 0.19 + 1.61 kB */
-/**********************************************/
-
-#include "SKP_Silk_structs.h"
-#include "SKP_Silk_tables_NLSF_CB1_10.h"
-#include "SKP_Silk_tables.h"
-
-const SKP_uint16 SKP_Silk_NLSF_MSVQ_CB1_10_CDF[ NLSF_MSVQ_CB1_10_VECTORS + NLSF_MSVQ_CB1_10_STAGES ] =
-{
- 0,
- 17096,
- 24130,
- 28997,
- 33179,
- 36696,
- 40213,
- 42493,
- 44252,
- 45973,
- 47551,
- 49095,
- 50542,
- 51898,
- 53196,
- 54495,
- 55685,
- 56851,
- 57749,
- 58628,
- 59435,
- 60207,
- 60741,
- 61220,
- 61700,
- 62179,
- 62659,
- 63138,
- 63617,
- 64097,
- 64576,
- 65056,
- 65535,
- 0,
- 20378,
- 33032,
- 40395,
- 46721,
- 51707,
- 56585,
- 61157,
- 65535,
- 0,
- 15055,
- 25472,
- 35447,
- 42501,
- 48969,
- 54773,
- 60212,
- 65535,
- 0,
- 12069,
- 22440,
- 32812,
- 40145,
- 46870,
- 53595,
- 59630,
- 65535,
- 0,
- 10839,
- 19954,
- 27957,
- 35961,
- 43965,
- 51465,
- 58805,
- 65535,
- 0,
- 8933,
- 17674,
- 26415,
- 34785,
- 42977,
- 50820,
- 58496,
- 65535
-};
-
-const SKP_uint16 * const SKP_Silk_NLSF_MSVQ_CB1_10_CDF_start_ptr[ NLSF_MSVQ_CB1_10_STAGES ] =
-{
- &SKP_Silk_NLSF_MSVQ_CB1_10_CDF[ 0 ],
- &SKP_Silk_NLSF_MSVQ_CB1_10_CDF[ 33 ],
- &SKP_Silk_NLSF_MSVQ_CB1_10_CDF[ 42 ],
- &SKP_Silk_NLSF_MSVQ_CB1_10_CDF[ 51 ],
- &SKP_Silk_NLSF_MSVQ_CB1_10_CDF[ 60 ],
- &SKP_Silk_NLSF_MSVQ_CB1_10_CDF[ 69 ]
-};
-
-const SKP_int SKP_Silk_NLSF_MSVQ_CB1_10_CDF_middle_idx[ NLSF_MSVQ_CB1_10_STAGES ] =
-{
- 5,
- 3,
- 4,
- 4,
- 5,
- 5
-};
-
-const SKP_int16 SKP_Silk_NLSF_MSVQ_CB1_10_rates_Q5[ NLSF_MSVQ_CB1_10_VECTORS ] =
-{
- 62, 103,
- 120, 127,
- 135, 135,
- 155, 167,
- 168, 172,
- 173, 176,
- 179, 181,
- 181, 185,
- 186, 198,
- 199, 203,
- 205, 222,
- 227, 227,
- 227, 227,
- 227, 227,
- 227, 227,
- 227, 227,
- 54, 76,
- 101, 108,
- 119, 120,
- 123, 125,
- 68, 85,
- 87, 103,
- 107, 112,
- 115, 116,
- 78, 85,
- 85, 101,
- 105, 105,
- 110, 111,
- 83, 91,
- 97, 97,
- 97, 100,
- 101, 105,
- 92, 93,
- 93, 95,
- 96, 98,
- 99, 103
-};
-
-const SKP_int SKP_Silk_NLSF_MSVQ_CB1_10_ndelta_min_Q15[ 10 + 1 ] =
-{
- 462,
- 3,
- 64,
- 74,
- 98,
- 50,
- 97,
- 68,
- 120,
- 53,
- 639
-};
-
-const SKP_int16 SKP_Silk_NLSF_MSVQ_CB1_10_Q15[ 10 * NLSF_MSVQ_CB1_10_VECTORS ] =
-{
- 1877, 4646,
- 7712, 10745,
- 13964, 17028,
- 20239, 23182,
- 26471, 29287,
- 1612, 3278,
- 7086, 9975,
- 13228, 16264,
- 19596, 22690,
- 26037, 28965,
- 2169, 3830,
- 6460, 8958,
- 11960, 14750,
- 18408, 21659,
- 25018, 28043,
- 3680, 6024,
- 8986, 12256,
- 15201, 18188,
- 21741, 24460,
- 27484, 30059,
- 2584, 5187,
- 7799, 10902,
- 13179, 15765,
- 19017, 22431,
- 25891, 28698,
- 3731, 5751,
- 8650, 11742,
- 15090, 17407,
- 20391, 23421,
- 26228, 29247,
- 2107, 6323,
- 8915, 12226,
- 14775, 17791,
- 20664, 23679,
- 26829, 29353,
- 1677, 2870,
- 5386, 8077,
- 11817, 15176,
- 18657, 22006,
- 25513, 28689,
- 2111, 3625,
- 7027, 10588,
- 14059, 17193,
- 21137, 24260,
- 27577, 30036,
- 2428, 4010,
- 5765, 9376,
- 13805, 15821,
- 19444, 22389,
- 25295, 29310,
- 2256, 4628,
- 8377, 12441,
- 15283, 19462,
- 22257, 25551,
- 28432, 30304,
- 2352, 3675,
- 6129, 11868,
- 14551, 16655,
- 19624, 21883,
- 26526, 28849,
- 5243, 7248,
- 10558, 13269,
- 15651, 17919,
- 21141, 23827,
- 27102, 29519,
- 4422, 6725,
- 10449, 13273,
- 16124, 19921,
- 22826, 26061,
- 28763, 30583,
- 4508, 6291,
- 9504, 11809,
- 13827, 15950,
- 19077, 22084,
- 25740, 28658,
- 2540, 4297,
- 8579, 13578,
- 16634, 19101,
- 21547, 23887,
- 26777, 29146,
- 3377, 6358,
- 10224, 14518,
- 17905, 21056,
- 23637, 25784,
- 28161, 30109,
- 4177, 5942,
- 8159, 10108,
- 12130, 15470,
- 20191, 23326,
- 26782, 29359,
- 2492, 3801,
- 6144, 9825,
- 16000, 18671,
- 20893, 23663,
- 25899, 28974,
- 3011, 4727,
- 6834, 10505,
- 12465, 14496,
- 17065, 20052,
- 25265, 28057,
- 4149, 7197,
- 12338, 15076,
- 18002, 20190,
- 22187, 24723,
- 27083, 29125,
- 2975, 4578,
- 6448, 8378,
- 9671, 13225,
- 19502, 22277,
- 26058, 28850,
- 4102, 5760,
- 7744, 9484,
- 10744, 12308,
- 14677, 19607,
- 24841, 28381,
- 4931, 9287,
- 12477, 13395,
- 13712, 14351,
- 16048, 19867,
- 24188, 28994,
- 4141, 7867,
- 13140, 17720,
- 20064, 21108,
- 21692, 22722,
- 23736, 27449,
- 4011, 8720,
- 13234, 16206,
- 17601, 18289,
- 18524, 19689,
- 23234, 27882,
- 3420, 5995,
- 11230, 15117,
- 15907, 16783,
- 17762, 23347,
- 26898, 29946,
- 3080, 6786,
- 10465, 13676,
- 18059, 23615,
- 27058, 29082,
- 29563, 29905,
- 3038, 5620,
- 9266, 12870,
- 18803, 19610,
- 20010, 20802,
- 23882, 29306,
- 3314, 6420,
- 9046, 13262,
- 15869, 23117,
- 23667, 24215,
- 24487, 25915,
- 3469, 6963,
- 10103, 15282,
- 20531, 23240,
- 25024, 26021,
- 26736, 27255,
- 3041, 6459,
- 9777, 12896,
- 16315, 19410,
- 24070, 29353,
- 31795, 32075,
- -200, -134,
- -113, -204,
- -347, -440,
- -352, -211,
- -418, -172,
- -313, 59,
- 495, 772,
- 721, 614,
- 334, 444,
- 225, 242,
- 161, 16,
- 274, 564,
- -73, -188,
- -395, -171,
- 777, 508,
- 1340, 1145,
- 699, 196,
- 223, 173,
- 90, 25,
- -26, 18,
- 133, -105,
- -360, -277,
- 859, 634,
- 41, -557,
- -768, -926,
- -601, -1021,
- -1189, -365,
- 225, 107,
- 374, -50,
- 433, 417,
- 156, 39,
- -597, -1397,
- -1594, -592,
- -485, -292,
- 253, 87,
- -0, -6,
- -25, -345,
- -240, 120,
- 1261, 946,
- 166, -277,
- 241, 167,
- 170, 429,
- 518, 714,
- 602, 254,
- 134, 92,
- -152, -324,
- -394, 49,
- -151, -304,
- -724, -657,
- -162, -369,
- -35, 3,
- -2, -312,
- -200, -92,
- -227, 242,
- 628, 565,
- -124, 1056,
- 770, 101,
- -84, -33,
- 4, -192,
- -272, 5,
- -627, -977,
- 419, 472,
- 53, -103,
- 145, 322,
- -95, -31,
- -100, -303,
- -560, -1067,
- -413, 714,
- 283, 2,
- -223, -367,
- 523, 360,
- -38, -115,
- 378, -591,
- -718, 448,
- -481, -274,
- 180, -88,
- -581, -157,
- -696, -1265,
- 394, -479,
- -23, 124,
- -43, 19,
- -113, -236,
- -412, -659,
- -200, 2,
- -69, -342,
- 199, 55,
- 58, -36,
- -51, -62,
- 507, 507,
- 427, 442,
- 36, 601,
- -141, 68,
- 274, 274,
- 68, -12,
- -4, 71,
- -193, -464,
- -425, -383,
- 408, 203,
- -337, 236,
- 410, -59,
- -25, -341,
- -449, 28,
- -9, 90,
- 332, -14,
- -905, 96,
- -540, -242,
- 679, -59,
- 192, -24,
- 60, -217,
- 5, -37,
- 179, -20,
- 311, 519,
- 274, 72,
- -326, -1030,
- -262, 213,
- 380, 82,
- 328, 411,
- -540, 574,
- -283, 151,
- 181, -402,
- -278, -240,
- -110, -227,
- -264, -89,
- -250, -259,
- -27, 106,
- -239, -98,
- -390, 118,
- 61, 104,
- 294, 532,
- 92, -13,
- 60, -233,
- 335, 541,
- 307, -26,
- -110, -91,
- -231, -460,
- 170, 201,
- 96, -372,
- 132, 435,
- -302, 216,
- -279, -41,
- 74, 190,
- 368, 273,
- -186, -608,
- -157, 159,
- 12, 278,
- 245, 307,
- 25, -187,
- -16, 55,
- 30, -163,
- 548, -307,
- 106, -5,
- 27, 330,
- -416, 475,
- 438, -235,
- 104, 137,
- 21, -5,
- -300, -468,
- 521, -347,
- 170, -200,
- -219, 308,
- -122, -133,
- 219, -16,
- 359, 412,
- -89, -111,
- 48, 322,
- 142, 177,
- -286, -127,
- -39, -63,
- -42, -451,
- 160, 308,
- -57, 193,
- -48, 74,
- -346, 59,
- -27, 27,
- -469, -277,
- -344, 282,
- 262, 122,
- 171, -249,
- 27, 258,
- 188, -3,
- 67, -206,
- -284, 291,
- -117, -88,
- -477, 375,
- 50, 106,
- 99, -182,
- 438, -376,
- -401, -49,
- 119, -23,
- -10, -48,
- -116, -200,
- -310, 121,
- 73, 7,
- 237, -226,
- 139, -456,
- 397, 35,
- 3, -108,
- 323, -75,
- 332, 198,
- -99, -21
-};
-
-const SKP_Silk_NLSF_CBS SKP_Silk_NLSF_CB1_10_Stage_info[ NLSF_MSVQ_CB1_10_STAGES ] =
-{
- { 32, &SKP_Silk_NLSF_MSVQ_CB1_10_Q15[ 10 * 0 ], &SKP_Silk_NLSF_MSVQ_CB1_10_rates_Q5[ 0 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB1_10_Q15[ 10 * 32 ], &SKP_Silk_NLSF_MSVQ_CB1_10_rates_Q5[ 32 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB1_10_Q15[ 10 * 40 ], &SKP_Silk_NLSF_MSVQ_CB1_10_rates_Q5[ 40 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB1_10_Q15[ 10 * 48 ], &SKP_Silk_NLSF_MSVQ_CB1_10_rates_Q5[ 48 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB1_10_Q15[ 10 * 56 ], &SKP_Silk_NLSF_MSVQ_CB1_10_rates_Q5[ 56 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB1_10_Q15[ 10 * 64 ], &SKP_Silk_NLSF_MSVQ_CB1_10_rates_Q5[ 64 ] }
-};
-
-const SKP_Silk_NLSF_CB_struct SKP_Silk_NLSF_CB1_10 =
-{
- NLSF_MSVQ_CB1_10_STAGES,
- SKP_Silk_NLSF_CB1_10_Stage_info,
- SKP_Silk_NLSF_MSVQ_CB1_10_ndelta_min_Q15,
- SKP_Silk_NLSF_MSVQ_CB1_10_CDF,
- SKP_Silk_NLSF_MSVQ_CB1_10_CDF_start_ptr,
- SKP_Silk_NLSF_MSVQ_CB1_10_CDF_middle_idx
-};
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_TABLES_NLSF_CB1_10_H
-#define SKP_SILK_TABLES_NLSF_CB1_10_H
-
-#include "SKP_Silk_define.h"
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-#define NLSF_MSVQ_CB1_10_STAGES 6
-#define NLSF_MSVQ_CB1_10_VECTORS 72
-
-/* NLSF codebook entropy coding tables */
-extern const SKP_uint16 SKP_Silk_NLSF_MSVQ_CB1_10_CDF[ NLSF_MSVQ_CB1_10_VECTORS + NLSF_MSVQ_CB1_10_STAGES ];
-extern const SKP_uint16 * const SKP_Silk_NLSF_MSVQ_CB1_10_CDF_start_ptr[ NLSF_MSVQ_CB1_10_STAGES ];
-extern const SKP_int SKP_Silk_NLSF_MSVQ_CB1_10_CDF_middle_idx[ NLSF_MSVQ_CB1_10_STAGES ];
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/**********************************************/
-/* This file has been automatically generated */
-/* */
-/* ROM usage: 0.29 + 3.57 kB */
-/**********************************************/
-
-#include "SKP_Silk_structs.h"
-#include "SKP_Silk_tables_NLSF_CB1_16.h"
-#include "SKP_Silk_tables.h"
-
-const SKP_uint16 SKP_Silk_NLSF_MSVQ_CB1_16_CDF[ NLSF_MSVQ_CB1_16_VECTORS + NLSF_MSVQ_CB1_16_STAGES ] =
-{
- 0,
- 19099,
- 26957,
- 30639,
- 34242,
- 37546,
- 40447,
- 43287,
- 46005,
- 48445,
- 49865,
- 51284,
- 52673,
- 53975,
- 55221,
- 56441,
- 57267,
- 58025,
- 58648,
- 59232,
- 59768,
- 60248,
- 60729,
- 61210,
- 61690,
- 62171,
- 62651,
- 63132,
- 63613,
- 64093,
- 64574,
- 65054,
- 65535,
- 0,
- 28808,
- 38775,
- 46801,
- 51785,
- 55886,
- 59410,
- 62572,
- 65535,
- 0,
- 27376,
- 38639,
- 45052,
- 51465,
- 55448,
- 59021,
- 62594,
- 65535,
- 0,
- 33403,
- 39569,
- 45102,
- 49961,
- 54047,
- 57959,
- 61788,
- 65535,
- 0,
- 25851,
- 43356,
- 47828,
- 52204,
- 55964,
- 59413,
- 62507,
- 65535,
- 0,
- 34277,
- 40337,
- 45432,
- 50311,
- 54326,
- 58171,
- 61853,
- 65535,
- 0,
- 33538,
- 39865,
- 45302,
- 50076,
- 54549,
- 58478,
- 62159,
- 65535,
- 0,
- 27445,
- 35258,
- 40665,
- 46072,
- 51362,
- 56540,
- 61086,
- 65535,
- 0,
- 22080,
- 30779,
- 37065,
- 43085,
- 48849,
- 54613,
- 60133,
- 65535,
- 0,
- 13417,
- 21748,
- 30078,
- 38231,
- 46383,
- 53091,
- 59515,
- 65535
-};
-
-const SKP_uint16 * const SKP_Silk_NLSF_MSVQ_CB1_16_CDF_start_ptr[ NLSF_MSVQ_CB1_16_STAGES ] =
-{
- &SKP_Silk_NLSF_MSVQ_CB1_16_CDF[ 0 ],
- &SKP_Silk_NLSF_MSVQ_CB1_16_CDF[ 33 ],
- &SKP_Silk_NLSF_MSVQ_CB1_16_CDF[ 42 ],
- &SKP_Silk_NLSF_MSVQ_CB1_16_CDF[ 51 ],
- &SKP_Silk_NLSF_MSVQ_CB1_16_CDF[ 60 ],
- &SKP_Silk_NLSF_MSVQ_CB1_16_CDF[ 69 ],
- &SKP_Silk_NLSF_MSVQ_CB1_16_CDF[ 78 ],
- &SKP_Silk_NLSF_MSVQ_CB1_16_CDF[ 87 ],
- &SKP_Silk_NLSF_MSVQ_CB1_16_CDF[ 96 ],
- &SKP_Silk_NLSF_MSVQ_CB1_16_CDF[ 105 ]
-};
-
-const SKP_int SKP_Silk_NLSF_MSVQ_CB1_16_CDF_middle_idx[ NLSF_MSVQ_CB1_16_STAGES ] =
-{
- 5,
- 2,
- 2,
- 2,
- 2,
- 2,
- 2,
- 3,
- 3,
- 4
-};
-
-const SKP_int16 SKP_Silk_NLSF_MSVQ_CB1_16_rates_Q5[ NLSF_MSVQ_CB1_16_VECTORS ] =
-{
- 57, 98,
- 133, 134,
- 138, 144,
- 145, 147,
- 152, 177,
- 177, 178,
- 181, 183,
- 184, 202,
- 206, 215,
- 218, 222,
- 227, 227,
- 227, 227,
- 227, 227,
- 227, 227,
- 227, 227,
- 227, 227,
- 38, 87,
- 97, 119,
- 128, 135,
- 140, 143,
- 40, 81,
- 107, 107,
- 129, 134,
- 134, 143,
- 31, 109,
- 114, 120,
- 128, 130,
- 131, 132,
- 43, 61,
- 124, 125,
- 132, 136,
- 141, 142,
- 30, 110,
- 118, 120,
- 129, 131,
- 133, 133,
- 31, 108,
- 115, 121,
- 124, 130,
- 133, 137,
- 40, 98,
- 115, 115,
- 116, 117,
- 123, 124,
- 50, 93,
- 108, 110,
- 112, 112,
- 114, 115,
- 73, 95,
- 95, 96,
- 96, 105,
- 107, 110
-};
-
-const SKP_int SKP_Silk_NLSF_MSVQ_CB1_16_ndelta_min_Q15[ 16 + 1 ] =
-{
- 148,
- 3,
- 60,
- 68,
- 117,
- 86,
- 121,
- 124,
- 152,
- 153,
- 207,
- 151,
- 225,
- 239,
- 126,
- 183,
- 792
-};
-
-const SKP_int16 SKP_Silk_NLSF_MSVQ_CB1_16_Q15[ 16 * NLSF_MSVQ_CB1_16_VECTORS ] =
-{
- 1309, 3060, 5071, 6996,
- 9028, 10938, 12934, 14891,
- 16933, 18854, 20792, 22764,
- 24753, 26659, 28626, 30501,
- 1264, 2745, 4610, 6408,
- 8286, 10043, 12084, 14108,
- 16118, 18163, 20095, 22164,
- 24264, 26316, 28329, 30251,
- 1044, 2080, 3672, 5179,
- 7140, 9100, 11070, 13065,
- 15423, 17790, 19931, 22101,
- 24290, 26361, 28499, 30418,
- 1131, 2476, 4478, 6149,
- 7902, 9875, 11938, 13809,
- 15869, 17730, 19948, 21707,
- 23761, 25535, 27426, 28917,
- 1040, 2004, 4026, 6100,
- 8432, 10494, 12610, 14694,
- 16797, 18775, 20799, 22782,
- 24772, 26682, 28631, 30516,
- 2310, 3812, 5913, 7933,
- 10033, 11881, 13885, 15798,
- 17751, 19576, 21482, 23276,
- 25157, 27010, 28833, 30623,
- 1254, 2847, 5013, 6781,
- 8626, 10370, 12726, 14633,
- 16281, 17852, 19870, 21472,
- 23002, 24629, 26710, 27960,
- 1468, 3059, 4987, 7026,
- 8741, 10412, 12281, 14020,
- 15970, 17723, 19640, 21522,
- 23472, 25661, 27986, 30225,
- 2171, 3566, 5605, 7384,
- 9404, 11220, 13030, 14758,
- 16687, 18417, 20346, 22091,
- 24055, 26212, 28356, 30397,
- 2409, 4676, 7543, 9786,
- 11419, 12935, 14368, 15653,
- 17366, 18943, 20762, 22477,
- 24440, 26327, 28284, 30242,
- 2354, 4222, 6820, 9107,
- 11596, 13934, 15973, 17682,
- 19158, 20517, 21991, 23420,
- 25178, 26936, 28794, 30527,
- 1323, 2414, 4184, 6039,
- 7534, 9398, 11099, 13097,
- 14799, 16451, 18434, 20887,
- 23490, 25838, 28046, 30225,
- 1361, 3243, 6048, 8511,
- 11001, 13145, 15073, 16608,
- 18126, 19381, 20912, 22607,
- 24660, 26668, 28663, 30566,
- 1216, 2648, 5901, 8422,
- 10037, 11425, 12973, 14603,
- 16686, 18600, 20555, 22415,
- 24450, 26280, 28206, 30077,
- 2417, 4048, 6316, 8433,
- 10510, 12757, 15072, 17295,
- 19573, 21503, 23329, 24782,
- 26235, 27689, 29214, 30819,
- 1012, 2345, 4991, 7377,
- 9465, 11916, 14296, 16566,
- 18672, 20544, 22292, 23838,
- 25415, 27050, 28848, 30551,
- 1937, 3693, 6267, 8019,
- 10372, 12194, 14287, 15657,
- 17431, 18864, 20769, 22206,
- 24037, 25463, 27383, 28602,
- 1969, 3305, 5017, 6726,
- 8375, 9993, 11634, 13280,
- 15078, 16751, 18464, 20119,
- 21959, 23858, 26224, 29298,
- 1198, 2647, 5428, 7423,
- 9775, 12155, 14665, 16344,
- 18121, 19790, 21557, 22847,
- 24484, 25742, 27639, 28711,
- 1636, 3353, 5447, 7597,
- 9837, 11647, 13964, 16019,
- 17862, 20116, 22319, 24037,
- 25966, 28086, 29914, 31294,
- 2676, 4105, 6378, 8223,
- 10058, 11549, 13072, 14453,
- 15956, 17355, 18931, 20402,
- 22183, 23884, 25717, 27723,
- 1373, 2593, 4449, 5633,
- 7300, 8425, 9474, 10818,
- 12769, 15722, 19002, 21429,
- 23682, 25924, 28135, 30333,
- 1596, 3183, 5378, 7164,
- 8670, 10105, 11470, 12834,
