--- /dev/null
+/*
+ * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ * Copyright (C) 2005-2013, 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
+ * Seven Du <dujinfang@gmail.com>
+ * Portions created by the Initial Developer are Copyright (C)
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Seven Du <dujinfang@gmail.com>
+ *
+ * mod_openh264 -- H264 Coded Using Cisco OpenH264
+ *
+ */
+
+// #define DEBUG_H264
+#include <switch.h>
+
+#define EPSN (0.000001f) // (1e-6) // desired float precision
+#define PESN (0.000001f) // (1e-6) // desired float precision
+#define MT_ENABLED
+
+#include "codec_api.h"
+//#include "inc/logging.h" // for debug
+
+#define FPS 15.0f // frame rate
+#define H264_NALU_BUFFER_SIZE 65536
+#define MAX_NALUS 100
+#define SLICE_SIZE 1200 //NALU Slice Size
+
+SWITCH_MODULE_LOAD_FUNCTION(mod_openh264_load);
+SWITCH_MODULE_DEFINITION(mod_openh264, mod_openh264_load, NULL, NULL);
+
+typedef struct h264_codec_context_s {
+ ISVCEncoder *encoder;
+ switch_bool_t encoder_initialized;
+ SEncParamExt encoder_params;
+ SFrameBSInfo bit_stream_info;
+ EVideoFrameType last_frame_type;
+ int cur_layer;
+ int cur_nalu_index;
+ uint8_t last_nalu_type;
+ uint8_t last_nri;
+ int last_nalu_data_pos;
+ int nalu_eat;
+
+ ISVCDecoder *decoder;
+ SDecodingParam decoder_params;
+ switch_buffer_t *nalu_buffer;
+ switch_image_t *img;
+ int got_sps;
+ int64_t pts;
+ switch_size_t last_received_timestamp;
+ switch_bool_t last_received_complete_picture;
+} h264_codec_context_t;
+
+int FillSpecificParameters(SEncParamExt& param) {
+ /* Test for temporal, spatial, SNR scalability */
+ param.iPicWidth = 352; // width of picture in samples
+ param.iPicHeight = 288; // height of picture in samples
+ param.iTargetBitrate = 384000; // target bitrate desired
+ param.iRCMode = RC_QUALITY_MODE; // rc mode control
+ param.uiMaxNalSize = SLICE_SIZE * 20;
+ param.iTemporalLayerNum = 1; // layer number at temporal level
+ param.iSpatialLayerNum = 1; // layer number at spatial level
+ param.bEnableDenoise = 0; // denoise control
+ param.bEnableBackgroundDetection = 1; // background detection control
+ param.bEnableAdaptiveQuant = 1; // adaptive quantization control
+ param.bEnableLongTermReference = 0; // long term reference control
+ param.iLtrMarkPeriod = 30;
+
+ param.iComplexityMode = MEDIUM_COMPLEXITY;
+ param.uiIntraPeriod = FPS * 3; // period of Intra frame
+ param.bEnableSpsPpsIdAddition = 0;
+ param.bPrefixNalAddingCtrl = 0;
+
+ int iIndexLayer = 0;
+ param.sSpatialLayers[iIndexLayer].iVideoWidth = 352;
+ param.sSpatialLayers[iIndexLayer].iVideoHeight = 288;
+ param.sSpatialLayers[iIndexLayer].fFrameRate = 15.0f;
+ // param.sSpatialLayers[iIndexLayer].iQualityLayerNum = 1;
+ param.sSpatialLayers[iIndexLayer].iSpatialBitrate = 384000;
+
+#ifdef MT_ENABLED
+ param.sSpatialLayers[iIndexLayer].sSliceCfg.uiSliceMode = SM_DYN_SLICE;
+ param.sSpatialLayers[iIndexLayer].sSliceCfg.sSliceArgument.uiSliceSizeConstraint = SLICE_SIZE;
+
+#endif
+
+ float fMaxFr = param.sSpatialLayers[param.iSpatialLayerNum - 1].fFrameRate;
+ for (int32_t i = param.iSpatialLayerNum - 2; i >= 0; --i) {
+ if (param.sSpatialLayers[i].fFrameRate > fMaxFr + EPSN) {
+ fMaxFr = param.sSpatialLayers[i].fFrameRate;
+ }
+ }
+ param.fMaxFrameRate = fMaxFr;
+
+ return 0;
+}
+
+// return none-zero on error
+long set_decoder_options(ISVCDecoder *decoder)
+{
+ int32_t iColorFormat = videoFormatI420;
+ // EBufferProperty eOutputProperty = BUFFER_HOST;
+ long ret = 0;
+
+ ret += decoder->SetOption(DECODER_OPTION_DATAFORMAT, &iColorFormat);
+ // ret += decoder->SetOption(DECODER_OPTION_OUTPUT_PROPERTY, &eOutputProperty);
+
+ return ret;
+}
+
+static switch_size_t buffer_h264_nalu(h264_codec_context_t *context, switch_frame_t *frame)
+{
+ uint8_t nalu_idc = 0;
+ uint8_t nalu_type = 0;
+ uint8_t *data = (uint8_t *)frame->data;
+ uint8_t nalu_hdr = *data;
+ uint8_t sync_bytes[] = {0, 0, 0, 1};
+ switch_buffer_t *buffer = context->nalu_buffer;
+ switch_size_t size = 0;
+
+ if (!frame) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "No frame in codec!!\n");
+ return size;
+ }
+
+ nalu_idc = (nalu_hdr & 0x60) >> 5;
+ nalu_type = nalu_hdr & 0x1f;
+
+ if (!context->got_sps && nalu_type != 7) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Waiting SPS/PPS\n");
+ switch_set_flag(frame, SFF_WAIT_KEY_FRAME);
+ return size;
+ }
+
+ if (!context->got_sps) context->got_sps = 1;
+
+ size = switch_buffer_write(buffer, sync_bytes, sizeof(sync_bytes));
