static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "stbl"); mov_write_stsd_tag(pb, track); mov_write_stts_tag(pb, track); if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO || track->enc->codec_tag == MKTAG('r','t','p',' ')) && track->has_keyframes && track->has_keyframes < track->entry) mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE); if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS) mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE); if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->flags & MOV_TRACK_CTTS && track->entry) mov_write_ctts_tag(pb, track); mov_write_stsc_tag(pb, track); mov_write_stsz_tag(pb, track); mov_write_stco_tag(pb, track); return update_size(pb, pos); }