[icecast] OT: OGG in the mainstream

Arc arc at indymedia.org
Tue Jul 15 06:40:05 UTC 2003

On Tue, Jul 15, 2003 at 11:06:03AM +1200, Ross Levis wrote:
> Mark Casey wrote:
> > I think when the real-time cbr encoding issues are sorted 
> > Vorbis (this is my experience with oddcast dsp, winamp and 
> > icecast 2 win32, big cpu hog) will start gaining more ground, 
> I can't use the managed bitrate option in OddCast on my K6II-500 CPU!
> (Overclocked to 525, WinXP Pro,192MB RAM).  I would like to.  Normal VBR
> uses about 90% CPU.  This seems too high.  Perhaps some work will be
> done on reducing CPU requirements and/or utilizing some CPU extensions
> in the future.

That's funny, because we're doing it all the time with Pentium 2's
running at 233mhz.

44100 samplerate, mono, 56k VBR.  ices2. pretty basic setup. no skips.

Prehaps it's an issue with your CPU having poor floating point, or
prehaps its OddCast, or prehaps it was compiled without CPU
optimisations, etc.  But we've been doing it for quite some time quite
successfully with ices2.

furthermore, with my K62 450mhz I've successfully done 44100/stereo
encoding at 128k with ices2, it uses about 90% of the cpu but it's
doable.  Dropping to mono makes it much faster, dropping the bitrate
(56k vs 128k) makes it even faster.  Dropping to 22050 samplerate makes
it dramatically faster.  

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