Patent ID: 11972741
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A decoding method, performed by a decoding device, comprising:
receiving a system stream including a coded video and a first parameter, the first parameter indicating first transfer characteristics provided to decode the coded video;
reading a first flag included in the system stream, the first flag indicating whether a second parameter is provided in the system stream to define second transfer characteristics;
decoding the coded video with the second transfer characteristics if the second parameter is provided in the system stream; and
decoding the coded video with the first transfer characteristics if the second parameter is not provided in the system stream, wherein
each of the first transfer characteristics and the second transfer characteristics relates to optical-electro conversion or electro-optical conversion,
the system stream is generated according to an MPEG Media Transport (MMT) scheme,
the second parameter is provided per Media Processing Unit (MPU) which is defined in the MMT scheme and which is a random access unit,
the first flag is provided in the system stream per program, each of a plurality of programs including a plurality of MPUs, and
when the first flag for a program included in the plurality of programs indicates that the second parameter is provided in the system stream, a coded video corresponding to an MPU from among the plurality of MPUs included in the program is decoded with second transfer characteristics indicated by a second parameter provided for the MPU corresponding to the coded video.