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-/*
- * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
- * Copyright (C) 2005-2014, Anthony Minessale II <anthm@freeswitch.org>
- *
- * Version: MPL 1.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
- *
- * The Initial Developer of the Original Code is
- * Anthony Minessale II <anthm@freeswitch.org>
- * Portions created by the Initial Developer are Copyright (C)
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Anthony Minessale II <anthm@freeswitch.org>
- *
- *
- * mod_cepstral.c -- Cepstral Interface
- *
- * Contains some material derived from the Cepstral Swift SDK, by
- * permission. You are free to copy and modify the source under the
- * terms of FreeSWITCH itself, without additional permission from
- * Cepstral
- *
- *
- */
-#ifdef __ICC
-#pragma warning (disable:188)
-#endif
-#include <swift.h>
-#include <switch.h>
-
-#define MY_BUF_LEN 1024 * 32
-#define MY_BLOCK_SIZE MY_BUF_LEN
-
-#undef SWIFT_FAILED
-#define SWIFT_FAILED(r) ((void *)(r) < (void *)0)
-
-SWITCH_MODULE_LOAD_FUNCTION(mod_cepstral_load);
-SWITCH_MODULE_DEFINITION_EX(mod_cepstral, mod_cepstral_load, NULL, NULL, SMODF_GLOBAL_SYMBOLS);
-
-static swift_engine *engine;
-
-
-typedef struct {
- swift_background_t tts_stream;
- swift_port *port;
- swift_params *params;
- swift_voice *voice;
- switch_mutex_t *audio_lock;
- switch_buffer_t *audio_buffer;
- int done;
- int done_gen;
-} cepstral_t;
-
-
-static struct {
- char *encoding;
-} globals;
-
-SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_global_encoding, globals.encoding);
-
-
-
-/* This callback caches the audio in the buffer */
-static swift_result_t write_audio(swift_event * event, swift_event_t type, void *udata)
-{
- cepstral_t *cepstral;
- swift_event_t rv = SWIFT_SUCCESS;
- void *buf = NULL;
- int len = 0, i = 0;
-
- cepstral = udata;
- assert(cepstral != NULL);
-
- if (!cepstral->port || cepstral->done || cepstral->done_gen) {
- return SWIFT_UNKNOWN_ERROR;
- }
-
- /* Only proceed when we have success */
- if (!SWIFT_FAILED((rv = swift_event_get_audio(event, &buf, &len)))) {
- while (!cepstral->done) {
- switch_mutex_lock(cepstral->audio_lock);
- if (switch_buffer_write(cepstral->audio_buffer, buf, len) > 0) {
- switch_mutex_unlock(cepstral->audio_lock);
- break;
- }
- switch_mutex_unlock(cepstral->audio_lock);
- if (!cepstral->done) {
- for (i = 0; i < 10; i++) {
- switch_yield(10000);
- if (cepstral->done) {
- break;
- }
- }
- }
-
- }
- } else {
- cepstral->done = 1;
- }
-
- if (cepstral->done) {
- rv = SWIFT_UNKNOWN_ERROR;
- }
-
- return rv;
-}
-
-static switch_status_t cepstral_speech_open(switch_speech_handle_t *sh, const char *voice_name, int rate, int channels, switch_speech_flag_t *flags)
-{
- cepstral_t *cepstral = switch_core_alloc(sh->memory_pool, sizeof(*cepstral));
- char srate[25];
-
- if (!cepstral) {
- return SWITCH_STATUS_MEMERR;
- }
-
- if (switch_buffer_create_dynamic(&cepstral->audio_buffer, MY_BLOCK_SIZE, MY_BUF_LEN, 0) != SWITCH_STATUS_SUCCESS) {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Write Buffer Failed!\n");
- return SWITCH_STATUS_MEMERR;
- }
-
-
- switch_mutex_init(&cepstral->audio_lock, SWITCH_MUTEX_NESTED, sh->memory_pool);
-
-
- cepstral->params = swift_params_new(NULL);
- swift_params_set_string(cepstral->params, "audio/encoding", "pcm16");
