Audiosynch problem converting 720p h264 to XviD... help!

[CactusMan]

Hello guys...

I'm trying to convert 720p h264 bluray rip to XviD. One mkv internal audio and one external audio. Both working synch to the mkv... but both not working on converted xvid. Both videos are 23.976 fps. Both have same time length and same number of frames. Audio begins synched and at the end of movie has just some seconds of "out of synch".

Using:
virtualdubmod
AviSynth v2.58 (with script generated by MeGUI)

First test:
LoadPlugin("O:\MeGUI\tools\avs\directshowsource.dl l")
DirectShowSource("file.mkv", fps=23.976, audio=false, convertfps=true).AssumeFPS(24000,1001)
crop(0, 2, 0, -2)
Spline64Resize(720,384) # Spline64 (Sharp)

Second test (deleted all info about frame rate):
LoadPlugin("O:\MeGUI\tools\avs\directshowsource.dl l")
DirectShowSource("file.mkv", audio=false)
crop(0, 2, 0, -2)
Spline64Resize(720,384) # Spline64 (Sharp)

The config in xvid was default. With 2-pass encondig.

Someone has any ideas?

Attached files info from mediainfo:
file.mkv.txt
01.avi.txt

[jagabo]

I'd try FFVideoSource() or FFmpegSource2() instead of DirectShowSource().

[hello_hello]

In case you're not aware, the easiest way to follow jagabo's suggestion using MeGUI is to use the File/Open menu to set up an encoding job and let MeGUI open it using the file indexer.

[CactusMan]

Thank you for the help...

Jagabo,
That solved the problem and now I'm aware of variable frame rate.

hello_hello,
thanks for this tip... it's easier than writing the script...