[MPlayer-users] introducing DVD-to-DivX approach that fixes A/V sync problems

Giacomo Comes comes at naic.edu
Wed Jul 6 17:10:58 CEST 2005


On Tue, Jul 05, 2005 at 01:34:31PM -0400, Rich Felker wrote:
> On Sun, Jul 03, 2005 at 11:16:45PM +0100, Martin Collins wrote:
> > On Sun, 3 Jul 2005 19:35:00 +0200
> > Joachim Jautz <lists.mplayer-users at jay-jay.net> wrote:
> > 
> > > when converting a DVD into DivX using MEncoder it can (under
> > > certain circumstances) happen that the resulting movie's audio and
> > > video are out of sync. Usually the delay is about 300ms which is
> > > enough to be annoying.
> > 
> > Isn't the main reason for this that you are using abr which avi can't
> > handle very well?
> 
> No, this is a lie perpetuated by authors of stupid windows software.
> VBR is the natural audio format for avi and always has been.
> 
> > Using cbr should fix this. Or use the matroska
> > container instead of avi.
> 
> No. The a/v sync problems with vbr audio are caused by a bug in
> mencoder combined with lame's excessive prebuffering of audio when
> encoding vbr. It has nothing to do with avi container.

Is there any trick that can be used to avoid a/v sync problems 
with vbr audio using mencoder (mencoder or lame options)?

Giacomo




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