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针对分布式视频会议 ,提出了一个基于对象的分层系统模型 ,描述了组成系统的各种构件的对象化方法和多媒体间的语义关系 .这种模型将多媒体数据流在I/O级、处理级和传输网络级进行对象分解 .多个对象的分布处理 ,易于按数据流编程实现 ,能很好地适应编程环境和网络环境 .该模型可充分开发不同粒度的并行性 ,使媒体处理满足实时应用的需求 .程序模块具有很好的可重用性 ,有利于在不同操作环境下系统的实现及互通 .
For distributed video conferencing, an object-based hierarchical system model is proposed, which describes the object-oriented method of various components and the semantic relationship between multimedia.It integrates multimedia data flow at I / O level, processing Level and transmission network level object decomposition.Multiple objects distributed processing, easy to program by data flow, can be well adapted to the programming environment and network environment.This model can fully develop the parallelism of different granularity, so that the media processing to meet the real-time Application requirements. Program modules have good reusability, in different operating environments conducive to the realization and interoperability of the system.