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jacksonliam / mjpg-streamer

Fork of http://sourceforge.net/projects/mjpg-streamer/
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Unable to select secondary webcam #334

Closed biarkiw closed 2 years ago

biarkiw commented 2 years ago

I am running Octoprint on a Ubuntu laptop, and I recently picked up a Logitech C270 to attach to my printer. Octoprint works great and I have gotten mjpg-streamer working, however whenever I attempt to start the stream it defaults to /dev/video0 even when I send the command
mjpg_streamer -i 'input_uvc.so [-d /dev/video2]' -o output_http.so

I get the output with a working stream from the built in camera MJPG Streamer Version.: 2.0 i: Using V4L2 device.: /dev/video0 i: Desired Resolution: 640 x 480 i: Frames Per Second.: -1 i: Format............: JPEG i: TV-Norm...........: DEFAULT

and when I put in the command mjpg_streamer -i 'input_uvc.so [-d /dev/video2]' -o output_http.so

I get MJPG Streamer Version.: 2.0 i: Using V4L2 device.: (null) i: Desired Resolution: 640 x 480 i: Frames Per Second.: -1 i: Format............: JPEG i: TV-Norm...........: DEFAULT i: init_VideoIn failed

Any assistance in solving this issue would be much appreciated, I know my setup is abnormal, and therefore is likely more difficult to solve issues on.

jacksonliam commented 2 years ago

The square brackets [ ] around the -d argument are wrong, remove those and it should work.

Why did you add them?

biarkiw commented 2 years ago

The bracket's weren't the issue, as the second command wasn't supposed to have them in it and I must have copied the wrong command and not noticed. Somehow restarting my system before I start the camera every-time is making it work, and I no longer get the null error, unless I have had the camera active during this boot

biarkiw commented 2 years ago

Also the reason I added them was due to the documentation, as I wasn't sure if they should be left or included