camera with google nest hub not support webrtc

Question

I plan to implement cameraStream base on webRTC. below is the sync response

{
    "requestId": "3436995274582895851",
    "payload": {
        "agentUserId": "9662437",
        "devices": [
                     {
            "id": "1234567",
            "willReportState": true,
            "name": {
                "defaultNames": ["device"],
                "name": "google",
                "nicknames": ["google"]
            },
            "deviceInfo": {
                "manufacturer": "test",
                "model": "test model",
                "hwVersion": "3.2",
                "swVersion": "1.0"
            },
            "type": "action.devices.types.CAMERA",
            "traits": ["action.devices.traits.CameraStream", "action.devices.traits.OnOff", "action.devices.traits.Toggles"],
            "attributes": {
                "cameraStreamSupportedProtocols": ["webrtc"],
                "cameraStreamNeedAuthToken": "true",
                "cameraStreamNeedDrmEncryption": "false"
            }
        }
                 ]
}

When I click on [Home Control] -> [Cameras] -> [google] in Nest Hub, the execute command [action.devices.commands.GetCameraStream] request body is:

{
    "inputs": [{
        "context": {
            "locale_country": "US",
            "locale_language": "en"
        },
        "intent": "action.devices.EXECUTE",
        "payload": {
            "commands": [{
                "devices": [{
                    "id": "1234567"
                }],
                "execution": [{
                    "command": "action.devices.commands.GetCameraStream",
                    "params": {
                        "StreamToChromecast": false,
                        "SupportedStreamProtocols": ["progressive_mp4", "hls", "dash", "smooth_stream"]
                    }
                }]
            }]
        }
    }],
    "requestId": "4201636922257945448"
}

What I want to know is, what's wrong with this process

score 0 · Answer 1 · answered Jun 27 '22 at 02:51

I’m unable to reproduce your issue via the SYNC response below:

{
   "requestId": "...",
   "payload": {
     "agentUserId": "USER_ID",
     "devices": [
       {
         "id": "camera",
         "type": "action.devices.types.CAMERA",
         "traits": [
           "action.devices.traits.StartStop",
           "action.devices.traits.CameraStream"
         ],
         "name": {
           "name": "My camera"
         },
         "willReportState": false,
         "attributes": {
           "pausable": false,
           "cameraStreamSupportedProtocols": [
             "hls",
             "webrtc",
             "progressive_mp4"
           ],
           "cameraStreamNeedAuthToken": false
         }
       }
     ]
   }
 }

Based on your SYNC response, could you confirm whether it is valid JSON?

Here are two issues:

The type of cameraStreamNeedAuthToken, cameraStreamNeedDrmEncryption is boolean, please remove quotes.
If you’d like to use OnOff and Toggles traits, please follow our DevSite and add required attributes.

Let me know if it works for you. Thanks!

camera with google nest hub not support webrtc

1 Answers1