+ if (size == 0 ) switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Buffer Memory Error!\n");
+
+ size = switch_buffer_write(buffer, frame->data, frame->datalen);
+ if (size == 0 ) switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Buffer Memory Error!\n");
+
+#ifdef DEBUG_H264
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "ts: %ld len: %4d %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x mark=%d size=%d\n",
+ (frame)->timestamp, (frame)->datalen,
+ *((uint8_t *)(frame)->data), *((uint8_t *)(frame)->data + 1),
+ *((uint8_t *)(frame)->data + 2), *((uint8_t *)(frame)->data + 3),
+ *((uint8_t *)(frame)->data + 4), *((uint8_t *)(frame)->data + 5),
+ *((uint8_t *)(frame)->data + 6), *((uint8_t *)(frame)->data + 7),
+ *((uint8_t *)(frame)->data + 8), *((uint8_t *)(frame)->data + 9),
+ *((uint8_t *)(frame)->data + 10), (frame)->m, size);
+#endif
+
+ return size;
+}
+
+static switch_status_t nalu_slice(h264_codec_context_t *context, void *data, uint32_t *len, uint32_t *flag)
+{
+ int nalu_len;
+ uint8_t *buffer;
+ switch_status_t status = SWITCH_STATUS_SUCCESS;
+
+ *flag &= ~SFF_MARKER;
+
+ if (context->cur_nalu_index >= context->bit_stream_info.sLayerInfo[context->cur_layer].iNalCount) {
+ context->cur_nalu_index = 0;
+ context->cur_layer++;
+ context->last_nalu_data_pos = 0;
+ }
+
+#if 0
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "uiTemporalId:%d uiSpatialId:%d uiQualityId:%d uiLayerType:%d FrameType: %d\n",
+ context->bit_stream_info.sLayerInfo[context->cur_layer].uiTemporalId,
+ context->bit_stream_info.sLayerInfo[context->cur_layer].uiSpatialId,
+ context->bit_stream_info.sLayerInfo[context->cur_layer].uiQualityId,
+ context->bit_stream_info.sLayerInfo[context->cur_layer].uiLayerType,
+ context->last_frame_type);
+#endif
+
+ if (context->last_frame_type == videoFrameTypeSkip ||
+ context->cur_layer >= context->bit_stream_info.iLayerNum) {
+ *len = 0;
+ *flag |= SFF_MARKER;
+ context->cur_layer = 0;
+ context->cur_nalu_index = 0;
+ return status;
+ }
+
+ nalu_len = context->bit_stream_info.sLayerInfo[context->cur_layer].pNalLengthInByte[context->cur_nalu_index] - 4; // NALU w/o sync bits
+ buffer = context->bit_stream_info.sLayerInfo[context->cur_layer].pBsBuf;
+
+#if 0
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "layer: %d/%d nalu:%d/%d nalu_len:%d/%d\n",
+ context->cur_layer, context->bit_stream_info.iLayerNum,
+ context->cur_nalu_index, context->bit_stream_info.sLayerInfo[context->cur_layer].iNalCount,
+ nalu_len, context->last_nalu_data_pos);
+#endif
+
+ switch_assert(nalu_len > 0);
+
+ if (nalu_len <= SLICE_SIZE) {
+ uint8_t nalu_type;
+
+ context->last_nalu_data_pos += 4;
+ nalu_type = *(buffer + context->last_nalu_data_pos) & 0x1f;
+
+ // if (nalu_type == 7) switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Got SPS\n");
+
+ memcpy(data, (buffer + context->last_nalu_data_pos), nalu_len);
+ *len = nalu_len;
+ // *flag |= (nalu_type == 6 || nalu_type == 7 || nalu_type == 8 || (nalu_type == 0xe && context->last_nalu_type == 8)) ? 0 : SFF_MARKER;
+ if ((context->cur_nalu_index == context->bit_stream_info.sLayerInfo[context->cur_layer].iNalCount - 1) &&
+ (context->cur_layer == context->bit_stream_info.iLayerNum - 1)) {
+ *flag |= SFF_MARKER;
+ } else {
+ status = SWITCH_STATUS_MORE_DATA;
+ }
+ context->cur_nalu_index++;
+ context->last_nalu_data_pos += nalu_len;
+ context->last_nalu_type = nalu_type;
+ goto end;
+ } else {
+ int left = nalu_len;
+ uint8_t *p = (uint8_t *)data;
+
+ if (context->nalu_eat) {
+ left = nalu_len + 4 - context->nalu_eat;
+ switch_assert(left > 0);
+ }
+
+ if (left > (SLICE_SIZE - 2)) {
+ uint8_t start_bit;
+
+ if (context->nalu_eat) {
+ start_bit = 0;
+ } else {
+ start_bit = 0x80;
+ context->last_nalu_data_pos += 4;
+ context->last_nalu_type = *(buffer + context->last_nalu_data_pos) & 0x1f;
+ context->last_nri = context->last_nalu_type & 0x60;
+ context->last_nalu_data_pos++;
+ context->nalu_eat = 5;
+ }
+
+ p[0] = context->last_nri | 28; // FU-A
+ p[1] = start_bit | context->last_nalu_type;
+
+ memcpy(p + 2, buffer + context->last_nalu_data_pos, SLICE_SIZE - 2);
+ context->last_nalu_data_pos += (SLICE_SIZE - 2);
+ context->nalu_eat += (SLICE_SIZE - 2);
+ *len = SLICE_SIZE;
+ status = SWITCH_STATUS_MORE_DATA;
+ goto end;
+ } else {
+ p[0] = context->last_nri | 28; // FU-A
+ p[1] = 0x40 | context->last_nalu_type;
+ memcpy(p + 2, buffer + context->last_nalu_data_pos, left);
