| 摘要 |
Provided is a multiplexer which can reliably analyze side information which a decoder in the multiplexer can fundamentally identify. A multiplexer ( 10 a) generates data by assigning different packet identifiers to (i) one of coded video data and coded audio data, and (ii) table data regarding the coded data, and packet-multiplexing the coded data and the table data. The multiplexer ( 10 a) includes: a sub-descriptor generating unit ( 14 ) which generates sub-descriptors, each of which includes a sub-tag value representing a type of side information representing a parameter for decoding the coded data, and the side information; a descriptor generating unit ( 11 ) which generates a main descriptor including the sub-descriptors generated by the sub-descriptor generating unit ( 14 ), and a main tag value representing a set of the sub-descriptors; and a table generating unit ( 12 ) which generates the table data, by associating the main descriptor generated by the descriptor generating unit ( 11 ), with the packet identifier of the coded data. The sub-descriptor generating unit ( 11 ) outputs the sub-descriptors in an order defined by a predetermined storage rule.
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