[FFmpeg-devel] manually hacked configure options increase h264 decoding speed significantly

Loren Merritt lorenm at u.washington.edu
Thu Oct 20 21:30:54 CEST 2011


On Thu, 20 Oct 2011, Reimar Döffinger wrote:
>
> Hm, with all those signal() calls in there main is no longer a leaf
> function and thus -fomit-frame-pointer does not work I think.

-fomit-frame-pointer works in non-leaf functions.
It breaks specifically in non-leaf main() on x86_32, because main is
__attribute__((force_align_arg_pointer)).

--Loren Merritt


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