v4
- Fix the use of an uninitialised variable in Recalculate (kind of important).
- Add some more SAD functions. Block sizes of 8x4, 16x2, 32x16, and 32x32 should now be just as fast as in the original Avisynth plugin.
- Allow YUV422P8 input. The filters only needed to accept such clips, because the required code was already there.