[MPlayer-dev-eng] Runtime CPU detection and fastmemcpy

Dominik Mierzejewski dominik at rangers.eu.org
Sun Apr 28 01:28:07 CEST 2002


On Sunday, 28 April 2002, Felix Buenemann wrote:
> On Saturday 27 April 2002 20:42, Dominik Mierzejewski wrote:
> > Hello list.
> > Having volunteered to maintain RedHat RPM, I'm trying to put together
> > a specfile that'll produce a package suitable for as many as possible.
> > So far I've been building only for myself.
> > One thing I'm not sure of, though. Is fastmemcpy capability also detected
> > at runtime?
> > Also, there's a problem with building against divx4linux, because you
> > can't make a package with that (well, I could provide the specfiles).
> > Is xvid an acceptable replacement? I've already made a package of it.
> probably libavcodec is enough, it's encoder has gotten very good.

So you're opting for a minimalist package that has a small number
of dependecies? That's fine by me. I'll make all optional features
disabled by default then (one will still be able to use them after
rebuilding the source package with certain commandline options).
Is that ok?

Also, I think the "runtime CPU detection" doesn't work properly, I've
compiled mplayer with every cpu-specific feature (i.e. mmx, mmx2, sse,
sse2, 3dnow, 3dnowex) enabled (--with-xxx) and I got signal 4 (invalid
instruction) upon playing any movie on my AMD Duron. Bug report coming
in soon.
 
-- 
"The Universe doesn't give you any points for doing things that are easy."
        -- Sheridan to Garibaldi in Babylon 5:"The Geometry of Shadows"
Dominik 'Rathann' Mierzejewski <rathann(at)rangers.eu.org>



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