| Video Monitoring is always an applied technology which people pay a lot attention to. It is widely used by its convenience and abundant information. Remote video monitoring refers to several technical fields such as information technology, computer technology, network technology and stream media technology. Compared with the traditional monitor systems, Remote video monitor system has advantages of low cost, long kinescope time, perfect image quality and rapid query rate. It is the development direction of video monitor system。Remote video monitor system has two parts: server part and remote monitoring part. Visual data is collected, converted, compressed and send to network in server part. The Visual data is received by remote monitor part. Then it will be decompressed and displayed on screen. In this thesis, I designed a software method of visual stream playback based on DirectShow technology. And the payback system was realized in VC++ language. In this thesis, the structure of the Remote video monitor system and the parts consisting it are presented. Then stream media technology is researched and the common stream media solutions are compared. By analyzing the character and principle of DirectShow technology, I designed a visual stream playback system based on DirectShow technology. And realize decompression and display function of MPEG-1 and MPEG-4 visual stream in VC++ language. I introduce the implement method of several Filters designed by myself. And I also finish the monitoring interface.Through the testing of MPEG-1 and MPEG-4 visual stream playback, the results prove the system has good function and stability. At last, I present the shortcoming and further work in the system. |
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