[MEncoder-users] Problem re-encoding matroska xvid+ac3 file

[Guillaume POIRIER]

Hi,

On 5/26/05, Maciej J. Woloszyk <mat at esi.com.pl> wrote:
> Hi,
> I've been using mencoder for quite some time without any significant problems.
> However lately I've been downloading some anime files some of which are
> contained in matroska files. As my standalone DVD player does not support
> matroska I need to re-encode it to standard avi (hardcoding subs). Problem is
> the input files seems to be vop packed xvid's with ac3 audio and mencoder
> can't reencode them properly - I get some horrible A/V desync whatever I try.
> And when I try to use just stream copy to transfer both audio and video
> streams into avi container using:
> mencoder -oac copy -ovc copy -o output.avi input.mkv
> It starts fine and after some 5000 frames I get the message "Too many audio
> packets in the buffer" and it stops and effecting 3 minutes of the output
> file is broken - it has A/V desync and some compression artifacts.

Try this:
http://fixounet.free.fr/avidemux/doc/en/standalone.xml.html

> Is there any way to make it re-encode correctly? I don't understend why
> mplayer can play the input file perfectly fine and mencoder can't re-encode
> it. Is there some difference in code used by mplayer and mencoder? Shouldn't
> both programs use the same mechanisms?

That's what I'd expect too...

Guillaume