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57 lines
1.8 KiB
57 lines
1.8 KiB
/* |
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* g722 raw demuxer |
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* Copyright (c) 2010 Martin Storsjo |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/avassert.h" |
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#include "avformat.h" |
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#include "internal.h" |
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#include "rawdec.h" |
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static int g722_read_header(AVFormatContext *s) |
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{ |
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AVStream *st; |
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st = avformat_new_stream(s, NULL); |
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if (!st) |
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return AVERROR(ENOMEM); |
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st->codec->codec_type = AVMEDIA_TYPE_AUDIO; |
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st->codec->codec_id = AV_CODEC_ID_ADPCM_G722; |
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st->codec->sample_rate = 16000; |
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st->codec->channels = 1; |
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st->codec->bits_per_coded_sample = |
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av_get_bits_per_sample(st->codec->codec_id); |
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av_assert0(st->codec->bits_per_coded_sample > 0); |
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avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate); |
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return 0; |
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} |
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AVInputFormat ff_g722_demuxer = { |
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.name = "g722", |
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.long_name = NULL_IF_CONFIG_SMALL("raw G.722"), |
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.read_header = g722_read_header, |
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.read_packet = ff_raw_read_partial_packet, |
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.flags = AVFMT_GENERIC_INDEX, |
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.extensions = "g722,722", |
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.raw_codec_id = AV_CODEC_ID_ADPCM_G722, |
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};
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