           |    |    |    |    |    |stts|    |    | Decoding Time to Sample Box  |
            +----+----+----+----+----+----+----+----+------------------------------+
            |    |    |    |    |    |stsc|    |    | Sample To Chunk Box          |
            +----+----+----+----+----+----+----+----+------------------------------+
            |    |    |    |    |    |stsz|    |    | Sample Size Box              |
            +----+----+----+----+----+ or +----+----+------------------------------+
   