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提出一种多媒体通信机制——服务质量受控型管道,作为基于服务质量的平台层点对点多媒体通信抽象,以支持分布式多媒体应用的描述与开发.给出了服务质量受控型管道的形式定义,详细讨论了其工作过程.该抽象已经成功地应用于分布式多媒体信息点播系统和分布式多媒体信息系统等.实践表明,服务质量受控型管道既可以直接支持点对点多媒体通信,也可以作为多媒体组通信抽象的基础.
This paper proposes a multimedia communication mechanism-Quality of Service Controlled Pipeline as abstraction layer point-to-point multimedia communication abstraction based on service quality to support the description and development of distributed multimedia applications.The formal definition of quality of service controlled pipelines , Discussed its working process in detail.This abstraction has been successfully applied to distributed multimedia information on demand system and distributed multimedia information system.The practice shows that quality of service controlled pipelines can not only directly support point to point multimedia communication but also can be used as multimedia Group communication abstract basis.