[FFmpeg-devel] [PATCH 0/2] Fix strict aliasing violations in AAC and AC3 parsers

Jason Garrett-Glaser darkshikari
Mon Dec 15 03:10:19 CET 2008

> am i interperting this correctly, that the code is hugely faster with
> -fno-strict-aliasing
> ?
> and iam of course in favor of the faster variant for h264.c

Yes, but it makes absolutely no sense why it would be faster--the
oprofile says even the asm functions are faster which of course makes
no sense at all.

Others in #ffmpeg-devel have reported small speed increases or
decreases, but nothing like what I posted.

"time" confirms my numbers, so the benchmark stat is not wrong, but I
cannot offer an explanation for my benchmark results.

Dark Shikari

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