Decoding apparatus, demultiplexing apparatus, decoding method, and demultiplexing method

A reception apparatus comprising:

• a decoding apparatus;
• and
• a demultiplexing apparatus,
• the decoding apparatus including:
• a receiver, which in operation, receives a transfer frame storing a plurality of second transfer units, each second transfer unit of the plurality of second transfer units containing one or more first transfer units obtained by multiplexing content;
• and
• a decoder, which in operation, acquires a plurality of first transfer units by decoding the transfer frame, the decoder outputting the plurality of first transfer units to the demultiplexing apparatus,
• wherein a heading first transfer unit positioned at a head within a heading second transfer unit, which is positioned at a head within the transfer frame, contains reference clock information, the heading first transfer unit being included among the plurality of first transfer units and the heading second transfer unit being included among the plurality of second transfer units, and
• the decoder, in operation, generates information for identifying the heading first transfer unit and outputs the information to the demultiplexing apparatus,
• the demultiplexing apparatus, which in operation, acquires the plurality of first transfer units from the decoding apparatus, and
• the demultiplexing apparatus including a demultiplexer, which in operation, acquires the content by demultiplexing the plurality of first transfer units,
• wherein when a first transfer unit of plurality of first transfer units includes reference clock information, management information indicates the presence of the reference clock information, and
• the demultiplexer identifies the first transfer unit among the plurality of first transfer units containing the reference clock information based on the management information and acquires the reference clock information from the first transfer unit.