Media flow self-adapting transmission method based on internet

Abstract

The invention discloses a media stream self-adapting transporting method based on the internet comprising, a. establishing RTP / UDP / IP protocol structure, wherein the data plane of the protocol structure is in charge of using the media video stream and audio stream packaged by RTP, while the control plane of the protocol structure transmits the control instructions simultaneously using the RTCP feed back network information and RTSP, establishing a congestion control structure based on the transmitting end that can be applied both in the real time coding and in the video frequency transfer storage. The invention can realize the best playback quality possible on the user end under the changes of the network operation.

Description

technical field [0001] The present invention relates to a kind of media flow self-adaptive transmission method based on Internet (Internet), more specifically, it is about the Internet-based MPEG-4 flow self-adaptive transmission method, so that under the situation that the Internet network operating conditions are constantly changing, it can Dynamically adjust the transmission of MPEG-4 code stream, so that the client can obtain the best possible playback quality. Background technique [0002] The backbone network foundation of streaming media technology is the Internet, and the Internet provides a "best effort" (best effort) service support, that is, it does not provide QoS (Quality of Service) guarantee for the transmitted data. The Internet is an open heterogeneous network. For multimedia data transmission such as video and audio, the main problems are transmission delay, delay jitter and packet loss. The root cause of these problems is insufficient network bandwidth, w...

AI Technical Summary

Problems solved by technology

Therefore, the Fast Loss Internet Image Transmission (FLIIT, Fast Loss Image Transmission) method proposed by someone has eliminated the delay caused by retransmission, and can also achieve the effect of TCP transmission. In fact, it is a source of information. / channel joint forward error correction coding technology, but this method introduces a large amount of transmission overhead and is not suitable for MPEG-4 transmission

[0004] In addition, the error control method based on the retransmission mechanism will bring a heavy burden to the network. Extensive use of the retransmission mechanism will aggravate network congestion, and in severe cases, the entire network can be paralyzed, so it is also a method that cannot be adopted.

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