数字电视系统中多路传输流的软件复用  

Software multiplexing scheme of multiple transport streams in digital video system

作　　者：张宁[1] 沈智鹏[1] 

机构地区：[1]大连海事大学信息科学技术学院,辽宁大连116026

出　　处：《大连海事大学学报》2008年第1期75-77,82,共4页Journal of Dalian Maritime University

基　　金：国家自然科学基金资助项目(60774046);中国博士后科学基金资助项目(20070421047)

摘　　要：为提高传输流复用器经济性,对数字电视系统中专用信息的提取、重构及系统层节目时间参考值的修正等关键技术进行研究,提出了多路传输流软件复用的具体解决方案.应用VC++开发环境设计实现了多路传输流分析与复用软件系统.测试结果表明,软件复用速率达40 Mb/s,远高于一路传输码流的速度.To improve transport stream multiplexer economy, software multiplexing scheme of multiple transport streams was developed. Key technologies of retrieval and reorganization for digital video program specific information and regulation for program clock reference value were discussed. The transport stream analyzer and multiplexer software system was developed based on Visual C ＋ ＋ development environment. Test results show that the software multiplexing rate reaches 40 Mb/s, which is greatly faster than a transprot stream speed, and effectiveness of the proposed software scheme is demonstrated.

关 键 词：数字电视系统 多路传输流 软件复用 节目专用信息 节目时间参考值 

分 类 号：TN919.85[电子电信—通信与信息系统]