static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track, AVStream *st) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "trak"); mov_write_tkhd_tag(pb, mov, track, st); if (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS || (track->entry && track->cluster[0].dts) || is_clcp_track(track)) { if (mov->use_editlist) mov_write_edts_tag(pb, mov, track); // PSP Movies require edts box else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track)) av_log(mov->fc, AV_LOG_WARNING, "Not writing any edit list even though one would have been required\n"); } if (track->tref_tag) mov_write_tref_tag(pb, track); mov_write_mdia_tag(pb, mov, track); if (track->mode == MODE_PSP) mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box if (track->tag == MKTAG('r','t','p',' ')) mov_write_udta_sdp(pb, track); if (track->mode == MODE_MOV) { if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) { double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio); if ((0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)) { mov_write_tapt_tag(pb, track); } } if (is_clcp_track(track)) { mov_write_tapt_tag(pb, track); } } mov_write_track_udta_tag(pb, mov, st); return update_size(pb, pos); }