Xvidcap: Audio/Video not syncing!

Big issue, it syncs fine for 20~ seconds then it starts eventually desyncing with the sound and after a few minutes it's waaaaaaay off.
This is with ffmpeg recording, tried other ones with the same effect... Any ideas?
Google couldn't help me.

Possible leads:
1.) There's some talk on the SourceForge xvidcap FAQ about the RPMs having a sync patch which is only in SVN normally... this is likely old, though... maybe ask the devs?
2.) Are there any cli options for xvidcap? I know there's a config file, too.
3.) Dynamic audio/video desync means either it's trying to record at the wrong framerate or audio frequency, or your player's bad, or the PC's too slow. Try another (fast) PC with another player, try tuning the options (use Google to help). You might (definitely possible, depends on whether you can find the right values) also be able to edit the finished video to change the FPS / audio frequency - AviDemux might be able to do it. Probably not a long-term solution, though.

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Xvidcap: Audio/Video not syncing!

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