diff options
| author | John Stebbins <jstebbins@jetheaddev.com> | 2017-11-19 12:46:30 -0800 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-12-02 19:14:34 +0100 |
| commit | 00d454ed2ca3f8b4d454a837e95931afe604c53f (patch) | |
| tree | 3582aa4f8357569685c5ae0443f30f6481daf112 /libavformat/movenc.c | |
| parent | 09494d098405738a5972e0052110af65b3ff7e72 (diff) | |
lavf/movenc: add sdtp (sample dependency) box
The sdtp is required by the AppleTV 4K in order to play 2160p60 video.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat/movenc.c')
| -rw-r--r-- | libavformat/movenc.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/libavformat/movenc.c b/libavformat/movenc.c index 0d924ad758..901577401e 100644 --- a/libavformat/movenc.c +++ b/libavformat/movenc.c @@ -252,6 +252,30 @@ static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag) return update_size(pb, pos); } +/* Sample dependency atom */ +static int mov_write_sdtp_tag(AVIOContext *pb, MOVTrack *track) +{ + int i; + uint8_t leading, dependent, reference, redundancy; + int64_t pos = avio_tell(pb); + avio_wb32(pb, 0); // size + ffio_wfourcc(pb, "sdtp"); + avio_wb32(pb, 0); // version & flags + for (i = 0; i < track->entry; i++) { + dependent = MOV_SAMPLE_DEPENDENCY_YES; + leading = reference = redundancy = MOV_SAMPLE_DEPENDENCY_UNKNOWN; + if (track->cluster[i].flags & MOV_DISPOSABLE_SAMPLE) { + reference = MOV_SAMPLE_DEPENDENCY_NO; + } + if (track->cluster[i].flags & MOV_SYNC_SAMPLE) { + dependent = MOV_SAMPLE_DEPENDENCY_NO; + } + avio_w8(pb, (leading << 6) | (dependent << 4) | + (reference << 2) | redundancy); + } + return update_size(pb, pos); +} + static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track) { avio_wb32(pb, 0x11); /* size */ @@ -2353,6 +2377,8 @@ static int mov_write_stbl_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext track->par->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->par->codec_type == AVMEDIA_TYPE_VIDEO && track->has_disposable) + mov_write_sdtp_tag(pb, track); if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS) mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE); if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && @@ -5316,6 +5342,10 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt) if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE) trk->has_keyframes++; } + if (pkt->flags & AV_PKT_FLAG_DISPOSABLE) { + trk->cluster[trk->entry].flags |= MOV_DISPOSABLE_SAMPLE; + trk->has_disposable++; + } trk->entry++; trk->sample_count += samples_in_chunk; mov->mdat_size += size; |