[Mplayer-advusers] mencoder crash/fail with some DVDs/VOBs

[Kim Minh Kaplan]

Julian Mayer <julianmayer at mac.com> writes:

[...]
> i'm doing normal 3-pass encoding:
> mencoder MENCODER.VOB -ovc frameno -o frameno.avi -oac mp3lame
> -lameopts vbr=3
> mencoder MENCODER.VOB -ovc lavc -lavcopts vcodec=mpeg4:vpass=1 -oac
> copy -o /dev/null
> mencoder MENCODER.VOB -endpos 10 -ovc lavc -lavcopts
> vcodec=mpeg4:vpass=2 -oac copy -o movie.avi
[...]
> Pos:   0.0s      1f (21%)   0fps Trem:   0min   0mb  A-V:0.000 [0:0]
> Skipping frame!
> Pos:   0.1s      3f (23%)   0fps Trem:   0min   0mb  A-V:0.008 [0:0]
> Skipping frame!
> Pos:   0.1s      5f (23%)   0fps Trem:   0min   0mb  A-V:0.016 [0:0]
> Skipping frame!

This looks like interlaced video.  I think 3 pass encoding does not
work with these.  If that's the problem you are facing, just rm
frameno.avi and do -oac mp3lame during all passes and it should be ok.

Kim Minh.