- 13991, 15042, 16642, 17903,
- 20759, 25283, 27770, 30240,
- 2037, 3987, 6237, 8117,
- 9954, 12245, 14217, 15892,
- 17775, 20114, 22314, 25942,
- 26305, 26483, 26796, 28561,
- 2181, 3858, 5760, 7924,
- 10041, 11577, 13769, 15700,
- 17429, 19879, 23583, 24538,
- 25212, 25693, 28688, 30507,
- 1992, 3882, 6474, 7883,
- 9381, 12672, 14340, 15701,
- 16658, 17832, 20850, 22885,
- 24677, 26457, 28491, 30460,
- 2391, 3988, 5448, 7432,
- 11014, 12579, 13140, 14146,
- 15898, 18592, 21104, 22993,
- 24673, 27186, 28142, 29612,
- 1713, 5102, 6989, 7798,
- 8670, 10110, 12746, 14881,
- 16709, 18407, 20126, 22107,
- 24181, 26198, 28237, 30137,
- 1612, 3617, 6148, 8359,
- 9576, 11528, 14936, 17809,
- 18287, 18729, 19001, 21111,
- 24631, 26596, 28740, 30643,
- 2266, 4168, 7862, 9546,
- 9618, 9703, 10134, 13897,
- 16265, 18432, 20587, 22605,
- 24754, 26994, 29125, 30840,
- 1840, 3917, 6272, 7809,
- 9714, 11438, 13767, 15799,
- 19244, 21972, 22980, 23180,
- 23723, 25650, 29117, 31085,
- 1458, 3612, 6008, 7488,
- 9827, 11893, 14086, 15734,
- 17440, 19535, 22424, 24767,
- 29246, 29928, 30516, 30947,
- -102, -121, -31, -6,
- 5, -2, 8, -18,
- -4, 6, 14, -2,
- -12, -16, -12, -60,
- -126, -353, -574, -677,
- -657, -617, -498, -393,
- -348, -277, -225, -164,
- -102, -70, -31, 33,
- 4, 379, 387, 551,
- 605, 620, 532, 482,
- 442, 454, 385, 347,
- 322, 299, 266, 200,
- 1168, 951, 672, 246,
- 60, -161, -259, -234,
- -253, -282, -203, -187,
- -155, -176, -198, -178,
- 10, 170, 393, 609,
- 555, 208, -330, -571,
- -769, -633, -319, -43,
- 95, 105, 106, 116,
- -152, -140, -125, 5,
- 173, 274, 264, 331,
- -37, -293, -609, -786,
- -959, -814, -645, -238,
- -91, 36, -11, -101,
- -279, -227, -40, 90,
- 530, 677, 890, 1104,
- 999, 835, 564, 295,
- -280, -364, -340, -331,
- -284, 288, 761, 880,
- 988, 627, 146, -226,
- -203, -181, -142, 39,
- 24, -26, -107, -92,
- -161, -135, -131, -88,
- -160, -156, -75, -43,
- -36, -6, -33, 33,
- -324, -415, -108, 124,
- 157, 191, 203, 197,
- 144, 109, 152, 176,
- 190, 122, 101, 159,
- 663, 668, 480, 400,
- 379, 444, 446, 458,
- 343, 351, 310, 228,
- 133, 44, 75, 63,
- -84, 39, -29, 35,
- -94, -233, -261, -354,
- 77, 262, -24, -145,
- -333, -409, -404, -597,
- -488, -300, 910, 592,
- 412, 120, 130, -51,
- -37, -77, -172, -181,
- -159, -148, -72, -62,
- 510, 516, 113, -585,
- -1075, -957, -417, -195,
- 9, 7, -88, -173,
- -91, 54, 98, 95,
- -28, 197, -527, -621,
- 157, 122, -168, 147,
- 309, 300, 336, 315,
- 396, 408, 376, 106,
- -162, -170, -315, 98,
- 821, 908, 570, -33,
- -312, -568, -572, -378,
- -107, 23, 156, 93,
- -129, -87, 20, -72,
- -37, 40, 21, 27,
- 48, 75, 77, 65,
- 46, 71, 66, 47,
- 136, 344, 236, 322,
- 170, 283, 269, 291,
- 162, -43, -204, -259,
- -240, -305, -350, -312,
- 447, 348, 345, 257,
- 71, -131, -77, -190,
- -202, -40, 35, 133,
- 261, 365, 438, 303,
- -8, 22, 140, 137,
- -300, -641, -764, -268,
- -23, -25, 73, -162,
- -150, -212, -72, 6,
- 39, 78, 104, -93,
- -308, -136, 117, -71,
- -513, -820, -700, -450,
- -161, -23, 29, 78,
- 337, 106, -406, -782,
- -112, 233, 383, 62,
- -126, 6, -77, -29,
- -146, -123, -51, -27,
- -27, -381, -641, 402,
- 539, 8, -207, -366,
- -36, -27, -204, -227,
- -237, -189, -64, 51,
- -92, -137, -281, 62,
- 233, 92, 148, 294,
- 363, 416, 564, 625,
- 370, -36, -469, -462,
- 102, 168, 32, 117,
- -21, 97, 139, 89,
- 104, 35, 4, 82,
- 66, 58, 73, 93,
- -76, -320, -236, -189,
- -203, -142, -27, -73,
- 9, -9, -25, 12,
- -15, 4, 4, -50,
- 314, 180, 162, -49,
- 199, -108, -227, -66,
- -447, -67, -264, -394,
- 5, 55, -133, -176,
- -116, -241, 272, 109,
- 282, 262, 192, -64,
- -392, -514, 156, 203,
- 154, 72, -34, -160,
- -73, 3, -33, -431,
- 321, 18, -567, -590,
- -108, 88, 66, 51,
- -31, -193, -46, 65,
- -29, -23, 215, -31,
- 101, -113, 32, 304,
- 88, 320, 448, 5,
- -439, -562, -508, -135,
- -13, -171, -8, 182,
- -99, -181, -149, 376,
- 476, 64, -396, -652,
- -150, 176, 222, 65,
- -590, 719, 271, 399,
- 245, 72, -156, -152,
- -176, 59, 94, 125,
- -9, -7, 9, 1,
- -61, -116, -82, 1,
- 79, 22, -44, -15,
- -48, -65, -62, -101,
- -102, -54, -70, -78,
- -80, -25, 398, 71,
- 139, 38, 90, 194,
- 222, 249, 165, 94,
- 221, 262, 163, 91,
- -206, 573, 200, -287,
- -147, 5, -18, -85,
- -74, -125, -87, 85,
- 141, 4, -4, 28,
- 234, 48, -150, -111,
- -506, 237, -209, 345,
- 94, -124, 77, 121,
- 143, 12, -80, -48,
- 191, 144, -93, -65,
- -151, -643, 435, 106,
- 87, 7, 65, 102,
- 94, 68, 5, 99,
- 222, 93, 94, 355,
- -13, -89, -228, -503,
- 287, 109, 108, 449,
- 253, -29, -109, -116,
- 15, -73, -20, 131,
- -147, 72, 59, -150,
- -594, 273, 316, 132,
- 199, 106, 198, 212,
- 220, 82, 45, -13,
- 223, 137, 270, 38,
- 252, 135, -177, -207,
- -360, -102, 403, 406,
- -14, 83, 64, 51,
- -7, -99, -97, -88,
- -124, -65, 42, 32,
- 28, 29, 12, 20,
- 119, -26, -212, -201,
- 373, 251, 141, 103,
- 36, -52, 66, 18,
- -6, -95, -196, 5,
- 98, -85, -108, 218,
- -164, 20, 356, 172,
- 37, 266, 23, 112,
- -24, -99, -92, -178,
- 29, -278, 388, -60,
- -220, 300, -13, 154,
- 191, 15, -37, -110,
- -153, -150, -114, -7,
- -94, -31, -62, -177,
- 4, -70, 35, 453,
- 147, -247, -328, 101,
- 20, -114, 147, 108,
- -119, -109, -102, -238,
- 55, -102, 173, -89,
- 129, 138, -330, -160,
- 485, 154, -59, -170,
- -20, -34, -261, -40,
- -129, 77, -84, 69,
- 83, 160, 169, 63,
- -516, 30, 336, 52,
- -0, -52, -124, 158,
- 19, 197, -10, -375,
- 405, 285, 114, -395,
- -47, 196, 62, 87,
- -106, -65, -75, -69,
- -13, 34, 99, 59,
- 83, 98, 44, 0,
- 24, 18, 17, 70,
- -22, 194, 208, 144,
- -79, -15, 32, -104,
- -28, -105, -186, -212,
- -228, -79, -76, 51,
- -71, 72, 118, -34,
- -3, -171, 5, 2,
- -108, -125, 62, -58,
- 58, -121, 73, -466,
- 92, 63, -94, -78,
- -76, 212, 36, -225,
- -71, -354, 152, 143,
- -79, -246, -51, -31,
- -6, -270, 240, 210,
- 30, -157, -231, 74,
- -146, 88, -273, 156,
- 92, 56, 71, 2,
- 318, 164, 32, -110,
- -35, -41, -95, -106,
- 11, 132, -68, 55,
- 123, -83, -149, 212,
- 132, 0, -194, 55,
- 206, -108, -353, 289,
- -195, 1, 233, -22,
- -60, 20, 26, 68,
- 166, 27, -58, 130,
- 112, 107, 27, -165,
- 115, -93, -37, 38,
- 83, 483, 65, -229,
- -13, 157, 85, 50,
- 136, 10, 32, 83,
- 82, 55, 5, -9,
- -52, -78, -81, -51,
- 40, 18, -127, -224,
- -41, 53, -210, -113,
- 24, -17, -187, -89,
- 8, 121, 83, 77,
- 91, -74, -35, -112,
- -161, -173, 102, 132,
- -125, -61, 103, -260,
- 52, 166, -32, -156,
- -87, -56, 60, -70,
- -124, 242, 114, -251,
- -166, 201, 127, 28,
- -11, 23, -80, -115,
- -20, -51, -348, 340,
- -34, 133, 13, 92,
- -124, -136, -120, -26,
- -6, 17, 28, 21,
- 120, -168, 160, -35,
- 115, 28, 9, 7,
- -56, 39, 156, 256,
- -18, 1, 277, 82,
- -70, -144, -88, -13,
- -59, -157, 8, -134,
- 21, -40, 58, -21,
- 194, -276, 97, 279,
- -56, -140, 125, 57,
- -184, -204, -70, -2,
- 128, -202, -78, 230,
- -23, 161, -102, 1,
- 1, 180, -31, -86,
- -167, -57, -60, 27,
- -13, 99, 108, 111,
- 76, 69, 34, -21,
- 53, 38, 34, 78,
- 73, 219, 51, 15,
- -72, -103, -207, 30,
- 213, -14, 31, -94,
- -40, -144, 67, 4,
- 105, 59, -240, 25,
- 244, 69, 58, 23,
- -24, -5, -15, -133,
- -71, -67, 181, 29,
- -45, 121, 96, 51,
- -72, -53, 56, -153,
- -27, 85, 183, 211,
- 105, -34, -46, 43,
- -72, -93, 36, -128,
- 29, 111, -95, -156,
- -179, -235, 21, -39,
- -71, -33, -61, -252,
- 230, -131, 157, -21,
- -85, -28, -123, 80,
- -160, 63, 47, -6,
- -49, -96, -19, 17,
- -58, 17, -0, -13,
- -170, 25, -35, 59,
- 10, -31, -413, 81,
- 62, 18, -164, 245,
- 92, -165, 42, 26,
- 126, -248, 193, -55,
- 16, 39, 14, 50
-};
-
-const SKP_Silk_NLSF_CBS SKP_Silk_NLSF_CB1_16_Stage_info[ NLSF_MSVQ_CB1_16_STAGES ] =
-{
- { 32, &SKP_Silk_NLSF_MSVQ_CB1_16_Q15[ 16 * 0 ], &SKP_Silk_NLSF_MSVQ_CB1_16_rates_Q5[ 0 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB1_16_Q15[ 16 * 32 ], &SKP_Silk_NLSF_MSVQ_CB1_16_rates_Q5[ 32 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB1_16_Q15[ 16 * 40 ], &SKP_Silk_NLSF_MSVQ_CB1_16_rates_Q5[ 40 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB1_16_Q15[ 16 * 48 ], &SKP_Silk_NLSF_MSVQ_CB1_16_rates_Q5[ 48 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB1_16_Q15[ 16 * 56 ], &SKP_Silk_NLSF_MSVQ_CB1_16_rates_Q5[ 56 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB1_16_Q15[ 16 * 64 ], &SKP_Silk_NLSF_MSVQ_CB1_16_rates_Q5[ 64 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB1_16_Q15[ 16 * 72 ], &SKP_Silk_NLSF_MSVQ_CB1_16_rates_Q5[ 72 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB1_16_Q15[ 16 * 80 ], &SKP_Silk_NLSF_MSVQ_CB1_16_rates_Q5[ 80 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB1_16_Q15[ 16 * 88 ], &SKP_Silk_NLSF_MSVQ_CB1_16_rates_Q5[ 88 ] },
- { 8, &SKP_Silk_NLSF_MSVQ_CB1_16_Q15[ 16 * 96 ], &SKP_Silk_NLSF_MSVQ_CB1_16_rates_Q5[ 96 ] }
-};
-
-const SKP_Silk_NLSF_CB_struct SKP_Silk_NLSF_CB1_16 =
-{
- NLSF_MSVQ_CB1_16_STAGES,
- SKP_Silk_NLSF_CB1_16_Stage_info,
- SKP_Silk_NLSF_MSVQ_CB1_16_ndelta_min_Q15,
- SKP_Silk_NLSF_MSVQ_CB1_16_CDF,
- SKP_Silk_NLSF_MSVQ_CB1_16_CDF_start_ptr,
- SKP_Silk_NLSF_MSVQ_CB1_16_CDF_middle_idx
-};
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_TABLES_NLSF_CB1_16_H
-#define SKP_SILK_TABLES_NLSF_CB1_16_H
-
-#include "SKP_Silk_define.h"
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-#define NLSF_MSVQ_CB1_16_STAGES 10
-#define NLSF_MSVQ_CB1_16_VECTORS 104
-
-/* NLSF codebook entropy coding tables */
-extern const SKP_uint16 SKP_Silk_NLSF_MSVQ_CB1_16_CDF[ NLSF_MSVQ_CB1_16_VECTORS + NLSF_MSVQ_CB1_16_STAGES ];
-extern const SKP_uint16 * const SKP_Silk_NLSF_MSVQ_CB1_16_CDF_start_ptr[ NLSF_MSVQ_CB1_16_STAGES ];
-extern const SKP_int SKP_Silk_NLSF_MSVQ_CB1_16_CDF_middle_idx[ NLSF_MSVQ_CB1_16_STAGES ];
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_tables.h"
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-const SKP_uint16 SKP_Silk_gain_CDF[ 2 ][ 65 ] =
-{
-{
- 0, 18, 45, 94, 181, 320, 519, 777,
- 1093, 1468, 1909, 2417, 2997, 3657, 4404, 5245,
- 6185, 7228, 8384, 9664, 11069, 12596, 14244, 16022,
- 17937, 19979, 22121, 24345, 26646, 29021, 31454, 33927,
- 36438, 38982, 41538, 44068, 46532, 48904, 51160, 53265,
- 55184, 56904, 58422, 59739, 60858, 61793, 62568, 63210,
- 63738, 64165, 64504, 64769, 64976, 65133, 65249, 65330,
- 65386, 65424, 65451, 65471, 65487, 65501, 65513, 65524,
- 65535
-},
-{
- 0, 214, 581, 1261, 2376, 3920, 5742, 7632,
- 9449, 11157, 12780, 14352, 15897, 17427, 18949, 20462,
- 21957, 23430, 24889, 26342, 27780, 29191, 30575, 31952,
- 33345, 34763, 36200, 37642, 39083, 40519, 41930, 43291,
- 44602, 45885, 47154, 48402, 49619, 50805, 51959, 53069,
- 54127, 55140, 56128, 57101, 58056, 58979, 59859, 60692,
- 61468, 62177, 62812, 63368, 63845, 64242, 64563, 64818,
- 65023, 65184, 65306, 65391, 65447, 65482, 65505, 65521,
- 65535
-}
-};
-
-const SKP_int SKP_Silk_gain_CDF_offset = 32;
-
-
-const SKP_uint16 SKP_Silk_delta_gain_CDF[ 46 ] = {
- 0, 2358, 3856, 7023, 15376, 53058, 59135, 61555,
- 62784, 63498, 63949, 64265, 64478, 64647, 64783, 64894,
- 64986, 65052, 65113, 65169, 65213, 65252, 65284, 65314,
- 65338, 65359, 65377, 65392, 65403, 65415, 65424, 65432,
- 65440, 65448, 65455, 65462, 65470, 65477, 65484, 65491,
- 65499, 65506, 65513, 65521, 65528, 65535
-};
-
-const SKP_int SKP_Silk_delta_gain_CDF_offset = 5;
-
-#ifdef __cplusplus
-}
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_structs.h"
-#include "SKP_Silk_define.h"
-#include "SKP_Silk_tables.h"
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-/* Piece-wise linear mapping from bitrate in kbps to coding quality in dB SNR */
-const SKP_int32 TargetRate_table_NB[ TARGET_RATE_TAB_SZ ] = {
- 0, 8000, 9000, 11000, 13000, 16000, 22000, MAX_TARGET_RATE_BPS
-};
-const SKP_int32 TargetRate_table_MB[ TARGET_RATE_TAB_SZ ] = {
- 0, 10000, 12000, 14000, 17000, 21000, 28000, MAX_TARGET_RATE_BPS
-};
-const SKP_int32 TargetRate_table_WB[ TARGET_RATE_TAB_SZ ] = {
- 0, 11000, 14000, 17000, 21000, 26000, 36000, MAX_TARGET_RATE_BPS
-};
-const SKP_int32 TargetRate_table_SWB[ TARGET_RATE_TAB_SZ ] = {
- 0, 13000, 16000, 19000, 25000, 32000, 46000, MAX_TARGET_RATE_BPS
-};
-const SKP_int32 SNR_table_Q1[ TARGET_RATE_TAB_SZ ] = {
- 19, 31, 35, 39, 43, 47, 54, 64
-};
-
-const SKP_int32 SNR_table_one_bit_per_sample_Q7[ 4 ] = {
- 1984, 2240, 2408, 2708
-};
-
-/* Filter coeficicnts for HP filter: 4. Order filter implementad as two biquad filters */
-const SKP_int16 SKP_Silk_SWB_detect_B_HP_Q13[ NB_SOS ][ 3 ] = {
- //{400, -550, 400}, {400, 130, 400}, {400, 390, 400}
- {575, -948, 575}, {575, -221, 575}, {575, 104, 575}
-};
-const SKP_int16 SKP_Silk_SWB_detect_A_HP_Q13[ NB_SOS ][ 2 ] = {
- {14613, 6868}, {12883, 7337}, {11586, 7911}
- //{14880, 6900}, {14400, 7300}, {13700, 7800}
-};
-
-/* Decoder high-pass filter coefficients for 24 kHz sampling, -6 dB @ 44 Hz */
-const SKP_int16 SKP_Silk_Dec_A_HP_24[ DEC_HP_ORDER ] = {-16220, 8030}; // second order AR coefs, Q13
-const SKP_int16 SKP_Silk_Dec_B_HP_24[ DEC_HP_ORDER + 1 ] = {8000, -16000, 8000}; // second order MA coefs, Q13
-
-/* Decoder high-pass filter coefficients for 16 kHz sampling, - 6 dB @ 46 Hz */
-const SKP_int16 SKP_Silk_Dec_A_HP_16[ DEC_HP_ORDER ] = {-16127, 7940}; // second order AR coefs, Q13
-const SKP_int16 SKP_Silk_Dec_B_HP_16[ DEC_HP_ORDER + 1 ] = {8000, -16000, 8000}; // second order MA coefs, Q13
-
-/* Decoder high-pass filter coefficients for 12 kHz sampling, -6 dB @ 44 Hz */
-const SKP_int16 SKP_Silk_Dec_A_HP_12[ DEC_HP_ORDER ] = {-16043, 7859}; // second order AR coefs, Q13
-const SKP_int16 SKP_Silk_Dec_B_HP_12[ DEC_HP_ORDER + 1 ] = {8000, -16000, 8000}; // second order MA coefs, Q13
-
-/* Decoder high-pass filter coefficients for 8 kHz sampling, -6 dB @ 43 Hz */
-const SKP_int16 SKP_Silk_Dec_A_HP_8[ DEC_HP_ORDER ] = {-15885, 7710}; // second order AR coefs, Q13
-const SKP_int16 SKP_Silk_Dec_B_HP_8[ DEC_HP_ORDER + 1 ] = {8000, -16000, 8000}; // second order MA coefs, Q13
-
-/* table for LSB coding */
-const SKP_uint16 SKP_Silk_lsb_CDF[ 3 ] = {0, 40000, 65535};
-
-/* tables for LTPScale */
-const SKP_uint16 SKP_Silk_LTPscale_CDF[ 4 ] = {0, 32000, 48000, 65535};
-const SKP_int SKP_Silk_LTPscale_offset = 2;
-
-/* tables for VAD flag */
-const SKP_uint16 SKP_Silk_vadflag_CDF[ 3 ] = {0, 22000, 65535}; // 66% for speech, 33% for no speech
-const SKP_int SKP_Silk_vadflag_offset = 1;
-
-/* tables for sampling rate */
-const SKP_int SKP_Silk_SamplingRates_table[ 4 ] = {8, 12, 16, 24};
-const SKP_uint16 SKP_Silk_SamplingRates_CDF[ 5 ] = {0, 16000, 32000, 48000, 65535};
-const SKP_int SKP_Silk_SamplingRates_offset = 2;
-
-/* tables for NLSF interpolation factor */
-const SKP_uint16 SKP_Silk_NLSF_interpolation_factor_CDF[ 6 ] = {0, 3706, 8703, 19226, 30926, 65535};