- switch_snprintf(srate, sizeof(srate), "%d", rate);
- swift_params_set_string(cepstral->params, "audio/sampling-rate", srate);
-
-
- /* Open a Swift Port through which to make TTS calls */
- if (!(cepstral->port = swift_port_open(engine, cepstral->params))) {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to open Swift Port.\n");
- goto all_done;
- }
-
-
- if (voice_name && SWIFT_FAILED(swift_port_set_voice_by_name(cepstral->port, voice_name))) {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Invalid voice %s!\n", voice_name);
- voice_name = NULL;
- }
-
- if (zstr(voice_name)) {
- /* Find the first voice on the system */
- if ((cepstral->voice = swift_port_find_first_voice(cepstral->port, NULL, NULL)) == NULL) {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to find any voices!\n");
- goto all_done;
- }
-
- /* Set the voice found by find_first_voice() as the port's current voice */
- if (SWIFT_FAILED(swift_port_set_voice(cepstral->port, cepstral->voice))) {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to set voice.\n");
- goto all_done;
- }
-
- voice_name = (char *) swift_voice_get_attribute(cepstral->voice, "name");
- }
-
- if (voice_name) {
- switch_copy_string(sh->voice, voice_name, sizeof(sh->voice));
- }
-
- swift_port_set_callback(cepstral->port, &write_audio, SWIFT_EVENT_AUDIO, cepstral);
-
- sh->private_info = cepstral;
- return SWITCH_STATUS_SUCCESS;
-
- all_done:
- return SWITCH_STATUS_FALSE;
-}
-
-static switch_status_t cepstral_speech_close(switch_speech_handle_t *sh, switch_speech_flag_t *flags)
-{
- cepstral_t *cepstral;
-
- assert(sh != NULL);
- cepstral = sh->private_info;
- assert(cepstral != NULL);
-
-
- cepstral->done = 1;
- cepstral->done_gen = 1;
- swift_port_stop(cepstral->port, SWIFT_ASYNC_ANY, SWIFT_EVENT_NOW);
- /* Close the Swift Port and Engine */
- if (NULL != cepstral->port)
- swift_port_close(cepstral->port);
- //if (NULL != cepstral->engine) swift_engine_close(cepstral->engine);
-
- cepstral->port = NULL;
- //cepstral->engine = NULL;
-
- switch_buffer_destroy(&cepstral->audio_buffer);
-
- return SWITCH_STATUS_SUCCESS;
-}
-
-static switch_status_t cepstral_speech_feed_tts(switch_speech_handle_t *sh, char *text, switch_speech_flag_t *flags)
-{
- cepstral_t *cepstral;
- const char *fp = "file:";
- int len = (int) strlen(fp);
-
- assert(sh != NULL);
- cepstral = sh->private_info;
- assert(cepstral != NULL);
-
- cepstral->done_gen = 0;
- cepstral->done = 0;
-
- cepstral->tts_stream = NULL;
-
- if (zstr(text)) {
- return SWITCH_STATUS_FALSE;
- }
- if (!strncasecmp(text, fp, len)) {
- text += len;
- if (zstr(text)) {
- return SWITCH_STATUS_FALSE;
- }
- swift_port_speak_file(cepstral->port, text, globals.encoding, &cepstral->tts_stream, NULL);
- } else {
- char *to_say;
- if (zstr(text)) {
- return SWITCH_STATUS_FALSE;
- }
-
- if ((to_say = switch_mprintf("<break time=\"1000ms\"/> %s <break time=\"1000ms\"/>", text))) {
- swift_port_speak_text(cepstral->port, to_say, 0, globals.encoding, &cepstral->tts_stream, NULL);
- switch_safe_free(to_say);
- }
- }
-
- return SWITCH_STATUS_SUCCESS;
-}
-
-static void cepstral_speech_flush_tts(switch_speech_handle_t *sh)
-{
- cepstral_t *cepstral;
-
- cepstral = sh->private_info;
- assert(cepstral != NULL);
-
- cepstral->done_gen = 1;
- cepstral->done = 1;
- if (cepstral->audio_buffer) {
- switch_mutex_lock(cepstral->audio_lock);
