| 1 | mpegts.c
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| 2 |
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| 3 |
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| 4 | static int parse_MP4SLDescrTag(MP4DescrParseContext *d, int64_t off, int len)
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| 5 | {
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| 6 | Mp4Descr *descr = d->active_descr;
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| 7 | int predefined;
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| 8 | if (!descr)
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| 9 | return -1;
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| 10 |
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| 11 | predefined = avio_r8(&d->pb);
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| 12 | if (!predefined) {
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| 13 | int lengths;
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| 14 | int flags = avio_r8(&d->pb);
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| 15 | descr->sl.use_au_start = !!(flags & 0x80);
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| 16 | descr->sl.use_au_end = !!(flags & 0x40);
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| 17 | descr->sl.use_rand_acc_pt = !!(flags & 0x20);
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| 18 | descr->sl.use_padding = !!(flags & 0x08);
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| 19 | descr->sl.use_timestamps = !!(flags & 0x04);
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| 20 | descr->sl.use_idle = !!(flags & 0x02);
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| 21 | descr->sl.timestamp_res = avio_rb32(&d->pb);
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| 22 | avio_rb32(&d->pb);
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| 23 | descr->sl.timestamp_len = avio_r8(&d->pb);
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| 24 | descr->sl.ocr_len = avio_r8(&d->pb);
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| 25 | descr->sl.au_len = avio_r8(&d->pb);
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| 26 | descr->sl.inst_bitrate_len = avio_r8(&d->pb);
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| 27 | lengths = avio_rb16(&d->pb);
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| 28 | descr->sl.degr_prior_len = lengths >> 12;
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| 29 | descr->sl.au_seq_num_len = (lengths >> 7) & 0x1f;
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| 30 | descr->sl.packet_seq_num_len = (lengths >> 2) & 0x1f;
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| 31 | } else {
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| 32 | av_log_missing_feature(d->s, "Predefined SLConfigDescriptor\n", 0);
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| 33 | }
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| 34 | return 0;
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| 35 | }
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