mirror of https://git.ffmpeg.org/ffmpeg.git
103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2011 Miroslav Slugeň <Thunder.m@seznam.cz>
|
||
|
|
*
|
||
|
|
* This file is part of Libav.
|
||
|
|
*
|
||
|
|
* Libav is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU Lesser General Public
|
||
|
|
* License as published by the Free Software Foundation; either
|
||
|
|
* version 2.1 of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* Libav is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
* Lesser General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
|
* License along with Libav; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "avformat.h"
|
||
|
|
#include "rtpdec_formats.h"
|
||
|
|
|
||
|
|
static int g726_16_init(AVFormatContext *s, int st_index, PayloadContext *data)
|
||
|
|
{
|
||
|
|
AVStream *stream = s->streams[st_index];
|
||
|
|
AVCodecContext *codec = stream->codec;
|
||
|
|
|
||
|
|
codec->bit_rate = 16000;
|
||
|
|
if (codec->sample_rate)
|
||
|
|
codec->bits_per_coded_sample =
|
||
|
|
av_clip((codec->bit_rate + codec->sample_rate/2) / codec->sample_rate, 2, 5);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int g726_24_init(AVFormatContext *s, int st_index, PayloadContext *data)
|
||
|
|
{
|
||
|
|
AVStream *stream = s->streams[st_index];
|
||
|
|
AVCodecContext *codec = stream->codec;
|
||
|
|
|
||
|
|
codec->bit_rate = 24000;
|
||
|
|
if (codec->sample_rate)
|
||
|
|
codec->bits_per_coded_sample =
|
||
|
|
av_clip((codec->bit_rate + codec->sample_rate/2) / codec->sample_rate, 2, 5);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int g726_32_init(AVFormatContext *s, int st_index, PayloadContext *data)
|
||
|
|
{
|
||
|
|
AVStream *stream = s->streams[st_index];
|
||
|
|
AVCodecContext *codec = stream->codec;
|
||
|
|
|
||
|
|
codec->bit_rate = 32000;
|
||
|
|
if (codec->sample_rate)
|
||
|
|
codec->bits_per_coded_sample =
|
||
|
|
av_clip((codec->bit_rate + codec->sample_rate/2) / codec->sample_rate, 2, 5);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int g726_40_init(AVFormatContext *s, int st_index, PayloadContext *data)
|
||
|
|
{
|
||
|
|
AVStream *stream = s->streams[st_index];
|
||
|
|
AVCodecContext *codec = stream->codec;
|
||
|
|
|
||
|
|
codec->bit_rate = 40000;
|
||
|
|
if (codec->sample_rate)
|
||
|
|
codec->bits_per_coded_sample =
|
||
|
|
av_clip((codec->bit_rate + codec->sample_rate/2) / codec->sample_rate, 2, 5);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
RTPDynamicProtocolHandler ff_g726_16_dynamic_handler = {
|
||
|
|
.enc_name = "G726-16",
|
||
|
|
.codec_type = AVMEDIA_TYPE_AUDIO,
|
||
|
|
.codec_id = CODEC_ID_ADPCM_G726,
|
||
|
|
.init = g726_16_init,
|
||
|
|
};
|
||
|
|
|
||
|
|
RTPDynamicProtocolHandler ff_g726_24_dynamic_handler = {
|
||
|
|
.enc_name = "G726-24",
|
||
|
|
.codec_type = AVMEDIA_TYPE_AUDIO,
|
||
|
|
.codec_id = CODEC_ID_ADPCM_G726,
|
||
|
|
.init = g726_24_init,
|
||
|
|
};
|
||
|
|
|
||
|
|
RTPDynamicProtocolHandler ff_g726_32_dynamic_handler = {
|
||
|
|
.enc_name = "G726-32",
|
||
|
|
.codec_type = AVMEDIA_TYPE_AUDIO,
|
||
|
|
.codec_id = CODEC_ID_ADPCM_G726,
|
||
|
|
.init = g726_32_init,
|
||
|
|
};
|
||
|
|
|
||
|
|
RTPDynamicProtocolHandler ff_g726_40_dynamic_handler = {
|
||
|
|
.enc_name = "G726-40",
|
||
|
|
.codec_type = AVMEDIA_TYPE_AUDIO,
|
||
|
|
.codec_id = CODEC_ID_ADPCM_G726,
|
||
|
|
.init = g726_40_init,
|
||
|
|
};
|