A METHOD OF TRANSPORTING MEDIA DATA COUPLED WITH COMPOSITION INFORMATION AND TRANSPORT CHARACTERISTICS THROUGH HETEROGENEOUS IP NETWORK

摘要

PURPOSE: A media data transmission method through a heterogeneous IP network is provided to transmit media streaming by configuring temporal and spatial relations between MMT assets as a separate message in a MMT(MPEG Media Transport Asset) asset configuration and to transmit a transmission characteristic of an MMT asset by configuring a separate message. CONSTITUTION: An encoded media data transmission method includes a stage(S610) receiving MU(Media Unit) having an independent format in a specific media CODEC from a media CODEC layer, a stage generating an MMT asset by encapsulating the generated MU(S620), a stage generating an MMT package by encapsulating the generated MMT asset, a stage generating an MMT payload format by receiving the generated MMT package and a stage generating an MMT transmission packet by receiving the generated MMT payload format and the MMT asset includes an MMT asset indicator, being an index, classifying one MMT asset with the other MMT asset and an MMT composition information indicator storing an index of an MMT composition information in which the MMT asset refers. [Reference numerals] (AA) Start; (BB) End; (S610) Receiving an MU(Media Unit) having an independent format in a specific media CODEC from a media CODEC layer; (S620) Generating an MMT asset by encapsulating the MU; (S630) Generating an MMT package by encapsulating the MMT asset; (S640) Generating an MMT payload format by receiving the MMT package; (S650) Generating an MMT transport packet by receiving the MMT payload format;