Values.MotionImageInsertionFramerateSourceFor motion overlays that don't have a built-in frame rate, specify the frame rate of the overlay in frames per second, as a fraction. For example, specify 24 fps as 24/1. The overlay frame rate doesn't need to match the frame rate of the underlying video.
type nonrec t = {framerateDenominator : int option;The bottom of the fraction that expresses your overlay frame rate. For example, if your frame rate is 24 fps, set this value to 1.
*)framerateNumerator : int option;The top of the fraction that expresses your overlay frame rate. For example, if your frame rate is 24 fps, set this value to 24.
*)}