[Mplayer-cvslog] CVS: main/postproc swscale.c,1.107,1.108

[Michael Niedermayer]

Hi

On Sunday 13 October 2002 22:31, Arpi wrote:
> Hi,
>
> > Update of /cvsroot/mplayer/main/postproc
> > In directory mail:/var/tmp.root/cvs-serv28445
> >
> > Modified Files:
> > 	swscale.c
> > Log Message:
> > fixing yuy2 upscaling (use -sws 0 for the faster but uglier variant)
>
> thanks!
>
> quick bench:
>
> -vop format=yuy2 :
> BENCHMARKs: VC:   6.102s VO:   7.674s A:   0.000s Sys:   0.345s =   14.121s
>
> -vop format=yuy2 -sws 0 :  (no chroma upsampling)
> BENCHMARKs: VC:   6.107s VO:   1.244s A:   0.000s Sys:   0.334s =    7.684s
>
> -vop yuy2,format=422p :  (old method)
> BENCHMARKs: VC:   6.135s VO:   9.029s A:   0.000s Sys:   0.345s =   15.509s
>
> so it's even faster than the old method!
:)

> anyway it's strange that chroma upsampling eats more cpu than divx decoding
> :)
no its not strange, as there is a converter for not-upsampled chroma but there 
is none for the upsampled variant, btw -sws 1 should be slightly faster

[...]

Michael