Is there a feature that would let the user have full control of the way an animated image sequence or video file plays? I would need the user to be able to scrub through the video (or sequence) back and forth smoothly. For instance, if the user slides their finger to the right, the sequence progresses forward at the rate of their finger. If he slides to the left the sequence progresses backwards. Also would it allow for loopabilty? For instance, if the sequence is seamlessly loopable, the user can keep sliding in one direction and progress through the sequence in a loop.