For Video Monitor System Based On Network

As a member of security guard which nowadays people pay more attention on,Video Monitor System plays an important role because of its advantages in video record, alert trigger, hard disk storage and multi-channel monitor.The Video Monitor System based on network in this paper gives an effective remote control on digital video recorder(DVR), and its remote client can display four channels in D1 resolution at the same time.Chapter one discusses the development trend of video monitor system and digital encode technology.Chapter two gives the selection of develop environment and platform. Also introduces the key technologies: windows sockets programming technology, windows multi-thread programming technology, windows graphic programming technology, MPEG-4 encode and decode technology, video data transmission technology and stream-media technology.Chapter three describes the design and realization of the remote client. A whole design is given at first, then the module design is explained, at last the implementation result is given.Chapter four presents the design of real time stream player. It discusses the main modules(net module,decode module ,display module and operation control module),other modules(video accessories card capability detect module and surface management module) and performance improvements(buffering, share memory,thread model).Chapter five draws a conclusion of this paper and make a forward looking on theimprovement of the system's performance.