Request for assistance configuring WebRTC Camera device

[bkdfkup]

as logged on node-red forums here https://discourse.nodered.org/t/camera-configuration-using-node-red-contrib-google-smarthome/57545 i am seeking assistance regarding configuration of a WebRTC stream in the google device camera configuration. Some detailed guidance would be appreciated if possible.

[bkdfkup]

Excerpt from node-red forum post.

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Hi All.

Working on configuring camera streaming to google assistant via
node-red-contrib-google-smarthome and am having some challenging issues. I have tried several protocols, and have only had some success using FFMPEG-produced smooth-streaming. No luck using MP4, HLS, DASH or WebRTC protocols.

I am attempting to get WebRTC working now as my attempts to live stream an rtsp camera feed via FFMPEG were causing some issues.

I have configured a functioning instance of OvenMediaEngine, and have a working WebRTC stream being produced. What i cannot now figure out are the correct WebRTC configurations to enter into the google device node configurations.

Using the example configurations here WebRTC Streaming - OvenMediaEngine and here Getting Started - OvenMediaEngine i would love some help determining what needs to be entered here
image

Thanks in advance

[ckhmer1]

I've developed the WebRTC camera support, I'm sorry but I don't own a WebRTC camera, the feature is untested by me.
I can provide You with limited support.

[bkdfkup]

Thanks for replying. The links I sent you may be of benefit to you for testing purposes. It can produce many stream types including WebRTC and DASH. What protocols have you tested successfully so I can prioritise which I use?

…

________________________________ From: Claudio Chimera ***@***.***> Sent: Wednesday, February 2, 2022 12:15:19 AM To: mikejac/node-red-contrib-google-smarthome ***@***.***> Cc: bkdfkup ***@***.***>; Author ***@***.***> Subject: Re: [mikejac/node-red-contrib-google-smarthome] Request for assistance configuring WebRTC Camera device (Issue #247) I've developed the WebRTC camera support, I'm sorry but I don't own a WebRTC camera, the feature is untested by me. I can provide You with limited support. — Reply to this email directly, view it on GitHub<https://apac01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fmikejac%2Fnode-red-contrib-google-smarthome%2Fissues%2F247%23issuecomment-1026831402&data=04%7C01%7C%7C4b07554a99794e2dcbd308d9e584e540%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637793181221996023%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=Yzm1xBKIACxUdiBTR0xu8STwlAOcTawqKR6sGfWuj2g%3D&reserved=0>, or unsubscribe<https://apac01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FARZZIBBYVZUE5AVZ6GZ27ZLUY7MGPANCNFSM5NF6TRNQ&data=04%7C01%7C%7C4b07554a99794e2dcbd308d9e584e540%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637793181221996023%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=SMEpKeBoJ8IM29Mk3sJucAFjXqBXft5g70LuDVYSSU0%3D&reserved=0>. You are receiving this because you authored the thread.Message ID: ***@***.***>

[ckhmer1]

Unfortunately I don't own an in IP camera, I'm trying to simulate then with an usb camera and nginx/rtmp, currently without success.
I've tested the node only simulating the messages.

[bkdfkup]

Understood! Thank you so much for your work on the node in general. It has opened up so many possibilities. One suggestion is for you to use a public rtmp stream and re-encode that to whatever format. If I make any progress I'll let you know. 👍

…

________________________________ From: Claudio Chimera ***@***.***> Sent: Monday, February 7, 2022 4:12:34 AM To: mikejac/node-red-contrib-google-smarthome ***@***.***> Cc: bkdfkup ***@***.***>; Author ***@***.***> Subject: Re: [mikejac/node-red-contrib-google-smarthome] Request for assistance configuring WebRTC Camera device (Issue #247) Unfortunately I don't own an in IP camera, I'm trying to simulate then with an usb camera and nginx/rtmp, currently without success. I've tested the node only simulating the messages. — Reply to this email directly, view it on GitHub<https://apac01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fmikejac%2Fnode-red-contrib-google-smarthome%2Fissues%2F247%23issuecomment-1030874384&data=04%7C01%7C%7Cccef8f56896948bd710d08d9e993dec4%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637797643571636358%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=uHo858GycKik6O2KM9DoSSbdsUVqXJHB0Z%2BdowVcqs8%3D&reserved=0>, or unsubscribe<https://apac01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fnotifications%2Funsubscribe-auth%2FARZZIBFTTNFMFUGEPII2ZYTUZ2TYFANCNFSM5NF6TRNQ&data=04%7C01%7C%7Cccef8f56896948bd710d08d9e993dec4%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637797643571636358%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=3z7IGnWZ6nNFhjQ6U079W%2B3KJh8JOWucRdbbvV8ce0M%3D&reserved=0>. You are receiving this because you authored the thread.Message ID: ***@***.***>

[nostroff]

I've had partial success. The good news is that node-red-contrib-google-smarthome module appears to work fine. The settings I used are as follows:
WebRTC Signaling URL: https://[my public server.com]:9443/stream/demo/channel/0/webrtc?uuid=demo&channel=0
WebRTC Offer session description protocol (SDP): o=- 6910163479322986733 2 IN IP4 127.0.0.1
WebRTC IceServers (entered as JSON, not string): [{"urls":"stun:stun.l.google.com:19302"}]

From the log messages, it looks like the public server needs to have a valid SSL certificate.

My camera streams video using RTSP. To convert the RTSP to WebRTC and provide the signaling server, I installed RTSPtoWeb (see: https://github.com/deepch/RTSPtoWeb).

I suspect my roadblock is with my camera not supporting the correct video and/or audio codec for playback on a Google Nest Hub 2 since I'm able to successfully stream my camera via WebRTC to a Chrome browser by browsing to https://[my public server.com]:9443. Some information regarding compatible video/audio codecs is here: https://developers.google.com/cast/docs/media.

Good luck.

[ckhmer1]

Hello,
i achieved similar results using the chromecast and simulating the webcam with nginx.
I also suspect that the codecs are not the right ones.
Thanks for the feedback.

[Caprico85]

Converting this to a discussion to close this issue but keep the information available for people looking for help.