[FFmpeg-devel] [RFC] support encrypted asf
Mon Oct 8 13:16:50 CEST 2007
On Mon, Oct 08, 2007 at 08:42:56AM +0200, Reimar D?ffinger wrote:
> since it was such an interesting problem I could not stop myself from
> optimizing the inverse() function.
> It probably is easier to understand without algebra knowledge, but a
> bit more obfuscated for those with.
> On x86 the speed difference is only about 10%, multiplication is just
> too fast on those ;-).
> Here it is (tell me if you'd prefer an updated complete patch instead):
Have you tested its speed against other known methods (I remember seeing at
least two - http://aggregate.org/MAGIC/ and in fortune files).
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