[FFmpeg-devel] [PATCH] RoQ video encoder, take 2

[Michael Niedermayer]

Hi

On Sun, May 27, 2007 at 06:23:11PM +0200, Reimar D?ffinger wrote:
> Hello,
> On Sun, May 27, 2007 at 11:10:30AM -0400, Dave Dodge wrote:
> > On Sun, May 27, 2007 at 02:20:30PM +0200, matthieu castet wrote:
> > > > Unless there is a special reason not to, try using just "int" instead of
> > > > "int8_t".
> > > > 
> > > Yes, and for the question why, there are some architecture (like arm) 
> > > where everything is 32 bits. Using int8_t force the compiler to add 
> > > extra instructions to emulate 8 bits operations (overflow, ...).
> > 
> > If you want to indicate that this is an 8-bit value, another option
> > would be to use int_fast8_t.  That should select the "fastest" integer
> > that can hold at least 8 bits.
> 
> I disagree, the int_fast*_t types are useless, they rarely are related
> to reality. E.g. int_fast8_t on x86 is 8 bit, but that will be significantly
> slower when used as e.g. array index. Even if not it won't really be any

submit a bugreport to the responsible red^H^H^Hgnu toolchain devels

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

Why not whip the teacher when the pupil misbehaves? -- Diogenes of Sinope
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