-const SKP_int SKP_Silk_NLSF_interpolation_factor_offset = 4;
-
-/* Table for frame termination indication */
-const SKP_uint16 SKP_Silk_FrameTermination_CDF[ 5 ] = {0, 20000, 45000, 56000, 65535};
-const SKP_int SKP_Silk_FrameTermination_offset = 2;
-
-/* Table for random seed */
-const SKP_uint16 SKP_Silk_Seed_CDF[ 5 ] = {0, 16384, 32768, 49152, 65535};
-const SKP_int SKP_Silk_Seed_offset = 2;
-
-/* Quantization offsets */
-const SKP_int16 SKP_Silk_Quantization_Offsets_Q10[ 2 ][ 2 ] = {
- { OFFSET_VL_Q10, OFFSET_VH_Q10 }, { OFFSET_UVL_Q10, OFFSET_UVH_Q10 }
-};
-
-/* Table for LTPScale */
-const SKP_int16 SKP_Silk_LTPScales_table_Q14[ 3 ] = { 15565, 11469, 8192 };
-
-#if SWITCH_TRANSITION_FILTERING
-/* Elliptic/Cauer filters designed with 0.1 dB passband ripple,
- 80 dB minimum stopband attenuation, and
- [0.95 : 0.15 : 0.35] normalized cut off frequencies. */
-
-/* Interpolation points for filter coefficients used in the bandwidth transition smoother */
-const SKP_int32 SKP_Silk_Transition_LP_B_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NB ] =
-{
-{ 250767114, 501534038, 250767114 },
-{ 209867381, 419732057, 209867381 },
-{ 170987846, 341967853, 170987846 },
-{ 131531482, 263046905, 131531482 },
-{ 89306658, 178584282, 89306658 }
-};
-
-/* Interpolation points for filter coefficients used in the bandwidth transition smoother */
-const SKP_int32 SKP_Silk_Transition_LP_A_Q28[ TRANSITION_INT_NUM ][ TRANSITION_NA ] =
-{
-{ 506393414, 239854379 },
-{ 411067935, 169683996 },
-{ 306733530, 116694253 },
-{ 185807084, 77959395 },
-{ 35497197, 57401098 }
-};
-#endif
-
-#ifdef __cplusplus
-}
-#endif
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_tables.h"
-
-const SKP_uint16 SKP_Silk_pitch_lag_NB_CDF[ 8 * ( PITCH_EST_MAX_LAG_MS - PITCH_EST_MIN_LAG_MS ) + 2 ] = {
- 0, 194, 395, 608, 841, 1099, 1391, 1724,
- 2105, 2544, 3047, 3624, 4282, 5027, 5865, 6799,
- 7833, 8965, 10193, 11510, 12910, 14379, 15905, 17473,
- 19065, 20664, 22252, 23814, 25335, 26802, 28206, 29541,
- 30803, 31992, 33110, 34163, 35156, 36098, 36997, 37861,
- 38698, 39515, 40319, 41115, 41906, 42696, 43485, 44273,
- 45061, 45847, 46630, 47406, 48175, 48933, 49679, 50411,
- 51126, 51824, 52502, 53161, 53799, 54416, 55011, 55584,
- 56136, 56666, 57174, 57661, 58126, 58570, 58993, 59394,
- 59775, 60134, 60472, 60790, 61087, 61363, 61620, 61856,
- 62075, 62275, 62458, 62625, 62778, 62918, 63045, 63162,
- 63269, 63368, 63459, 63544, 63623, 63698, 63769, 63836,
- 63901, 63963, 64023, 64081, 64138, 64194, 64248, 64301,
- 64354, 64406, 64457, 64508, 64558, 64608, 64657, 64706,
- 64754, 64803, 64851, 64899, 64946, 64994, 65041, 65088,
- 65135, 65181, 65227, 65272, 65317, 65361, 65405, 65449,
- 65492, 65535
-};
-
-const SKP_int SKP_Silk_pitch_lag_NB_CDF_offset = 43;
-
-const SKP_uint16 SKP_Silk_pitch_contour_NB_CDF[ 12 ] = {
- 0, 14445, 18587, 25628, 30013, 34859, 40597, 48426,
- 54460, 59033, 62990, 65535
-};
-
-const SKP_int SKP_Silk_pitch_contour_NB_CDF_offset = 5;
-
-const SKP_uint16 SKP_Silk_pitch_lag_MB_CDF[ 12 * ( PITCH_EST_MAX_LAG_MS - PITCH_EST_MIN_LAG_MS ) + 2 ] = {
- 0, 132, 266, 402, 542, 686, 838, 997,
- 1167, 1349, 1546, 1760, 1993, 2248, 2528, 2835,
- 3173, 3544, 3951, 4397, 4882, 5411, 5984, 6604,
- 7270, 7984, 8745, 9552, 10405, 11300, 12235, 13206,
- 14209, 15239, 16289, 17355, 18430, 19507, 20579, 21642,
- 22688, 23712, 24710, 25677, 26610, 27507, 28366, 29188,
- 29971, 30717, 31427, 32104, 32751, 33370, 33964, 34537,
- 35091, 35630, 36157, 36675, 37186, 37692, 38195, 38697,
- 39199, 39701, 40206, 40713, 41222, 41733, 42247, 42761,
- 43277, 43793, 44309, 44824, 45336, 45845, 46351, 46851,
- 47347, 47836, 48319, 48795, 49264, 49724, 50177, 50621,
- 51057, 51484, 51902, 52312, 52714, 53106, 53490, 53866,
- 54233, 54592, 54942, 55284, 55618, 55944, 56261, 56571,
- 56873, 57167, 57453, 57731, 58001, 58263, 58516, 58762,
- 58998, 59226, 59446, 59656, 59857, 60050, 60233, 60408,
- 60574, 60732, 60882, 61024, 61159, 61288, 61410, 61526,
- 61636, 61742, 61843, 61940, 62033, 62123, 62210, 62293,
- 62374, 62452, 62528, 62602, 62674, 62744, 62812, 62879,
- 62945, 63009, 63072, 63135, 63196, 63256, 63316, 63375,
- 63434, 63491, 63549, 63605, 63661, 63717, 63772, 63827,
- 63881, 63935, 63988, 64041, 64094, 64147, 64199, 64252,
- 64304, 64356, 64409, 64461, 64513, 64565, 64617, 64669,
- 64721, 64773, 64824, 64875, 64925, 64975, 65024, 65072,
- 65121, 65168, 65215, 65262, 65308, 65354, 65399, 65445,
- 65490, 65535
-};
-
-const SKP_int SKP_Silk_pitch_lag_MB_CDF_offset = 64;
-
-const SKP_uint16 SKP_Silk_pitch_lag_WB_CDF[ 16 * ( PITCH_EST_MAX_LAG_MS - PITCH_EST_MIN_LAG_MS ) + 2 ] = {
- 0, 106, 213, 321, 429, 539, 651, 766,
- 884, 1005, 1132, 1264, 1403, 1549, 1705, 1870,
- 2047, 2236, 2439, 2658, 2893, 3147, 3420, 3714,
- 4030, 4370, 4736, 5127, 5546, 5993, 6470, 6978,
- 7516, 8086, 8687, 9320, 9985, 10680, 11405, 12158,
- 12938, 13744, 14572, 15420, 16286, 17166, 18057, 18955,
- 19857, 20759, 21657, 22547, 23427, 24293, 25141, 25969,
- 26774, 27555, 28310, 29037, 29736, 30406, 31048, 31662,
- 32248, 32808, 33343, 33855, 34345, 34815, 35268, 35704,
- 36127, 36537, 36938, 37330, 37715, 38095, 38471, 38844,
- 39216, 39588, 39959, 40332, 40707, 41084, 41463, 41844,
- 42229, 42615, 43005, 43397, 43791, 44186, 44583, 44982,
- 45381, 45780, 46179, 46578, 46975, 47371, 47765, 48156,
- 48545, 48930, 49312, 49690, 50064, 50433, 50798, 51158,
- 51513, 51862, 52206, 52544, 52877, 53204, 53526, 53842,
- 54152, 54457, 54756, 55050, 55338, 55621, 55898, 56170,
- 56436, 56697, 56953, 57204, 57449, 57689, 57924, 58154,
- 58378, 58598, 58812, 59022, 59226, 59426, 59620, 59810,
- 59994, 60173, 60348, 60517, 60681, 60840, 60993, 61141,
- 61284, 61421, 61553, 61679, 61800, 61916, 62026, 62131,
- 62231, 62326, 62417, 62503, 62585, 62663, 62737, 62807,
- 62874, 62938, 62999, 63057, 63113, 63166, 63217, 63266,
- 63314, 63359, 63404, 63446, 63488, 63528, 63567, 63605,
- 63642, 63678, 63713, 63748, 63781, 63815, 63847, 63879,
- 63911, 63942, 63973, 64003, 64033, 64063, 64092, 64121,
- 64150, 64179, 64207, 64235, 64263, 64291, 64319, 64347,
- 64374, 64401, 64428, 64455, 64481, 64508, 64534, 64560,
- 64585, 64610, 64635, 64660, 64685, 64710, 64734, 64758,
- 64782, 64807, 64831, 64855, 64878, 64902, 64926, 64950,
- 64974, 64998, 65022, 65045, 65069, 65093, 65116, 65139,
- 65163, 65186, 65209, 65231, 65254, 65276, 65299, 65321,
- 65343, 65364, 65386, 65408, 65429, 65450, 65471, 65493,
- 65514, 65535
-};
-
-const SKP_int SKP_Silk_pitch_lag_WB_CDF_offset = 86;
-
-
-const SKP_uint16 SKP_Silk_pitch_lag_SWB_CDF[ 24 * ( PITCH_EST_MAX_LAG_MS - PITCH_EST_MIN_LAG_MS ) + 2 ] = {
- 0, 253, 505, 757, 1008, 1258, 1507, 1755,
- 2003, 2249, 2494, 2738, 2982, 3225, 3469, 3713,
- 3957, 4202, 4449, 4698, 4949, 5203, 5460, 5720,
- 5983, 6251, 6522, 6798, 7077, 7361, 7650, 7942,
- 8238, 8539, 8843, 9150, 9461, 9775, 10092, 10411,
- 10733, 11057, 11383, 11710, 12039, 12370, 12701, 13034,
- 13368, 13703, 14040, 14377, 14716, 15056, 15398, 15742,
- 16087, 16435, 16785, 17137, 17492, 17850, 18212, 18577,
- 18946, 19318, 19695, 20075, 20460, 20849, 21243, 21640,
- 22041, 22447, 22856, 23269, 23684, 24103, 24524, 24947,
- 25372, 25798, 26225, 26652, 27079, 27504, 27929, 28352,
- 28773, 29191, 29606, 30018, 30427, 30831, 31231, 31627,
- 32018, 32404, 32786, 33163, 33535, 33902, 34264, 34621,
- 34973, 35320, 35663, 36000, 36333, 36662, 36985, 37304,
- 37619, 37929, 38234, 38535, 38831, 39122, 39409, 39692,
- 39970, 40244, 40513, 40778, 41039, 41295, 41548, 41796,
- 42041, 42282, 42520, 42754, 42985, 43213, 43438, 43660,
- 43880, 44097, 44312, 44525, 44736, 44945, 45153, 45359,
- 45565, 45769, 45972, 46175, 46377, 46578, 46780, 46981,
- 47182, 47383, 47585, 47787, 47989, 48192, 48395, 48599,
- 48804, 49009, 49215, 49422, 49630, 49839, 50049, 50259,
- 50470, 50682, 50894, 51107, 51320, 51533, 51747, 51961,
- 52175, 52388, 52601, 52813, 53025, 53236, 53446, 53655,
- 53863, 54069, 54274, 54477, 54679, 54879, 55078, 55274,
- 55469, 55662, 55853, 56042, 56230, 56415, 56598, 56779,
- 56959, 57136, 57311, 57484, 57654, 57823, 57989, 58152,
- 58314, 58473, 58629, 58783, 58935, 59084, 59230, 59373,
- 59514, 59652, 59787, 59919, 60048, 60174, 60297, 60417,
- 60533, 60647, 60757, 60865, 60969, 61070, 61167, 61262,
- 61353, 61442, 61527, 61609, 61689, 61765, 61839, 61910,
- 61979, 62045, 62109, 62170, 62230, 62287, 62343, 62396,
- 62448, 62498, 62547, 62594, 62640, 62685, 62728, 62770,
- 62811, 62852, 62891, 62929, 62967, 63004, 63040, 63075,
- 63110, 63145, 63178, 63212, 63244, 63277, 63308, 63340,
- 63371, 63402, 63432, 63462, 63491, 63521, 63550, 63578,
- 63607, 63635, 63663, 63690, 63718, 63744, 63771, 63798,
- 63824, 63850, 63875, 63900, 63925, 63950, 63975, 63999,
- 64023, 64046, 64069, 64092, 64115, 64138, 64160, 64182,
- 64204, 64225, 64247, 64268, 64289, 64310, 64330, 64351,
- 64371, 64391, 64411, 64431, 64450, 64470, 64489, 64508,
- 64527, 64545, 64564, 64582, 64600, 64617, 64635, 64652,
- 64669, 64686, 64702, 64719, 64735, 64750, 64766, 64782,
- 64797, 64812, 64827, 64842, 64857, 64872, 64886, 64901,
- 64915, 64930, 64944, 64959, 64974, 64988, 65003, 65018,
- 65033, 65048, 65063, 65078, 65094, 65109, 65125, 65141,
- 65157, 65172, 65188, 65204, 65220, 65236, 65252, 65268,
- 65283, 65299, 65314, 65330, 65345, 65360, 65375, 65390,
- 65405, 65419, 65434, 65449, 65463, 65477, 65492, 65506,
- 65521, 65535
-};
-
-const SKP_int SKP_Silk_pitch_lag_SWB_CDF_offset = 128;
-
-
-const SKP_uint16 SKP_Silk_pitch_contour_CDF[ 35 ] = {
- 0, 372, 843, 1315, 1836, 2644, 3576, 4719,
- 6088, 7621, 9396, 11509, 14245, 17618, 20777, 24294,
- 27992, 33116, 40100, 44329, 47558, 50679, 53130, 55557,
- 57510, 59022, 60285, 61345, 62316, 63140, 63762, 64321,
- 64729, 65099, 65535
-};
-
-const SKP_int SKP_Silk_pitch_contour_CDF_offset = 17;
-
-const SKP_uint16 SKP_Silk_pitch_delta_CDF[23] = {
- 0, 343, 740, 1249, 1889, 2733, 3861, 5396,
- 7552, 10890, 16053, 24152, 30220, 34680, 37973, 40405,
- 42243, 43708, 44823, 45773, 46462, 47055, 65535
-};
-
-const SKP_int SKP_Silk_pitch_delta_CDF_offset = 11;
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_tables.h"
-
-const SKP_int SKP_Silk_max_pulses_table[ 4 ] = {
- 6, 8, 12, 18
-};
-
-const SKP_uint16 SKP_Silk_pulses_per_block_CDF[ 10 ][ 21 ] =
-{
-{
- 0, 47113, 61501, 64590, 65125, 65277, 65352, 65407,
- 65450, 65474, 65488, 65501, 65508, 65514, 65516, 65520,
- 65521, 65523, 65524, 65526, 65535
-},
-{
- 0, 26368, 47760, 58803, 63085, 64567, 65113, 65333,
- 65424, 65474, 65498, 65511, 65517, 65520, 65523, 65525,
- 65526, 65528, 65529, 65530, 65535
-},
-{
- 0, 9601, 28014, 45877, 57210, 62560, 64611, 65260,
- 65447, 65500, 65511, 65519, 65521, 65525, 65526, 65529,
- 65530, 65531, 65532, 65534, 65535
-},
-{
- 0, 3351, 12462, 25972, 39782, 50686, 57644, 61525,
- 63521, 64506, 65009, 65255, 65375, 65441, 65471, 65488,
- 65497, 65505, 65509, 65512, 65535
-},
-{
- 0, 488, 2944, 9295, 19712, 32160, 43976, 53121,
- 59144, 62518, 64213, 65016, 65346, 65470, 65511, 65515,
- 65525, 65529, 65531, 65534, 65535
-},
-{
- 0, 17013, 30405, 40812, 48142, 53466, 57166, 59845,
- 61650, 62873, 63684, 64223, 64575, 64811, 64959, 65051,
- 65111, 65143, 65165, 65183, 65535
-},
-{
- 0, 2994, 8323, 15845, 24196, 32300, 39340, 45140,
- 49813, 53474, 56349, 58518, 60167, 61397, 62313, 62969,
- 63410, 63715, 63906, 64056, 65535
-},
-{
- 0, 88, 721, 2795, 7542, 14888, 24420, 34593,
- 43912, 51484, 56962, 60558, 62760, 64037, 64716, 65069,
- 65262, 65358, 65398, 65420, 65535
-},
-{
- 0, 287, 789, 2064, 4398, 8174, 13534, 20151,
- 27347, 34533, 41295, 47242, 52070, 55772, 58458, 60381,
- 61679, 62533, 63109, 63519, 65535
-},
-{
- 0, 1, 3, 91, 4521, 14708, 28329, 41955,
- 52116, 58375, 61729, 63534, 64459, 64924, 65092, 65164,
- 65182, 65198, 65203, 65211, 65535
-}
-};
-
-const SKP_int SKP_Silk_pulses_per_block_CDF_offset = 6;
-
-
-const SKP_int16 SKP_Silk_pulses_per_block_BITS_Q6[ 9 ][ 20 ] =
-{
-{
- 30, 140, 282, 444, 560, 625, 654, 677,
- 731, 780, 787, 844, 859, 960, 896, 1024,
- 960, 1024, 960, 821
-},
-{
- 84, 103, 164, 252, 350, 442, 526, 607,
- 663, 731, 787, 859, 923, 923, 960, 1024,
- 960, 1024, 1024, 875
-},
-{
- 177, 117, 120, 162, 231, 320, 426, 541,
- 657, 803, 832, 960, 896, 1024, 923, 1024,
- 1024, 1024, 960, 1024
-},
-{
- 275, 182, 146, 144, 166, 207, 261, 322,
- 388, 450, 516, 582, 637, 710, 762, 821,
- 832, 896, 923, 734
-},
-{
- 452, 303, 216, 170, 153, 158, 182, 220,
- 274, 337, 406, 489, 579, 681, 896, 811,
- 896, 960, 923, 1024
-},
-{
- 125, 147, 170, 202, 232, 265, 295, 332,
- 368, 406, 443, 483, 520, 563, 606, 646,
- 704, 739, 757, 483
-},
-{
- 285, 232, 200, 190, 193, 206, 224, 244,
- 266, 289, 315, 340, 367, 394, 425, 462,
- 496, 539, 561, 350
-},
-{
- 611, 428, 319, 242, 202, 178, 172, 180,
- 199, 229, 268, 313, 364, 422, 482, 538,
- 603, 683, 739, 586
-},
-{
- 501, 450, 364, 308, 264, 231, 212, 204,
- 204, 210, 222, 241, 265, 295, 326, 362,
- 401, 437, 469, 321
-}
-};
-
-const SKP_uint16 SKP_Silk_rate_levels_CDF[ 2 ][ 10 ] =
-{
-{
- 0, 2005, 12717, 20281, 31328, 36234, 45816, 57753,
- 63104, 65535
-},
-{
- 0, 8553, 23489, 36031, 46295, 53519, 56519, 59151,
- 64185, 65535
-}
-};
-
-const SKP_int SKP_Silk_rate_levels_CDF_offset = 4;
-
-
-const SKP_int16 SKP_Silk_rate_levels_BITS_Q6[ 2 ][ 9 ] =
-{
-{
- 322, 167, 199, 164, 239, 178, 157, 231,
- 304
-},
-{
- 188, 137, 153, 171, 204, 285, 297, 237,
- 358
-}
-};
-
-const SKP_uint16 SKP_Silk_shell_code_table0[ 33 ] = {
- 0, 32748, 65535, 0, 9505, 56230, 65535, 0,
- 4093, 32204, 61720, 65535, 0, 2285, 16207, 48750,
- 63424, 65535, 0, 1709, 9446, 32026, 55752, 63876,
- 65535, 0, 1623, 6986, 21845, 45381, 59147, 64186,
- 65535
-};
-
-const SKP_uint16 SKP_Silk_shell_code_table1[ 52 ] = {
- 0, 32691, 65535, 0, 12782, 52752, 65535, 0,
- 4847, 32665, 60899, 65535, 0, 2500, 17305, 47989,
- 63369, 65535, 0, 1843, 10329, 32419, 55433, 64277,
- 65535, 0, 1485, 7062, 21465, 43414, 59079, 64623,
- 65535, 0, 0, 4841, 14797, 31799, 49667, 61309,
- 65535, 65535, 0, 0, 0, 8032, 21695, 41078,
- 56317, 65535, 65535, 65535
-};
-
-const SKP_uint16 SKP_Silk_shell_code_table2[ 102 ] = {
- 0, 32615, 65535, 0, 14447, 50912, 65535, 0,
- 6301, 32587, 59361, 65535, 0, 3038, 18640, 46809,
- 62852, 65535, 0, 1746, 10524, 32509, 55273, 64278,
- 65535, 0, 1234, 6360, 21259, 43712, 59651, 64805,
- 65535, 0, 1020, 4461, 14030, 32286, 51249, 61904,
- 65100, 65535, 0, 851, 3435, 10006, 23241, 40797,
