多媒体监控系统中音视频实时复用的一种策略  

A Strategy of Real-time Video and Audio Multiplexing in Multimedia Surveillance System

作　　者：袁登涛[1] 陈平[1] 沈芸[1] 石鸿凌[1] 苏祥芳[1] 孙洪[1] 

机构地区：[1]武汉大学电子信息学院,湖北武汉430072

出　　处：《武汉大学学报（理学版）》2002年第3期360-364,共5页Journal of Wuhan University:Natural Science Edition

基　　金：国家自然科学基金(69572030)资助项目

摘　　要：根据基于MPEG-1的多媒体监控系统音、视频实时复用的原理,结合MPEG-1的系统层规范和限制,并在一些现有的复用策略的基础上,提出了一种基于媒体流时间标签关系的复用算法.该算法通过监测STD缓冲区状态和不断更新STD缓冲区来控制复用器实时交织.用软件实现了该算法,实验结果表明了该算法的有效性和合理性.We put forward a novel video and audio multiplexing algorithm, which is based on investigation of relationship between Time-Stamps of multimedia streams and principles of real-time video and audio multiplexing in a MPEG-1 based multimedia surveillance system. This algorithm control real-time inter-weaver by surveying the status of STD buffer and updating the STD buffer constantly. This algorithm also takes system layer standards and restrictions of MPEG-1 into account. We have verified the validity and the rationality of this algorithm by software experiments.

关 键 词：多媒体 监控系统 音视频实时复用 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置] TN919.8[自动化与计算机技术—控制科学与工程]