[FFmpeg-devel] [PATCH] hack/proof of concept for openmp acceleration of yadif

[Clément Bœsch]

On Sat, Jan 21, 2012 at 12:56:52PM +0100, Joakim Plate wrote:
> Just though i'd put it somewhere public. It's a very simple patch to
> parallelize yadif deinterlacing. Preferably it should be done using
> normal pthreads, but the threading code in ffmpeg seem geared to
> decoding and not filtering + this ended up so silly simple.
> 
> Had weird issues with openmp to start with, 100% usage on first
> decode, but then every following tries nicely distributed between
> cores.
> 

Pretty simple and neat; do you mind doing some benchmarks with -threads
auto? I suspect a potential slowdown if all the cpu are already in use.

[...]

-- 
Clément B.
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