memo
ここが参考になるっぽい
AviSynthCUDAFilters/build_help.txt at master · pinterf/AviSynthCUDAFilters
最初にNVIDIAのCUDA ToolkitとVS2019を入れておく
CUDA Toolkit 11.2 Update 1 Downloads | NVIDIA Developer
AviSynth/AviSynthPlus: AviSynth with improvements
はCMakeFileをVS2019に食わせてENABLE_CUDAフラグ立ててビルド