[FFmpeg-devel] [PATCH] improve yuv422p to rgb in libswscale

[Michael Niedermayer]

On Tue, Nov 30, 2010 at 04:07:20AM -0800, Baptiste Coudurier wrote:
> Hi
> 
> $subject, use full vertical data when convert 422p, improve quality a lot.
> 
> -- 
> Baptiste COUDURIER
> Key fingerprint                 8D77134D20CC9220201FC5DB0AC9325C5C1ABAAA
> FFmpeg maintainer                                  http://www.ffmpeg.org

>  x86/yuv2rgb_template.c |   25 ++++-------
>  yuv2rgb.c              |  109 ++++++-------------------------------------------
>  2 files changed, 26 insertions(+), 108 deletions(-)
> 16f384c9b114c76572a539511c42267ce2942c67  yuv422p_to_rgb.patch

this looks like it would make 420p->rgb quite a bit slower.
If so thats a problem.
making 422p->rgb slower isnt a real problem as it can be changed to 420p
by manipulating linesizes

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Rewriting code that is poorly written but fully understood is good.
Rewriting code that one doesnt understand is a sign that one is less smart
then the original author, trying to rewrite it will not make it better.
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