Videoconvert needs to be optimized

Sebastian Dröge sebastian at centricular.com
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 - http://www.centricular.com
Expertise, Straight from the Source
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 949 bytes
Desc: This is a digitally signed message part
URL: <http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20140618/bf4b0e19/attachment.sig>


More information about the gstreamer-devel mailing list