Iptv Video Transmission Quality Monitoring System

With the fast development of the IPTV, there are more requirements for the laden network. The decline of the media quality which is caused by the network performance, has become the key for the development of IPTV, how to evaluate the media's quality fast and impersonal in network is the most important thing which needs researchers to do.The media quality testing has been the hot problem for researching, there are so many factors such as dithering, time delay and packet loss besides encoder/decoder make much influence on media delivery quality. IETF organization has made the RFC4445 standard for the Media Delivery Index in April, 2006. This paper we research and design a monitor system in IPTV media performance which based on MDI. This system can analyses and test the media's offset and distortion, also can be used in operating and maintaining.This paper first introduces the IPTV operation and working principle, then gives the detailed analyses for the RTP/RTCP and RTSP. Also, the new method for the MDI has been proposed, we design a monitor system in IPTV media performance based on MDI testing standard.We test the system in various environments such as high-load, low-load, point-to-point, the results show the system has a good performance.