[FFmpeg-devel] Proposed patch

Michael Niedermayer michaelni
Sat Aug 4 04:55:37 CEST 2007


Hi

On Fri, Aug 03, 2007 at 06:55:15PM -0700, Roman Shaposhnick wrote:
> On Sat, 2007-08-04 at 02:40 +0200, Michael Niedermayer wrote:
> > Hi
> > 
> > On Thu, Aug 02, 2007 at 08:22:02PM -0700, Roman Shaposhnik wrote:
> > > Guys,
> > > 
> > > two questions: 
> > >    1. Does an attached patch look ok?
> > 
> > this changes one of the most speed critical things in lavc so this needs
> > extensive benchmarks, x86+ppc mpeg4 decoding at minimum
> 
>   I can cover x86,x64 and SPARC. Would that be enough? Also, I can
> actually look at assembly generated before and after on these arcs.
> I actually expect it to be identical. 

i dont expect it to be identical on non-x86 :)


> 
>   Anyway, if you consider ppc to be a critical one to benchmark on,
> I would need somebody to do it for me.  

well, if noone steps forward to benchmark it on ppc then ill assume that
there are no ppc users who care about a possible 50% speedloss 
(or speedgain...)

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

I know you won't believe me, but the highest form of Human Excellence is
to question oneself and others. -- Socrates
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