[MPlayer-dev-eng] Postprocessing in GPL

[Felix Buenemann]

On Wednesday, 10. October 2001 23:51, Michael Niedermayer wrote:
> Hi
>
> On Wednesday 10 October 2001 12:47, Arpi wrote:
> > maybe we could add a hyper-fast algo too, described at:
> > ftp://mplayerhq.hu/MPlayer/doc-tech/postproc/paper_0011.pdf
> >
> > it's basicly the same as opendivx's pp algo, but uses avegaring instead
> > of the slow lowpass filtering. the results they provided are amazing!
>
> its included now (the vertical one only), and its fast but i wouldnt call
> the quality amazing imho
> feeding it with a simple linear gradient will mess the gradient up
> in: 0 8 16 24
> out: 1 12 12 23
> ive allso seen some flickering around subtitles, so it seems the hard
> switchon code based on <1.25QP isnt a very good choice, but perhaps iam
> expecting too much, considering the speed its ok
>
hmm you could try algo 2, it's more complex but has smoother averaging.

> PS: the paper didnt mention anything about overflowing of the values i
> think, they do overflow sometime though so i had to add extra code to take
> care of that
>
> Michael

-- 
Best Regards,
	Atmos
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