- switch_buffer_zero(cepstral->audio_buffer);
- switch_mutex_unlock(cepstral->audio_lock);
- }
- swift_port_stop(cepstral->port, SWIFT_ASYNC_ANY, SWIFT_EVENT_NOW);
-}
-
-static switch_status_t cepstral_speech_read_tts(switch_speech_handle_t *sh, void *data, size_t *datalen, switch_speech_flag_t *flags)
-{
- cepstral_t *cepstral;
- size_t desired = *datalen;
- switch_status_t status = SWITCH_STATUS_FALSE;
- size_t used, padding = 0;
-
- assert(sh != NULL);
- cepstral = sh->private_info;
- assert(cepstral != NULL);
-
- while (!cepstral->done) {
- if (!cepstral->done_gen) {
- int check = swift_port_status(cepstral->port, cepstral->tts_stream);
-
- if (!check == SWIFT_STATUS_RUNNING) {
- cepstral->done_gen = 1;
- }
- }
-
- switch_mutex_lock(cepstral->audio_lock);
- used = switch_buffer_inuse(cepstral->audio_buffer);
- switch_mutex_unlock(cepstral->audio_lock);
-
-
- if (!used && cepstral->done_gen) {
- status = SWITCH_STATUS_BREAK;
- break;
- }
-
- /* wait for the right amount of data (unless there is no blocking flag) */
- if (used < desired) {
- if (cepstral->done_gen) {
- padding = desired - used;
- desired = used;
- }
- if (!(*flags & SWITCH_SPEECH_FLAG_BLOCKING)) {
- *datalen = 0;
- status = SWITCH_STATUS_SUCCESS;
- break;
- }
- switch_cond_next();
- continue;
- }
-
- /* There is enough, read it and return */
- switch_mutex_lock(cepstral->audio_lock);
- *datalen = switch_buffer_read(cepstral->audio_buffer, data, desired);
- if (padding) {
- size_t x = 0;
- unsigned char *p = data;
-
- for (x = 0; x < padding; x++) {
- *(p + x) = 0;
- (*datalen)++;
- }
- }
-
- switch_mutex_unlock(cepstral->audio_lock);
- status = SWITCH_STATUS_SUCCESS;
-
- break;
- }
-
- return status;
-}
-
-static void cepstral_text_param_tts(switch_speech_handle_t *sh, char *param, const char *val)
-{
- cepstral_t *cepstral;
-
- cepstral = sh->private_info;
- assert(cepstral != NULL);
-
- if (!strcasecmp(param, "voice")) {
- const char *voice_name = val;
- if (!strcasecmp(voice_name, "next")) {
- if ((cepstral->voice = swift_port_find_next_voice(cepstral->port))) {
- if (SWIFT_FAILED(swift_port_set_voice(cepstral->port, cepstral->voice))) {
- cepstral->done = cepstral->done_gen = 1;
- return;
- }
- voice_name = swift_voice_get_attribute(cepstral->voice, "name");
- } else {
- voice_name = NULL;
- }
- } else {
- if (voice_name && SWIFT_FAILED(swift_port_set_voice_by_name(cepstral->port, voice_name))) {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Invalid voice %s!\n", voice_name);
- voice_name = NULL;
- }
- }
-
- if (!voice_name) {
- /* Find the first voice on the system */
- if ((cepstral->voice = swift_port_find_first_voice(cepstral->port, NULL, NULL)) == NULL) {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to find any voices!\n");
- cepstral->done = cepstral->done_gen = 1;
- return;
- }
-
- /* Set the voice found by find_first_voice() as the port's current voice */
- if (SWIFT_FAILED(swift_port_set_voice(cepstral->port, cepstral->voice))) {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to set voice.\n");
- cepstral->done = cepstral->done_gen = 1;
- return;
- }
-
- voice_name = swift_voice_get_attribute(cepstral->voice, "name");
- }
-
- if (voice_name) {
- switch_copy_string(sh->voice, voice_name, sizeof(sh->voice));
- }
-
- return;
- }
-
- swift_port_set_param_string(cepstral->port, param, val, NULL);
-}
-
