[MEncoder-users] -ss and -endpos cutting creates very visible h264 artifacts

[Marc MERLIN]

I sometimes trim videos like this:
mencoder -oac copy -ovc copy  -ss 0 -endpos 4:00 source.avi -o dest.avi

This worked fine until I started doing it with h264 encoded videos.

Problem is that the first resulting keyframe isn't computed right and
you get very visible artifacts like here:
http://www.youtube.com/watch?v=AZJkFHWaTRI
(see upper right of the picture for the first 10 seconds)

I'm using SVN-r29237-4.4.1.

Is there a fix to this problem?

Thanks,
Marc
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Home page: http://marc.merlins.org/