[MPlayer-users] Re: encoding quality - bpp, resolution, quantsand quality

D Richard Felker III dalias at aerifal.cx
Fri Sep 12 04:53:19 CEST 2003

On Thu, Sep 11, 2003 at 06:05:05PM -0700, Corey Hickey wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> HR wrote:
> >How useful is trell for DVD encodings? Should be less noise there than
> >from a TV/VCR source? How does digital TV broadcasting fit in here?
> In my experience it increases PSNR somewhat. Of course, PSNR isn't
> everything, but with such small differences it's nice to have a
> quantifiable comparison.
> >
> >I also considered using mbd=1, or is that the default when using vhq? I
> >mean if there's a difference between the "vhq" turned on by mbd=1 and
> >the vhq parameter, what is it? And if not, do they work well together?
> >
> >HR
> As far as I know, vhq is just an alias for mbd=1. You might as well
> try mbd=2, though. My tests have shown it to increase psnr somewhat,
> again.

I don't really understand mbd=2, but I'd recommend doing some testing.
It might only improve psnr with 2pass encoding.


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