Communication apparatus, communication data generation method, and communication data processing method

A communication apparatus, comprising:

• a communication unit that receives encoded data storage packets transmitted by a transmission apparatus;
• and
• a data processing unit that receives the packets received by the communication unit, and performs a process,
• wherein each of the encoded data storage packets received by the communication unit is a packet storing NAL unit fragments obtained by further dividing a NAL unit configuring a group of pictures (GOP) serving as a processing unit of the encoded data, the packet including in-NAL unit position identification information for identifying whether the stored NAL unit fragment is data located at a head position, an intermediate position, or a tail position of the NAL unit before the division and arrangement information of each NAL unit as additional information, and
• the data processing unit reconstructs a plurality of NAL units from the data stored in the plurality of received packets in a divided manner with reference to the additional information and performs a process of rearranging the plurality of reconstructed NAL units.

A communication data processing method performed in a data reception apparatus, comprising:

• a step of receiving, by a communication unit, encoded data storage packets transmitted by a transmission apparatus;
• and
• a data processing step of receiving, by a data processing unit, the packets received by the communication unit and performing a process,
• wherein each of the encoded data storage packets received by the communication unit is a packet storing NAL unit fragments obtained by further dividing a NAL unit configuring a group of pictures (GOP) serving as a processing unit of the encoded data, the packet including in-NAL unit position identification information for identifying whether the stored NAL unit fragment is data located at a head position, an intermediate position, or a tail position of the NAL unit before the division and arrangement information of each NAL unit as additional information, and
• reconstructing, by the data processing unit, a plurality of NAL units from the data stored in the plurality of received packets in a divided manner with reference to the additional information and performing a process of rearranging the plurality of reconstructed NAL units.