- 55444, 63009, 65252, 65535, 0, 0, 2075, 7137,
- 17119, 31499, 46982, 58723, 63976, 65535, 65535, 0,
- 0, 0, 3820, 11572, 23038, 37789, 51969, 61243,
- 65535, 65535, 65535, 0, 0, 0, 0, 6882,
- 16828, 30444, 44844, 57365, 65535, 65535, 65535, 65535,
- 0, 0, 0, 0, 0, 10093, 22963, 38779,
- 54426, 65535, 65535, 65535, 65535, 65535
-};
-
-const SKP_uint16 SKP_Silk_shell_code_table3[ 207 ] = {
- 0, 32324, 65535, 0, 15328, 49505, 65535, 0,
- 7474, 32344, 57955, 65535, 0, 3944, 19450, 45364,
- 61873, 65535, 0, 2338, 11698, 32435, 53915, 63734,
- 65535, 0, 1506, 7074, 21778, 42972, 58861, 64590,
- 65535, 0, 1027, 4490, 14383, 32264, 50980, 61712,
- 65043, 65535, 0, 760, 3022, 9696, 23264, 41465,
- 56181, 63253, 65251, 65535, 0, 579, 2256, 6873,
- 16661, 31951, 48250, 59403, 64198, 65360, 65535, 0,
- 464, 1783, 5181, 12269, 24247, 39877, 53490, 61502,
- 64591, 65410, 65535, 0, 366, 1332, 3880, 9273,
- 18585, 32014, 45928, 56659, 62616, 64899, 65483, 65535,
- 0, 286, 1065, 3089, 6969, 14148, 24859, 38274,
- 50715, 59078, 63448, 65091, 65481, 65535, 0, 0,
- 482, 2010, 5302, 10408, 18988, 30698, 43634, 54233,
- 60828, 64119, 65288, 65535, 65535, 0, 0, 0,
- 1006, 3531, 7857, 14832, 24543, 36272, 47547, 56883,
- 62327, 64746, 65535, 65535, 65535, 0, 0, 0,
- 0, 1863, 4950, 10730, 19284, 29397, 41382, 52335,
- 59755, 63834, 65535, 65535, 65535, 65535, 0, 0,
- 0, 0, 0, 2513, 7290, 14487, 24275, 35312,
- 46240, 55841, 62007, 65535, 65535, 65535, 65535, 65535,
- 0, 0, 0, 0, 0, 0, 3606, 9573,
- 18764, 28667, 40220, 51290, 59924, 65535, 65535, 65535,
- 65535, 65535, 65535, 0, 0, 0, 0, 0,
- 0, 0, 4879, 13091, 23376, 36061, 49395, 59315,
- 65535, 65535, 65535, 65535, 65535, 65535, 65535
-};
-
-const SKP_uint16 SKP_Silk_shell_code_table_offsets[ 19 ] = {
- 0, 0, 3, 7, 12, 18, 25, 33,
- 42, 52, 63, 75, 88, 102, 117, 133,
- 150, 168, 187
-};
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_tables.h"
-
-const SKP_uint16 SKP_Silk_sign_CDF[ 36 ] =
-{
- 37840, 36944, 36251, 35304,
- 34715, 35503, 34529, 34296,
- 34016, 47659, 44945, 42503,
- 40235, 38569, 40254, 37851,
- 37243, 36595, 43410, 44121,
- 43127, 40978, 38845, 40433,
- 38252, 37795, 36637, 59159,
- 55630, 51806, 48073, 45036,
- 48416, 43857, 42678, 41146,
-};
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_tables.h"
-
-const SKP_uint16 SKP_Silk_type_offset_CDF[ 5 ] = {
- 0, 37522, 41030, 44212, 65535
-};
-
-const SKP_int SKP_Silk_type_offset_CDF_offset = 2;
-
-
-const SKP_uint16 SKP_Silk_type_offset_joint_CDF[ 4 ][ 5 ] =
-{
-{
- 0, 57686, 61230, 62358, 65535
-},
-{
- 0, 18346, 40067, 43659, 65535
-},
-{
- 0, 22694, 24279, 35507, 65535
-},
-{
- 0, 6067, 7215, 13010, 65535
-}
-};
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#ifndef SKP_SILK_TUNING_PARAMETERS_H
-#define SKP_SILK_TUNING_PARAMETERS_H
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-/*******************/
-/* Pitch estimator */
-/*******************/
-
-/* Level of noise floor for whitening filter LPC analysis in pitch analysis */
-#define FIND_PITCH_WHITE_NOISE_FRACTION 1e-3f
-
-/* Bandwidth expansion for whitening filter in pitch analysis */
-#define FIND_PITCH_BANDWITH_EXPANSION 0.99f
-
-/* Threshold used by pitch estimator for early escape */
-#define FIND_PITCH_CORRELATION_THRESHOLD_HC_MODE 0.7f
-#define FIND_PITCH_CORRELATION_THRESHOLD_MC_MODE 0.75f
-#define FIND_PITCH_CORRELATION_THRESHOLD_LC_MODE 0.8f
-
-/*********************/
-/* Linear prediction */
-/*********************/
-
-/* LPC analysis defines: regularization and bandwidth expansion */
-#define FIND_LPC_COND_FAC 2.5e-5f
-#define FIND_LPC_CHIRP 0.99995f
-
-/* LTP analysis defines */
-#define FIND_LTP_COND_FAC 1e-5f
-#define LTP_DAMPING 0.01f
-#define LTP_SMOOTHING 0.1f
-
-/* LTP quantization settings */
-#define MU_LTP_QUANT_NB 0.03f
-#define MU_LTP_QUANT_MB 0.025f
-#define MU_LTP_QUANT_WB 0.02f
-#define MU_LTP_QUANT_SWB 0.016f
-
-/***********************/
-/* High pass filtering */
-/***********************/
-
-/* Smoothing parameters for low end of pitch frequency range estimation */
-#define VARIABLE_HP_SMTH_COEF1 0.1f
-#define VARIABLE_HP_SMTH_COEF2 0.015f
-
-/* Min and max values for low end of pitch frequency range estimation */
-#define VARIABLE_HP_MIN_FREQ 80.0f
-#define VARIABLE_HP_MAX_FREQ 150.0f
-
-/* Max absolute difference between log2 of pitch frequency and smoother state, to enter the smoother */
-#define VARIABLE_HP_MAX_DELTA_FREQ 0.4f
-
-/***********/
-/* Various */
-/***********/
-
-/* Required speech activity for counting frame as active */
-#define WB_DETECT_ACTIVE_SPEECH_LEVEL_THRES 0.7f
-
-#define SPEECH_ACTIVITY_DTX_THRES 0.1f
-
-/* Speech Activity LBRR enable threshold (needs tuning) */
-#define LBRR_SPEECH_ACTIVITY_THRES 0.5f
-
-/*************************/
-/* Perceptual parameters */
-/*************************/
-
-/* reduction in coding SNR during low speech activity */
-#define BG_SNR_DECR_dB 4.0f
-
-/* factor for reducing quantization noise during voiced speech */
-#define HARM_SNR_INCR_dB 2.0f
-
-/* factor for reducing quantization noise for unvoiced sparse signals */
-#define SPARSE_SNR_INCR_dB 2.0f
-
-/* threshold for sparseness measure above which to use lower quantization offset during unvoiced */
-#define SPARSENESS_THRESHOLD_QNT_OFFSET 0.75f
-
-/* warping control */
-#define WARPING_MULTIPLIER 0.015f
-
-/* fraction added to first autocorrelation value */
-#define SHAPE_WHITE_NOISE_FRACTION 1e-5f
-
-/* noise shaping filter chirp factor */
-#define BANDWIDTH_EXPANSION 0.95f
-
-/* difference between chirp factors for analysis and synthesis noise shaping filters at low bitrates */
-#define LOW_RATE_BANDWIDTH_EXPANSION_DELTA 0.01f
-
-/* gain reduction for fricatives */
-#define DE_ESSER_COEF_SWB_dB 2.0f
-#define DE_ESSER_COEF_WB_dB 1.0f
-
-/* extra harmonic boosting (signal shaping) at low bitrates */
-#define LOW_RATE_HARMONIC_BOOST 0.1f
-
-/* extra harmonic boosting (signal shaping) for noisy input signals */
-#define LOW_INPUT_QUALITY_HARMONIC_BOOST 0.1f
-
-/* harmonic noise shaping */
-#define HARMONIC_SHAPING 0.3f
-
-/* extra harmonic noise shaping for high bitrates or noisy input */
-#define HIGH_RATE_OR_LOW_QUALITY_HARMONIC_SHAPING 0.2f
-
-/* parameter for shaping noise towards higher frequencies */
-#define HP_NOISE_COEF 0.3f
-
-/* parameter for shaping noise even more towards higher frequencies during voiced speech */
-#define HARM_HP_NOISE_COEF 0.35f
-
-/* parameter for applying a high-pass tilt to the input signal */
-#define INPUT_TILT 0.05f
-
-/* parameter for extra high-pass tilt to the input signal at high rates */
-#define HIGH_RATE_INPUT_TILT 0.1f
-
-/* parameter for reducing noise at the very low frequencies */
-#define LOW_FREQ_SHAPING 3.0f
-
-/* less reduction of noise at the very low frequencies for signals with low SNR at low frequencies */
-#define LOW_QUALITY_LOW_FREQ_SHAPING_DECR 0.5f
-
-/* noise floor to put a lower limit on the quantization step size */
-#define NOISE_FLOOR_dB 4.0f
-
-/* noise floor relative to active speech gain level */
-#define RELATIVE_MIN_GAIN_dB -50.0f
-
-/* subframe smoothing coefficient for determining active speech gain level (lower -> more smoothing) */
-#define GAIN_SMOOTHING_COEF 1e-3f
-
-/* subframe smoothing coefficient for HarmBoost, HarmShapeGain, Tilt (lower -> more smoothing) */
-#define SUBFR_SMTH_COEF 0.4f
-
-/* parameters defining the R/D tradeoff in the residual quantizer */
-#define LAMBDA_OFFSET 1.2f
-#define LAMBDA_SPEECH_ACT -0.3f
-#define LAMBDA_DELAYED_DECISIONS -0.05f
-#define LAMBDA_INPUT_QUALITY -0.2f
-#define LAMBDA_CODING_QUALITY -0.1f
-#define LAMBDA_QUANT_OFFSET 1.5f
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif // SKP_SILK_TUNING_PARAMETERS_H
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-#include "SKP_Silk_main_FIX.h"
-
-#define QC 10
-#define QS 14
-
-
-/* Autocorrelations for a warped frequency axis */
-void SKP_Silk_warped_autocorrelation_FIX(
- SKP_int32 *corr, /* O Result [order + 1] */
- SKP_int *scale, /* O Scaling of the correlation vector */
- const SKP_int16 *input, /* I Input data to correlate */
- const SKP_int16 warping_Q16, /* I Warping coefficient */
- const SKP_int length, /* I Length of input */
- const SKP_int order /* I Correlation order (even) */
-)
-{
- SKP_int n, i, lsh;
- SKP_int32 tmp1_QS, tmp2_QS;
- SKP_int32 state_QS[ MAX_SHAPE_LPC_ORDER + 1 ] = { 0 };
- SKP_int64 corr_QC[ MAX_SHAPE_LPC_ORDER + 1 ] = { 0 };
-
- /* Order must be even */
- SKP_assert( ( order & 1 ) == 0 );
- SKP_assert( 2 * QS - QC >= 0 );
-
- /* Loop over samples */
- for( n = 0; n < length; n++ ) {
- tmp1_QS = SKP_LSHIFT32( ( SKP_int32 )input[ n ], QS );
- /* Loop over allpass sections */
- for( i = 0; i < order; i += 2 ) {
- /* Output of allpass section */
- tmp2_QS = SKP_SMLAWB( state_QS[ i ], state_QS[ i + 1 ] - tmp1_QS, warping_Q16 );
- state_QS[ i ] = tmp1_QS;
- corr_QC[ i ] += SKP_RSHIFT64( SKP_SMULL( tmp1_QS, state_QS[ 0 ] ), 2 * QS - QC );
- /* Output of allpass section */
- tmp1_QS = SKP_SMLAWB( state_QS[ i + 1 ], state_QS[ i + 2 ] - tmp2_QS, warping_Q16 );
- state_QS[ i + 1 ] = tmp2_QS;
- corr_QC[ i + 1 ] += SKP_RSHIFT64( SKP_SMULL( tmp2_QS, state_QS[ 0 ] ), 2 * QS - QC );
- }
- state_QS[ order ] = tmp1_QS;
- corr_QC[ order ] += SKP_RSHIFT64( SKP_SMULL( tmp1_QS, state_QS[ 0 ] ), 2 * QS - QC );
- }
-
- lsh = SKP_Silk_CLZ64( corr_QC[ 0 ] ) - 35;
- lsh = SKP_LIMIT( lsh, -12 - QC, 30 - QC );
- *scale = -( QC + lsh );
- SKP_assert( *scale >= -30 && *scale <= 12 );
- if( lsh >= 0 ) {
- for( i = 0; i < order + 1; i++ ) {
- corr[ i ] = ( SKP_int32 )SKP_CHECK_FIT32( SKP_LSHIFT64( corr_QC[ i ], lsh ) );
- }
- } else {
- for( i = 0; i < order + 1; i++ ) {
- corr[ i ] = ( SKP_int32 )SKP_CHECK_FIT32( SKP_RSHIFT64( corr_QC[ i ], -lsh ) );
- }
- }
- SKP_assert( corr_QC[ 0 ] >= 0 ); // If breaking, decrease QC
-}
+++ /dev/null
-<?xml version="1.0" encoding="Windows-1252"?>\r
-<VisualStudioProject\r
- ProjectType="Visual C++"\r
- Version="9.00"\r
- Name="Silk_FIX"\r
- ProjectGUID="{56B91D01-9150-4BBF-AFA1-5B68AB991B76}"\r
- RootNamespace="Silk"\r
- Keyword="Win32Proj"\r
- TargetFrameworkVersion="131072"\r
- >\r
- <Platforms>\r
- <Platform\r
- Name="Win32"\r
- />\r
- <Platform\r
- Name="x64"\r
- />\r
- </Platforms>\r
- <ToolFiles>\r
- </ToolFiles>\r
- <Configurations>\r
- <Configuration\r
- Name="Debug|Win32"\r
- OutputDirectory="$(ConfigurationName)"\r
- IntermediateDirectory="$(ConfigurationName)"\r
- ConfigurationType="4"\r
- CharacterSet="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- FavorSizeOrSpeed="0"\r
- AdditionalIncludeDirectories="../interface"\r
- PreprocessorDefinitions="WIN32;_DEBUG;_LIB;"\r
- MinimalRebuild="true"\r
- BasicRuntimeChecks="3"\r
- RuntimeLibrary="1"\r
- FloatingPointModel="2"\r
- UsePrecompiledHeader="0"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="4"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLibrarianTool"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- CommandLine=""\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Release|Win32"\r
- OutputDirectory="$(ConfigurationName)"\r
- IntermediateDirectory="$(ConfigurationName)"\r
- ConfigurationType="4"\r
- CharacterSet="1"\r
- WholeProgramOptimization="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="2"\r
- InlineFunctionExpansion="0"\r
- FavorSizeOrSpeed="0"\r
- AdditionalIncludeDirectories="../interface"\r
- PreprocessorDefinitions="WIN32;NDEBUG;_LIB"\r
- GeneratePreprocessedFile="0"\r
- RuntimeLibrary="0"\r
- FloatingPointModel="2"\r
- UsePrecompiledHeader="0"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLibrarianTool"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- CommandLine=""\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Debug|x64"\r
- OutputDirectory="$(PlatformName)\$(ConfigurationName)"\r
- IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"\r
- ConfigurationType="4"\r
- CharacterSet="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- TargetEnvironment="3"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- FavorSizeOrSpeed="0"\r
- AdditionalIncludeDirectories="../interface"\r
- PreprocessorDefinitions="WIN32;_DEBUG;_LIB;"\r
- MinimalRebuild="true"\r
- BasicRuntimeChecks="3"\r
- RuntimeLibrary="1"\r
- FloatingPointModel="2"\r
- UsePrecompiledHeader="0"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLibrarianTool"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- CommandLine=""\r
- />\r
- </Configuration>\r
- <Configuration\r
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- </File>\r
- <File\r
- RelativePath=".\SKP_Silk_resampler_structs.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath=".\SKP_Silk_setup_complexity.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath=".\SKP_Silk_SigProc_FIX.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath=".\SKP_Silk_structs.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath=".\SKP_Silk_structs_FIX.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath=".\SKP_Silk_tables.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath=".\SKP_Silk_tables_NLSF_CB0_10.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath=".\SKP_Silk_tables_NLSF_CB0_16.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath=".\SKP_Silk_tables_NLSF_CB1_10.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath=".\SKP_Silk_tables_NLSF_CB1_16.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath=".\SKP_Silk_tuning_parameters.h"\r
- >\r
- </File>\r
- </Filter>\r
- </Files>\r
- <Globals>\r
- </Globals>\r
-</VisualStudioProject>\r
+++ /dev/null
-<?xml version="1.0" encoding="Windows-1252"?>\r
-<VisualStudioProject\r
- ProjectType="Visual C++"\r
- Version="8,00"\r
- Name="Dec_SDK"\r
- ProjectGUID="{82685D7F-0589-42BD-877C-31A952D53A8E}"\r
- RootNamespace="Test"\r
- Keyword="Win32Proj"\r
- >\r
- <Platforms>\r
- <Platform\r
- Name="Win32"\r
- />\r
- </Platforms>\r
- <ToolFiles>\r
- </ToolFiles>\r
- <Configurations>\r
- <Configuration\r
- Name="Debug|Win32"\r
- OutputDirectory="$(SolutionDir)"\r
- IntermediateDirectory="$(ConfigurationName)_Dec"\r
- ConfigurationType="1"\r
- CharacterSet="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- AdditionalIncludeDirectories="../interface;../src"\r
- PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;COMPILE_SDK"\r
- MinimalRebuild="true"\r
- BasicRuntimeChecks="3"\r
- RuntimeLibrary="1"\r
- UsePrecompiledHeader="0"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="4"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- OutputFile="$(OutDir)\Decoder_debug.exe"\r
