[FFmpeg-devel] need help fixing sws on PPC

Luca Barbato lu_zero
Sun Oct 5 07:41:59 CEST 2008

Michael Niedermayer wrote:
> Hi
> Can someone who has a PPC and a x86 play a little with swscale to find
> out which convertions do not match?
> This is rather important as our regression tests as well as fate depend
> on it.
> Note -sws_flags +bitexact should be used also -sws_flags +accurate_rnd
> may be needed.
> Also note, some scalers still use floats to find coeffs (like spline)
> iam not interrested in them, that is currently area, nearest neighbor
> bilinear and bicubic are the onlx ones iam interrested in.
> And last, if something does not match, pleas explain how it does differ
> +-1 rounding or red/blue exchanged or ...

I have plenty of them, probably having a common script could help doing
the check faster (btw sparc and bfin has something to be checked as
well, isn't it?)



Luca Barbato
Gentoo Council Member
Gentoo/linux Gentoo/PPC

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