XVid playback jerky?

[Wildfire]

I regularly rip DVD's to XVid/AC3 using DVD Decrypter, DVD2AVI and then GordianKnot/VirtualdubMod. That has always worked just fine and resulted in excellent quality rips.

However, since GKnot 0.28.7 my rips have "jerky" visuals. Movement shows a slight "stutter" which I have never seen before.

Switching back to the previous GKnot release didn't help, the encodes remain "jerky".

What could be the cause of the problem? I'm thinking of XVid itself, because I can't think of anything that would make GKnot itself the cause...

[Koepi]

You installed a new version of GKnot, got problems, went back to an older version and the problems remain?

Sounds to me like a GKnot problem.

(In XviD configuration hit "Load defaults" once and see if anything changes after applying all your settings again.)

Regards
Koepi

[Mango Madness]

It could be really bad deinterlacing

[Manao]

It may be a problem of muxing video and ac3 together. So, either you search another way of muxing ( via avimux, for example ), or you change your container ( it's about time to use mkv ). But as Koepi stated, it highly improbable that XviD is guilty in your case ( Try with another codec to be sure ).

[Wildfire]

After a week of tiresome attempts to solve the problem, I think I have finally nailed the cause...

DVD2AVI Was mysteriously set to "Forced FILM", causing my PAL-encoded VOBs to be recognized as 20fps instead of 25fps.

I have corrected this setting and created a new D2V project file for GordianKnot. At the moment I'm running a new two-pass encoding session, when it's done I'll know for sure whether it was the "Forced FILM" setting which caused the problem.

So it's neither a GordianKnot nor an XVid problem - it was a DVD2AVI problem... :)


Manao: I recognize the problem you're describing. I had that in my early days of ripping when I muxed AC3 using Nandub. Thankfully I found out about AVIMux and I've been using that ever since.

Koepi: thanks for the XVid binaries! :)