[FFmpeg-devel] [PATCH] update doc/optimization.txt

Michael Niedermayer michaelni
Mon Sep 20 19:22:33 CEST 2010


On Tue, Sep 21, 2010 at 01:23:24AM +1000, Peter Ross wrote:
> On Mon, Sep 20, 2010 at 03:31:31PM +0200, Michael Niedermayer wrote:
> > On Fri, Sep 17, 2010 at 03:53:45PM -0400, Ronald S. Bultje wrote:
> > > Hi,
> > > 
> > > On Fri, Sep 17, 2010 at 2:49 PM, Michael Niedermayer <michaelni at gmx.at> wrote:
> > > > On Fri, Sep 17, 2010 at 06:23:16PM +0100, M?ns Rullg?rd wrote:
> > > >> "Ronald S. Bultje" <rsbultje at gmail.com> writes:
> > > >>
> > > >> > Hi,
> > > >> >
> > > >> > $subj, fixes a typo and mentions yasm.
> > > >> >
> > > >> > I could word it stronger ("if you write new code, yasm is preferred
> > > >> > for non-inlined functions") if we can agree on that (which I don't
> > > >> > think we do yet).
> > > >>
> > > >> Does anyone who actually writes any asm nowadays disagree?
> > > >
> > > > i dont know, but the one maintaining the x86 asm does and the project
> > > > leader disagrees too
> > > 
> > > So is the patch as posted ok then?
> > 
> > ive no oppinon on this it feels a bit moving toward inconsistent asm mix
> > though
> 
> FWIW:
> 
> Xvid uses nasm/yasm to provide fast routines across gcc and msvc and friends.
> 
> The decision to was made during the Instruction Set War. Back then msvc6 did
> not support the latest opcodes.

and i remember suggesting that ffmpeg used nasm too so that code could be
shared with xvid but people back then where against it

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

The misfortune of the wise is better than the prosperity of the fool.
-- Epicurus
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