Optimization of video streaming with repeated requests in the case of unstable easygbs network

EasyGBS It is based on the national standard GB28181 Video cloud service platform based on protocol , It supports the unified access and centralized management of devices with national standard protocols . The platform has excellent video capabilities , Including live video surveillance 、 videotape 、 Cloud storage 、 The playback 、 Platform cascading 、 Voice talk 、 Intelligent alarm and other functions , There are a large number of landing applications in offline scenarios .

We found in the project test ,EasyGBS adopt web When page requests streaming , When the network is unstable , Users click to play many times , It will cause repeated flow pulling at the back end , It consumes the flow of the equipment . Such operations will incur certain traffic costs , Especially in projects with sensitive traffic , Causing unnecessary expenses . Therefore, in view of the above situation , We optimized the code .

When the network is unstable , Users may click many times , As a result, it is transmitted to the backend many times , The back end will request many times at the same time invite, As a result, this device has two streams , Therefore, the equipment continues to flow , Consumption of equipment traffic , Here's the picture ：

resolvent ： In the method of requesting streaming , Adding a lock to control each device can only be done once at the same time invite. The code is as follows ：

thus , It will not cause repeated flow of the equipment .

In terms of video capability ,EasyGBS Can be GB/T28181 equipment / Platform push PS Transfer into ES flow , And provide RTSP、RTMP、FLV、HLS、WebRTC And other multi format video streams , Realization Web browser 、 Mobile phone browser 、 Wechat end 、PC There is no plug-in playing in the client and other terminals . The platform is based on the advantages of cloud side architecture , It has been applied in a large number of offline scenes , Including bright kitchen and bright stove 、 Snow project 、 Ping An Village, etc . Interested users can go to the demonstration platform for experience or deployment testing .