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Method and apparatus of RTP control protocol (RTCP) processing in real-time transport protocol (RTP) intermediate systems
Method and apparatus of RTP control protocol (RTCP) processing in real-time transport protocol (RTP) intermediate systems
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机译:实时传输协议(RTP)中间系统中的RTP控制协议(RTCP)处理的方法和装置
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摘要
Media processing of real-time protocol (RTP) packets used in time sensitive applications makes efficient use of network resources, e.g., by dropping or resizing the packets, but hinders measuring and reporting end-to-end reception quality. Because media processing causes a difference between what is sent and received, end-to-end reception quality cannot be measured validly without accounting for this difference. Accordingly, a method and corresponding apparatus are provided to track changes to RTP packets of an RTP session caused by media processing, modify RTP packet information of the RTP packets based on the tracked changes, correct RTP control protocol (RTCP) packets corresponding to the RTP session based on the tracked changes, the corrected RTCP packets being a measure of the end-to-end reception quality of the RTP session, and report the end-to-end reception quality of the RTP session by forwarding the corrected RTCP packets. Thus, end-to-end reception quality can be validly measured and reported.
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