[MPlayer-dev-eng] DivX5 & VBR encoding

[D Richard Felker III]

On Mon, Sep 09, 2002 at 03:08:50AM +0200, Kim Minh Kaplan wrote:
> Felix Buenemann writes:
> 
> > on pass one it uses much higher bitrate (~1700kbps for me instead of 
> > ~900kbps), on pass two I don't really see a difference to divx5 one pass, 
> > high action scenes are still blocky.
> > I tested with latest divx5linux lib.
> 
> Yes, pass one does constant quantizer (2) encoding, so you better
> direct the file to /dev/null.  My personal feelings on quality is that

Is there a good reason for this? I'm not terribly familiar with 2pass
encoding theory aside from the basics, but I know the way lavc does it
is quite different. Are there papers on the issue?

Rich