[vorbis] Windows XP and MP3

[Merijn Vogel]

[snip]
> 
> This is too _small_ a difference to be realistic.
> > P200, and Mp3 took ~20-22% where Ogg was ~24-25%.  Both were in Win98.
> These numbers are _way_ too high for a 200 MHz cpu, even if it is a P5.
> 
> > In Linux, I tested "mpg123 -t" vs. "ogg123 -d null" using the time program,
> > and mpg123 was twice as fast as ogg123 at decoding two same-length files.
> This sounds about right.

> > I guess that your results with Mp3 vary with which decoder you use.  I once
> Sure. And version of the decoder, and compiler and compiler flags used, etc.

It costs 66% for my poor old dualP100 (per cpu) to decode 160kbit oggfiles.
Maybe there is some overhead packed in there while sending it to the
soundcard, but I really thing that is not the hard part.

I use the latest ogg123, and libraries (well, somewhere last week's
nightly.) If this is way too high, what could be possibly wrong ?

It costs me 30% approx to decode 128kbit mp3, though. 

So a difference factor of 2 is recognizable.

(yes, I am glad I have 2 P75 (overclocked 100) processors in this box, one
for X, one for ogg ;p)

-- Merijn

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