[Mesa-dev] XvMC gets iDCT support (at least on R600)

Christian König deathsimple at vodafone.de
Wed Nov 24 11:39:33 PST 2010


Am Mittwoch, den 24.11.2010, 01:09 +0000 schrieb Andy Furniss:
> Actually in the case of pendulum, what I saw as artifacts are in reality 
> small areas of correctness where black/white are rendered properly as 0/255.
> 
> Compared to pre-idct, idct is mostly not rendering black or white 
> correctly. The (HD) test stream -
> 
> http://www.w6rz.net/ramp.zip
> 
> Looked OK before idct but is quite wrong now.
Had a particular boring meeting today and while making a nice face to
whatever the guy in front was talking about I had the idea to spread the
ycrcb scaling over the two stages, so that we don't get a numerical
problem.

The end result looks really good now, at least how far I can tell.

Christian.



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