On Tue, Mar 2, 2021 at 8:59 PM Carl Eugen Hoyos <ceffm...@gmail.com> wrote:
> Am Di., 2. März 2021 um 01:47 Uhr schrieb Mark Filipak (ffmpeg) > <markfili...@bog.us>: > > > > The ffmpeg filter pipeline assigns a 'PTS' to each frame, > > frame by frame. > > This may not be completely unreasonable but some > comments are still necessary: > The sentence sounds to me as if the the filter pipeline always > assigns timestamps to frames, but this is neither true (many > filters do not care about timestamps and you do not have to > insert a filter which does) nor does it make the filter pipeline > special: Timestamps often come from the demuxer and / or > the decoder and may or may not change in the filterchain > (and - as I believe you realized by now - because of the > chosen output format; and also the chosen encoder - for > which you did not post a question yet). > > Frames may not have a timestamp assigned - you posted > the relevant part of the documentation. > > Concerning some of your other comments: > > The timestamps in MPEG streams may be negative. > > There is no AVFrac in the (current) codebase. > > Funny how he look at ultra old svn code dump, good luck with that, How he even managed to find links to svn stuff .... > Carl Eugen > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
