[MEncoder-users] xvid second pass

[Dominik 'Rathann' Mierzejewski]

On Monday, 06 March 2006 at 00:40, Marco wrote:
> > As suggested, bitrate should be specified for the second pass.
> 
> Maybe I found a wrong HOWTO
> http://gentoo-wiki.com/HOWTO_Mencoder_Introduction_Guide
> 
> [...]
> 
> *  Audio preprocessing
> mencoder dvd://1 -ovc frameno -o frameno.avi
> * First pass
> mencoder dvd://1 -ovc xvid -xvidencopts pass=1 -o /dev/null
> * Second pass
> mencoder dvd://1 -ovc xvid -xvidencopts pass=2 -o <filename.avi>
> 
> What is that audio preprocessing step for?

It was a technique that has since been obsoleted, because we found that
it could lead to A/V desync. It is recommended to encode audio with
every pass.

> Why wasn't specified any bitrate?

Ask the author of that guide.

> Could it work?

Obviously not. Also, I'm sure you have noticed the commands are incomplete
and RTFM is required.

Regards,
R.

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