- LinkIncremental="2"\r
- AdditionalLibraryDirectories=""\r
- IgnoreAllDefaultLibraries="false"\r
- IgnoreDefaultLibraryNames=""\r
- GenerateDebugInformation="true"\r
- ProgramDatabaseFile="$(TargetDir)$(TargetName).pdb"\r
- SubSystem="1"\r
- TargetMachine="1"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCWebDeploymentTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Release|Win32"\r
- OutputDirectory="$(SolutionDir)"\r
- IntermediateDirectory="$(ConfigurationName)_Dec"\r
- ConfigurationType="1"\r
- CharacterSet="1"\r
- WholeProgramOptimization="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- AdditionalIncludeDirectories="../interface;../src"\r
- PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;COMPILE_SDK"\r
- RuntimeLibrary="0"\r
- FloatingPointModel="2"\r
- UsePrecompiledHeader="0"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalOptions="/fixed:no"\r
- OutputFile="$(OutDir)\Decoder.exe"\r
- LinkIncremental="1"\r
- AdditionalLibraryDirectories=""\r
- IgnoreDefaultLibraryNames=""\r
- GenerateDebugInformation="false"\r
- SubSystem="1"\r
- OptimizeReferences="2"\r
- EnableCOMDATFolding="2"\r
- TargetMachine="1"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCWebDeploymentTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- </Configurations>\r
- <References>\r
- </References>\r
- <Files>\r
- <Filter\r
- Name="Source Files"\r
- Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"\r
- UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"\r
- >\r
- <File\r
- RelativePath=".\Decoder.c"\r
- >\r
- </File>\r
- </Filter>\r
- <Filter\r
- Name="interface"\r
- >\r
- <File\r
- RelativePath="..\interface\SKP_Silk_control.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\interface\SKP_Silk_errors.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\interface\SKP_Silk_SDK_API.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\interface\SKP_Silk_typedef.h"\r
- >\r
- </File>\r
- </Filter>\r
- </Files>\r
- <Globals>\r
- </Globals>\r
-</VisualStudioProject>\r
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-
-/*****************************/
-/* Silk decoder test program */
-/*****************************/
-
-#ifdef _WIN32
-#define _CRT_SECURE_NO_DEPRECATE 1
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "SKP_Silk_SDK_API.h"
-#include "SKP_Silk_SigProc_FIX.h"
-
-/* Define codec specific settings should be moved to h file */
-#define MAX_BYTES_PER_FRAME 1024
-#define MAX_INPUT_FRAMES 5
-#define MAX_FRAME_LENGTH 480
-#define FRAME_LENGTH_MS 20
-#define MAX_API_FS_KHZ 48
-#define MAX_LBRR_DELAY 2
-
-#ifdef _SYSTEM_IS_BIG_ENDIAN
-/* Function to convert a little endian int16 to a */
-/* big endian int16 or vica verca */
-void swap_endian(
- SKP_int16 vec[],
- SKP_int len
-)
-{
- SKP_int i;
- SKP_int16 tmp;
- SKP_uint8 *p1, *p2;
-
- for( i = 0; i < len; i++ ){
- tmp = vec[ i ];
- p1 = (SKP_uint8 *)&vec[ i ]; p2 = (SKP_uint8 *)&tmp;
- p1[ 0 ] = p2[ 1 ]; p1[ 1 ] = p2[ 0 ];
- }
-}
-#endif
-
-/* Seed for the random number generator, which is used for simulating packet loss */
-static SKP_int32 rand_seed = 1;
-
-static void print_usage(char* argv[]) {
- printf( "\nusage: %s in.bit out.pcm [settings]\n", argv[ 0 ] );
- printf( "\nstream.bit : Bitstream input to decoder" );
- printf( "\nout.pcm : Speech output from decoder" );
- printf( "\n settings:" );
- printf( "\n-Fs_API <Hz> : Sampling rate of output signal in Hz; default: 24000" );
- printf( "\n-loss <perc> : Simulated packet loss percentage (0-100); default: 0" );
- printf( "\n" );
-}
-
-int main( int argc, char* argv[] )
-{
- size_t counter;
- SKP_int32 args, totPackets, i, k;
- SKP_int16 ret, len, tot_len;
- SKP_int16 nBytes;
- SKP_uint8 payload[ MAX_BYTES_PER_FRAME * MAX_INPUT_FRAMES * ( MAX_LBRR_DELAY + 1 ) ];
- SKP_uint8 *payloadEnd = NULL, *payloadToDec = NULL;
- SKP_uint8 FECpayload[ MAX_BYTES_PER_FRAME * MAX_INPUT_FRAMES ], *payloadPtr;
- SKP_int16 nBytesFEC;
- SKP_int16 nBytesPerPacket[ MAX_LBRR_DELAY + 1 ], totBytes;
- SKP_int16 out[ ( ( FRAME_LENGTH_MS * MAX_API_FS_KHZ ) << 1 ) * MAX_INPUT_FRAMES ], *outPtr;
- char speechOutFileName[ 150 ], bitInFileName[ 150 ];
- FILE *bitInFile, *speechOutFile;
- SKP_int32 API_Fs_Hz = 0;
- SKP_int32 decSizeBytes;
- void *psDec;
- float loss_prob;
- SKP_int32 frames, lost, quiet;
- SKP_SILK_SDK_DecControlStruct DecControl;
-
- if( argc < 3 ) {
- print_usage( argv );
- exit( 0 );
- }
-
- /* default settings */
- quiet = 0;
- loss_prob = 0.0f;
-
- /* get arguments */
- args = 1;
- strcpy( bitInFileName, argv[ args ] );
- args++;
- strcpy( speechOutFileName, argv[ args ] );
- args++;
- while( args < argc ) {
- if( SKP_STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-loss" ) == 0 ) {
- sscanf( argv[ args + 1 ], "%f", &loss_prob );
- args += 2;
- } else if( SKP_STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-Fs_API" ) == 0 ) {
- sscanf( argv[ args + 1 ], "%d", &API_Fs_Hz );
- args += 2;
- } else if( SKP_STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-quiet" ) == 0 ) {
- quiet = 1;
- args++;
- } else {
- printf( "Error: unrecognized setting: %s\n\n", argv[ args ] );
- print_usage( argv );
- exit( 0 );
- }
- }
-
- if( !quiet ) {
- printf("******************* Silk Decoder v %s ****************\n", SKP_Silk_SDK_get_version());
- printf("******************* Compiled for %d bit cpu ********* \n", (int)sizeof(void*) * 8 );
- printf( "Input: %s\n", bitInFileName );
- printf( "Output: %s\n", speechOutFileName );
- }
-
- /* Open files */
- bitInFile = fopen( bitInFileName, "rb" );
- if( bitInFile == NULL ) {
- printf( "Error: could not open input file %s\n", bitInFileName );
- exit( 0 );
- }
-
- /* Check Silk header */
- {
- char header_buf[ 50 ];
- counter = fread( header_buf, sizeof( char ), strlen( "#!SILK_V3" ), bitInFile );
- header_buf[ strlen( "#!SILK_V3" ) ] = ( char )0; /* Terminate with a null character */
- if( strcmp( header_buf, "#!SILK_V3" ) != 0 ) {
- /* Non-equal strings */
- printf( "Error: Wrong Header %s\n", header_buf );
- exit( 0 );
- }
- }
-
- speechOutFile = fopen( speechOutFileName, "wb" );
- if( speechOutFile == NULL ) {
- printf( "Error: could not open output file %s\n", speechOutFileName );
- exit( 0 );
- }
-
- /* Set the samplingrate that is requested for the output */
- if( API_Fs_Hz == 0 ) {
- DecControl.API_sampleRate = 24000;
- } else {
- DecControl.API_sampleRate = API_Fs_Hz;
- }
-
- /* Initialize to one frame per packet, for proper concealment before first packet arrives */
- DecControl.framesPerPacket = 1;
-
- /* Create decoder */
- ret = SKP_Silk_SDK_Get_Decoder_Size( &decSizeBytes );
- if( ret ) {
- printf( "\nSKP_Silk_SDK_Get_Decoder_Size returned %d", ret );
- }
- psDec = malloc( decSizeBytes );
-
- /* Reset decoder */
- ret = SKP_Silk_SDK_InitDecoder( psDec );
- if( ret ) {
- printf( "\nSKP_Silk_InitDecoder returned %d", ret );
- }
-
- totPackets = 0;
- payloadEnd = payload;
-
- /* Simulate the jitter buffer holding MAX_FEC_DELAY packets */
- for( i = 0; i < MAX_LBRR_DELAY; i++ ) {
- /* Read payload size */
- counter = fread( &nBytes, sizeof( SKP_int16 ), 1, bitInFile );
-#ifdef _SYSTEM_IS_BIG_ENDIAN
- swap_endian( &nBytes, 1 );
-#endif
- /* Read payload */
- counter = fread( payloadEnd, sizeof( SKP_uint8 ), nBytes, bitInFile );
-
- if( ( SKP_int16 )counter < nBytes ) {
- break;
- }
- nBytesPerPacket[ i ] = nBytes;
- payloadEnd += nBytes;
- }
-
- while( 1 ) {
- /* Read payload size */
- counter = fread( &nBytes, sizeof( SKP_int16 ), 1, bitInFile );
-#ifdef _SYSTEM_IS_BIG_ENDIAN
- swap_endian( &nBytes, 1 );
-#endif
- if( nBytes < 0 || counter < 1 ) {
- break;
- }
-
- /* Read payload */
- counter = fread( payloadEnd, sizeof( SKP_uint8 ), nBytes, bitInFile );
- if( ( SKP_int16 )counter < nBytes ) {
- break;
- }
-
- /* Simulate losses */
- rand_seed = SKP_RAND( rand_seed );
- if( ( ( ( float )( ( rand_seed >> 16 ) + ( 1 << 15 ) ) ) / 65535.0f >= ( loss_prob / 100.0f ) ) && ( counter > 0 ) ) {
- nBytesPerPacket[ MAX_LBRR_DELAY ] = nBytes;
- payloadEnd += nBytes;
- } else {
- nBytesPerPacket[ MAX_LBRR_DELAY ] = 0;
- }
-
- if( nBytesPerPacket[ 0 ] == 0 ) {
- /* Indicate lost packet */
- lost = 1;
-
- /* Packet loss. Search after FEC in next packets. Should be done in the jitter buffer */
- payloadPtr = payload;
- for( i = 0; i < MAX_LBRR_DELAY; i++ ) {
- if( nBytesPerPacket[ i + 1 ] > 0 ) {
- SKP_Silk_SDK_search_for_LBRR( payloadPtr, nBytesPerPacket[ i + 1 ], i + 1, FECpayload, &nBytesFEC );
- if( nBytesFEC > 0 ) {
- payloadToDec = FECpayload;
- nBytes = nBytesFEC;
- lost = 0;
- break;
- }
- }
- payloadPtr += nBytesPerPacket[ i + 1 ];
- }
- } else {
- lost = 0;
- nBytes = nBytesPerPacket[ 0 ];
- payloadToDec = payload;
- }
-
- /* Silk decoder */
- outPtr = out;
- tot_len = 0;
-
- if( lost == 0 ) {
- /* No Loss: Decode all frames in the packet */
- frames = 0;
- do {
- /* Decode 20 ms */
- ret = SKP_Silk_SDK_Decode( psDec, &DecControl, 0, payloadToDec, nBytes, outPtr, &len );
- if( ret ) {
- printf( "\nSKP_Silk_SDK_Decode returned %d", ret );
- }
-
- frames++;
- outPtr += len;
- tot_len += len;
- if( frames > MAX_INPUT_FRAMES ) {
- /* Hack for corrupt stream that could generate too many frames */
- outPtr = out;
- tot_len = 0;
- frames = 0;
- }
- /* Until last 20 ms frame of packet has been decoded */
- } while( DecControl.moreInternalDecoderFrames );
- } else {
- /* Loss: Decode enough frames to cover one packet duration */
- for( i = 0; i < DecControl.framesPerPacket; i++ ) {
- /* Generate 20 ms */
- ret = SKP_Silk_SDK_Decode( psDec, &DecControl, 1, payloadToDec, nBytes, outPtr, &len );
- if( ret ) {
- printf( "\nSKP_Silk_Decode returned %d", ret );
- }
- outPtr += len;
- tot_len += len;
- }
- }
- totPackets++;
-
- /* Write output to file */
-#ifdef _SYSTEM_IS_BIG_ENDIAN
- swap_endian( out, tot_len );
-#endif
- fwrite( out, sizeof( SKP_int16 ), tot_len, speechOutFile );
-
- /* Update buffer */
- totBytes = 0;
- for( i = 0; i < MAX_LBRR_DELAY; i++ ) {
- totBytes += nBytesPerPacket[ i + 1 ];
- }
- SKP_memmove( payload, &payload[ nBytesPerPacket[ 0 ] ], totBytes * sizeof( SKP_uint8 ) );
- payloadEnd -= nBytesPerPacket[ 0 ];
- SKP_memmove( nBytesPerPacket, &nBytesPerPacket[ 1 ], MAX_LBRR_DELAY * sizeof( SKP_int16 ) );
-
- if( !quiet ) {
- fprintf( stderr, "\rPackets decoded: %d", totPackets );
- }
- }
-
- /* Empty the recieve buffer */
- for( k = 0; k < MAX_LBRR_DELAY; k++ ) {
- if( nBytesPerPacket[ 0 ] == 0 ) {
- /* Indicate lost packet */
- lost = 1;
-
- /* Packet loss. Search after FEC in next packets. Should be done in the jitter buffer */
- payloadPtr = payload;
- for( i = 0; i < MAX_LBRR_DELAY; i++ ) {
- if( nBytesPerPacket[ i + 1 ] > 0 ) {
- SKP_Silk_SDK_search_for_LBRR( payloadPtr, nBytesPerPacket[ i + 1 ], i + 1, FECpayload, &nBytesFEC );
- if( nBytesFEC > 0 ) {
- payloadToDec = FECpayload;
- nBytes = nBytesFEC;
- lost = 0;
- break;
- }
- }
- payloadPtr += nBytesPerPacket[ i + 1 ];
- }
- } else {
- lost = 0;
- nBytes = nBytesPerPacket[ 0 ];
- payloadToDec = payload;
- }
-
- /* Silk decoder */
- outPtr = out;
- tot_len = 0;
-
- if( lost == 0 ) {
- /* No loss: Decode all frames in the packet */
- frames = 0;
- do {
- /* Decode 20 ms */
- ret = SKP_Silk_SDK_Decode( psDec, &DecControl, 0, payloadToDec, nBytes, outPtr, &len );
- if( ret ) {
- printf( "\nSKP_Silk_SDK_Decode returned %d", ret );
- }
-
- frames++;
- outPtr += len;
- tot_len += len;
- if( frames > MAX_INPUT_FRAMES ) {
- /* Hack for corrupt stream that could generate too many frames */
- outPtr = out;
- tot_len = 0;
- frames = 0;
- }
- /* Until last 20 ms frame of packet has been decoded */
- } while( DecControl.moreInternalDecoderFrames );
- } else {
- /* Loss: Decode enough frames to cover one packet duration */
-
- /* Generate 20 ms */
- for( i = 0; i < DecControl.framesPerPacket; i++ ) {
- ret = SKP_Silk_SDK_Decode( psDec, &DecControl, 1, payloadToDec, nBytes, outPtr, &len );
- if( ret ) {
- printf( "\nSKP_Silk_Decode returned %d", ret );
- }
- outPtr += len;
- tot_len += len;
- }
- }
- totPackets++;
-
- /* Write output to file */
-#ifdef _SYSTEM_IS_BIG_ENDIAN
- swap_endian( out, tot_len );
-#endif
- fwrite( out, sizeof( SKP_int16 ), tot_len, speechOutFile );
-
- /* Update Buffer */
- totBytes = 0;
- for( i = 0; i < MAX_LBRR_DELAY; i++ ) {
- totBytes += nBytesPerPacket[ i + 1 ];
- }
- SKP_memmove( payload, &payload[ nBytesPerPacket[ 0 ] ], totBytes * sizeof( SKP_uint8 ) );
- payloadEnd -= nBytesPerPacket[ 0 ];
- SKP_memmove( nBytesPerPacket, &nBytesPerPacket[ 1 ], MAX_LBRR_DELAY * sizeof( SKP_int16 ) );
-
- if( !quiet ) {
- fprintf( stderr, "\rPackets decoded: %d", totPackets );
- }
- }
-
- if( !quiet ) {
- printf( "\nDecoding Finished \n" );
- }
-
- /* Free decoder */
- free( psDec );
-
- /* Close files */
- fclose( speechOutFile );
- fclose( bitInFile );
-
- return 0;
-}
+++ /dev/null
-<?xml version="1.0" encoding="Windows-1252"?>\r
-<VisualStudioProject\r
- ProjectType="Visual C++"\r
- Version="8,00"\r
- Name="Enc_SDK"\r
- ProjectGUID="{6D97A8EF-5724-4D85-8BF4-C583714BBA78}"\r
- RootNamespace="Enc"\r
- Keyword="Win32Proj"\r
- >\r
- <Platforms>\r
- <Platform\r
- Name="Win32"\r
- />\r
- </Platforms>\r
- <ToolFiles>\r
- </ToolFiles>\r
- <Configurations>\r
- <Configuration\r
- Name="Debug|Win32"\r
- OutputDirectory="$(SolutionDir)"\r
- IntermediateDirectory="$(ConfigurationName)\Enc"\r
- ConfigurationType="1"\r
- CharacterSet="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- AdditionalIncludeDirectories="../interface"\r
- PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"\r
- MinimalRebuild="true"\r
- BasicRuntimeChecks="3"\r
- RuntimeLibrary="1"\r
- UsePrecompiledHeader="0"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="4"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- OutputFile="$(OutDir)\Encoder_debug.exe"\r
- LinkIncremental="2"\r
- AdditionalLibraryDirectories=""\r
- IgnoreAllDefaultLibraries="false"\r
- IgnoreDefaultLibraryNames=""\r
- GenerateDebugInformation="true"\r
- ProgramDatabaseFile="$(TargetDir)$(TargetName).pdb"\r
- SubSystem="1"\r
- TargetMachine="1"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCWebDeploymentTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Release|Win32"\r
- OutputDirectory="$(SolutionDir)"\r
- IntermediateDirectory="$(ConfigurationName)_Enc"\r
- ConfigurationType="1"\r
- CharacterSet="1"\r
- WholeProgramOptimization="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- AdditionalIncludeDirectories="../interface"\r
- PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"\r
- RuntimeLibrary="0"\r
- FloatingPointModel="2"\r
- UsePrecompiledHeader="0"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalOptions="/fixed:no"\r
- OutputFile="$(OutDir)\Encoder.exe"\r
- LinkIncremental="1"\r
- AdditionalLibraryDirectories=""\r
- IgnoreDefaultLibraryNames=""\r
- GenerateDebugInformation="false"\r
- SubSystem="1"\r
- OptimizeReferences="2"\r
- EnableCOMDATFolding="2"\r
- TargetMachine="1"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCWebDeploymentTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- </Configurations>\r
- <References>\r
- </References>\r
- <Files>\r
- <Filter\r
- Name="Source Files"\r
- Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"\r
- UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"\r
- >\r
- <File\r
- RelativePath=".\Encoder.c"\r
- >\r
- </File>\r
- </Filter>\r
- <Filter\r
- Name="interface"\r
- >\r
- <File\r
- RelativePath="..\interface\SKP_Silk_control.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\interface\SKP_Silk_errors.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\interface\SKP_Silk_SDK_API.h"\r
- >\r
- </File>\r
- <File\r
- RelativePath="..\interface\SKP_Silk_typedef.h"\r
- >\r
- </File>\r
- </Filter>\r
- </Files>\r
- <Globals>\r
- </Globals>\r
-</VisualStudioProject>\r
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-
-/*****************************/
-/* Silk encoder test program */
-/*****************************/
-
-#ifdef _WIN32
-#define _CRT_SECURE_NO_DEPRECATE 1
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include "SKP_Silk_SDK_API.h"
-
-/* Define codec specific settings */
-#define MAX_BYTES_PER_FRAME 250 // Equals peak bitrate of 100 kbps
-#define MAX_INPUT_FRAMES 5
-#define MAX_LBRR_DELAY 2
-#define MAX_FRAME_LENGTH 480
-#define FRAME_LENGTH_MS 20
-#define MAX_API_FS_KHZ 48
-
-#ifdef _SYSTEM_IS_BIG_ENDIAN
-/* Function to convert a little endian int16 to a */
-/* big endian int16 or vica verca */
-void swap_endian(
- SKP_int16 vec[], /* I/O array of */
- SKP_int len /* I length */
-)
-{
- SKP_int i;
- SKP_int16 tmp;
- SKP_uint8 *p1, *p2;
-
- for( i = 0; i < len; i++ ){
- tmp = vec[ i ];
- p1 = (SKP_uint8 *)&vec[ i ]; p2 = (SKP_uint8 *)&tmp;
- p1[ 0 ] = p2[ 1 ]; p1[ 1 ] = p2[ 0 ];
- }
-}
-#endif
-
-static void print_usage( char* argv[] ) {
- printf( "\nusage: %s in.pcm out.bit [settings]\n", argv[ 0 ] );
- printf( "\nin.pcm : Speech input to encoder" );
- printf( "\nstream.bit : Bitstream output from encoder" );
- printf( "\n settings:" );
- printf( "\n-Fs_API <Hz> : API sampling rate in Hz, default: 24000" );
- printf( "\n-Fs_maxInternal <Hz> : Maximum internal sampling rate in Hz, default: 24000" );
- printf( "\n-packetlength <ms> : Packet interval in ms, default: 20" );
- printf( "\n-rate <bps> : Target bitrate; default: 25000" );
- printf( "\n-loss <perc> : Uplink loss estimate, in percent (0-100); default: 0" );
- printf( "\n-inbandFEC <flag> : Enable inband FEC usage (0/1); default: 0" );
- printf( "\n-complexity <comp> : Set complexity, 0: low, 1: medium, 2: high; default: 2" );
- printf( "\n-DTX <flag> : Enable DTX (0/1); default: 0" );
- printf( "\n-quiet : Print only some basic values" );
- printf( "\n");
-}
-
-int main( int argc, char* argv[] )
-{
- size_t counter;
- SKP_int32 k, args, totPackets, totActPackets, ret;
- SKP_int16 nBytes;
- double sumBytes, sumActBytes, avg_rate, act_rate, nrg;
- SKP_uint8 payload[ MAX_BYTES_PER_FRAME * MAX_INPUT_FRAMES ];
- SKP_int16 in[ FRAME_LENGTH_MS * MAX_API_FS_KHZ * MAX_INPUT_FRAMES ];
- char speechInFileName[ 150 ], bitOutFileName[ 150 ];
- FILE *bitOutFile, *speechInFile;
- SKP_int32 encSizeBytes;
- void *psEnc;
-#ifdef _SYSTEM_IS_BIG_ENDIAN
- SKP_int16 nBytes_LE;
-#endif
-
- /* default settings */
- SKP_int32 API_fs_Hz = 24000;
- SKP_int32 max_internal_fs_Hz = 0;
- SKP_int32 targetRate_bps = 25000;
- SKP_int32 packetSize_ms = 20;
- SKP_int32 frameSizeReadFromFile_ms = 20;
- SKP_int32 packetLoss_perc = 0, complexity_mode = 2, smplsSinceLastPacket;
- SKP_int32 INBandFEC_enabled = 0, DTX_enabled = 0, quiet = 0;
- SKP_SILK_SDK_EncControlStruct encControl; // Struct for input to encoder
-
- if( argc < 3 ) {
- print_usage( argv );
- exit( 0 );
- }
-
- /* get arguments */
- args = 1;
- strcpy( speechInFileName, argv[ args ] );
- args++;
- strcpy( bitOutFileName, argv[ args ] );
- args++;
- while( args < argc ) {
- if( SKP_STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-Fs_API" ) == 0 ) {
- sscanf( argv[ args + 1 ], "%d", &API_fs_Hz );
- args += 2;
- } else if( SKP_STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-Fs_maxInternal" ) == 0 ) {
- sscanf( argv[ args + 1 ], "%d", &max_internal_fs_Hz );
- args += 2;
- } else if( SKP_STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-packetlength" ) == 0 ) {
- sscanf( argv[ args + 1 ], "%d", &packetSize_ms );
- args += 2;
- } else if( SKP_STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-rate" ) == 0 ) {
- sscanf( argv[ args + 1 ], "%d", &targetRate_bps );
- args += 2;
- } else if( SKP_STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-loss" ) == 0 ) {
- sscanf( argv[ args + 1 ], "%d", &packetLoss_perc );
- args += 2;
- } else if( SKP_STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-complexity" ) == 0 ) {
- sscanf( argv[ args + 1 ], "%d", &complexity_mode );
- args += 2;
- } else if( SKP_STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-inbandFEC" ) == 0 ) {
- sscanf( argv[ args + 1 ], "%d", &INBandFEC_enabled );
- args += 2;
- } else if( SKP_STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-DTX") == 0 ) {
- sscanf( argv[ args + 1 ], "%d", &DTX_enabled );
- args += 2;
- } else if( SKP_STR_CASEINSENSITIVE_COMPARE( argv[ args ], "-quiet" ) == 0 ) {
- quiet = 1;
- args++;
- } else {
- printf( "Error: unrecognized setting: %s\n\n", argv[ args ] );
- print_usage( argv );
- exit( 0 );
- }
- }
-
- /* If no max internal is specified, set to minimum of API fs and 24 kHz */
- if( max_internal_fs_Hz == 0 ) {
- max_internal_fs_Hz = 24000;
- if( API_fs_Hz < max_internal_fs_Hz ) {
- max_internal_fs_Hz = API_fs_Hz;
- }
- }
-
- /* Print options */
- if( !quiet ) {
- printf("******************* Silk Encoder v %s ****************\n", SKP_Silk_SDK_get_version());
- printf("******************* Compiled for %d bit cpu ********* \n", (int)sizeof(void*) * 8 );
- printf( "Input: %s\n", speechInFileName );
- printf( "Output: %s\n", bitOutFileName );
- printf( "API sampling rate: %d Hz\n", API_fs_Hz );
- printf( "Maximum internal sampling rate: %d Hz\n", max_internal_fs_Hz );
- printf( "Packet interval: %d ms\n", packetSize_ms );
- printf( "Inband FEC used: %d\n", INBandFEC_enabled );
- printf( "DTX used: %d\n", DTX_enabled );
- printf( "Complexity: %d\n", complexity_mode );
- printf( "Target bitrate: %d bps\n", targetRate_bps );
- }
-
- /* Open files */
- speechInFile = fopen( speechInFileName, "rb" );
- if( speechInFile == NULL ) {
- printf( "Error: could not open input file %s\n", speechInFileName );
- exit( 0 );
- }
- bitOutFile = fopen( bitOutFileName, "wb" );
- if( bitOutFile == NULL ) {
- printf( "Error: could not open output file %s\n", bitOutFileName );
- exit( 0 );
- }
-
- /* Add Silk header to stream */
- {
- static const char Silk_header[] = "#!SILK_V3";
- fwrite( Silk_header, sizeof( char ), strlen( Silk_header ), bitOutFile );
- }
-
- /* Create Encoder */
- ret = SKP_Silk_SDK_Get_Encoder_Size( &encSizeBytes );
- if( ret ) {
- printf( "\nSKP_Silk_create_encoder returned %d", ret );
- }
-
- psEnc = malloc( encSizeBytes );
-
- /* Reset Encoder */
- ret = SKP_Silk_SDK_InitEncoder( psEnc, &encControl );
- if( ret ) {
- printf( "\nSKP_Silk_reset_encoder returned %d", ret );
- }
-
- /* Set Encoder parameters */
- encControl.API_sampleRate = API_fs_Hz;
- encControl.maxInternalSampleRate = max_internal_fs_Hz;
- encControl.packetSize = ( packetSize_ms * API_fs_Hz ) / 1000;
- encControl.packetLossPercentage = packetLoss_perc;
- encControl.useInBandFEC = INBandFEC_enabled;
- encControl.useDTX = DTX_enabled;
- encControl.complexity = complexity_mode;
- encControl.bitRate = ( targetRate_bps > 0 ? targetRate_bps : 0 );
-
- if( API_fs_Hz > MAX_API_FS_KHZ * 1000 || API_fs_Hz < 0 ) {
- printf( "\nError: API sampling rate = %d out of range, valid range 8000 - 48000 \n \n", API_fs_Hz );
- exit( 0 );
- }
-
- totPackets = 0;
- totActPackets = 0;
- smplsSinceLastPacket = 0;
- sumBytes = 0.0;
- sumActBytes = 0.0;
-
- while( 1 ) {
- /* Read input from file */
- counter = fread( in, sizeof( SKP_int16 ), ( frameSizeReadFromFile_ms * API_fs_Hz ) / 1000, speechInFile );
-#ifdef _SYSTEM_IS_BIG_ENDIAN
- swap_endian( in, counter );
-#endif
- if( (SKP_int)counter < ( ( frameSizeReadFromFile_ms * API_fs_Hz ) / 1000 ) ) {
- break;
- }
-
- /* max payload size */
- nBytes = MAX_BYTES_PER_FRAME * MAX_INPUT_FRAMES;
-
- /* Silk Encoder */
- ret = SKP_Silk_SDK_Encode( psEnc, &encControl, in, (SKP_int16)counter, payload, &nBytes );
- if( ret ) {
- printf( "\nSKP_Silk_Encode returned %d", ret );
- break;
- }
-
- /* Get packet size */
- packetSize_ms = ( SKP_int )( ( 1000 * ( SKP_int32 )encControl.packetSize ) / encControl.API_sampleRate );
-
- smplsSinceLastPacket += ( SKP_int )counter;
-
- if( ( ( 1000 * smplsSinceLastPacket ) / API_fs_Hz ) == packetSize_ms ) {
- /* Sends a dummy zero size packet in case of DTX period */
- /* to make it work with the decoder test program. */
- /* In practice should be handled by RTP sequence numbers */
- totPackets++;
- sumBytes += nBytes;
- nrg = 0.0;
- for( k = 0; k < ( SKP_int )counter; k++ ) {
- nrg += in[ k ] * (double)in[ k ];
- }
- if( ( nrg / ( SKP_int )counter ) > 1e3 ) {
- sumActBytes += nBytes;
- totActPackets++;
- }
-
- /* Write payload size */
-#ifdef _SYSTEM_IS_BIG_ENDIAN
- nBytes_LE = nBytes;
- swap_endian( &nBytes_LE, 1 );
- fwrite( &nBytes_LE, sizeof( SKP_int16 ), 1, bitOutFile );
-#else
- fwrite( &nBytes, sizeof( SKP_int16 ), 1, bitOutFile );
-#endif
-
- /* Write payload */
- fwrite( payload, sizeof( SKP_uint8 ), nBytes, bitOutFile );
-
- if( !quiet ) {
- fprintf( stderr, "\rPackets encoded: %d", totPackets );
- }
- smplsSinceLastPacket = 0;
- }
- }
-
- /* Write dummy because it can not end with 0 bytes */
- nBytes = -1;
-
- /* Write payload size */
- fwrite( &nBytes, sizeof( SKP_int16 ), 1, bitOutFile );
-
- /* Free Encoder */
- free( psEnc );
-
- fclose( speechInFile );
- fclose( bitOutFile );
-
- avg_rate = 8.0 / packetSize_ms * sumBytes / totPackets;
- act_rate = 8.0 / packetSize_ms * sumActBytes / totActPackets;
- if( !quiet ) {
- printf( "\nAverage bitrate: %.3f kbps", avg_rate );
- printf( "\nActive bitrate: %.3f kbps", act_rate );
- printf( "\n\n" );
- } else {
- /* print average and active bitrates */
- printf( "%.3f %.3f \n", avg_rate, act_rate );
- }
- return 0;
-}
+++ /dev/null
-<?xml version="1.0" encoding="Windows-1252"?>\r
-<VisualStudioProject\r
- ProjectType="Visual C++"\r
- Version="8,00"\r
- Name="SignalCompare"\r
- ProjectGUID="{7FE8F544-9175-40C3-A187-7F15CE9A75D8}"\r
- RootNamespace="Test"\r
- Keyword="Win32Proj"\r
- >\r
- <Platforms>\r
- <Platform\r
- Name="Win32"\r
- />\r
- </Platforms>\r
- <ToolFiles>\r
- </ToolFiles>\r
- <Configurations>\r
- <Configuration\r
- Name="Debug|Win32"\r
- OutputDirectory="$(SolutionDir)"\r
- IntermediateDirectory="$(ConfigurationName)_SigCmp"\r
- ConfigurationType="1"\r
- CharacterSet="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- Optimization="0"\r
- AdditionalIncludeDirectories="..\interface;..\src"\r
- PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"\r
- MinimalRebuild="true"\r
- BasicRuntimeChecks="3"\r
- RuntimeLibrary="1"\r
- UsePrecompiledHeader="0"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="4"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- OutputFile="$(SolutionDir)SignalCompare_debug.exe"\r
- LinkIncremental="2"\r
- AdditionalLibraryDirectories=""\r
- IgnoreAllDefaultLibraries="false"\r
- IgnoreDefaultLibraryNames=""\r
- GenerateDebugInformation="true"\r
- ProgramDatabaseFile="$(TargetDir)$(TargetName).pdb"\r
- SubSystem="1"\r
- TargetMachine="1"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCWebDeploymentTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- <Configuration\r
- Name="Release|Win32"\r
- OutputDirectory="$(SolutionDir)"\r
- IntermediateDirectory="$(ConfigurationName)_SigCmp"\r
- ConfigurationType="1"\r
- CharacterSet="1"\r
- WholeProgramOptimization="1"\r
- >\r
- <Tool\r
- Name="VCPreBuildEventTool"\r
- />\r
- <Tool\r
- Name="VCCustomBuildTool"\r
- />\r
- <Tool\r
- Name="VCXMLDataGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCWebServiceProxyGeneratorTool"\r
- />\r
- <Tool\r
- Name="VCMIDLTool"\r
- />\r
- <Tool\r
- Name="VCCLCompilerTool"\r
- AdditionalIncludeDirectories="..\interface;..\src"\r
- PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"\r
- RuntimeLibrary="0"\r
- FloatingPointModel="2"\r
- UsePrecompiledHeader="0"\r
- WarningLevel="3"\r
- Detect64BitPortabilityProblems="true"\r
- DebugInformationFormat="3"\r
- />\r
- <Tool\r
- Name="VCManagedResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCResourceCompilerTool"\r
- />\r
- <Tool\r
- Name="VCPreLinkEventTool"\r
- />\r
- <Tool\r
- Name="VCLinkerTool"\r
- AdditionalOptions="/fixed:no"\r
- OutputFile="$(SolutionDir)SignalCompare.exe"\r
- LinkIncremental="1"\r
- AdditionalLibraryDirectories=""\r
- IgnoreDefaultLibraryNames=""\r
- GenerateDebugInformation="false"\r
- SubSystem="1"\r
- OptimizeReferences="2"\r
- EnableCOMDATFolding="2"\r
- TargetMachine="1"\r
- />\r
- <Tool\r
- Name="VCALinkTool"\r
- />\r
- <Tool\r
- Name="VCManifestTool"\r
- />\r
- <Tool\r
- Name="VCXDCMakeTool"\r
- />\r
- <Tool\r
- Name="VCBscMakeTool"\r
- />\r
- <Tool\r
- Name="VCFxCopTool"\r
- />\r
- <Tool\r
- Name="VCAppVerifierTool"\r
- />\r
- <Tool\r
- Name="VCWebDeploymentTool"\r
- />\r
- <Tool\r
- Name="VCPostBuildEventTool"\r
- />\r
- </Configuration>\r
- </Configurations>\r
- <References>\r
- </References>\r
- <Files>\r
- <Filter\r
- Name="Source Files"\r
- Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"\r
- UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"\r
- >\r
- <File\r
- RelativePath=".\signalCompare.c"\r
- >\r
- </File>\r
- </Filter>\r
- </Files>\r
- <Globals>\r
- </Globals>\r
-</VisualStudioProject>\r
+++ /dev/null
-/***********************************************************************
-Copyright (c) 2006-2011, Skype Limited. All rights reserved.
