kMovieMediaLoop
An 8-byte unsigned integer that indicates how the embedded movie should loop.
Overview
This atom is only used if the TimeBase of the embedded movie is not dependent on the container movie. If this atom contains a 0, or if this atom is not present, the embedded movie will not loop. If this atom contains a value of 1, the embedded movie loops normally — that is, when it reaches the end it loops back to the beginning. If this atom contains a value of 2, the embedded movie uses palindromic looping. All other values are reserved.