On Mon, Nov 22, 2021 at 09:49:26AM +0000, Gyan Doshi wrote: > ffmpeg | branch: master | Gyan Doshi <ffm...@gyani.pro> | Tue Nov 16 19:02:32 > 2021 +0530| [203b0e3561dea1ec459be226d805abe73e7535e5] | committer: Gyan Doshi > > avformat/mov: make STTS duration unsigned int > > As per 8.6.1.2.2 of ISO/IEC 14496-12:2015(E), STTS sample offsets > are to be always stored as uint32_t. So far, they have been signed ints > which led to desync in files with very large offsets. > > The MOVStts struct was used to store CTTS offsets as well. These can be > negative in version 1. So a new struct MOVCtts was created and all > declarations for CTTS usage changed to MOVCtts. > > > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=203b0e3561dea1ec459be226d805abe73e7535e5 > --- > > libavformat/isom.h | 9 +++++++-- > libavformat/mov.c | 20 ++++++++++---------- > libavformat/movenc.c | 2 +- > 3 files changed, 18 insertions(+), 13 deletions(-)
This breaks: ./ffmpeg -i ~/videos/mp4-negative-stts-problem.mp4 -c copy -t 3 -y file-negstts.mov https://samples.ffmpeg.org/mov/mp4-negative-stts-problem.mp4 thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Avoid a single point of failure, be that a person or equipment.
signature.asc
Description: PGP signature
_______________________________________________ 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".