-Redistribution and use in source and binary forms, with or without
-modification, (subject to the limitations in the disclaimer below)
-are permitted provided that the following conditions are met:
-- Redistributions of source code must retain the above copyright notice,
-this list of conditions and the following disclaimer.
-- Redistributions in binary form must reproduce the above copyright
-notice, this list of conditions and the following disclaimer in the
-documentation and/or other materials provided with the distribution.
-- Neither the name of Skype Limited, nor the names of specific
-contributors, may be used to endorse or promote products derived from
-this software without specific prior written permission.
-NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
-BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
-BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-***********************************************************************/
-
-/*
-* Compare two audio signals and compute weighted SNR difference
-*/
-
-#ifdef _WIN32
-#define _CRT_SECURE_NO_DEPRECATE 1
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include "SKP_Silk_SigProc_FIX.h"
-
-#define FRAME_LENGTH_MS 10
-#define WIN_LENGTH_MS 20
-#define BW_EXPANSION 0.7f
-
-#define MAX_FS_KHZ 48
-#define LPC_ORDER 10
-#define SNR_THRESHOLD 15.0
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-/* Internally used functions */
-void Autocorrelation(
- SKP_float *results, /* o result (length correlationCount) */
- const SKP_float *inputData, /* i input data to correlate */
- SKP_int inputDataSize, /* i length of input */
- SKP_int correlationCount /* i number of correlation taps to compute */
-);
-
-/* inner product of two SKP_float arrays, with result as double */
-double Inner_product(
- const SKP_float *data1,
- const SKP_float *data2,
- SKP_int dataSize
-);
-/* Solve the normal equations using the Levinson-Durbin recursion */
-SKP_float Levinsondurbin( /* O prediction error energy */
- SKP_float A[], /* O prediction coefficients [order] */
- const SKP_float corr[], /* I input auto-correlations [order + 1] */
- const SKP_int order /* I prediction order */
-);
-
-/* Chirp (bw expand) LP AR filter */
-void Bwexpander(
- SKP_float *ar, /* io AR filter to be expanded (without leading 1) */
- const SKP_int d, /* i length of ar */
- const SKP_float chirp /* i chirp factor (typically in range (0..1) ) */
-);
-
-#ifdef __cplusplus
-}
-#endif
-
-static void print_usage(char* argv[]) {
- printf("\nusage: %s ref.pcm test.pcm [settings]\n", argv[ 0 ]);
- printf("\nref.pcm : Reference file");
- printf("\ntest.pcm : File to be tested, should be of same length as ref.pcm");
- printf("\n settings:");
- printf("\n-diff : Only determine bit-exactness");
- printf("\n-fs <Hz> : Sampling rate in Hz, max: %d; default: 48000", MAX_FS_KHZ * 1000 );
- printf("\n");
-}
-
-
-int main(int argc, char* argv[])
-{
- SKP_int args, n, i, counterRef, counterTest;
- char testInFileName[150], refInFileName[150];
- FILE *refInFile, *testInFile;
- SKP_int nFrames = 0, isUnequal = 0;
- SKP_int diff = 0, Fs_kHz;
- SKP_int32 Fs_Hz = 24000;
- SKP_float c, refWhtnd, testWhtnd, refNrg, diffNrg;
- double SNR = 0.0;
- SKP_int16 refIn[WIN_LENGTH_MS * MAX_FS_KHZ], testIn[WIN_LENGTH_MS * MAX_FS_KHZ];
- SKP_float refWin[WIN_LENGTH_MS * MAX_FS_KHZ], testWin[WIN_LENGTH_MS * MAX_FS_KHZ];
- SKP_float autoCorr[LPC_ORDER + 1], LPC_Coef[LPC_ORDER];
-
- if (argc < 3) {
- print_usage(argv);
- exit(0);
- }
-
- /* get arguments */
- args = 1;
- strcpy(refInFileName, argv[args]);
- args++;
- strcpy(testInFileName, argv[args]);
- args++;
- while(args < argc ) {
- if (SKP_STR_CASEINSENSITIVE_COMPARE(argv[args], "-diff") == 0) {
- diff = 1;
- args++;
- }else if (SKP_STR_CASEINSENSITIVE_COMPARE(argv[args], "-fs") == 0) {
- sscanf(argv[args+1], "%d", &Fs_Hz);
- args += 2;
- } else {
- printf("Error: unrecognized setting: %s\n\n", argv[args]);
- print_usage(argv);
- exit(0);
- }
- }
-
- Fs_kHz = SKP_DIV32_16( Fs_Hz, 1000 );
-
- if( Fs_kHz > MAX_FS_KHZ ) {
- printf("Error: sampling rate too high: %d\n\n", Fs_kHz);
- print_usage(argv);
- exit(0);
- }
-
- printf("Reference: %s\n", refInFileName);
- //printf("Test: %s\n", testInFileName);
-
- /* open files */
- refInFile = fopen(refInFileName, "rb");
- if (refInFile==NULL) {
- printf("Error: could not open input file %s\n", refInFileName);
- exit(0);
- }
- testInFile = fopen(testInFileName, "rb");
- if (testInFile==NULL) {
- printf("Error: could not open input file %s\n", testInFileName);
- exit(0);
- }
-
- SKP_memset( refIn, 0, sizeof(refIn) );
- SKP_memset( testIn, 0, sizeof(testIn) );
-
- while(1) {
- /* Read inputs */
- counterRef = (SKP_int)fread(&refIn[(WIN_LENGTH_MS - FRAME_LENGTH_MS) * Fs_kHz],
- sizeof(SKP_int16), FRAME_LENGTH_MS * Fs_kHz, refInFile);
- counterTest = (SKP_int)fread(&testIn[(WIN_LENGTH_MS - FRAME_LENGTH_MS) * Fs_kHz],
- sizeof(SKP_int16), FRAME_LENGTH_MS * Fs_kHz, testInFile);
- if(counterRef != FRAME_LENGTH_MS * Fs_kHz || counterTest != FRAME_LENGTH_MS * Fs_kHz){
- break;
- }
-
- /* test for bit-exactness */
- for( n = 0; n < FRAME_LENGTH_MS * Fs_kHz; n++ ) {
- if( refIn[(WIN_LENGTH_MS - FRAME_LENGTH_MS) * Fs_kHz + n] !=
- testIn[(WIN_LENGTH_MS - FRAME_LENGTH_MS) * Fs_kHz + n] ) {
- isUnequal = 1;
- break;
- }
- }
-
- /* apply sine window */
- for( n = 0; n < WIN_LENGTH_MS * Fs_kHz; n++ ) {
- c = (SKP_float)sin( 3.14159265 * (n + 1) / (WIN_LENGTH_MS * Fs_kHz + 1) );
- refWin[n] = refIn[n] * c;
- testWin[n] = testIn[n] * c;
- }
-
- /* LPC analysis on reference signal */
-
- /* Calculate auto correlation */
- Autocorrelation(autoCorr, refWin, WIN_LENGTH_MS * Fs_kHz, LPC_ORDER + 1);
-
- /* Add white noise */
- autoCorr[ 0 ] += autoCorr[ 0 ] * 1e-6f + 1.0f;
-
- /* Convert correlations to prediction coefficients */
- Levinsondurbin(LPC_Coef, autoCorr, LPC_ORDER);
-
- /* Bandwdith expansion */
- Bwexpander(LPC_Coef, LPC_ORDER, BW_EXPANSION);
-
- /* Filter both signals */
- refNrg = 1.0f;
- diffNrg = 1e-10f;
- for( n = (WIN_LENGTH_MS - FRAME_LENGTH_MS) / 2 * Fs_kHz;
- n < (WIN_LENGTH_MS + FRAME_LENGTH_MS) / 2 * Fs_kHz; n++ ) {
- refWhtnd = refIn[n];
- testWhtnd = testIn[n];
- for( i = 0; i < LPC_ORDER; i++ ) {
- refWhtnd -= LPC_Coef[ i ] * refIn[n - i - 1];
- testWhtnd -= LPC_Coef[ i ] * testIn[n - i - 1];
- }
- refNrg += refWhtnd * refWhtnd;
- diffNrg += (refWhtnd - testWhtnd) * (refWhtnd - testWhtnd);
- }
-
- /* weighted SNR */
- if( refNrg > FRAME_LENGTH_MS * Fs_kHz ) {
- SNR += 10.0 * log10( refNrg / diffNrg );
- nFrames++;
- }
-
- /* Update Buffer */
- SKP_memmove( refIn, &refIn[FRAME_LENGTH_MS * Fs_kHz], (WIN_LENGTH_MS - FRAME_LENGTH_MS) * Fs_kHz * sizeof(SKP_int16));
- SKP_memmove( testIn, &testIn[FRAME_LENGTH_MS * Fs_kHz], (WIN_LENGTH_MS - FRAME_LENGTH_MS) * Fs_kHz * sizeof(SKP_int16));
- }
-
- if( diff ) {
- if( isUnequal ) {
- printf("Signals differ\n");
- } else {
- if(counterRef != counterTest){
- printf("Warning: signals differ in length\n");
- }
- printf("Signals are bit-exact PASS\n");
- }
- } else {
- if( nFrames == 0 ) {
- printf("At least one signal too short or not loud enough\n");
- exit(0);
- }
- if(counterRef != counterTest){
- printf("Warning: signals differ in length\n");
- }
- if( isUnequal == 0 ) {
- printf("Signals are bit-exact PASS\n");
- } else {
- printf("Average weighted SNR: %4.1f dB ", SNR / nFrames);
- if( SNR / nFrames < SNR_THRESHOLD ) {
- printf("FAIL\n");
- } else {
- printf("PASS\n");
- }
- }
- }
- printf("\n");
-
- /* Close Files */
- fclose(refInFile);
- fclose(testInFile);
-
- return 0;
-}
-
-/* compute autocorrelation */
-void Autocorrelation(
- SKP_float *results, /* o result (length correlationCount) */
- const SKP_float *inputData, /* i input data to correlate */
- SKP_int inputDataSize, /* i length of input */
- SKP_int correlationCount /* i number of correlation taps to compute */
-)
-{
- SKP_int i;
-
- if (correlationCount > inputDataSize) {
- correlationCount = inputDataSize;
- }
-
- for( i = 0; i < correlationCount; i++ ) {
- results[ i ] = (SKP_float)Inner_product( inputData, inputData + i, inputDataSize - i );
- }
-}
-
-/* inner product of two SKP_float arrays, with result as double */
-double Inner_product(
- const SKP_float *data1,
- const SKP_float *data2,
- SKP_int dataSize
-)
-{
- SKP_int i, dataSize4;
- double result;
-
- /* 4x unrolled loop */
- result = 0.0f;
- dataSize4 = dataSize & 0xFFFC;
- for( i = 0; i < dataSize4; i += 4 ) {
- result += data1[ i + 0 ] * data2[ i + 0 ] +
- data1[ i + 1 ] * data2[ i + 1 ] +
- data1[ i + 2 ] * data2[ i + 2 ] +
- data1[ i + 3 ] * data2[ i + 3 ];
- }
-
- /* add any remaining products */
- for( ; i < dataSize; i++ ) {
- result += data1[ i ] * data2[ i ];
- }
-
- return result;
-}
-
-/* Solve the normal equations using the Levinson-Durbin recursion */
-SKP_float Levinsondurbin( /* O prediction error energy */
- SKP_float A[], /* O prediction coefficients [order] */
- const SKP_float corr[], /* I input auto-correlations [order + 1] */
- const SKP_int order /* I prediction order */
-)
-{
- SKP_int i, mHalf, m;
- SKP_float min_nrg, nrg, t, km, Atmp1, Atmp2;
-
- min_nrg = 1e-12f * corr[ 0 ] + 1e-9f;
- nrg = corr[ 0 ];
- nrg = SKP_max(min_nrg, nrg);
- A[ 0 ] = corr[ 1 ] / nrg;
- nrg -= A[ 0 ] * corr[ 1 ];
- nrg = SKP_max(min_nrg, nrg);
-
- for( m = 1; m < order; m++ )
- {
- t = corr[ m + 1 ];
- for( i = 0; i < m; i++ ) {
- t -= A[ i ] * corr[ m - i ];
- }
-
- /* reflection coefficient */
- km = t / nrg;
-
- /* residual energy */
- nrg -= km * t;
- nrg = SKP_max(min_nrg, nrg);
-
- mHalf = m >> 1;
- for( i = 0; i < mHalf; i++ ) {
- Atmp1 = A[ i ];
- Atmp2 = A[ m - i - 1 ];
- A[ m - i - 1 ] -= km * Atmp1;
- A[ i ] -= km * Atmp2;
- }
- if( m & 1 ) {
- A[ mHalf ] -= km * A[ mHalf ];
- }
- A[ m ] = km;
- }
-
- /* return the residual energy */
- return nrg;
-}
-
-/* Chirp (bw expand) LP AR filter */
-void Bwexpander(
- SKP_float *ar, /* io AR filter to be expanded (without leading 1) */
- const SKP_int d, /* i length of ar */
- const SKP_float chirp /* i chirp factor (typically in range (0..1) ) */
-)
-{
- SKP_int i;
- SKP_float cfac = chirp;
-
- for( i = 0; i < d - 1; i++ ) {
- ar[ i ] *= cfac;
- cfac *= chirp;
- }
- ar[ d - 1 ] *= cfac;
-}
+++ /dev/null
-Use the following scripts to verify the decoder implementation:
-
-o test_encoder.bat / test_encoder.sh
-
- Make sure the encoder executable to be tested exists in the parent directory, and run
- test_encoder.bat (win) or test_encoder.sh (linux/mac). This will run the encoder
- and compare the output bitstream with the reference bitstream files. The result is
- written to test_encoder_report.txt.
- For each file, the bitstreams are either bit-exact or they differ. The compatibility
- test is passed if each file is reported as "PASS".
-
-o test_decoder.bat / test_decoder.sh
-
- Make sure the decoder executable to be tested exists in the parent directory, and run
- test_decoder.bat (win) or test_decoder.sh (linux/mac). This will run the decoder
- and compare the output audio file with the reference audio files. The result is
- written to test_decoder_report.txt.
- For each file, the bitstreams are either bit-exact or they match up to a certain
- average weighted SNR. The compatibility test is passed if each file is reported as
- "PASS".
-
-
-NOTE: When using the shell script, make sure it is marked as executable.
- This can be done by: chmod +x *.sh
+++ /dev/null
-@echo off\r
-\r
-SET BITSTREAMPATH=./test_vectors/bitstream/\r
-SET OUTPUTPATH=./test_vectors/output/\r
-SET DEC=Decoder.exe\r
-SET COMP=SignalCompare.exe\r
-\r
-cd ..\r
-\r
-:: 8 kHz\r
-\r
-:: 8 kHz, 60 ms, 8 kbps, complexity 0\r
-SET PARAMS=8_kHz_60_ms_8_kbps\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm \r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%.pcm tmp.pcm -fs 24000 > test_decoder_report.txt\r
-\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -Fs_API 8000\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%_8_kHz_out.pcm tmp.pcm -fs 8000 >> test_decoder_report.txt\r
-\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -Fs_API 12000\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%_12_kHz_out.pcm tmp.pcm -fs 12000 >> test_decoder_report.txt\r
-\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -Fs_API 16000\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%_16_kHz_out.pcm tmp.pcm -fs 16000 >> test_decoder_report.txt\r
-\r
-:: 8 kHz, 40 ms, 12 kbps, complexity 1\r
-SET PARAMS=8_kHz_40_ms_12_kbps\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm \r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%.pcm tmp.pcm >> test_decoder_report.txt\r
-\r
-:: 8 kHz, 20 ms, 20 kbps, 10% packet loss, FEC\r
-SET PARAMS=8_kHz_20_ms_20_kbps_10_loss_FEC\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -loss 10\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%.pcm tmp.pcm >> test_decoder_report.txt\r
-\r
-\r
-:: 12 kHz\r
-\r
-:: 12 kHz, 60 ms, 10 kbps, complexity 0\r
-SET PARAMS=12_kHz_60_ms_10_kbps\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm \r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%.pcm tmp.pcm >> test_decoder_report.txt\r
-\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -Fs_API 12000\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%_12_kHz_out.pcm tmp.pcm -fs 12000 >> test_decoder_report.txt\r
-\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -Fs_API 16000\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%_16_kHz_out.pcm tmp.pcm -fs 16000 >> test_decoder_report.txt\r
-\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -Fs_API 32000\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%_32_kHz_out.pcm tmp.pcm -fs 32000 >> test_decoder_report.txt\r
-\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -Fs_API 44100\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%_44100_Hz_out.pcm tmp.pcm -fs 44100 >> test_decoder_report.txt\r
-\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -Fs_API 48000\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%_48_kHz_out.pcm tmp.pcm -fs 48000 >> test_decoder_report.txt\r
-\r
-:: 12 kHz, 40 ms, 16 kbps, complexity 1\r
-SET PARAMS=12_kHz_40_ms_16_kbps\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm \r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%.pcm tmp.pcm >> test_decoder_report.txt\r
-\r
-:: 12 kHz, 20 ms, 24 kbps, 10% packet loss, FEC\r
-SET PARAMS=12_kHz_20_ms_24_kbps_10_loss_FEC\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -loss 10\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%.pcm tmp.pcm >> test_decoder_report.txt\r
-\r
-\r
-:: 16 kHz\r
-\r
-:: 16 kHz, 60 ms, 12 kbps, complexity 0\r
-SET PARAMS=16_kHz_60_ms_12_kbps\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm \r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%.pcm tmp.pcm >> test_decoder_report.txt\r
-\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -Fs_API 16000\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%_16_kHz_out.pcm tmp.pcm -fs 16000 >> test_decoder_report.txt\r
-\r
-:: 16 kHz, 40 ms, 20 kbps, complexity 1\r
-SET PARAMS=16_kHz_40_ms_20_kbps\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm \r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%.pcm tmp.pcm >> test_decoder_report.txt\r
-\r
-:: 16 kHz, 20 ms, 32 kbps, 10% packet loss, FEC\r
-SET PARAMS=16_kHz_20_ms_32_kbps_10_loss_FEC\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -loss 10\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%.pcm tmp.pcm >> test_decoder_report.txt\r
-\r
-\r
-:: 24 kHz\r
-\r
-:: 24 kHz, 60 ms, 16 kbps, complexity 0\r
-SET PARAMS=24_kHz_60_ms_16_kbps\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm \r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%.pcm tmp.pcm >> test_decoder_report.txt\r
-\r
-:: 24 kHz, 40 ms, 24 kbps, complexity 1\r
-SET PARAMS=24_kHz_40_ms_24_kbps\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm \r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%.pcm tmp.pcm >> test_decoder_report.txt\r
-\r
-:: 24 kHz, 20 ms, 40 kbps, 10% packet loss, FEC\r
-SET PARAMS=24_kHz_20_ms_40_kbps_10_loss_FEC\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -loss 10\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%.pcm tmp.pcm >> test_decoder_report.txt\r
-\r
-\r
-:: 32 kHz\r
-\r
-:: 32 kHz, 20 ms, 8 kbps, maxInternal 8kHz\r
-SET PARAMS=32_kHz_max_8_kHz_20_ms_8_kbps\r
-\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%.pcm tmp.pcm >> test_decoder_report.txt\r
-\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -Fs_API 32000\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%_32_kHz_out.pcm tmp.pcm -fs 32000 >> test_decoder_report.txt\r
-\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -Fs_API 44100\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%_44100_Hz_out.pcm tmp.pcm -fs 44100 >> test_decoder_report.txt\r
-\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm -Fs_API 48000\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%_48_kHz_out.pcm tmp.pcm -fs 48000 >> test_decoder_report.txt\r
-\r
-\r
-:: 44100 Hz\r
-\r
-:: 44100 Hz, 20 ms, 40 kbps\r
-SET PARAMS=44100_Hz_20_ms_7_kbps\r
-\r
-%DEC% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.pcm\r
-%COMP% %OUTPUTPATH%testvector_output_%PARAMS%.pcm tmp.pcm >> test_decoder_report.txt\r
-\r
-\r
-del tmp.pcm\r
-move test_decoder_report.txt ./test_vectors/test_decoder_report.txt\r
-\r
-echo.\r
-echo The results have been saved as test_decoder_report.txt\r
-echo.\r
-\r
-pause\r
+++ /dev/null
-#!/bin/bash
-
-BITSTREAMPATH=./test_vectors/bitstream/
-OUTPUTPATH=./test_vectors/output/
-DEC=decoder
-COMP=signalcompare
-
-cd ..
