3 * Copyright (c) 2010 Martin Storsjo
5 * This file is part of FFmpeg.
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.
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.
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
22 #include "libavutil/avassert.h"
27 static int g722_read_header(AVFormatContext
*s
)
31 st
= avformat_new_stream(s
, NULL
);
33 return AVERROR(ENOMEM
);
35 st
->codec
->codec_type
= AVMEDIA_TYPE_AUDIO
;
36 st
->codec
->codec_id
= AV_CODEC_ID_ADPCM_G722
;
37 st
->codec
->sample_rate
= 16000;
38 st
->codec
->channels
= 1;
40 st
->codec
->bits_per_coded_sample
=
41 av_get_bits_per_sample(st
->codec
->codec_id
);
43 av_assert0(st
->codec
->bits_per_coded_sample
> 0);
45 avpriv_set_pts_info(st
, 64, 1, st
->codec
->sample_rate
);
49 AVInputFormat ff_g722_demuxer
= {
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
,