[Theora-dev] Directshow filters 0.64.7878

Alen Ladavac alenl-ml at croteam.com
Tue Oct 5 07:51:29 PDT 2004

> Thanks... the 0.64 release is pretty good now for most people.
Yes, that's what we tested here.

> I only did the SSE/2 versions because my compiler is magic and can target
> them without the need for special instructions or intrinsics (no doubt
> done optimisations would get a much better speed up) :) I don't have that
> kind of spare time on my hands to optimise 100 kLOC by hand :)

Hehe... didn't even think you would do it by yourself. :)

> Doesn't that processor support SSE1 ? I thought all the athlon XP's did ?
Yes it does, but SSE version doesn't seem to speed up decoding at all (at
least significantly for me to notice). I guess it only helps with encoding.

> I think there is some hand-done MMX optimisations someone did a patch for
> theora a while back... but i'm not sure how stable/correct they are or if
> they will build in VC or not.

Yes, I was thinking about that one. I haven't been following the SVN
changes, so I don't know what is the status. I was hoping it was integrated


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