[MEncoder-users] Fwd: Questions on Mencoder performace

[Phil Ehrens]

Phil Ehrens wrote:
> Dominik 'Rathann' Mierzejewski wrote:
> > > 
> > > None of these things will give you as big a performance boost as
> > > switching from xvid to lavc will. Using '-oac copy' will also give
> > > you a performance (and quality) boost. Good starting options for
> > > lavc:
> > > 
> > > -lavcopts vcodec=mpeg4:nr=1000:mbd=2:v4mv:trell:vpass=N:vbitrate=1800
> > 
> > nr=1000 is a bit too much. I wouldn't go higher than 400, 600 tops.
> > I'd also add mv0 and cbp to the mix.
> 
> mv0 and cbp look interesting, I don't know how I overlooked them!
> I'm testing them now. They look like they are potentially useful
> in my single pass mpeg4 -> dvd transcodes as well.

I just ran a test. I got a 1% file size decrease in my mpeg4 -> dvd
transcode by using mv0 and cbp, so I'm happy ;^)