+ context->last_nalu_data_pos += left;
+ *len = left + 2;
+ *flag |= SFF_MARKER;
+ context->nalu_eat = 0;
+ context->cur_nalu_index++;
+ status = SWITCH_STATUS_MORE_DATA;
+ goto end;
+ }
+ }
+
+end:
+ return status;
+}
+
+static switch_status_t switch_h264_init(switch_codec_t *codec, switch_codec_flag_t flags, const switch_codec_settings_t *codec_settings)
+{
+ h264_codec_context_t *context = NULL;
+ int encoding, decoding;
+ int ret;
+
+ encoding = (flags & SWITCH_CODEC_FLAG_ENCODE);
+ decoding = (flags & SWITCH_CODEC_FLAG_DECODE);
+
+ if (!(encoding || decoding)) {
+ return SWITCH_STATUS_FALSE;
+ }
+
+ if (codec->fmtp_in) {
+ codec->fmtp_out = switch_core_strdup(codec->memory_pool, codec->fmtp_in);
+ }
+
+ context = (h264_codec_context_t*)switch_core_alloc(codec->memory_pool, sizeof(h264_codec_context_t));
+ memset(context, 0, sizeof(*context));
+
+ if (decoding) {
+ WelsCreateDecoder(&context->decoder);
+
+ if (!context->decoder) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "CreateDecoder Error\n");
+ return SWITCH_STATUS_FALSE;
+ }
+
+ context->decoder_params.eOutputColorFormat = videoFormatI420;
+ context->decoder_params.uiTargetDqLayer = (uint8_t) -1;
+ context->decoder_params.eEcActiveIdc = ERROR_CON_SLICE_COPY;
+ context->decoder_params.sVideoProperty.eVideoBsType = VIDEO_BITSTREAM_AVC;
+ context->decoder_params.sVideoProperty.size = sizeof(context->decoder_params.sVideoProperty);
+
+ if (context->decoder->Initialize(&context->decoder_params)) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Decoder Initialize failed\n");
+ goto error;
+ }
+
+ if (set_decoder_options(context->decoder)) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Set Decoder Option Error\n");
+ }
+ }
+
+ if (encoding) {
+ ret = WelsCreateSVCEncoder(&context->encoder);
+ if (ret) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot create encoder, error: %d\n", ret);
+ goto error;
+ }
+
+ FillSpecificParameters(context->encoder_params);
+ }
+
+ //if (encoding | decoding) WelsStderrSetTraceLevel(10);
+
+ switch_buffer_create_dynamic(&(context->nalu_buffer), H264_NALU_BUFFER_SIZE, H264_NALU_BUFFER_SIZE * 8, 0);
+ codec->private_info = context;
+
+ return SWITCH_STATUS_SUCCESS;
+
+error:
+ // TODO, do some proper clean up
+ return SWITCH_STATUS_FALSE;
+}
+
+
+static switch_status_t init_encoder(h264_codec_context_t *context, uint32_t width, uint32_t height)
+{
+ int i;
+
+ context->encoder_params.iPicWidth = width;
+ context->encoder_params.iPicHeight = height;
+ for (int i=0; i<context->encoder_params.iSpatialLayerNum; i++) {
+ context->encoder_params.sSpatialLayers[i].iVideoWidth = width;
+ context->encoder_params.sSpatialLayers[i].iVideoHeight = height;
+ }
+
+ /* just do it, the encoder will Uninitialize first by itself if already initialized */
+ if (cmResultSuccess != context->encoder->InitializeExt(&context->encoder_params)) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Encoder Init Error\n");
+ return SWITCH_STATUS_FALSE;
+ }
+ context->encoder_initialized = SWITCH_TRUE;
+ return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t switch_h264_encode(switch_codec_t *codec,
+ switch_image_t *img,
+ void *encoded_data, uint32_t *encoded_data_len,
+ unsigned int *flag)
+{
+ h264_codec_context_t *context = (h264_codec_context_t *)codec->private_info;
+ int width = 0;
+ int height = 0;
+ long enc_ret;
+ SSourcePicture* pic = NULL;
+ long result;
+
+ if (*flag & SFF_WAIT_KEY_FRAME) {
+ context->encoder->ForceIntraFrame(1);
+ }
+
+ if (img == NULL) {
+ return nalu_slice(context, encoded_data, encoded_data_len, flag);
+ }
+
+ width = img->d_w;
+ height = img->d_h;
+
+ //switch_assert(width > 0 && (width % 2 == 0));
+ //switch_assert(height > 0 && (height % 2 == 0));
+
+ if (!context->encoder_initialized) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "initializing encoder %dx%d\n", width, height);
+ init_encoder(context, width, height);
+ }
+
+ if (width != context->encoder_params.iPicWidth || height != context->encoder_params.iPicHeight ) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "picture size changed from %dx%d to %dx%d, reinitializing encoder",
+ context->encoder_params.iPicWidth, context->encoder_params.iPicHeight, width, height);
+ init_encoder(context, width, height);
+ }
+
+ pic = new SSourcePicture;
+ if (pic == NULL) goto error;
+
+ pic->iColorFormat = videoFormatI420;
+ pic->iPicHeight = height;
+ pic->iPicWidth = width;
+ pic->iStride[0] = img->stride[0];
