Adding mp4 video to psychopy

[wakecarter]

Try changing the movie opacity to 1.

Can't play movie on psychopy

I think I know the problem - when we updated to use better methods for handling colour, it opened up the possibility of handling opacity as None (allowing e.g. different opacities for the fill and outline of a shape), but I missed a call in MovieStim to opacity which doesn’t like None. If you change opacity for your movie stim to be 1 it should fix this error! I’ll also put in a bug fix for the next release to handle None properly.

However, see also.

AttributeError: 'MovieStim3' object has no attribute '_texID'

I found my way to get away with it: (1) Simply just used Windows pc instead of Mac, the problem solved. (2) In Mac, the MovieStim3 function works well in the standalone Psychopy.