[FFmpeg-devel] [PATCH] Factorize swscale.c:yuv2yuvX16inC()

[Stefano Sabatini]

On date Saturday 2010-01-16 17:07:55 +0100, Michael Niedermayer encoded:
> On Sat, Jan 16, 2010 at 03:13:57PM +0100, Stefano Sabatini wrote:
> > Hi, as in subject.
> > -- 
> > FFmpeg = Faithful and Forgiving Mastering Patchable Enlightening Game
> 
> >  swscale.c |   10 +---------
> >  1 file changed, 1 insertion(+), 9 deletions(-)
> > 67d627313437159361723b70704958fbecaf13c0  lsws-factorize-yuv2yuvx16inc.patch
> 
> rejected, patch just breaks optimizations no improvment

Mmh, could someone explain why:

if (1_OR_O_MACRO(x))
   f(x, 1);
else
   f(x, 0);

should be more efficient than:
f(x, 1_OR_0_MACRO(x));
?

I suppose it may deal with cast operations?

Regards.
-- 
FFmpeg = Fiendish & Friendly Martial Puristic Encoding/decoding Guru