Hi FFmpeg developers, This patch fixes a bug that makes HEVC fmp4 HLS streams generated by FFmpeg unplayable on all Apple platforms (macOS/iOS Safari, QuickTime, etc.).
The issue is a malformed init segment, as detailed in the commit message. A similar patch was proposed in November 2023 by Jay Zhang, but it was never merged. https://lists.ffmpeg.org/pipermail/ffmpeg-devel/2023-November/317173.html **To Reproduce the Bug:** You can generate a problematic HLS init segment using a command like this on the current master branch: $ ffmpeg -i ../BigBuckBunny_short.mp4 -c:v libx265 -f hls -hls_segment_type fmp4 playlist.m3u8 **Sample Files:** To make review easier, I've uploaded two sample streams produced with that command from that file from latest master (commit 9c9b41b) with and without the patch applied: - Source file: https://david.mcelroy.online/ffmpegbug/examples/BigBuckBunny_short.mp4 - Broken stream (from master): https://david.mcelroy.online/ffmpegbug/examples/9c9b41b/playlist.m3u8 - Fixed stream (with this patch): https://david.mcelroy.online/ffmpegbug/examples/patched/playlist.m3u8 These links can be loaded directly in Safari to see the playback issue. - Broken init segment (from master): https://david.mcelroy.online/ffmpegbug/examples/9c9b41b/init.mp4 - Fixed init segment (with this patch): https://david.mcelroy.online/ffmpegbug/examples/patched/init.mp4 You may also note that when selected in Finder, the broken init segment fails to be recognized as HEVC video, while the fixed one is recognized correctly. I also ran `make fate` to ensure no regressions were introduced and all tests passed. The commit contains the full technical details of the fix. Thanks, David McElroy David McElroy (1): avformat/movenc: fix HEVC fmp4 HLS init segment for Apple playback libavformat/movenc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.34.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
