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Re: [MPlayer-users] introducing DVD-to-DivX approach that fixes A/Vsync


To: "MPlayer usage questions, feature requests, bug reports" <mplayer-users@xxxxxxxxxxxx>
Subject: Re: [MPlayer-users] introducing DVD-to-DivX approach that fixes A/Vsync problems
From: Rich Felker <dalias@xxxxxxxxxx>
Date: Tue, 5 Jul 2005 13:34:31 -0400
Delivered-to: itdp@localhost
Delivered-to: mplayer-users@mplayerhq.hu
In-reply-to: <20050703231645.62ee4682.martin@mkcollins.org>
References: <20050703173500.GD12291@jay-jay.net><20050703231645.62ee4682.martin@mkcollins.org>
User-agent: Mutt/1.3.25i

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@xxxxxxxxxxx> 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.

Rich

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