On Wed, Feb 7, 2024 at 10:28 PM Mark Filipak <markfilipak.i...@gmail.com> wrote:
> Hi Carl, > > On 07/02/2024 13.56, Carl Zwanzig wrote: > > On 2/7/2024 10:34 AM, Mark Filipak wrote: > >> Okay. Why are they different? > > > > Because the containers are different? An mp4 container is not the same > as an mkv (or avi or mpeg), > > they must have different demuxers. > > They are the same source, same container. The only difference is command. > > ffmpeg -ss 20.061708333 -copyts -i %SOURCE% -map 0 -c copy -sn -dn > -muxdelay 0 %TARGET% > ffmpeg -copyts -i %SOURCE% -map 0 -ss 20.061708333 -c copy -sn -dn > -muxdelay 0 %TARGET% > > Why do the results differ? They're not a little different. They're very > different. The DTSs differ. > The PTSs differ. The cutting points differ by a couple hundred frames. > Even some of the packet > lengths differ! This is serious. > > I can't tell if the GOPs differ -- DTS-sorted v PTS-sorted -- because it's > impossible to correlate > 'framecrc' results and 'showinfo' results. > > use -v debug One of them IIRC uses trim filters for seeking.... --Mark. > > > _______________________________________________ > 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".