fturn.
What
Fast implementation of TurnLeft(), TurnRight() and Turn180() AviSynth functions.
How
FTurnLeft(chroma=true, mt=true)
FTurnRight(chroma=true, mt=true)
FTurn180(chroma=true)
Why
Great performance improvements for antialiasing scripts like maa. You can disable chroma processing in case you don't need it (almost often in antialiasing scripts).
Requirements
SSE2 is required. The plugin is also optimized for SSSE3 so you can assume slightly better performance if your CPU has it.
License
This project is licensed under the MIT license. Binaries are GPL v2 because if I understand licensing stuff right (please tell me if I don't) they must be.