信息技术.多媒体框架系统技术.第1部分:XML用二进制多媒体框架

[中文适用范围]： ISO/IEC 23001 的这一部分提供了一组用于编码 XML 文档的标准化技术。 它通过提供传输和压缩 XML 文档的通用方法来满足广泛的应用程序和要求。 ISO/IEC 23001 的这一部分指定了 XML 文档通信的系统级功能。 它提供了一个规范，该规范将： ——能够开发 ISO/IEC 23001-1 接收子系统，称为 ISO/IEC 23001-1 终端，或简称为终端，以接收和组装可能分区和压缩的 XML 文档 - 提供规则用于准备 XML 文档以进行有效的传输和存储。 ISO/IEC 23001-1 终端内的解码过程是标准化的。 上述规则为 XML 文档的准备和编码提供了指导，但不会导致此类文档的唯一编码表示形式。 [外文原描述]： ISO/IEC 23001-1:2006 provides a standardized set of generic technologies for encoding XML documents. It addresses a broad spectrum of applications and requirements by providing generic methods for transmitting and compressing XML documents. ISO/IEC 23001-1:2006 provides a specification which gives rules for the preparation of XML documents for efficient transport and storage, and enables the development of ISO/IEC 23001-1 terminals to receive, decode and assemble possibly partitioned and compressed XML documents. The binary MPEG format for XML relies on schema knowledge between encoder and decoder in order to reach high compression efficiency, while providing fragmentation mechanisms for ensuring transmission and processing flexibility. ISO/IEC 23001-1:2006 also defines means to compile and transmit schema knowledge information to enable the decoding of compressed XML documents without a priori schema knowledge at the receiving terminal. The binary MPEG format for XML is described in four main sections: System Architecture presents the architecture of an ISO/IEC 23001-1-compliant terminal and general characteristics of an ISO/IEC 23001-1 decoder, such as decoder behaviour. Binary Format specifies binary syntax and associated semantics of the structural elements. In particular, this section describes the structure of a binary access unit.Binary Fragment Update Payload specifies binary syntax and associated semantics of the payload content. In particular, this section describes the decoding process of complex Type content using finite state automaton decoders. Advanced Optimized Decoders describes the mechanisms for decoding simple types of an XML document using advanced optimised decoders. The binary format for XML described in this specification can be used for encoding MPEG-7 and MPEG-21 descriptions, as specified in ISO/IEC 15938-1 (MPEG-7 Systems) and 21000-16 (MPEG-21 Binary Format), respectively.