[MEncoder-users] Mencoder failure with -ss and -endpos

[Pete Davis]

This worked for a 43 second block, but for a 90 second block, the second
pass fails:

First pass:

mencoder -dvd-device ./ dvd://3 -ss 00:08:00 -endpos 90 -oac copy -o
/dev/null -vf pullup,softskip,scale=512:288 -ovc lavc -lavcopts
vcodec=mpeg4:vbitrate=1100 :trell:mbd=2:keyint=30:vpass=1:turbo -ofps
24000/1001 -ffourcc DIVX

Second pass:

mencoder -dvd-device ./ dvd://3 -ss 00:08:00 -endpos 90 -oac mp3lame
-lameopts cbr:br=128 -o movie.avi  -vf pullup,softskip,scale=512:288 -ovc
lavc -lavcopts vcodec=mpeg4:vbitrate=1100:trell:mbd=2:keyint=30:vpass=2
-ofps 24000/1001 -ffourcc DIVX


It stops at 80.8 seconds into the second pass with:

Pos:  80.8s   1956f (23%)  27fps Trem:   3min  49mb  A-V:0.037 [1105:128]
1 duplicate frame(s)!
mencoder: ratecontrol.c:644: ff_rate_estimate_qscale: Assertion
`picture_number<rcc->num_entries' failed.

Any ideas?

Thanks

Pete