Easycvr, an urban intelligent video monitoring image analysis platform, plays national standard equipment videos and captures unstable packets for troubleshooting

EasyCVR The protocol compatibility of video platform is very strong , Support most of the existing protocol access , such as GB28181 Agreement and Ehome agreement . meanwhile EasyCVR There are two ways of recording , They are cloud video and device video , Video can be played by calling . But in EasyCVR adopt GB28181 When the protocol plays the video of the device, there will be the problem that it cannot be played after playing for a period of time .

Through packet capture data , Be able to see EasyCVR The platform is constantly sending start calls to the device invite news .

At the moment of view page interface call, the page is constantly calling the playback interface ：

So check the interface code , It is found that only the playback interface is called in the interface , But after the first play , What should be called later is keep alive , Add the following code , Determine when the page requests the playback interface , Call the keep alive interface when there is a stream .

sTime, err := time.ParseInLocation("20060102150405", stime, time.Local)
eTime, err := time.ParseInLocation("20060102150405", etime, time.Local)
var stream *sip.Stream
if url != "" {
       urlarr := strings.Split(url, "_")
       if len(urlarr) >= 2 {
              namearr := strings.Split(urlarr[1], ".")
              streamurl := fmt.Sprintf("playback:%s:%s:%s", sipDev.DeviceID, gbchannels[0].ToSIPChannel().DeviceID, namearr[0])
              stream, err = uas.Server.TouchStream(streamurl)
       }

}

Check again , The broadcast message is sent normally , Video playback also returned to normal .

from TSINGSEE Made by Qingxi video EasyCVR Security video cloud services can not only support standard protocols （RTSP、RTMP、Onvif、GB28181 Such agreement ） I have an agreement with the factory （ The sea, SDK、Ehome agreement ） Access to , It can also be compatible with most of the security devices on the market , It can be used as a strong support for the construction of smart city , Welcome to know .