Subject: Re: DVD movies.
To: Richard Rauch <rauch@rice.edu>
From: Frederick Bruckman <fredb@immanent.net>
List: netbsd-help
Date: 07/22/2002 12:35:36
On Mon, 22 Jul 2002, Richard Rauch wrote:

> > > At least under XFree86 3.3.6 (no Xv extension, I believe), the quality is
> > > something of a trade-off against what mplayer gives.  The picture appears
> > > smoother in ogle, but the contrast is lower (and/or the value of each
> > > color is lower).  As a result, black comes out as somewhat washed-out as
> > > dark grey, rather than black.
> >
> > If you have the cycles to spare, you can get a very smooth picture
> > from "mplayer" by applying the post-processing filters, e.g. "mplayer
> > -vop pp -npp de".
>
> Hm...interestingly, this particular option causes visible banding in
> subtly-shaded regions.  (At least on a 16bpp display...maybe it looks
> better on 24bpp?)

Maybe "-noslices" would help? No doubt, it's hardware dependent. My
K6-2/Voodoo 3 can only use the postprocessor on small files. (Don't
have a DVD player on that one.) Sometimes "-vop pp -npp fa" works
better. What happens when I give the processor too much to do is that
it degrades into "slide-show-mode"; I've never seen banding.

Frederick