[Ffmpeg-devel] int vs. float: Hard Numbers

Måns Rullgård mru
Sat May 21 00:55:01 CEST 2005

Diego Biurrun <diego at biurrun.de> writes:

> On Fri, May 20, 2005 at 11:55:53PM +0200, Luca Barbato wrote:
>> Mike Melanson wrote:
>> > 
>> >     It's worth noting that this type of CPU is at the heart of VIA's
>> > mini-ITX boards. Do you know one of the main uses for this form factor?
>> > Media center PCs.
>> There are better suited cpu... Like PPC...
> For multimedia?  Not really.  Many codecs do not work since you cannot
> load binary DLLs and a few others have horrible performance like AC3.  I
> cannot watch DVDs on my 1.5GHz G4 since liba52 takes around 90% CPU...

With properly optimized code, the G5 is much faster than anything x86.
I can't believe your claim about the cpu usage by liba52.  DVDs are
just about watchable on my 533MHz Alpha PCA56, which doesn't even have
proper SIMD instructions, and definitely no specific optimizations in

M?ns Rullg?rd
mru at inprovide.com

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