[MEncoder-users] -ss and -endpos cutting creates very visible h264 artifacts
marc_mplayer at merlins.org
Tue Mar 2 07:47:20 CET 2010
On Sun, Feb 28, 2010 at 08:30:20AM +0100, Reimar Döffinger wrote:
> On Sat, Feb 27, 2010 at 11:23:16PM -0800, Marc MERLIN wrote:
> > > Copying the video completely into a different format forst, e.g. mkv, with ffmpeg or mkvmerge
> > > or so might fix it...
> > Yes, if I re-encode it will likely work. It just takes a long time to
> > re-encode and loses quality :)
> Not re-encoding (mkvmerge can't even do encoding AFAIK), just copying it.
> It won't allow you to cut more precisely, but at least there should be
> no artefacts.
Thanks. It was worth a shot.
I tried this:
mkvmerge -o out.mkv 491_Keystone2_treerun_fall.avi
mencoder -ss 0:1:20 -endpos 0:0:30 -oac copy -ovc copy out.mkv -o out2.mkv
And it's the same problem, out2.mkv still seems to be missing a keyframe and
the video only looks ok after about 10 seconds.
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Home page: http://marc.merlins.org/
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