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

[Tomas Carnecky]

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.

> The attached patch fixes it by turning off the problematic functions and 
> falling back to the generic ones - but of course that's not quite the right 
> fix for the problem.

tom