ISO/IEC 23008-1:2017 信息技术 在混杂环境中的高效编码和媒体传递 第1部分：MPEG媒体传输（MMT）

标准编号：ISO/IEC 23008-1:2017

中文名称：信息技术 在混杂环境中的高效编码和媒体传递 第1部分：MPEG媒体传输（MMT）

英文名称：Information technology — High efficiency coding and media delivery in heterogeneous environments — Part 1: MPEG media transport (MMT)

发布日期：2017-08

标准范围

ISO/IEC 23008-1:20 17规定了MPEG媒体传输(MMT)技术，其包括用于在用于多媒体服务的异构分组交换网络上传输和传递多媒体数据的单一封装格式、传递协议和信令消息。本文档支持的分组交换网络的类型包括双向网络，例如因特网协议(IP)网络和单向网络，例如数字广播网络(其可以使用或可以不使用IP)。该文档指定的技术属于MMT的三个功能领域之一:媒体处理单元(MPU)格式、信令消息和传递协议。MPU格式指定封装定时和非定时媒体内容的“mpuf”品牌的基于ISO的媒体文件格式(ISOBMFF)。MPU格式是一种独立的ISOBMFF结构，能够独立消费媒体数据，这从传递函数中隐藏了特定于编解码器的细节。信令功能区指定携带用于管理媒体内容递送和消费的信息的信令消息的格式，例如，媒体内容的特定媒体位置和递送配置。递送功能区指定独立于媒体和编解码器类型的有效载荷格式，其允许如本文档所指定的那样封装的内容的分段和聚合，以便使用面向分组交换的传输协议进行递送。传送功能区还提供允许媒体内容的高级传送的应用层传输协议。

ISO/IEC 23008-1:2017 specifies MPEG media transport (MMT) technologies, which include a single encapsulation format, delivery protocols and signalling messages for transport and delivery of multimedia data over heterogeneous packet-switched networks for multimedia services. Types of packet-switched networks supported by this document include bidirectional networks such as Internet Protocol (IP) networks and unidirectional networks such as digital broadcast networks (which may or may not use the IP).
The technologies specified by this document belong to one of three functional areas of MMT: media processing unit (MPU) format, signalling messages and delivery protocol.
The MPU format specifies the "mpuf" branded ISO-based media file format (ISOBMFF) encapsulating both timed and non-timed media contents. The MPU format is a self-contained ISOBMFF structure enabling independent consumption of media data, which hides codec-specific details from the delivery function.
The signalling functional area specifies the formats of signalling messages carrying information for managing media content delivery and consumption, e.g. specific media locations and delivery configuration of media contents.
The delivery functional area specifies the payload formats that are independent of media and codec types, which allow fragmentation and aggregation of contents encapsulated as specified by this document for delivery using packet-switched oriented transport protocols. The delivery functional area also provides an application layer transport protocol that allows for advanced delivery of media contents.

标准预览图