I noticed this as well and thought I was able to reproduce it. I think it happens if you have a long H.264 clip, open it with QT player PRO and 'copy' a short part of it into a new clip and save it with the "save as standalone clip" option. In my opinion, QT doesn't encode the clip new but saves from the last GOP start before your IN point and adds a time offset information.
When viewing the clip with QT player and/or the MOV32 option in Nuke 9, it just works fine, because the QT engine interprets the time offset. But if you use the MOV64 option OR view it in VLC player, the time offset will be ignored and you see the frames before your IN point that were also saved in your clip because of GOP size. But that's all wild guessing. I'll reported that to Foundry support and they added the feedback to: Bug 46281 - Differences in mov32 and mov64 QuickTime reading and frame rate with some H.264 movies Could you have a look if you're clip also differs in the VLC player, which also uses the FFmpeg base for playback I think. Abraham Abraham Schneider Head of VFX pipeline / VFX Supervisor Türkenstr. 89, 80799 München / Phone +49 89 3809-1096 EMail [email protected] Visit us on Facebook!________________________________________ Von: [email protected] [[email protected]]" im Auftrag von "John Stewart [[email protected]] Gesendet: Donnerstag, 14. Mai 2015 20:23 An: Nuke user discussion Betreff: [Nuke-users] H264 timing changes I am noticing on longer H.264 quicktimes read in nuke (not generated by nuke), that the timing of the clip itself changes depending on if you use a 64bit decoder or a 32bit decoder. Anyone else ever see that? We're on 9.0v5. John _______________________________________________ Nuke-users mailing list [email protected], http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users ________________________________ [http://www.arricommercial.de/wp-content/uploads/2015/04/2015-04-16a-E-mail-Signatur_ARRI_Media.jpg] <http://www.arri.de/filmtv> Get all the latest information from www.arri.de/filmtv<http://www.arri.de/filmtv>, Facebook<https://www.facebook.com/pages/ARRI-Film-TV/117731121606986?fref=ts> ARRI Media GmbH Sitz: München - Registergericht: Amtsgericht München Handelsregisternummer: HRB 69396 Geschäftsführer: Franz Kraus; Dr. Jörg Pohlman; Josef Reidinger _______________________________________________ Nuke-users mailing list [email protected], http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
