Re: [MPlayer-users] Segmentation fault in ff_fdct_sse2

[mslama at email.cz]

> ------------ Původní zpráva ------------
> Od: Guillaume POIRIER <poirierg at gmail.com>
> Předmět: Re: [MPlayer-users] Segmentation fault in ff_fdct_sse2
> Datum: 05.3.2007 16:33:38
> ----------------------------------------
> Hi,
> 
> On 3/5/07, mslama at email.cz <mslama at email.cz> wrote:
> > >
> > > Looks like an unaligned mem access to me.
> > >
> > > Please try attached patch. It's not a proper fix I think, but It's the
> > > best I could do within 2min of free time ;-)
> > >
> >
> > Thanks. It does not crash now. Shall I use this patch or will there be
> 'better' patch? :)
> 
> Yeah, use the proper patch when I write it... until then ..... ;-)
> 
> As I said, that patch was only meant to narrow down where the problem lies.
> 
> I'm quite surprised that the problem didn't show up before. That code
> has been there for a while.
> 
> Could you please try compiling libavcodec/i386/fdct_mmx.c with
> different levels of optimization? -00, 01, 02, 03?
> 

Yes. Just tell me how to set it up.

> Also, did you play with memory-alignment related GCC options? That
> could be the problel...

No everything is default. I just run ./configure --enable-largefiles and make.

Marek.