[XviD-devel] A SSIM Plugin for XviD
skal
skal65535 at orange.fr
Fri Oct 13 12:47:29 CEST 2006
forgot to mention:
> Message du 13/10/06 11:09
> > The computation of ssim is slow. I tried to speed it up with a bit asm,
> > but I have not coded in asm before. It would be great if some of the asm
> > wizards could comment. It can be sped up more by reducing accuracy, by
> > changing GRID to 2 or 4. But there seems to lurks a bug, as this
> > sometimes gives strange results. I will look into this.
>
> also: since MMX is mixed with floats, i fear some emms() were
> required, which i added. Could be an explanation for the strange
> behaviour.
there's a small bench for ssim functions included in xvid_bench.c too,
which shown no problem (unless the bench is itself broken, of course).
Skal
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