ffmpeg | branch: master | David McElroy <david@mcelroy.online> | Mon Jul 21 17:01:47 2025 -0400| [4b6f6af384a76b8ca1cbb4fdde734ffaf111a934] | committer: Michael Niedermayer
avformat/movenc: fix HEVC fmp4 HLS init segment for Apple playback HEVC fmp4 HLS video produced by ffmpeg is currently unplayable on Apple software (Safari, QuickTime, AVFoundation). This is caused by an empty sdtp atom being erroneously written to the fmp4 init segment. The `has_disposable` flag can be set for a track with B-frames, but the init segment contains no actual frames (track->entry == 0). Writing an sdtp atom in this case is incorrect and causes Apple's parsers to reject the file. This patch fixes the issue by ensuring the sdtp atom is only written if track->entry is non-zero. A similar patch was proposed in November 2023 by Jay Zhang, but it was never merged. Link: https://lists.ffmpeg.org/pipermail/ffmpeg-devel/2023-November/317173.html Co-authored-by: Jay Zhang <wangyoucao...@gmail.com> Signed-off-by: David McElroy <david@mcelroy.online> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4b6f6af384a76b8ca1cbb4fdde734ffaf111a934 --- libavformat/movenc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/movenc.c b/libavformat/movenc.c index 8d13ac81cd..bb0af11863 100644 --- a/libavformat/movenc.c +++ b/libavformat/movenc.c @@ -3273,7 +3273,7 @@ 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) + if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && track->has_disposable && track->entry) 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); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
