[x264-devel] x264 decoding is to slow on cell processor (PS3)

[Håvard Espeland]

On Thu, Oct 04, 2007 at 05:44:33PM -0700, Alex Izvorski wrote:
> On Wed, 2007-10-03 at 14:14 +0400, Dima Dima wrote:
> > I've been trying to play x264 video on my PS3 and results was awfull.
> > The question is: are there anybody who involved into porting x264
> > decoder to use the full advantage of cell processor (SIMD + spu's)?
> 
> Hello Dima,
> I have looked at what SIMD assembly on the Cell processor would look
> like.  It is somewhat not as good as you would think from looking at the
> processor specs.  I was looking at it from the perspective of porting
> x264 actually, since at the time (before quad Core2 Duo/Woodcrest
> processors) it looked very promising.  Now not so much, I'd rather have
> 2x4 Woodcrests than 8 SPU's any time.
> There have been other people who are interested (Guillaume Poirier, you
> reading this? ;) but my sense is nothing will happen without someone
> contributing hardware and money.
> Regards,
> --Alex
> 
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Hi, I am working on H.264 encoding on Cell/B.E (PS3) as part of my Master's
thesis, and I will primarily be working on the x264 encoder. I have
recently started on the project, and will try to keep you guys informed
on the progress as well as release all source code.

-- 
Håvard Espeland