-
-
-# 8 kHz
-
-# 8 kHz, 60 ms, 8 kbps, complexity 0
-PARAMS=8_kHz_60_ms_8_kbps
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}.pcm tmp.pcm -fs 24000 > test_decoder_report.txt
-
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -Fs_API 8000
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}_8_kHz_out.pcm tmp.pcm -fs 8000 >> test_decoder_report.txt
-
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -Fs_API 12000
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}_12_kHz_out.pcm tmp.pcm -fs 12000 >> test_decoder_report.txt
-
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -Fs_API 16000
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}_16_kHz_out.pcm tmp.pcm -fs 16000 >> test_decoder_report.txt
-
-# 8 kHz, 40 ms, 12 kbps, complexity 1
-PARAMS=8_kHz_40_ms_12_kbps
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}.pcm tmp.pcm >> test_decoder_report.txt
-
-# 8 kHz, 20 ms, 20 kbps, 10% packet loss, FEC
-PARAMS=8_kHz_20_ms_20_kbps_10_loss_FEC
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -loss 10
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}.pcm tmp.pcm >> test_decoder_report.txt
-
-
-# 12 kHz
-
-# 12 kHz, 60 ms, 10 kbps, complexity 0
-PARAMS=12_kHz_60_ms_10_kbps
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}.pcm tmp.pcm >> test_decoder_report.txt
-
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -Fs_API 12000
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}_12_kHz_out.pcm tmp.pcm -fs 12000 >> test_decoder_report.txt
-
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -Fs_API 16000
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}_16_kHz_out.pcm tmp.pcm -fs 16000 >> test_decoder_report.txt
-
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -Fs_API 32000
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}_32_kHz_out.pcm tmp.pcm -fs 32000 >> test_decoder_report.txt
-
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -Fs_API 44100
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}_44100_Hz_out.pcm tmp.pcm -fs 44100 >> test_decoder_report.txt
-
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -Fs_API 48000
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}_48_kHz_out.pcm tmp.pcm -fs 48000 >> test_decoder_report.txt
-
-# 12 kHz, 40 ms, 16 kbps, complexity 1
-PARAMS=12_kHz_40_ms_16_kbps
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}.pcm tmp.pcm >> test_decoder_report.txt
-
-# 12 kHz, 20 ms, 24 kbps, 10% packet loss, FEC
-PARAMS=12_kHz_20_ms_24_kbps_10_loss_FEC
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -loss 10
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}.pcm tmp.pcm >> test_decoder_report.txt
-
-
-# 16 kHz
-
-# 16 kHz, 60 ms, 12 kbps, complexity 0
-PARAMS=16_kHz_60_ms_12_kbps
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}.pcm tmp.pcm >> test_decoder_report.txt
-
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -Fs_API 16000
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}_16_kHz_out.pcm tmp.pcm -fs 16000 >> test_decoder_report.txt
-
-# 16 kHz, 40 ms, 20 kbps, complexity 1
-PARAMS=16_kHz_40_ms_20_kbps
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}.pcm tmp.pcm >> test_decoder_report.txt
-
-# 16 kHz, 20 ms, 32 kbps, 10% packet loss, FEC
-PARAMS=16_kHz_20_ms_32_kbps_10_loss_FEC
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -loss 10
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}.pcm tmp.pcm >> test_decoder_report.txt
-
-
-# 24 kHz
-
-# 24 kHz, 60 ms, 16 kbps, complexity 0
-PARAMS=24_kHz_60_ms_16_kbps
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}.pcm tmp.pcm >> test_decoder_report.txt
-
-# 24 kHz, 40 ms, 24 kbps, complexity 1
-PARAMS=24_kHz_40_ms_24_kbps
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}.pcm tmp.pcm >> test_decoder_report.txt
-
-# 24 kHz, 20 ms, 40 kbps, 10% packet loss, FEC
-PARAMS=24_kHz_20_ms_40_kbps_10_loss_FEC
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -loss 10
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}.pcm tmp.pcm >> test_decoder_report.txt
-
-
-# 32 kHz
-
-# 32 kHz, 20 ms, 8 kbps, maxInternal 8kHz
-PARAMS=32_kHz_max_8_kHz_20_ms_8_kbps
-
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}.pcm tmp.pcm >> test_decoder_report.txt
-
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -Fs_API 32000
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}_32_kHz_out.pcm tmp.pcm -fs 32000 >> test_decoder_report.txt
-
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -Fs_API 44100
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}_44100_Hz_out.pcm tmp.pcm -fs 44100 >> test_decoder_report.txt
-
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm -Fs_API 48000
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}_48_kHz_out.pcm tmp.pcm -fs 48000 >> test_decoder_report.txt
-
-
-# 44100 Hz
-
-# 44100 Hz, 20 ms, 40 kbps
-PARAMS=44100_Hz_20_ms_7_kbps
-
-./${DEC} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.pcm
-./${COMP} ${OUTPUTPATH}testvector_output_${PARAMS}.pcm tmp.pcm >> test_decoder_report.txt
-
-
-rm tmp.pcm
-mv test_decoder_report.txt ./test_vectors/test_decoder_report.txt
-
-echo ""
-echo "The results have been saved as test_decoder_report.txt"
-echo ""
\ No newline at end of file
+++ /dev/null
-@echo off\r
-\r
-SET INPUTPATH=./test_vectors/input/\r
-SET BITSTREAMPATH=./test_vectors/bitstream/\r
-SET ENC=Encoder.exe\r
-SET COMP=SignalCompare.exe\r
-\r
-cd ..\r
-\r
-:: 8 kHz\r
-SET INPUTFILE=testvector_input_8_kHz.pcm\r
-\r
-:: 8 kHz, 60 ms, 8 kbps, complexity 0\r
-SET PARAMS=8_kHz_60_ms_8_kbps\r
-%ENC% %INPUTPATH%%INPUTFILE% tmp.bit -Fs_API 8000 -packetlength 60 -rate 8000 -complexity 0\r
-%COMP% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.bit -diff > test_encoder_report.txt\r
-\r
-:: 8 kHz, 40 ms, 12 kbps, complexity 1\r
-SET PARAMS=8_kHz_40_ms_12_kbps\r
-%ENC% %INPUTPATH%%INPUTFILE% tmp.bit -Fs_API 8000 -packetlength 40 -rate 12000 -complexity 1\r
-%COMP% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.bit -diff >> test_encoder_report.txt\r
-\r
-:: 8 kHz, 20 ms, 20 kbps, 10% packet loss, FEC\r
-SET PARAMS=8_kHz_20_ms_20_kbps_10_loss_FEC\r
-%ENC% %INPUTPATH%%INPUTFILE% tmp.bit -Fs_API 8000 -packetlength 20 -rate 20000 -loss 10 -inbandFEC 1\r
-%COMP% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.bit -diff >> test_encoder_report.txt\r
-\r
-\r
-:: 12 kHz\r
-SET INPUTFILE=testvector_input_12_kHz.pcm\r
-\r
-:: 12 kHz, 60 ms, 10 kbps, complexity 0\r
-SET PARAMS=12_kHz_60_ms_10_kbps\r
-%ENC% %INPUTPATH%%INPUTFILE% tmp.bit -Fs_API 12000 -packetlength 60 -rate 10000 -complexity 0\r
-%COMP% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.bit -diff >> test_encoder_report.txt\r
-\r
-:: 12 kHz, 40 ms, 16 kbps, complexity 1\r
-SET PARAMS=12_kHz_40_ms_16_kbps\r
-%ENC% %INPUTPATH%%INPUTFILE% tmp.bit -Fs_API 12000 -packetlength 40 -rate 16000 -complexity 1\r
-%COMP% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.bit -diff >> test_encoder_report.txt\r
-\r
-:: 12 kHz, 20 ms, 24 kbps, 10% packet loss, FEC\r
-SET PARAMS=12_kHz_20_ms_24_kbps_10_loss_FEC\r
-%ENC% %INPUTPATH%%INPUTFILE% tmp.bit -Fs_API 12000 -packetlength 20 -rate 24000 -loss 10 -inbandFEC 1\r
-%COMP% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.bit -diff >> test_encoder_report.txt\r
-\r
-\r
-:: 16 kHz\r
-SET INPUTFILE=testvector_input_16_kHz.pcm\r
-\r
-:: 16 kHz, 60 ms, 12 kbps, complexity 0\r
-SET PARAMS=16_kHz_60_ms_12_kbps\r
-%ENC% %INPUTPATH%%INPUTFILE% tmp.bit -Fs_API 16000 -packetlength 60 -rate 12000 -complexity 0\r
-%COMP% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.bit -diff >> test_encoder_report.txt\r
-\r
-:: 16 kHz, 40 ms, 20 kbps, complexity 1\r
-SET PARAMS=16_kHz_40_ms_20_kbps\r
-%ENC% %INPUTPATH%%INPUTFILE% tmp.bit -Fs_API 16000 -packetlength 40 -rate 20000 -complexity 1\r
-%COMP% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.bit -diff >> test_encoder_report.txt\r
-\r
-:: 16 kHz, 20 ms, 32 kbps, 10% packet loss, FEC\r
-SET PARAMS=16_kHz_20_ms_32_kbps_10_loss_FEC\r
-%ENC% %INPUTPATH%%INPUTFILE% tmp.bit -Fs_API 16000 -packetlength 20 -rate 32000 -loss 10 -inbandFEC 1\r
-%COMP% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.bit -diff >> test_encoder_report.txt\r
-\r
-\r
-:: 24 kHz\r
-SET INPUTFILE=testvector_input_24_kHz.pcm\r
-\r
-:: 24 kHz, 60 ms, 16 kbps, complexity 0\r
-SET PARAMS=24_kHz_60_ms_16_kbps\r
-%ENC% %INPUTPATH%%INPUTFILE% tmp.bit -Fs_API 24000 -packetlength 60 -rate 16000 -complexity 0\r
-%COMP% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.bit -diff >> test_encoder_report.txt\r
-\r
-:: 24 kHz, 40 ms, 24 kbps, complexity 1\r
-SET PARAMS=24_kHz_40_ms_24_kbps\r
-%ENC% %INPUTPATH%%INPUTFILE% tmp.bit -Fs_API 24000 -packetlength 40 -rate 24000 -complexity 1\r
-%COMP% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.bit -diff >> test_encoder_report.txt\r
-\r
-:: 24 kHz, 20 ms, 40 kbps, 10% packet loss, FEC\r
-SET PARAMS=24_kHz_20_ms_40_kbps_10_loss_FEC\r
-%ENC% %INPUTPATH%%INPUTFILE% tmp.bit -Fs_API 24000 -packetlength 20 -rate 40000 -loss 10 -inbandFEC 1\r
-%COMP% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.bit -diff >> test_encoder_report.txt\r
-\r
-\r
-:: 32 kHz\r
-SET INPUTFILE=testvector_input_32_kHz.pcm\r
-\r
-:: 32 kHz, 20 ms, 8 kbps, maxInternal 8kHz\r
-SET PARAMS=32_kHz_max_8_kHz_20_ms_8_kbps\r
-%ENC% %INPUTPATH%%INPUTFILE% tmp.bit -Fs_API 32000 -Fs_maxInternal 8000 -packetlength 20 -rate 8000\r
-%COMP% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.bit -diff >> test_encoder_report.txt\r
-\r
-\r
-:: 44100 Hz\r
-SET INPUTFILE=testvector_input_44100_Hz.pcm\r
-\r
-:: 44100 Hz, 20 ms, 40 kbps\r
-SET PARAMS=44100_Hz_20_ms_7_kbps\r
-%ENC% %INPUTPATH%%INPUTFILE% tmp.bit -Fs_API 44100 -packetlength 20 -rate 7000\r
-%COMP% %BITSTREAMPATH%payload_%PARAMS%.bit tmp.bit -diff >> test_encoder_report.txt\r
-\r
-\r
-del tmp.bit\r
-move test_encoder_report.txt ./test_vectors/test_encoder_report.txt\r
-\r
-echo.\r
-echo The results have been saved as test_encoder_report.txt\r
-echo.\r
-\r
-pause\r
+++ /dev/null
-#!/bin/bash
-
-INPUTPATH=./test_vectors/input/
-BITSTREAMPATH=./test_vectors/bitstream/
-ENC=encoder
-COMP=signalcompare
-
-cd ..
-
-# 8 kHz
-INPUTFILE=testvector_input_8_kHz.pcm
-
-# 8 kHz, 60 ms, 8 kbps, complexity 0
-PARAMS=8_kHz_60_ms_8_kbps
-./${ENC} ${INPUTPATH}${INPUTFILE} tmp.bit -Fs_API 8000 -packetlength 60 -rate 8000 -complexity 0
-./${COMP} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.bit -diff > test_encoder_report.txt
-
-# 8 kHz, 40 ms, 12 kbps, complexity 1
-PARAMS=8_kHz_40_ms_12_kbps
-./${ENC} ${INPUTPATH}${INPUTFILE} tmp.bit -Fs_API 8000 -packetlength 40 -rate 12000 -complexity 1
-./${COMP} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.bit -diff >> test_encoder_report.txt
-
-# 8 kHz, 20 ms, 20 kbps, 10% packet loss, FEC
-PARAMS=8_kHz_20_ms_20_kbps_10_loss_FEC
-./${ENC} ${INPUTPATH}${INPUTFILE} tmp.bit -Fs_API 8000 -packetlength 20 -rate 20000 -loss 10 -inbandFEC 1
-./${COMP} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.bit -diff >> test_encoder_report.txt
-
-
-# 12 kHz
-INPUTFILE=testvector_input_12_kHz.pcm
-
-# 12 kHz, 60 ms, 10 kbps, complexity 0
-PARAMS=12_kHz_60_ms_10_kbps
-./${ENC} ${INPUTPATH}${INPUTFILE} tmp.bit -Fs_API 12000 -packetlength 60 -rate 10000 -complexity 0
-./${COMP} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.bit -diff >> test_encoder_report.txt
-
-# 12 kHz, 40 ms, 16 kbps, complexity 1
-PARAMS=12_kHz_40_ms_16_kbps
-./${ENC} ${INPUTPATH}${INPUTFILE} tmp.bit -Fs_API 12000 -packetlength 40 -rate 16000 -complexity 1
-./${COMP} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.bit -diff >> test_encoder_report.txt
-
-# 12 kHz, 20 ms, 24 kbps, 10% packet loss, FEC
-PARAMS=12_kHz_20_ms_24_kbps_10_loss_FEC
-./${ENC} ${INPUTPATH}${INPUTFILE} tmp.bit -Fs_API 12000 -packetlength 20 -rate 24000 -loss 10 -inbandFEC 1
-./${COMP} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.bit -diff >> test_encoder_report.txt
-
-
-# 16 kHz
-INPUTFILE=testvector_input_16_kHz.pcm
-
-# 16 kHz, 60 ms, 12 kbps, complexity 0
-PARAMS=16_kHz_60_ms_12_kbps
-./${ENC} ${INPUTPATH}${INPUTFILE} tmp.bit -Fs_API 16000 -packetlength 60 -rate 12000 -complexity 0
-./${COMP} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.bit -diff >> test_encoder_report.txt
-
-# 16 kHz, 40 ms, 20 kbps, complexity 1
-PARAMS=16_kHz_40_ms_20_kbps
-./${ENC} ${INPUTPATH}${INPUTFILE} tmp.bit -Fs_API 16000 -packetlength 40 -rate 20000 -complexity 1
-./${COMP} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.bit -diff >> test_encoder_report.txt
-
-# 16 kHz, 20 ms, 32 kbps, 10% packet loss, FEC
-PARAMS=16_kHz_20_ms_32_kbps_10_loss_FEC
-./${ENC} ${INPUTPATH}${INPUTFILE} tmp.bit -Fs_API 16000 -packetlength 20 -rate 32000 -loss 10 -inbandFEC 1
-./${COMP} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.bit -diff >> test_encoder_report.txt
-
-
-# 24 kHz
-INPUTFILE=testvector_input_24_kHz.pcm
-
-# 24 kHz, 60 ms, 16 kbps, complexity 0
-PARAMS=24_kHz_60_ms_16_kbps
-./${ENC} ${INPUTPATH}${INPUTFILE} tmp.bit -Fs_API 24000 -packetlength 60 -rate 16000 -complexity 0
-./${COMP} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.bit -diff >> test_encoder_report.txt
-
-# 24 kHz, 40 ms, 24 kbps, complexity 1
-PARAMS=24_kHz_40_ms_24_kbps
-./${ENC} ${INPUTPATH}${INPUTFILE} tmp.bit -Fs_API 24000 -packetlength 40 -rate 24000 -complexity 1
-./${COMP} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.bit -diff >> test_encoder_report.txt
-
-# 24 kHz, 20 ms, 40 kbps, 10% packet loss, FEC
-PARAMS=24_kHz_20_ms_40_kbps_10_loss_FEC
-./${ENC} ${INPUTPATH}${INPUTFILE} tmp.bit -Fs_API 24000 -packetlength 20 -rate 40000 -loss 10 -inbandFEC 1
-./${COMP} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.bit -diff >> test_encoder_report.txt
-
-
-# 32 kHz
-INPUTFILE=testvector_input_32_kHz.pcm
-
-# 32 kHz, 20 ms, 8 kbps, maxInternal 8kHz
-PARAMS=32_kHz_max_8_kHz_20_ms_8_kbps
-./${ENC} ${INPUTPATH}${INPUTFILE} tmp.bit -Fs_API 32000 -Fs_maxInternal 8000 -packetlength 20 -rate 8000
-./${COMP} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.bit -diff >> test_encoder_report.txt
-
-
-# 44100 Hz
-INPUTFILE=testvector_input_44100_Hz.pcm
-
-# 44100 Hz, 20 ms, 40 kbps
-PARAMS=44100_Hz_20_ms_7_kbps
-./${ENC} ${INPUTPATH}${INPUTFILE} tmp.bit -Fs_API 44100 -packetlength 20 -rate 7000
-./${COMP} ${BITSTREAMPATH}payload_${PARAMS}.bit tmp.bit -diff >> test_encoder_report.txt
-
-
-rm tmp.bit
-mv test_encoder_report.txt ./test_vectors/test_encoder_report.txt
-
-echo ""
-echo "The results have been saved as test_encoder_report.txt"
-echo ""
\ No newline at end of file
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projects / thirdparty / freeswitch.git / commitdiff
