What is the reason why easycvr can't watch the device video when it is connected to the home protocol?

EasyCVR The platform supports massive video convergence and management 、 Handling and distribution 、 Intelligent analysis and other video capabilities , On the access protocol , Not only support the national standard GB28181 agreement 、RTSP/Onvif、RTMP Standard agreement , And support HIKSDK、 Dahua SDK、 The sea, Ehome Such as the factory furniture has an agreement with SDK. The platform is based on the cloud edge end integration architecture , Unified management of complex and changeable underlying resources , And can reasonably schedule resources 、 Share Information 、 Data interaction , Make the system more efficient 、 Stable , Achieve better collaboration among modules .

EasyCVR Platform support through GB/T28181、Ehome Agreement from Haikang 、 Dahua 、 Yushi and other cameras 、 Network hard disk video recorder NVR And so on , Press device 、 passageway 、 Date acquisition: retrieve and replay the corresponding video files , There is no need to install video playback plug-ins of various security manufacturers .

There's user feedback ,EasyCVR Access Ehome Agreed devices , There is a situation that the device video cannot be viewed , Ask us for assistance in troubleshooting . Today, I would like to share with you the troubleshooting and solution process .

During the investigation, it was found that , When the front end plays the video of the device , Send the request to the back end , But the back end is not forwarded to the device , As a result, the device video cannot be viewed .

Add the following code , Can be Ehome The device video queried by the protocol access device , Pass in the corresponding file name to the device during playback , According to the stream data from the callback , Push to the corresponding kernel address , Finally, return the playback address to the front end .

 		f := func() (string, int, error) {
			ret, err := dev.PlaybackStart(channel, smshost, playbackPort, name, offset)
			if err == nil {
				// Update playback information 
				obj := &ehomedo.EhomeChannelPlayback{
					ID:             0,
					ChannelID:      fmt.Sprintf("%d", channel),
					DeviceID:       devID,
					FileName:       name,
					Offset:         offset,
					PlaybackHandle: -1,
					SessionID:      ret,
					CreatedAt:      utils.DateTime{},
					UpdatedAt:      utils.DateTime{},
				}
				ehomedo.GetChannelPlaybackDao().Update(obj)
				// Channel parameters 
				channelInfo, err := ehomedo.GetChannelDao().Get(obj.ChannelID, devID)

After modification , Try playing again , The device video has been displayed normally .

EasyCVR Excellent video ability is reflected in its rich video functions 、 Low delay transmission 、 All terminal compatible 、 Support a variety of network environments and other aspects , The video functions that the platform can realize include video monitoring live broadcast 、 Cloud video 、 Cloud storage 、 Video retrieval and review 、 Intelligent alarm 、 Platform cascade, etc , It can be used in smart factories 、 Smart construction site 、 Intelligent Security 、 Smart campus 、 Intelligent water conservancy and other scenes . Interested users can go to the demonstration platform for experience or deployment testing .