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/*
* 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,
};
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