| 摘要 |
The present invention restricts the arrangement of parameter sets to enable a stream to be easily decoded on the basis of random accesses. In a stream including a plurality of first units each containing unit identification information and image compressed data as well as a reference target unit information, and a plurality of second units each containing unit identification information and a parameter set referenced in order to decode the image compressed data, a third unit is defined which is obtained by partitioning the stream. The reference target unit information contained in the first unit in the third unit is set only for the identification information on the second unit present in the third unit.
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