+ pic->iStride[1] = img->stride[1]; // = img->stride[2];
+
+ pic->pData[0] = img->planes[0];
+ pic->pData[1] = img->planes[1];
+ pic->pData[2] = img->planes[2];
+
+ result = (EVideoFrameType)context->encoder->EncodeFrame(pic, &context->bit_stream_info);
+ if (result != cmResultSuccess ) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "EncodeFrame() failed, result = %ld\n", result);
+ goto error;
+ }
+
+ context->cur_layer = 0;
+ context->cur_nalu_index = 0;
+ context->last_nalu_data_pos = 0;
+
+ if(pic){
+ delete pic;
+ pic = NULL;
+ }
+ return nalu_slice(context, encoded_data, encoded_data_len, flag);
+
+error:
+ if(pic){
+ delete pic;
+ pic = NULL;
+ }
+
+ *encoded_data_len = 0;
+ *flag |= SFF_MARKER;
+ return SWITCH_STATUS_FALSE;
+}
+
+static switch_status_t switch_h264_decode(switch_codec_t *codec,
+ switch_frame_t *frame,
+ switch_image_t **img,
+ unsigned int *flag)
+{
+ h264_codec_context_t *context = (h264_codec_context_t *)codec->private_info;
+ switch_size_t size = 0;
+ uint32_t error_code;
+
+ // switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "len: %d ts: %u mark:%d\n", frame->datalen, ntohl(frame->timestamp), frame->m);
+
+ if (context->last_received_timestamp && context->last_received_timestamp != frame->timestamp &&
+ (!frame->m) && (!context->last_received_complete_picture)) {
+ // possible packet loss
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Packet Loss, skip privousely received packets\n");
+ switch_buffer_zero(context->nalu_buffer);
+ }
+
+ context->last_received_timestamp = frame->timestamp;
+ context->last_received_complete_picture = frame->m ? SWITCH_TRUE : SWITCH_FALSE;
+
+ size = buffer_h264_nalu(context, frame);
+
+ if (frame->m && size) {
+ int got_picture = 0;
+ int decoded_len;
+ int i;
+ const void *nalu = NULL;
+ int width, height;
+ SBufferInfo dest_buffer_info;
+ switch_buffer_peek_zerocopy(context->nalu_buffer, &nalu);
+ uint8_t* pData[3] = { 0 };
+
+ pData[0] = NULL;
+ pData[1] = NULL;
+ pData[2] = NULL;
+ memset(&dest_buffer_info, 0, sizeof(dest_buffer_info));
+
+ error_code = context->decoder->DecodeFrame2((uint8_t *)nalu, size, (uint8_t **)pData, &dest_buffer_info);
+
+ if (error_code == dsErrorFree && dest_buffer_info.iBufferStatus == 1) {
+ width = dest_buffer_info.UsrData.sSystemBuffer.iWidth;
+ height = dest_buffer_info.UsrData.sSystemBuffer.iHeight;
+
+ // switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "got pic: [%dx%d]\n", width, height);
+
+ if (!context->img) {
+ context->img = switch_img_wrap(NULL, SWITCH_IMG_FMT_I420, width, height, 0, pData[0]);
+ assert(context->img);
+ }
+
+ context->img->w = dest_buffer_info.UsrData.sSystemBuffer.iStride[0];
+ context->img->h = dest_buffer_info.UsrData.sSystemBuffer.iStride[1];
+ context->img->d_w = width;
+ context->img->d_h = height;
+ context->img->planes[0] = pData[0];
+ context->img->planes[1] = pData[1];
+ context->img->planes[2] = pData[2];
+ context->img->stride[0] = dest_buffer_info.UsrData.sSystemBuffer.iStride[0];
+ context->img->stride[1] = dest_buffer_info.UsrData.sSystemBuffer.iStride[1];
+ context->img->stride[2] = dest_buffer_info.UsrData.sSystemBuffer.iStride[1];
+
+ *img = context->img;
+ // TODO: keep going and see if more picture available
+ // pDecoder->DecodeFrame (NULL, 0, pData, &sDstBufInfo);
+ } else {
+ if (error_code) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Decode error: 0x%x\n", error_code);
+ context->got_sps = 0;
+ }
+ }
+
+ switch_buffer_zero(context->nalu_buffer);
+ return SWITCH_STATUS_SUCCESS;
+ }
+
+end:
+ return SWITCH_STATUS_SUCCESS;
+}
+
+static switch_status_t switch_h264_destroy(switch_codec_t *codec)
+{
+ h264_codec_context_t *context = (h264_codec_context_t *)codec->private_info;
+
+ if (!context) return SWITCH_STATUS_SUCCESS;
+
+ if (context->nalu_buffer) switch_buffer_destroy(&context->nalu_buffer);
+
+ if (context->encoder) {
+ context->encoder->Uninitialize();
+ WelsDestroySVCEncoder(context->encoder);
+ }
+
+ if (context->decoder) {
+ if (context->img) switch_img_free(context->img);
+ context->decoder->Uninitialize();
+ WelsDestroyDecoder(context->decoder);
+ }
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+
+SWITCH_MODULE_LOAD_FUNCTION(mod_openh264_load)
+{
+ switch_codec_interface_t *codec_interface;
+
+ /* connect my internal structure to the blank pointer passed to me */
+ *module_interface = switch_loadable_module_create_module_interface(pool, modname);
+
