信息技术.附加的媒体技术.第1部分:媒介流动应用格式协议

[中文适用范围]： 该国际标准指定了一组与 ISO/IEC 23000-5（媒体流播放器）结合使用的协议，用于将受管理的音频和视频信息流式传输到最终用户设备的应用中。 该国际标准规定了两种类型的协议，——访问协议，允许设备从另一设备获取内容项或其部分、许可证或实现安全功能的可执行代码，以及——域管理协议，允许许多用于创建、加入、管理等的一组用户和设备，参与者共享公共属性。 [外文原描述]： 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.