ISO/IEC DIS 23008-1

Description / Abstract: This part of ISO/IEC 23008 specifies MPEG Media Transport (MMT), a single encapsulation format, delivery protocol, signaling messages and a method describing composition information for delivery of multimedia services over packet-based heterogeneous networks. Types of packet-based networks supported by this specification include bidirectional networks such as IP networks and unidirectional networks such as digital broadcast networks regardless of their use of IP. It is required for entities to be synchronized with UTC, although the means by which this synchronization is achieved is outside the scope of this specification.

The technologies for encapsulation function specify the logical model and its associated encapsulation format for timed and non-timed media content. The encapsulation format includes a self-contained encapsulation structure enabling independent consumption of media data, which hides codec specific details from the delivery function.

The technologies for delivery function specify the payload format agnostic to media and codec types, which allows fragmentation and aggregation of content encapsulated with this specification for delivery using packet oriented streaming protocols; it also provides an application layer transport protocol, which allows multiplexing, reliable delivery of media content.

The technologies for signaling function specify the format of signaling messages carrying information for media content consumption such as specific location and delivery condition of media content.

The technologies for composition function specify the method associating content encapsulated with the format defined in this specification to the presentation and the method representing synchronization between timed and non-timed content.