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g722.c
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1 /*
2  * g722 raw demuxer
3  * Copyright (c) 2010 Martin Storsjo
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "libavutil/avassert.h"
23 #include "avformat.h"
24 #include "internal.h"
25 #include "rawdec.h"
26 
28 {
29  AVStream *st;
30 
31  st = avformat_new_stream(s, NULL);
32  if (!st)
33  return AVERROR(ENOMEM);
34 
37  st->codec->sample_rate = 16000;
38  st->codec->channels = 1;
39 
42 
44 
45  avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
46  return 0;
47 }
48 
50  .name = "g722",
51  .long_name = NULL_IF_CONFIG_SMALL("raw G.722"),
52  .read_header = g722_read_header,
53  .read_packet = ff_raw_read_partial_packet,
54  .flags = AVFMT_GENERIC_INDEX,
55  .extensions = "g722,722",
56  .raw_codec_id = AV_CODEC_ID_ADPCM_G722,
57 };