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FFmpeg/libavformat/g722.c
Michael Niedermayer 507f2940cc Merge commit '1b891d17c531e8a63c2974aab4bf997ce70746f3'
* commit '1b891d17c531e8a63c2974aab4bf997ce70746f3':
  avconv: fix bitrate report when writing to /dev/null
  avfilter: fix graphparser memleaks on error paths
  rawdec: remove ff_raw_read_header
  pcmdec: remove dependency from rawdec
  g722: refactor out of rawdec.c
  rawvideo: use a specific read_header

Conflicts:
	ffmpeg.c
	libavformat/Makefile
	libavformat/rawdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-26 14:24:57 +02:00

58 lines
1.8 KiB
C

/*
* g722 raw demuxer
* Copyright (c) 2010 Martin Storsjo
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/avassert.h"
#include "avformat.h"
#include "internal.h"
#include "rawdec.h"
static int g722_read_header(AVFormatContext *s)
{
AVStream *st;
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = AV_CODEC_ID_ADPCM_G722;
st->codec->sample_rate = 16000;
st->codec->channels = 1;
st->codec->bits_per_coded_sample =
av_get_bits_per_sample(st->codec->codec_id);
av_assert0(st->codec->bits_per_coded_sample > 0);
avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
return 0;
}
AVInputFormat ff_g722_demuxer = {
.name = "g722",
.long_name = NULL_IF_CONFIG_SMALL("raw G.722"),
.read_header = g722_read_header,
.read_packet = ff_raw_read_partial_packet,
.flags = AVFMT_GENERIC_INDEX,
.extensions = "g722,722",
.raw_codec_id = AV_CODEC_ID_ADPCM_G722,
};