[x264-devel] x264 SSE2 optimizations cause segfaults in ffmpeg and mencoder

Dominik 'Rathann' Mierzejewski dominik at greysector.net
Thu Jan 10 19:31:43 CET 2008


On Thursday, 10 January 2008 at 19:19, Alexis Ballier wrote:
> On Thu, 10 Jan 2008 18:41:00 +0100
> Tomas Carnecky <tom at dbservice.com> wrote:
> 
> > Bernhard Rosenkränzer wrote:
> > > When trying to encode any video to H.264 using x264 with ffmpeg or
> > > mencoder on a Pentium Dual-Core processor, ffmpeg/mencoder
> > > segfaults with a backtrace ending in x264.
> > 
> > The backtrace would be nice to have, so somebody could fix the actual 
> > problem. Preferably a backtrace with debugging symbols.
> 
> This is probably an old issue with yasm & pic.
> 
> see:
> http://www.via.ecp.fr/via/ml/x264-devel/2007-06/msg00004.html
> 
> then:
> http://www.tortall.net/projects/yasm/ticket/114
> 
> to sum it up:
> build x264 with yasm>=0.6.2 or dont use pic.

Why not make x264's configure fail if it doesn't find yasm >= 0.6.2?

Regards,
R.

-- 
Fedora contributor http://fedoraproject.org/wiki/DominikMierzejewski
Livna contributor http://rpm.livna.org MPlayer developer http://mplayerhq.hu
"Faith manages."
        -- Delenn to Lennier in Babylon 5:"Confessions and Lamentations"



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