Design And Implementation Of Performance Measurement Probe For Streaming Media

With the vigorous development of network multimedia technology, the streaming media has become one of the most popular online services for network end users. Real time and online video services, which take up more and more local and cyber resources, come up with a new requirement of measuring method for computing resources and network performance evaluation in the large-scale application of this kind of business.Because of the diversity of influencing factors of video transmission and playback quality, the industry at home and abroad have not formed a unified standard for a comprehensive evaluation to the actual situation of performance and quality of streaming media service.While the traditional streaming media technology for the measurement of real-time streaming media RTSP/RTP based on UDP is long being discussed, YouTube and other online video sharing website is just arising, it still has vast development chance for media video measurement technology for such online HTTP/TCP streaming. Different from the real time streaming media, delay, packet loss and jitter and other factors can no longer directly reflect playback performance of online video. Bandwidth and cache and many other factors in recent years are more and more taken into analysis.This subject combines streaming media transmission performance and service quality of content to screen out the common measurement metrics. And through analysis on multilayer network protocols and Web pages, this paper design and implement the measurement probe which can calculate the indicators effectively. Using the cloud monitoring platform, it provides large-scale measurement and collection for measurement data, in order to show more intuitively the actual impact of these indicators of streaming media service performance.This paper firstly introduces the topic of the research background and significance of the research, then analyses and compares domestic and international latest streaming media measurement research and technical standards. And then it describes the type of video and related protocols and the functional requirements of the measuring probe for a summary of the design of streaming media service performance probe, then implement the measurement probe. Through the deployment of the measuring probe to the terminal, it’s able to effectively evaluate the video quality experienced by end users. In addition, this paper has tested the function of the measuring probe, and through the statistical data obtained by the measurement tools, summarizes some characteristics of online video websites which provide the video and their transmission quality.