Patent ID: 9635394
Date: 2017-04-25
CPC Classifications: H04N

Claim:
1. An apparatus for transmitting an MMT packet in an MMT (MPEG Media Transport) system, the apparatus comprising: an asset generator that generates an MMT asset by performing encapsulation based on a Media Processing Unit (MPU) generated based on a media Access Unit (AU); a composition information generator that generates MMT Composition Information (MMT-CI) on the MMT asset; a packetizer that generates an MMT packet by packetizing the MMT asset and the MMT-CI; and a transmitter that transmits the generated MMT packet to a receiving side, wherein the MMT-CI contains dependency information of a media element on at least one other media element, wherein the MMT-CI includes isDependent and depID attributes, and the isDependent attribute indicates whether a media element depends on another media element, and the depID attribute is a list of identifications of media element on which a current media element depends on, and wherein each of the MMT asset and the at least one other MMT asset is mapped to one of SVC (Scalable Video Coding) layers including a first layer and a second layer and wherein a first asset of the first layer refer to, a second asset of the second to be decoded.