+ SWITCH_ADD_CODEC(codec_interface, "H264 Video (with Cisco OpenH264)");
+ switch_core_codec_add_video_implementation(pool, codec_interface, 99, "H264", NULL,
+ switch_h264_init, switch_h264_encode, switch_h264_decode, switch_h264_destroy);
+
+ /* 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:
+ */
--- /dev/null
+/*
+ * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ * Copyright (C) 2005-2012, 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
+ * Seven Du <dujinfang@gmail.com>
+ * Portions created by the Initial Developer are Copyright (C)
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Anthony Minessale II <anthm@freeswitch.org>
+ * Seven Du <dujinfang@gmail.com>
+ * Sam Russell <sam.h.russell@gmail.com>
+ *
+ * mod_vpx.c -- VP8/9 Video Codec, with transcoding
+ *
+ */
+
+#include <switch.h>
+#include <vpx/vpx_encoder.h>
+#include <vpx/vpx_decoder.h>
+#include <vpx/vp8cx.h>
+#include <vpx/vp8dx.h>
+#include <vpx/vp8.h>
+
+#define FPS 15
+#define SLICE_SIZE 1200
+
+SWITCH_MODULE_LOAD_FUNCTION(mod_vpx_load);
+SWITCH_MODULE_DEFINITION(mod_vpx, mod_vpx_load, NULL, NULL);
+
+struct vpx_context {
+ switch_codec_t *codec;
+ unsigned int flags;
+
+ vpx_codec_enc_cfg_t config;
+
+ vpx_codec_ctx_t encoder;
+ vpx_image_t *pic;
+ switch_bool_t force_key_frame;
+ int width;
+ int height;
+ int bitrate;
+ int fps;
+ int format;
+ int intra_period;
+ int pts;
+ int num;
+ int partition_index;
+ const vpx_codec_cx_pkt_t *pkt;
+ int pkt_pos;
+ vpx_codec_iter_t iter;
+ switch_time_t last_ts;
+
+ vpx_codec_ctx_t decoder;
+ switch_buffer_t *vpx_packet_buffer;
+ int got_key_frame;
+ switch_size_t last_received_timestamp;
+ switch_bool_t last_received_complete_picture;
+ int need_key_frame;
+};
+typedef struct vpx_context vpx_context_t;
+
+static switch_status_t switch_vpx_init(switch_codec_t *codec, switch_codec_flag_t flags, const switch_codec_settings_t *codec_settings)
+{
+ vpx_context_t *context = NULL;
+ int encoding, decoding;
+ vpx_codec_ctx_t *encoder = NULL;
+ vpx_codec_ctx_t *decoder = NULL;
+ vpx_codec_enc_cfg_t *config;
+ const vpx_codec_iface_t* encoder_interface = vpx_codec_vp8_cx();
+ const vpx_codec_iface_t* decoder_interface = vpx_codec_vp8_dx();
+
+
+ encoding = (flags & SWITCH_CODEC_FLAG_ENCODE);
+ decoding = (flags & SWITCH_CODEC_FLAG_DECODE);
+
+ if (!(encoding || decoding) || ((context = switch_core_alloc(codec->memory_pool, sizeof(*context))) == 0)) {
+ return SWITCH_STATUS_FALSE;
+ }
+ memset(context, 0, sizeof(*context));
+ context->flags = flags;
+ codec->private_info = context;
+
+ if (codec->fmtp_in) {
+ codec->fmtp_out = switch_core_strdup(codec->memory_pool, codec->fmtp_in);
+ }
+
+ config = &context->config;
+
+ if (vpx_codec_enc_config_default(encoder_interface, config, 0) != VPX_CODEC_OK) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Encoder config Error\n");
+ return SWITCH_STATUS_FALSE;
+ }
+
+ context->width = 352;
+ context->height = 288;
+ context->bitrate = 38400;
+
+ // settings
+ config->g_profile = 1;
+ config->g_w = context->width;
+ config->g_h = context->height;
+ config->rc_target_bitrate = context->bitrate;
+ config->g_timebase.num = 1;
+ config->g_timebase.den = 1000;
+ config->g_error_resilient = VPX_ERROR_RESILIENT_PARTITIONS;
+ config->g_lag_in_frames = 0; // 0- no frame lagging
+ config->g_threads = 1;
+ // rate control settings
+ config->rc_dropframe_thresh = 0;
+ config->rc_end_usage = VPX_CBR;
+ config->g_pass = VPX_RC_ONE_PASS;
+ // config->kf_mode = VPX_KF_DISABLED;
+ config->kf_mode = VPX_KF_AUTO;
+ // config->kf_min_dist = FPS;// Intra Period 3 seconds;
+ // config->kf_max_dist = FPS * 3;
+ config->rc_resize_allowed = 0;
+ config->rc_min_quantizer = 2;
+ config->rc_max_quantizer = 56;
+ //Rate control adaptation undershoot control.
+ // This value, expressed as a percentage of the target bitrate,
+ // controls the maximum allowed adaptation speed of the codec.
+ // This factor controls the maximum amount of bits that can be
+ // subtracted from the target bitrate in order to compensate for
+ // prior overshoot.
+ // Valid values in the range 0-1000.
+ config->rc_undershoot_pct = 100;
+ //Rate control adaptation overshoot control.
+ // This value, expressed as a percentage of the target bitrate,
+ // controls the maximum allowed adaptation speed of the codec.
+ // This factor controls the maximum amount of bits that can be
+ // added to the target bitrate in order to compensate for prior
+ // undershoot.
+ // Valid values in the range 0-1000.
