Videoconvert needs to be optimized

Sebastian Dröge sebastian at
Wed Jun 18 09:28:03 PDT 2014

On Mi, 2014-06-18 at 08:37 +0200, Edward Hervey wrote:
> On Tue, 2014-06-17 at 16:33 +0000, Yaroslav Andrusyak wrote:
> [...]
> > 
> > 20% is a nice boost as for me.
>   Sure ... for a function that no longer does the same thing. You've
> essentially hardcoded the conversion matrix.
>   Have you looked at the generated assembly of the original function ?
> Maybe it's just doing expensive fetch for convert->cmatrix[][]. Try
> bringing those locally ?

Hmm, I thought I pushed a patch that does exactly this... and it was
something like a 5-10% speed improvement. Have to check if I have it in
a branch somewhere locally.

Sebastian Dröge, Centricular Ltd -
Expertise, Straight from the Source
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