control a frame by frame reading

Hello,

I'd like to control a short video (35 frames) backward and forward, at a different speed, with a counter object.

I first used a QuickTime window, but the read wasn't very smooth. So I decided to get all the frames of the video, and to control a frame by frame reading, not with quicktime, but by using a matrix.

I am not very sure of the best way to realize it, so it would be a great help if somebody could advice me.

Thank you, Frederic.