[MEncoder-users] RGB => YV12 conversion

[Matthias Wieser]

Am Freitag, 23. September 2005 18:04 schrieb Vladimir Mosgalin:
> Hi Matthias Wieser!
>
>  On 2005.09.23 at 10:45:14 +0200, Matthias Wieser wrote next:
> > >  On 2005.09.22 at 12:52:12 -0700, RC wrote next:
> > > > > Xvid often looks better if you forget to use a postprocessing
> > > > > filter at playback time.
> > > >
> > > > I don't use postprocessing at all, and I still never see cases
> > > > where Xvid looks better.
> > >
> > > That's interesting, because since I switched to xvid I almost
> > > haven't seen cases where lavc is better than xvid. I'm talking
> > > about high bitrate (1.5-2 mbit/s) encoding that looks just like dvd
> > > where postprocessing only destroys details.
> >
> > If the postprocessing is done right it does not destroy any real
> > details, only compression artefacts.
>
> What can I try then, besides pp=hb/vb/dr, pp=ac and [f]spp? They all
> destroy details even on video with qp=2.

You could try to adjust the thresholds of the deblocking filters. Instead 
of pp=ac (== ha:a:128:7,va:a,dr:a) maybe ha:a:64:9,va:a,dr:a