[vorbis-dev] Optimisations

David A. Gatwood dgatwood at deepspace.mklinux.org
Wed Nov 15 17:42:56 PST 2000



On Thu, 16 Nov 2000, Jason Hecker wrote:

> >version. Note, that the filters and fast transforms are not the most 
> >time-critical,
> >however.
> 
> I guess, but they would be the easiest to implement first.  Apart from the 
> x86 vector stuff, what other CPUs that OggVorbis runs on have SIMD 
> operations that would need hand coding?

PowerPC 74xx (G4/Altivec) -- but not in assembly.  There are C/C++
extensions in gcc (or will be... not sure if they're out in public yet) to
make this easier.

David

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