一个视频点播系统的设计与实现

Design and Implementation of a Video on Demand System

介绍了一种利用有线数字电视广播信道和支持IP交互信道的视频点播系统,广播信道用来传输点播的节目,交互信道传输机顶盒和前端服务器的控制信息,视频点播的各种控制基于DSM-CC协议实现。重点阐述了该系统端到端的逻辑结构和机顶盒相关软件的设计。从实现的原形系统分析,该系统可用于有线电视网络中,服务于所有的有线电视用户。

This paper introduces a Video on Demand system based on both CATV broadcasting channels and IP interactive network. CATV broadcasting channels are used for content transmission and IP network is used for control information transmission between Set Top Box and I-leadend Server, The control mechanism of whole system is designed and implemented according to DSM-CC protocol stacks. The paper narrates the end-to-end system diagram and VoD application software of Set Top Box. The system can be used in CATV network and provide VoD services for CATV subscribers.