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#include "avformat.h" |
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#include "mux.h" |
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static int daud_init(struct AVFormatContext *s) |
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{ |
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AVCodecParameters *par = s->streams[0]->codecpar; |
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if (par->ch_layout.nb_channels != 6 || par->sample_rate != 96000) |
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return AVERROR(EINVAL); |
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return 0; |
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} |
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static int daud_write_packet(struct AVFormatContext *s, AVPacket *pkt) |
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{ |
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if (pkt->size > 65535) { |
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av_log(s, AV_LOG_ERROR, |
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"Packet size too large for s302m. (%d > 65535)\n", pkt->size); |
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return AVERROR_INVALIDDATA; |
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} |
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avio_wb16(s->pb, pkt->size); |
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avio_wb16(s->pb, 0x8010); |
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avio_write(s->pb, pkt->data, pkt->size); |
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return 0; |
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} |
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const FFOutputFormat ff_daud_muxer = { |
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.p.name = "daud", |
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.p.long_name = NULL_IF_CONFIG_SMALL("D-Cinema audio"), |
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.p.extensions = "302", |
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.p.audio_codec = AV_CODEC_ID_PCM_S24DAUD, |
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.p.video_codec = AV_CODEC_ID_NONE, |
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.p.flags = AVFMT_NOTIMESTAMPS, |
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.init = daud_init, |
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.write_packet = daud_write_packet, |
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}; |
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