[FFmpeg-devel] [PATCH] lavfi/lut: use FF_CEIL_RSHIFT for chroma w/h rounding.

Clément Bœsch ubitux at gmail.com
Sun May 12 13:17:04 CEST 2013


On Sat, May 11, 2013 at 03:06:17AM +0200, Michael Niedermayer wrote:
> On Sat, May 11, 2013 at 02:00:59AM +0200, Clément Bœsch wrote:
> > On Sat, May 11, 2013 at 01:04:24AM +0200, Clément Bœsch wrote:
> > > ---
> > > We might consider adding a FF_CEIL_RSHIFT2 with this second form which,
> > > according to Jason and Ronald, might be more interesting in case of a
> > > constant shift.
> > > 
> > 
> > Confirmed with a bench:
> 
> see av_builtin_constant_p
> 

Thanks, this is interesting.

Patch applied since in this case FF_CEIL_RSHIFT is faster.

-- 
Clément B.
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