
            |    |    |    |    |    |stsd|    |    | Sample Description Box       |
            +----+----+----+----+----+----+----+----+------------------------------+
            |    |    |    |    |    |    |Opus|    | OpusSampleEntry              |
            +----+----+----+----+----+----+----+----+------------------------------+
            |    |    |    |    |    |    |    |dOps| Opus Specific Box            |
            +----+----+----+----+----+----+----+----+------------------------------+
 