[FFmpeg-devel] Optimizations for Cell Broadband Engine

Loren Merritt lorenm
Mon May 7 22:03:32 CEST 2007

On Mon, 7 May 2007, John Kelley wrote:
> We've been working on some general optimisations in #ps3dev on
> irc.freenode.net, so far we have an optimised CSC algo that runs at
> around 700fps at 720P using one SPU and also a bilinear scaler that
> runs at around 70fps at 720P right now (needs some more optimisations)
> and I've been working on an optimised 8x8 iDCT for the SPU but so far
> have only had the spare time to implement the row operations but not
> the cloumns.

Are row transforms even useful on Cell? Both SSE2 and Altivec can run 
column/transpose/column faster than row/column.

--Loren Merritt

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