[MPlayer-dev-eng] 3 pass encoding syntax poll

[Matthias Schwarzott]

On Friday 11 February 2005 18:09, Martin Drab wrote:
> On Fri, 11 Feb 2005, Andreu Escudero wrote:
> > Better:
> > 1       First pass of multi-pass encoding
> > 2       ALERT - Only for 2 pass encodings
> >          Second pass of 2 pass encoding
> > 3       ALERT - For N pass encodings (where N >= 2)
> >          Subsequent passes (2nd and up) of multi-pass encoding
> >          The log file is overwriten (refined) for each pass.
>
> Even better and IMHO clearer:
>
> 1 First pass (only generate log file)
> 3 N-th pass (read, refine, and write log file)
> 2 Last pass (only read log file)
>
Question: What is the mean reason to differentiate between the here called 
pass two and three except from writing a log file in pass three and skipping 
that in two?

Wouldn't it be much simpler to join two and three and write the new logfile 
everytime. And thus having these sequences.

two-pass: 12
n-pass: 1222

Or is it a big performance drop in pass two of a two-pass encoding?

Matthias