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Old 17th December 2009, 00:11   #14  |  Link
IanB
Avisynth Developer
 
Join Date: Jan 2003
Location: Melbourne, Australia
Posts: 3,167
A cunning approach might be to repeat the natural duplicates in lower motion parts of the clip.

Neuron2's Dup filter normally used for making approximate duplicates exact duplicates also can log the metrics to a file. i.e. (Debug=True, Log="log.txt")

A little calcu-processing to find the natural duplicates and insert extra frames there. Probably need some rules like duplicates no closer than 10 frames and no further then 120 frames. As AV sync errors of 200ms are just detectable you could hold upto a 4 or 5 frame deficit for a short while, perhaps including some scene change detection to allow for dumping all the deficit there and maybe even go 1 frame into credit.

For 2.5.8 DuplicateFrame() takes multiple frame numbers to duplicate so you could add say 50 at a time. And Stickboy has a good selection of frame remapping tools.

Just an idle thought.
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