[FFmpeg-devel] [PATCH] G.729A (now fixed-point) decoder

[Michael Niedermayer]

On Wed, Mar 19, 2008 at 08:34:56PM +0600, Vladimir Voroshilov wrote:
> On Wed, Mar 19, 2008 at 8:23 PM, Michael Niedermayer <michaelni at gmx.at> wrote:
> > On Wed, Mar 19, 2008 at 07:27:51PM +0600, Vladimir Voroshilov wrote:
> >  [...]
> >
> > > >  And yes there are issues except spelling, for example why is it not
> >  > >  binary identical? Is it either * bugs or * it would be slow/messy/complex?
> >  >
> >  > Small quick example:
> >  > reference code uses L_shr() routine everywhere instead of ">>"
> >  > L_shr(-1)==0, L_shr(-3)==2
> >
> >  L_shr takes 2 parameters
> >
> 
> Yes, my fault :)
> I meant L_shr(-1,1) and L_shr(-3,1) there

L_shr(a,b) == a / (1<<b)

gcc will simplify it IIRC :)

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Good people do not need laws to tell them to act responsibly, while bad
people will find a way around the laws. -- Plato
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