[Libav-user] TR: Need help, libavcodec crash during init

Carl Eugen Hoyos cehoyos at ag.or.at
Tue May 3 11:40:44 CEST 2016

Heiner Mueller <ffmpeg at ...> writes:

> >> just a wild guess - i saw some 'SSE' / 'MMX' etc statements in the
> >> source, maybe the crashing machines do not support the cpu feature
> >> set you used to compile libav.
> >
> > Apple has never released x86 hardware without SSE support
> > and MMX is a subset of SSE.
> Yes, but you can compile with eg. -msse4.1 and it will not run on an 
> older Core2 Duo.

This is still an extremely unlikely explanation for the original 
issue (padding or alignment are the likely causes) but the 
disassembly would tell us immediately.

Carl Eugen

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