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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->codecpar->codec_type = AVMEDIA_TYPE_AUDIO; |
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st->codecpar->codec_id = AV_CODEC_ID_ADPCM_G722; |
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st->codecpar->sample_rate = 16000; |
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st->codecpar->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO; |
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st->codecpar->bits_per_coded_sample = |
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av_get_bits_per_sample(st->codecpar->codec_id); |
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av_assert0(st->codecpar->bits_per_coded_sample > 0); |
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avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate); |
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return 0; |
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} |
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const 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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.priv_data_size = sizeof(FFRawDemuxerContext), |
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.priv_class = &ff_raw_demuxer_class, |
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}; |
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