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[HELP] Audio/video out of sync in output
#14
(01.08.2020, 18:36)Selur Wrote: Looked at the debug output, sadly none of the tools used reported any problems.
No clue what is different between this and your other files which work without a problem.
Only thing that seems strange is that Hybrid expected 255 388 frames but x264 encoded only 254 844 frames. Small difference +/- 2 frames are do be expected but ~500 frames difference seems like there might be something wrong with the processing of the source.
Here are a few things to try:
  • Assuming you have a 64bit vfw codec for Lagarinth installed on your system you can try using AviSource instead of LWLibAVSource, by enabling "Filtering->Vapoursynth->Misc->Input->Prefer AviSource for .avi input"
  • You can also try using FFMpegVideoSource2 instead of LWLibAVSource by disabling "Filtering->Vapoursynth->Misc->Input->Prefer LWLibAVSource over FFmpegSource2.
  • You can also try enabling "Config->Internals->Decoding->CFR output"
  • You can try whether using Avisynth does change anything. There you can also try whether enabling "Filtering->Avisynth->Misc->Sourcefilter Settings->Prefer AviSource for avi input" does change anything.

Cu Selur
Thanks for the analysis. I have a theory before trying your suggestion. The original VHS tape had some defects near the edges of the film, so the captured footage was not smooth as you can see in the sample I've PM'd you. Could this be the reason for the frame drop/sync issues? I thought of this originally, but then thought this is just converting one format to the other, so if the AVI doesn't have sync issues then the mp4 shouldn't either.
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RE: Audio/video out of sync in output - by retractOffer - 01.08.2020, 21:51

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