METHOD FOR TRANSMITTING MEDIA DATA INTERLINKED WITH COMPOSITION INFORMATION AND TRANSMISSION CHARACTERISTICS INFORMATION VIA A HETEROGENEOUS IP NETWORK

摘要

The present invention relates to a method for transmitting media data via a heterogeneous IP network, in which temporal or spatial relationships between MMT assets and transmission characteristics of MMT assets are formed into separate messages in composing MMT assets, thus efficiently transmitting media streaming.

主权项

1. A method of transporting coded media data in a system for transporting coded media fragment data via a heterogeneous IP network, the method comprising:
receiving a media unit (MU) having a format independent on a particular media codec from a media codec layer; generating an MMT asset by encapsulating the generated media unit; generating an MMT package by encapsulating the generated MMT asset; generating an MMT payload format upon receiving the generated MMT package; and generating an MMT transport packet upon receiving the generated MMT payload format, wherein the MMT asset includes an MMT asset indicator as an index allowing for the MMT asset to be discriminated from a different MMT asset and an MMT composition information (CI) indicator storing an index of MMT CI referred to by the MMT asset.