[Ffmpeg-devel-old] Re: [Ffmpeg-devel] Snow motion blocks

Skal skal
Tue Apr 19 18:33:37 CEST 2005


On Tue, 2005-04-19 at 14:43, Tuukka Toivonen wrote:
> Anyway, 5th degree interpolation polynomial and H.264 style
> interpolation were virtually equally good but as H.264 coefficients
> have smaller denominators, it was chosen (by the standardization 
> committee) for that reason, I suppose.

	Indeed. More precisely: the horizontal + vertical
	arithmetic for interpolating the (1/2,1/2) center sample
	fits into 16-bits registers. Always a good property...


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