[MPlayer-dev-eng] Re: [PATCH] New video filter: deblendlogo

D Richard Felker III dalias at aerifal.cx
Sun Feb 27 19:28:18 CET 2005


On Sun, Feb 27, 2005 at 06:03:56PM +0100, Ivo wrote:
> On Sunday 27 February 2005 04:46, Zoltan Hidvegi wrote:
> > Why not?  RGB -> YUV is an affine tansformation, and affine
> > transformation of convex combination of points (i.e. alpha-bending) is
> > the convex combination of the affine transformed points.  This means
> > that alpha-bending works just fine in YUV, as long as you use the YUV
> > transformed logo image.
> 
> You're right. I made a mistake in my thinking. I shouldn't post "utter 
> nonsense" when it's late at night :-)
> 
> Now let's see why extended WAV support breaks vorbis decoding.

Fixed. :)

Rich




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