ISO/IEC 29116-1:2008 信息技术 辅助性媒体技术 第1部分：媒体流应用格式协议

标准编号：ISO/IEC 29116-1:2008

中文名称：信息技术 辅助性媒体技术 第1部分：媒体流应用格式协议

英文名称：Information technology — Supplemental media technologies — Part 1: Media streaming application format protocols

发布日期：2008-06

标准范围

ISO/IEC 29116-1:20 08规定了一组与ISO/IEC 23000-5结合使用的协议，在其中受管理的音频和视频信息被流式传输到称为媒体流播放器的终端用户设备的应用中。媒体流播放器可以与许多媒体流设备交互:内容提供者设备，能够与媒体流播放器交互以提供内容的设备；许可证提供者设备，能够与媒体流播放器交互以提供许可证的设备；IPMP工具提供商设备，能够与媒体流播放器交互以提供IPMP工具的设备，即，执行诸如加密、水印等的一个或多个功能的模块；域管理设备，能够管理域正常运行所需的各种功能的设备。两种类型的协议是ISO/IEC 29116-1:20 08的目标:访问协议和域管理协议。访问协议指定媒体流播放器如何从另一媒体流设备获得以下信息:通过诸如MPEG-2传输流或因特网协议实时协议(RTP/IP)之类的现有协议流式传输到终端用户设备或存储在MPEG-21文件中的内容项或其任何部分；许可证，其可以授予媒体流播放器或其用户对内容项或其任何部分的一些权利，可能在某些条件下；实现安全功能的可执行代码域管理协议指定如何将多个设备和/或用户分组在共享一些公共属性的域、设备组或用户中。通过使用域，可以实现更灵活的许可模式，例如向域中的所有设备或用户许可内容。域管理协议包括实现以下目标的技术规范:创建、续订或删除域；为设备和用户颁发域成员许可证；管理域的设备和用户成员资格，即加入、更新和离开域；验证域绑定内容是否已根据许可条款在域内使用。

ISO/IEC 29116-1:2008 specifies a set of protocols to be used in conjunction with ISO/IEC 23000-5, in applications where governed audio and video information is streamed to an end-user device, named the Media Streaming Player.Media Streaming Players can interact with a number of Media Streaming Devices:

• Content Provider Device, a device capable of interacting with a Media Streaming Player to provide content;
• Licence Provider Device, a device capable of interacting with a Media Streaming Player to provide licences;
• IPMP Tool Provider Device, a device capable of interacting with a Media Streaming Player to provide IPMP Tools, i.e. modules performing one or more functions such as encryption, watermarking, etc.;
• Domain Management Device, a device capable of managing various functions needed for a proper functioning of a domain.

Two types of protocols are the target of ISO/IEC 29116-1:2008: the Access Protocols and the Domain Management Protocols.The Access Protocols specify how a Media Streaming Player can obtain from another Media Streaming Device the following information:

• a content item or any of its parts, either streamed to an end-user device by means of existing protocols such as MPEG-2 Transport Stream or Real Time Protocol over Internet Protocol (RTP/IP) or stored in an MPEG-21 file;
• a licence, which can grant the Media Streaming Player or its user(s) some rights over a content item or any of its parts, possibly under some conditions;
• executable code implementing security functions

The Domain Management Protocols specify how a number of devices and/or users can be grouped in a domain, groups of devices or users sharing some common properties. By using domains it becomes possible to implement more flexible licensing modalities, e.g. to license content to all devices or users in a domain. Domain Management Protocols include the specification of technologies for achieving the following goals:

• creating, renewing or deleting a domain;
• issuing domain membership licences for devices and users;
• managing devices and users memberships of a domain, i.e. joining, renewing and leaving a domain;
• verifying that domain-bound content has been used within the domain according to licence terms.

标准预览图