Decoding device, reception device, transmission device, transmission/reception system, decoding method, and storage medium having decoding program stored therein

Abstract

A method for receiving data, the method includes receiving a plurality of assets, each asset including a Media Processing Unit (MPU); receiving a packet identification for each asset among the plurality of assets via respective Moving Picture Experts Group (MPEG) Media Transport Protocol (MMTP) packets; receiving a time stamp information referencing UTC (Coordinated Universal Time) in the MPU, the time stamp information representing a presentation time of a first access unit in presentation order in the MPU; and receiving a leap second insertion flag indicating when a leap second will be inserted, and receiving a leap second deletion flag indicating when a leap second will be deleted, the leap second insertion flag and the leap second deletion flag indicating a presence of a leap second event, wherein the first access unit in the MPU is presented at the time signaled in reference to the time stamp information.

What is claimed is: 
     
         1 . A method for receiving data, the method comprising:
 receiving a packet identification of a Moving Picture Experts Group (MPEG) Media Transport Protocol (MMTP) packet, the packet identification identifying the MMTP packet, the MMTP packet including at least a part of a Media Processing Unit (MPU);   receiving a sequence number information, the sequence number information identifying the MPU;   receiving a time stamp information, the time stamp information referencing UTC (Coordinated Universal Time);   receiving a leap second event information, the leap second event information indicating a leap second event;   wherein
 the MPU includes a video asset and/or an audio asset, 
 a timing of presenting video and audio is based on the leap second event information, 
 the video asset and the audio asset are delivered on a plurality of transmission paths, 
 the plurality of transmission paths include a communication line and radio waves. 
   
     
     
         2 . The method of  claim 1 , wherein the video asset is delivered to a first buffer based on the packet identification of the video asset, the audio asset is delivered to a second buffer based on the packet identification of the audio asset, and a control message is delivered to a third buffer. 
     
     
         3 . The method of  claim 2 , wherein the control message comprises information used to control the receiving. 
     
     
         4 . A receiving device for receiving data, the receiving device comprising:
 a receiver configured to:
 receive a packet identification of a Moving Picture Experts Group (MPEG) Media Transport Protocol (MMTP) packet, the packet identification identifying the MMTP packet, the MMTP packet including at least a part of a Media Processing Unit (MPU); 
 receive a sequence number information, the sequence number information identifying the MPU; 
 receive a time stamp information, the time stamp information referencing UTC (Coordinated Universal Time); 
 receive a leap second event information, the leap second event information indicating a leap second event; 
   wherein
 the MPU includes a video asset and/or an audio asset, 
 a timing of presenting video and audio is based on the leap second event information, 
 the video asset and the audio asset are delivered on a plurality of transmission paths, 
 the plurality of transmission paths include a communication line and radio waves. 
   
     
     
         5 . The receiving device of  claim 4 , wherein the video asset is delivered to a first buffer based on the packet identification of the video asset, the audio asset is delivered to a second buffer based on the packet identification of the audio asset, and a control message is delivered to a third buffer. 
     
     
         6 . The receiving device of  claim 5 , wherein the control message comprises information used to control the receiving. 
     
     
         7 . A non-transitory computer readable medium storing a program which, when executed, causes a computer to execute:
 receiving a packet identification of a Moving Picture Experts Group (MPEG) Media Transport Protocol (MMTP) packet, the packet identification identifying the MMTP packet, the MMTP packet including at least a part of a Media Processing Unit (MPU);   receiving a sequence number information, the sequence number information identifying the MPU;   receiving a time stamp information, the time stamp information referencing UTC (Coordinated Universal Time);   receiving a leap second event information, the leap second event information indicating a leap second event;   wherein
 the MPU includes a video asset and/or an audio asset, 
 a timing of presenting video and audio is based on the leap second event information, 
 the video asset and the audio asset are delivered on a plurality of transmission paths, 
 the plurality of transmission paths include a communication line and radio waves. 
   
     
     
         8 . The non-transitory computer readable medium of  claim 7 , wherein the video asset is delivered to a first buffer based on the packet identification of the video asset, the audio asset is delivered to a second buffer based on the packet identification of the audio asset, and a control message is delivered to a third buffer. 
     
     
         9 . The non-transitory computer readable medium of  claim 8 , wherein the control message comprises information used to control the receiving.