+ config->rc_overshoot_pct = 15;
+ //Decoder Buffer Size.
+ // This value indicates the amount of data that may be buffered
+ // by the decoding application. Note that this value is expressed
+ // in units of time (milliseconds). For example, a value of 5000
+ // indicates that the client will buffer (at least) 5000ms worth
+ // of encoded data. Use the target bitrate (rc_target_bitrate) to
+ // convert to bits/bytes, if necessary.
+ config->rc_buf_sz = 1000;
+ //Decoder Buffer Initial Size.
+ // This value indicates the amount of data that will be buffered
+ // by the decoding application prior to beginning playback.
+ // This value is expressed in units of time (milliseconds).
+ // Use the target bitrate (rc_target_bitrate) to convert to
+ // bits/bytes, if necessary.
+ config->rc_buf_initial_sz = 500;
+ //Decoder Buffer Optimal Size.
+ // This value indicates the amount of data that the encoder should
+ // try to maintain in the decoder's buffer. This value is expressed
+ // in units of time (milliseconds).
+ // Use the target bitrate (rc_target_bitrate) to convert to
+ // bits/bytes, if necessary.
+ config->rc_buf_optimal_sz = 600;
+
+ if (encoding) {
+ if (vpx_codec_enc_init(&context->encoder, encoder_interface, config, 0 & VPX_CODEC_USE_OUTPUT_PARTITION) != VPX_CODEC_OK) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Codec init error: [%d:%s]\n", encoder->err, encoder->err_detail);
+ return SWITCH_STATUS_FALSE;
+ }
+
+ // The static threshold imposes a change threshold on blocks below which they will be skipped by the encoder.
+ vpx_codec_control(encoder, VP8E_SET_STATIC_THRESHOLD, 100);
+ //Set cpu usage, a bit lower than normal (-6) but higher than android (-12)
+ vpx_codec_control(encoder, VP8E_SET_CPUUSED, -8);
+ // Only one partition
+ // vpx_codec_control(encoder, VP8E_SET_TOKEN_PARTITIONS, VP8_ONE_TOKENPARTITION);
+ // Enable noise reduction
+ vpx_codec_control(encoder, VP8E_SET_NOISE_SENSITIVITY, 0);
+ //Set max data rate for Intra frames.
+ // This value controls additional clamping on the maximum size of a keyframe.
+ // It is expressed as a percentage of the average per-frame bitrate, with the
+ // special (and default) value 0 meaning unlimited, or no additional clamping
+ // beyond the codec's built-in algorithm.
+ // For example, to allocate no more than 4.5 frames worth of bitrate to a keyframe, set this to 450.
+ vpx_codec_control(encoder, VP8E_SET_MAX_INTRA_BITRATE_PCT, 0);
+ }
+
+ if (decoding) {
+ vp8_postproc_cfg_t ppcfg;
+
+ if (vpx_codec_dec_init(&context->decoder, decoder_interface, NULL, VPX_CODEC_USE_POSTPROC) != VPX_CODEC_OK) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Codec init error: [%d:%s]\n", encoder->err, encoder->err_detail);
+ return SWITCH_STATUS_FALSE;
+ }
+
+ // the types of post processing to be done, should be combination of "vp8_postproc_level"
+ ppcfg.post_proc_flag = VP8_DEMACROBLOCK | VP8_DEBLOCK;
+ // the strength of deblocking, valid range [0, 16]
+ ppcfg.deblocking_level = 3;
+ // Set deblocking settings
+ vpx_codec_control(decoder, VP8_SET_POSTPROC, &ppcfg);
+
+ switch_buffer_create_dynamic(&context->vpx_packet_buffer, 512, 512, 1024000);
+ }
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+/* http://tools.ietf.org/html/draft-ietf-payload-vp8-10
+
+ The first octets after the RTP header are the VP8 payload descriptor, with the following structure.
+
+ 0 1 2 3 4 5 6 7
+ +-+-+-+-+-+-+-+-+
+ |X|R|N|S|R| PID | (REQUIRED)
+ +-+-+-+-+-+-+-+-+
+ X: |I|L|T|K| RSV | (OPTIONAL)
+ +-+-+-+-+-+-+-+-+
+ I: |M| PictureID | (OPTIONAL)
+ +-+-+-+-+-+-+-+-+
+ L: | TL0PICIDX | (OPTIONAL)
+ +-+-+-+-+-+-+-+-+
+ T/K:|TID|Y| KEYIDX | (OPTIONAL)
+ +-+-+-+-+-+-+-+-+
+
+
+ VP8 Payload Header
+
+ 0 1 2 3 4 5 6 7
+ +-+-+-+-+-+-+-+-+
+ |Size0|H| VER |P|
+ +-+-+-+-+-+-+-+-+
+ | Size1 |
+ +-+-+-+-+-+-+-+-+
+ | Size2 |
+ +-+-+-+-+-+-+-+-+
+ | Bytes 4..N of |
+ | VP8 payload |
+ : :
+ +-+-+-+-+-+-+-+-+
+ | OPTIONAL RTP |
+ | padding |
+ : :
+ +-+-+-+-+-+-+-+-+
+*/
+
+static switch_status_t consume_partition(vpx_context_t *context, void *data, uint32_t *len, uint32_t *flag)
+{
+ if (!context->pkt) context->pkt = vpx_codec_get_cx_data(&context->encoder, &context->iter);
+
+ *flag &= ~SFF_MARKER;
+
+ if (context->pkt) {
+ // if (context->pkt->kind == VPX_CODEC_CX_FRAME_PKT && (context->pkt->data.frame.flags & VPX_FRAME_IS_KEY) && context->pkt_pos == 0) {
+ // switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "============================Got a VP8 Key Frame size:[%d]===================================\n", (int)context->pkt->data.frame.sz);
+ // }
+
+ // switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "size:%d flag: %x part_id: %d pts: %lld duration:%ld\n",
+ // (int)context->pkt->data.frame.sz, context->pkt->data.frame.flags, context->pkt->data.frame.partition_id, context->pkt->data.frame.pts, context->pkt->data.frame.duration);
+ }
+
+ if (!context->pkt || context->pkt_pos >= context->pkt->data.frame.sz - 1 || context->pkt->kind != VPX_CODEC_CX_FRAME_PKT) {
+ *len = 0;
+ *flag |= SFF_MARKER;
+ context->pkt_pos = 0;
+ context->pkt = NULL;
+ return SWITCH_STATUS_SUCCESS;
+ }
+
+ if (context->pkt->data.frame.sz < SLICE_SIZE) {
+ uint8_t hdr = 0x10;
+
+ memcpy(data, &hdr, 1);
+ memcpy((uint8_t *)data + 1, context->pkt->data.frame.buf, context->pkt->data.frame.sz);
+ *len = context->pkt->data.frame.sz + 1;
+ *flag |= SFF_MARKER;
+ context->pkt = NULL;
+ context->pkt_pos = 0;
+ return SWITCH_STATUS_SUCCESS;
+ } else {
+ int left = context->pkt->data.frame.sz - context->pkt_pos;
+ uint8_t *p = data;
+
+ if (left < SLICE_SIZE) {
+ p[0] = 0;
+ memcpy(p+1, (uint8_t *)context->pkt->data.frame.buf + context->pkt_pos, left);
+ context->pkt_pos = 0;
+ context->pkt = NULL;
+ *len = left + 1;
+ *flag |= SFF_MARKER;
+ return SWITCH_STATUS_SUCCESS;
+ } else {
+ uint8_t hdr = context->pkt_pos == 0 ? 0x10 : 0;
+
+ p[0] = hdr;
+ memcpy(p+1, (uint8_t *)context->pkt->data.frame.buf + context->pkt_pos, SLICE_SIZE - 1);
+ context->pkt_pos += (SLICE_SIZE - 1);
+ *len = SLICE_SIZE;
+ return SWITCH_STATUS_MORE_DATA;
+ }
+ }
+}
+
+static switch_status_t switch_vpx_encode(switch_codec_t *codec, switch_image_t *img,
+ void *encoded_data, uint32_t *encoded_data_len,
+ unsigned int *flag)
+{
+ vpx_context_t *context = (vpx_context_t *)codec->private_info;
+ uint32_t duration = 90000 / FPS;
+ int width = 0;
+ int height = 0;
+ vpx_enc_frame_flags_t vpx_flags = 0;
+
+ if (*flag & SFF_WAIT_KEY_FRAME) {
+ context->need_key_frame = 1;
+ }
+
+ if (img == NULL) {
+ return consume_partition(context, encoded_data, encoded_data_len, flag);
+ }
+
+ width = img->d_w;
+ height = img->d_h;
+
+ //switch_assert(width > 0 && (width % 4 == 0));
+ //switch_assert(height > 0 && (height % 4 == 0));
+
+ if (context->config.g_w != width || context->config.g_h != height) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "VPX reset encoder picture from %dx%d to %dx%d\n", context->config.g_w, context->config.g_h, width, height);
+ context->config.g_w = width;
+ context->config.g_h = height;
+ if (vpx_codec_enc_config_set(&context->encoder, &context->config) != VPX_CODEC_OK) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "VPX reset config error!");
+ }
+ }
+
+ if (context->last_ts == 0) context->last_ts = switch_micro_time_now();
+
+ if ((switch_micro_time_now() - context->last_ts) > 2 * 1000000) {
+ // the config params doesn't seems work for generate regular key frames,
+ // so we do some trick here to force a key frame every 2 sec
+ // vpx_flags = VPX_EFLAG_FORCE_KF;
+ context->last_ts = switch_micro_time_now();
+ }
+
+ if (context->need_key_frame > 0) {
+ // force generate a key frame
+ vpx_flags |= VPX_EFLAG_FORCE_KF;
+ context->last_ts = switch_micro_time_now();
+ context->need_key_frame--;
+ }
+
+ if (vpx_codec_encode(&context->encoder, (vpx_image_t *)img, context->pts, duration, vpx_flags, VPX_DL_REALTIME) != VPX_CODEC_OK) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "VP8 encode error %d:%s\n",
+ context->encoder.err, context->encoder.err_detail);
+ return SWITCH_STATUS_FALSE;
+ }
+
+ context->pts += duration;
+ context->iter = NULL;
+
+ return consume_partition(context, encoded_data, encoded_data_len, flag);
+}
+
+static void buffer_vpx_packets(vpx_context_t *context, switch_frame_t *frame)
+{
+ uint8_t *data = frame->data;
+ uint8_t S;
+ uint8_t DES;
+ uint8_t PID;
+ int len;
+
+ if (!frame) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "no frame in codec!!\n");
+ return;
+ }
+
+ DES = *data;
+ data++;
+ S = DES & 0x10;
+ PID = DES & 0x07;
+
+ if (DES & 0x80) { // X
+ uint8_t X = *data;
+ data++;
+ if (X & 0x80) { // I
+ uint8_t M = (*data) & 0x80;
+ data++;
+ if (M) data++;
+ }
+ if (X & 0x40) data++; // L
+ if (X & 0x30) data++; // T/K
+ }
+
+ len = frame->datalen - (data - (uint8_t *)frame->data);
+ if (len <= 0) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid packet %d\n", len);
