Method and device of centralized forwarding of media stream

Abstract

The invention provides a method and a device of centralized forwarding of a media stream. The method comprises the following steps of when a live request is received, searching an access table of monitoring client equipment to obtain a first access public network address and searching an access table of monitoring front-end equipment to obtain a second access public network address; searching a media stream forwarding table according to the first access public network address and a private network address of a media stream server so as to obtain a first media stream public network address, and searching the media stream forwarding table according to a second access public network address and the private network address of the media stream server so as to obtain a second media stream public network address; transmitting the second media stream public network address to the monitoring front-end equipment, informing the monitoring front-end equipment to initiate a connection with the media stream and transmitting the media stream, transmitting the first media stream public network address to the monitoring client equipment, informing the monitoring client equipment to initiate a connection with the media stream and receiving the media stream. According to the method and the device, the centralized forwarding of the media stream between two operators can be implemented without relying on special functions of an egress router.

Description

technical field [0001] The invention relates to the technical field of video surveillance, in particular to a method and device for centralized forwarding of media streams. Background technique [0002] With the development of the monitoring industry, the demand for WAN chain monitoring is increasing day by day, and each chain store is connected to the WAN from different operators. In order to reduce the network delay and packet loss caused by cross-operators, the outlet of the chain store headquarters needs to be connected to multiple operators at the same time, such as figure 1 As shown in the figure, the egress router of the headquarters connects the two networks of Carrier 1 and Carrier 2. In the centralized forwarding mode, the front-end NVR (Network Video Recorder, network hard disk recorder) needs to send the media stream to the MS (Media Server, media stream server), and the MS forwards it to the client. Such as figure 1 As shown, when XP1 broadcasts live to NVR1,...

AI Technical Summary

Problems solved by technology

This processing method requires that the egress router or firewall of the headquarters must support the ALG function. The ALG function is based on a specific application, such as SIP (Session Initiation Protocol, Session Initiation Protocol). If it is not a standard protocol, or the router does not support ALG at all, Then the solution will not be possible

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