[MPlayer-users] Problem with mencoder

D Richard Felker III dalias at aerifal.cx
Thu Aug 14 01:55:07 CEST 2003

On Wed, Aug 13, 2003 at 08:48:10PM +0400, Vladimir Mosgalin wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> On Wed, 13 Aug 2003, D Richard Felker III wrote:
> DRFI>> OF> > (some frames are skipped)
> DRFI>> OF> > 
> DRFI>> 
> DRFI>> I wonder why mencoder does this. There is solution, though. When you do
> DRFI>> 
> DRFI>> cat *vob | mencoder -, it skips some frames in the beginning (and
> DRFI>> produces very jumpy video in first seconds). But if you have enough
> DRFI>> space,
> DRFI>> cat *vob >temp.vob; mencoder temp.vob
> DRFI>> works perfectly, without frame skipping. It really looks like a bug to
> DRFI>> me - mencoder _can_ encode without skipping those frames, so why do I
> DRFI>> have to make huge temp.vob for this?
> DRFI>Eh? The problem here is field-encoded mpeg, and copying the vob to hd
> DRFI>first will not help...
> I'm not talking about OF's real problem, he noticed that 'some frames
> are skipped' in both passes, and this is another problem. It can lead to
> very bad encoding of the first seconds.
> "cat VTS_01_0.VOB | mencoder -" results in skipped frames in the
> beginning, "mencoder VTS_01_0.VOB" doesn't. When encoding multiple
> VOB's, this is really annoying. It will be great if this will be fixed
> or if it will be able to run "mencoder *VOB".

Neither should ever be used. Instead, use mencoder dvd:// -dvd-device
/path/to/vobs or better yet just encode straight from the DVD.


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