+ switch_buffer_zero(context->vpx_packet_buffer);
+ return;
+ }
+
+ if (S && (PID == 0)) {
+ uint8_t keyframe;
+
+ keyframe = ((*data) & 0x01) ? 0 : 1;
+
+ // switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "[%d] PID: %d K:%d P:%d Inv:%d len: %d size:%d\n", frame->datalen, PID, keyframe, profile, invisible, len, size);
+
+ if (keyframe) {
+ if (!context->got_key_frame) context->got_key_frame = 1;
+ }
+ }
+
+ if (!context->got_key_frame) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Waiting for key frame\n");
+ switch_set_flag(frame, SFF_WAIT_KEY_FRAME);
+ return;
+ }
+
+ switch_buffer_write(context->vpx_packet_buffer, data, len);
+}
+
+static switch_status_t switch_vpx_decode(switch_codec_t *codec, switch_frame_t *frame, switch_image_t **img, unsigned int *flag)
+{
+ vpx_context_t *context = (vpx_context_t *)codec->private_info;
+ vpx_codec_ctx_t *decoder = &context->decoder;
+ switch_size_t len;
+
+ if (!decoder) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "VPX decoder is not initialized!\n");
+ return SWITCH_STATUS_FALSE;
+ }
+
+ // switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "len: %d ts: %" SWITCH_SIZE_T_FMT " mark:%d\n", frame->datalen, frame->timestamp, frame->m);
+
+ if (context->last_received_timestamp && context->last_received_timestamp != frame->timestamp &&
+ (!frame->m) && (!context->last_received_complete_picture)) {
+ // possible packet loss
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Packet Loss, skip previouse received frame (to avoid crash?)\n");
+ switch_buffer_zero(context->vpx_packet_buffer);
+ }
+
+ context->last_received_timestamp = frame->timestamp;
+ context->last_received_complete_picture = frame->m ? SWITCH_TRUE : SWITCH_FALSE;
+
+ buffer_vpx_packets(context, frame);
+
+ len = switch_buffer_inuse(context->vpx_packet_buffer);
+
+ if (frame->m && len) {
+ uint8_t *data;
+ vpx_codec_iter_t iter = NULL;
+ int corrupted = 0;
+ int err;
+ // int keyframe = 0;
+
+ switch_buffer_peek_zerocopy(context->vpx_packet_buffer, (void *)&data);
+ // keyframe = (*data & 0x01) ? 0 : 1;
+
+ // switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "buffered: %" SWITCH_SIZE_T_FMT ", key: %d\n", len, keyframe);
+
+ err = vpx_codec_decode(decoder, data, (unsigned int)len, NULL, 0);
+
+ if (err != VPX_CODEC_OK) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error decoding %" SWITCH_SIZE_T_FMT " bytes, [%d:%d:%s]\n", len, err, decoder->err, decoder->err_detail);
+ switch_set_flag(frame, SFF_WAIT_KEY_FRAME);
+ context->got_key_frame = 0;
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "require key frame %d\n", context->got_key_frame);
+ goto error;
+ }
+
+ if (vpx_codec_control(decoder, VP8D_GET_FRAME_CORRUPTED, &corrupted) != VPX_CODEC_OK) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "VPX control error!\n");
+ goto error;
+ }
+
+ *img = (switch_image_t *)vpx_codec_get_frame(decoder, &iter);
+
+ if (!(*img) || corrupted) {
+ switch_buffer_zero(context->vpx_packet_buffer);
+ goto ok;
+ }
+
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "%dx%d %dx%d\n", (*img)->w,(*img)->h, (*img)->d_w, (*img)->d_h);
+
+ switch_buffer_zero(context->vpx_packet_buffer);
+ }
+
+ok:
+ return SWITCH_STATUS_SUCCESS;
+
+error:
+ switch_buffer_zero(context->vpx_packet_buffer);
+
+ return SWITCH_STATUS_FALSE;
+}
+
+static switch_status_t switch_vpx_destroy(switch_codec_t *codec)
+{
+ vpx_context_t *context = (vpx_context_t *)codec->private_info;
+
+ if (context) {
+ if ((codec->flags & SWITCH_CODEC_FLAG_ENCODE)) {
+ vpx_codec_destroy(&context->encoder); // TODO fix crash
+ }
+
+ if ((codec->flags & SWITCH_CODEC_FLAG_DECODE)) {
+ vpx_codec_destroy(&context->decoder);
+ }
+
+ if (context->pic) {
+ vpx_img_free(context->pic);
+ context->pic = NULL;
+ }
+ if (context->vpx_packet_buffer) {
+ switch_buffer_destroy(&context->vpx_packet_buffer);
+ context->vpx_packet_buffer = NULL;
+ }
+ }
+ return SWITCH_STATUS_SUCCESS;
+}
+
+SWITCH_MODULE_LOAD_FUNCTION(mod_vpx_load)
+{
+ switch_codec_interface_t *codec_interface;
+
+ /* connect my internal structure to the blank pointer passed to me */
+ *module_interface = switch_loadable_module_create_module_interface(pool, modname);
+ SWITCH_ADD_CODEC(codec_interface, "VP8 Video");
+ switch_core_codec_add_video_implementation(pool, codec_interface, 99, "VP8", NULL,
+ switch_vpx_init, switch_vpx_encode, switch_vpx_decode, switch_vpx_destroy);
+
+ /* 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
