Admittedly I don't use video in Processing, but I don't see why you wouldn't be able to rotate it. Here's a sketch that rotates a rect(), try replacing the rect() with your video:
void setup() {
size(600, 600);
}
void draw() {
background(255);
translate(width/2, height/2);
rotate(radians(frameCount));
// Replace this with your video
rect(-160, -120, 320, 240);
}
Answers
Sorry, but I can't parse your question in a way that makes any sense to me. Are you trying to play a movie, but spin it while it's playing?
I think he/she wants to make the movie play rotated. Example: upside down or 90 degrees, either way, same concept I guess.
Admittedly I don't use video in Processing, but I don't see why you wouldn't be able to rotate it. Here's a sketch that rotates a rect(), try replacing the rect() with your video: