problem with changing fps during compression

[eltomassito]

I found bug in avidemux. If you try to recompress video other then 25fps with avidemux then fps in destination material is incorrect, i.e.:
23.976 -> 23.711
24.000 -> 23.255
29.970 -> 29.637
30.000 -> 29.670
59.940 -> 59.618
60.000 -> 59.052
And as a result audio desynchronization occurs.
Problem is applied to mp4v2 muxer. mp4 muxer seems to work ok (only one per six destination file had spoiled fps during my tests)

[Jan Gruuthuse]

Your used version of avidemux and its source?
Used Video Output, other then copy?

Menu -> Help - About

[eltomassito]

Version 2.6.11. But I've tested older versions too. x32 and x64 versions. I've tried to recompress video and destination video had spoiled framerate too.

[mean]

mp4v2 is not very tolerant regarding timing