[vorbis-dev] vorbis on playstation 2

Nicolas Pitre nico at cam.org
Wed Feb 5 14:58:21 PST 2003

On Wed, 5 Feb 2003, David Etherton wrote:

> > Then you should use the Tremor source.
> Are you saying that Tremor is going to be faster than a stock vorbis decoder
> on a modern machine with both good integer and floating-point performance?

It should be as fast.

> I guess I should have been clearer -- I'm not worried about single-precision
> floating-point math, but all double-precision floating-point math is
> emulated on the PS2.
> Perhaps having ogg_pi, ogg_sin, ogg_tan, ogg_log, etc as a wrapper layer
> would be useful.  I'm well aware that PC platforms don't have much of an
> additional cost associated with double-precision arithmetic.

Why bother if Tremor doesn't use those functions at all?

> Presumably since it's possible to write a fixed-point decoder, a
> single-precision decoder should work just fine as well.

It should, but would be redundant.


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