-static void cepstral_numeric_param_tts(switch_speech_handle_t *sh, char *param, int val)
-{
- cepstral_t *cepstral;
-
- cepstral = sh->private_info;
- assert(cepstral != NULL);
-
- swift_port_set_param_int(cepstral->port, param, val, NULL);
-
-}
-
-
-static void cepstral_float_param_tts(switch_speech_handle_t *sh, char *param, double val)
-{
- cepstral_t *cepstral;
-
- cepstral = sh->private_info;
- assert(cepstral != NULL);
-
- swift_port_set_param_float(cepstral->port, param, val, NULL);
-
-}
-
-static switch_status_t load_config(void)
-{
- char *cf = "cepstral.conf";
- switch_xml_t cfg, xml = NULL, param, settings;
-
- /* Init to SWIFT default encoding */
- set_global_encoding(SWIFT_DEFAULT_ENCODING);
-
- if (xml = switch_xml_open_cfg(cf, &cfg, NULL)) {
- if ((settings = switch_xml_child(cfg, "settings"))) {
- for (param = switch_xml_child(settings, "param"); param; param = param->next) {
- char *var = (char *) switch_xml_attr_soft(param, "name");
- char *val = (char *) switch_xml_attr_soft(param, "value");
- if (!strcasecmp(var, "encoding")) {
- if (!strcasecmp(val, "utf-8")) {
- set_global_encoding(SWIFT_UTF8);
- } else if (!strcasecmp(val, "us-ascii")) {
- set_global_encoding(SWIFT_ASCII);
- } else if (!strcasecmp(val, "iso8859-1")) {
- set_global_encoding(SWIFT_ISO_8859_1);
- } else if (!strcasecmp(val, "iso8859-15")) {
- set_global_encoding(SWIFT_ISO_8859_15);
- } else {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Unknown value \"%s\" for param \"%s\". Setting to default.\n", val, var);
- }
- } else {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Param \"%s\" unknown\n", var);
- }
- }
- }
- } else {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Open of \"%s\" failed. Using default settings.\n", cf);
- }
-
- if (xml) {
- switch_xml_free(xml);
- }
-
- return SWITCH_STATUS_SUCCESS;
-}
-
-SWITCH_MODULE_LOAD_FUNCTION(mod_cepstral_load)
-{
- switch_speech_interface_t *speech_interface;
-
- memset(&globals, 0, sizeof(globals));
- load_config();
-
- /* Open the Swift TTS Engine */
- if (!(engine = swift_engine_open(NULL))) {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to open Swift Engine.");
- return SWITCH_STATUS_GENERR;
- }
-
- /* connect my internal structure to the blank pointer passed to me */
- *module_interface = switch_loadable_module_create_module_interface(pool, modname);
- speech_interface = switch_loadable_module_create_interface(*module_interface, SWITCH_SPEECH_INTERFACE);
- speech_interface->interface_name = "cepstral";
- speech_interface->speech_open = cepstral_speech_open;
- speech_interface->speech_close = cepstral_speech_close;
- speech_interface->speech_feed_tts = cepstral_speech_feed_tts;
- speech_interface->speech_read_tts = cepstral_speech_read_tts;
- speech_interface->speech_flush_tts = cepstral_speech_flush_tts;
- speech_interface->speech_text_param_tts = cepstral_text_param_tts;
- speech_interface->speech_numeric_param_tts = cepstral_numeric_param_tts;
- speech_interface->speech_float_param_tts = cepstral_float_param_tts;
-
- /* indicate that the module should continue to be loaded */
- return SWITCH_STATUS_SUCCESS;
-}
-
-/* For Emacs:
- * Local Variables:
- * mode:c
- * indent-tabs-mode:t
- * tab-width:4
- * c-basic-offset:4
- * End:
- * For VIM:
- * vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
- */
projects / thirdparty / freeswitch.git / commitdiff
