how to setup 2 usbwebcams to use webrtc | Mainsail | Page 1

rapid badge Aug 1, 2025, 10:55 PM

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i found both cams in crowsnest log files and used that data to setup crowsnest configuration. see attached. when i went to add the webcams, crowsnest found them as adaptive mjpeg services (webcam and webcam2) but not as webrtc services. i saw a post that suggested bumping up the gpu memory to 256 and so i tried that, and then to 512 from 128 but still no webrtc feed.

i am thinking that there is something wrong with crowsnest configuration but i cant figure out what.

let me know if you need other info to help debug this issue. thanks.

📎 crowsnest_config_file.txt

real oxide Aug 1, 2025, 11:15 PM

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We obv need a log, as we basically have no information about your specific setup

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when i went to add the webcams, crowsnest found them as adaptive mjpeg services (webcam and webcam2) but not as webrtc services
Big misunderstanding here. Crowsnest did not find anything. Crowsnest is just starting backends providing streams. You then add in Mainsail webcams, that point to specific streams

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And why did you enable rtsp? Activating more stuff that you don't use will not fix your stuff that is not working

rapid badge Aug 3, 2025, 2:42 PM

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here is crowsnest log. do you need an other log files? i want to use rtsp because it is supposed to reduce video bandwidth improve performance

📎 crowsnest.log

real oxide Aug 3, 2025, 5:46 PM

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Do you actually want to use rtsp and not webrtc? rtsp needs an extra player like vlc media player

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Set log_level: debug and delete_log: true and send a new log

rapid badge Aug 3, 2025, 6:36 PM

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no i was trying to use webrtc, but i wasnt having any success. i will reset log level and send you results.

real oxide Aug 3, 2025, 6:38 PM

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If you just want to use WebRTC, disable RTSP, just to be sure that it's not conncted to that problem.

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Also here the docs on how to use webrtc correctly, just that you have set it correct: https://crowsnest.mainsail.xyz/configuration/cam-section#a-small-note-on-webrtc

[cam] section | Crowsnest

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Besides wrong settings in Mainsail, something is definitely wrong in your software, as one camera-streamer is failing, so I need the log

rapid badge Aug 3, 2025, 7:06 PM

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ok here is the log file you asked for. failing webrtc for cam1 but not cam2. any way to check if cam1 is not suitable for webrtc setting?

📎 crowsnest_log_1159_-_08032025.txt

real oxide Aug 3, 2025, 7:16 PM

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As I thought, 8080, is just bound already by some other service

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Set the port to e.g. 8082 and use /webcam3/webrtc and it should work

#how to setup 2 usbwebcams to use webrtc