Method for solving blurred screen phenomenon produced by video stream transmission system

Abstract

The invention provides a method for solving a blurred screen phenomenon produced by a video stream transmission system. The method comprises the following steps: importing a message queue and an intermediate proxy, wherein the message queue is used for caching video stream transmitted to a client by a server through a UDP protocol, and the intermediate proxy judges whether the video has been sentto the client after receiving a downloading request and cookie sent by the server; if the video stream has been sent to the client, judging whether the packet loss phenomenon is existent in the videostream cached in the message queue at the first time, if the packet loss phenomenon is existent, re-caching, and continuously enabling the server to send the data cached at the second time to the message cache to cache; when the packet loss phenomenon is inexistent, keeping the video stream of the downloading request received by the server again from caching to the message queue, wherein the intermediate proxy directly takes the video stream in the message queen to send to the client. The existent blurred screen problem due to packet loss or streaming phenomenon is solved, and then the technical problem that excessive bandwidth is wasted since the server resends the video stream is further avoided.

Description

technical field [0001] The invention belongs to the technical field of video transmission, and in particular relates to a method for solving the blurred screen phenomenon generated by a video stream transmission system. Background technique [0002] The main function of the streaming media server is to transmit the video stream to the client through the streaming protocol (RTP / UDP, etc.), for the monitor to monitor and watch or send it to the processor for processing and decoding. [0003] Since the UDP protocol is an unreliable and connectionless simple transmission protocol, the existing video stream cannot guarantee that the data can reach the destination accurately and reliably during the transmission process, and packet loss is prone to occur; This kind of unknown, the server sends data to the client, the server does not know whether the client has received it normally, after the server receives the download request, it will continue to send video streams, so when the c...

AI Technical Summary

Problems solved by technology

[0003] Since the UDP protocol is an unreliable and connectionless simple transmission protocol, the existing video stream cannot guarantee that the data can reach the destination accurately and reliably during the transmission process, and packet loss is prone to occur; This kind of unknown, the server sends data to the client, the server does not know whether the client has received it normally, after the server receives the download request, it will continue to send video streams, so when the client stops receiving data unexpectedly due to some reasons, the server does not I don’t know, but I still insist on sending data to the client. When the client requests to download the video stream again, the server receives the instruction to send data twice, and streaming will occur. Whether it is packet loss or streaming, it will cause the client to There is a blurred screen phenomenon when watching videos. The current solution is to check whether the IP of the stream information sent by the UDP protocol stream detection interface is the same as the IP of the receiving client. If they are the same, close the video stream being sent by the server. In addition, through Introduce the heartbeat packet protocol to receive the feedback information from the client, but the above two methods cannot well solve the blurred screen phenomenon caused by the packet loss problem

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