[MPlayer-dev-eng] [PATCH] SSE2 optimizations for libmpeg2

[Michael Niedermayer]

On Tue, Feb 19, 2008 at 09:46:24AM +0100, Diego Biurrun wrote:
> On Tue, Feb 19, 2008 at 09:41:52AM +0100, Diego Biurrun wrote:
> > On Sun, Feb 17, 2008 at 10:26:07AM -0700, Loren Merritt wrote:
> > > On Sat, 16 Feb 2008, Diego Biurrun wrote:
> > >
> > >> I found this patch on the libmpeg2 mailing list, here it is, slightly
> > >> adapted and cleaned up.  I could only test compilation without SSE2 as I
> > >> don't have a SSE2 processor.  I'd be happy to hear about test results
> > >> and benchmarks.
> > >
> > > Cpu detection is broken, attached patch fixes it (to be applied on top of 
> > > the previous patch).
> > 
> > Here is an updated single patch that also fixes illegal identifiers and
> > includes some cosmetical changes.
> 
> And here is a version without the (apparently ineffectual) motion
> compensation bits.

If someone wants to port this to lavc (under HAVE_GPL) that would be welcome!

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

Asymptotically faster algorithms should always be preferred if you have
asymptotical amounts of data
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