What is your source MOV ? what does mediainfo say about it?
The problem with DirectShowSource() , is it relies on your system installed codecs . So computer A might return something different than computer B. It can be quite unreliable , and has all sorts of problems with seeking
What does info() say about what DirectShowSource() is returning ?
Code:
DirectShowSource("Y:\test.MOV", audio=false)
Info()
It might be as simple as adding ConvertToYV12(matrix="rec709") , but it might be the wrong thing to do depending on what the source is
Code:
DirectShowSource("Y:\test.MOV", audio=false)
ConvertToYV12(matrix="rec709")
GradFun3( thr=0.25)