The attached patch is my first SIMD code. It is more than 3x faster, so optimisations work. But experienced programmers may find some more improvement. I´m not really happy with the extra mov instructions needed in x86_32 for mrefs3 and prefs3 because of the register limitations. I tried a lot, but this was the only way I made it work. Since bwdif is based on yadif, I stole parts of the SIMD code from there. Also for learning how it works. Maybe I should add Michael and Daniel to the licence? I will write SMID code for higher bitrates later, when this patch is approved. Please comment.
0001-vf_bwdif-add-x86-SIMD-for-8bit.patch
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