[Vorbis] Problem with CPU usage on Playstation 2 when using Ogg Vorbis.

[Daniel Collin]

Hi,

Sometime ago i finished a port of Ogg Vorbis to Playstation 2.
The code is working just fine and the music sounds like it should, but 
there is one problem.
I get CPU usage that looks like this (when i say frames i mean actually 
rendering frames on the
Playstations 2 and you have 50 or 60 frames per second)

cpu usage:        ~100%         ~0%         ~0%          0%         ~100%
current frame:        0                1             2               
3                4

This indicates that the Ogg Vorbis code processes a bit a head and on 
frame 0 decodes
data for frame 1-3 also and just "gives" that data back for the 
following frames.

What this means is that i will get frame drops every 4th frame (as i 
need to use the main CPU
to do other things than just playing music)

So i wonder if its possible to get a more even cpu usage across each 
update? lets say
it will take 25% each time instead of the pattern above?

If anyone has any pointers that would help me out i would be very thankful.

Thanks

Daniel