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介绍MPEG-21多媒体框架标准制定的最新进展情况,对该标准已开发完毕和正在开发中的18个部分进行简单说明;归纳总结MPEG-21标准的总体框架结构,描述该标准18个部分间的相互关系;简要分析MPEG-21 DIDL 作为一种基于XML的复合数字对象打包标准规范在数字图书馆中的应用现状,并对MPEG-21标准在数字图书馆中的应用前景作一展望。
Introducing the latest progress of MPEG-21 multimedia framework standard development, the standard has been developed and is being developed in 18 parts a brief description; summarizes the overall framework of MPEG-21 standard framework describes the 18 parts of the standard This paper briefly analyzes the application status of MPEG-21 DIDL as an XML-based composite digital object packaging standard in digital library and prospects the application prospect of MPEG-21 in digital library.