A reliable media streaming device

Abstract

The invention discloses a reliable media stream transmission device. The device is used for carrying out reliable media stream transmission between a sender device and a receiver device. The reliable media stream transmission device comprises a first unit arranged at the sender device side and a second unit arranged at the receiver device side; the first unit comprises a media stream conversion module, a media stream backup sending module and a first communication module; the second unit comprises a media stream receiving module, a packet loss processing module, a media stream sending module and a second communication module; the packet loss processing module sends a data retransmission request when a packet is lost; the media stream backup sending module judges whether there is to-be-retransmitted media stream data in a cache or not after the data retransmission request sent by the second unit is received; if there is to-be-retransmitted media stream data, the media stream data is retransmitted; and otherwise, the retransmission request is ignored. Through adoption of the reliable media stream transmission device provided by the invention, the problem of packet loss in the media stream data transmission process is solved through; and the reliable transmission of the media stream data is realized.

Description

technical field [0001] The invention belongs to the field of media stream transmission, and in particular relates to a reliable media stream transmission device. Background technique [0002] With the popularization of IP monitoring technology and the Internet, Internet access is becoming more and more convenient, and the global distribution of cross-regional branch offices and commercial groups increasingly requires remote Internet video surveillance. Packet loss, out-of-sequence, and delay of media streaming data will cause serious consequences such as video freezes and blurred screens, affecting user experience. In the wide area network or wireless network environment, packet loss and out-of-sequence of media stream data cannot be avoided. Therefore, how to achieve reliable transmission of media stream data is the key to improving the quality of video surveillance images. [0003] Media stream data transmission generally uses UDP for transmission. UDP transmission has go...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a reliable media stream transmission device to solve the problem of out-of-order and packet loss in the process of media stream data transmission in a large number of video surveillance systems that do not have reliable media stream transmission in the existing network, which affects the quality of surveillance video

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