Available mjpg-streamer configuration options

Vittaly · December 21, 2021, 7:29pm

@PrintedWeezl thank you for answer, but it not what I want. I think that the service should work all time but if has no requests by http from octo, camera shoud be disabled until new request will income

Charlie_Powell · December 21, 2021, 9:33pm

That's not possible with mjpg streamer.

Dinwiggy · February 3, 2022, 8:36pm

It might be worth documenting the --softfps option, which limits FPS by dropping frames. It works for camera_usb_options, not sure about camera_raspi_options (I don't have one; a quick source search suggests it is not supported).

For my use, I'm more interested in resolution than frame rate. It seems that the -f option simply attempts to set the camera frame rate; my camera (Wyze Cam v2 with webcam firmware) seems to ignore that, and I always get the same frame rate (15fps). These frame rates overwhelm my Pi3 at higher resolutions. The --softfps option drops frames to achieve a target framerate (per the documentation), and achieves for me what I was hoping -f would do, limiting framerate to limit performance impact of using higher resolution.

The option isn't listed on the linked documentation page, but is described in the source:

github.com

jacksonliam/mjpg-streamer/blob/85f89a8c321e799fabb1693c5d133f3fb48ee748/mjpg-streamer-experimental/plugins/input_uvc/input_uvc.c#L550

    
      
          " [-e | --every_frame ]..: drop all frames except numbered\n" \
          " [-n | --no_dynctrl ]...: do not initalize dynctrls of Linux-UVC driver\n" \
          " [-l | --led ]..........: switch the LED \"on\", \"off\", let it \"blink\" or leave\n" \
          "                          it up to the driver using the value \"auto\"\n" \
          " [-t | --tvnorm ] ......: set TV-Norm pal, ntsc or secam\n" \
          " [-u | --uyvy ] ........: Use UYVY format, default: MJPEG (uses more cpu power)\n" \
          " [-y | --yuv  ] ........: Use YUV format, default: MJPEG (uses more cpu power)\n" \
          " [-fourcc ] ............: Use FOURCC codec 'argopt', \n" \
          "                          currently supported codecs are: RGB24, RGBP \n" \
          " [-timestamp ]..........: Populate frame timestamp with system time\n" \
          " [-softfps] ............: Drop frames to try and achieve this fps\n" \
          "                          set your camera to its maximum fps to avoid stuttering\n" \
          " [-timeout] ............: Timeout for device querying (seconds)\n" \
          " [-dv_timings] .........: Enable DV timings queriyng and events processing\n" \
          " ---------------------------------------------------------------\n");
          
          
fprintf(stderr, "\n"\
          " Optional parameters (may not be supported by all cameras):\n\n"\
          " [-br ].................: Set image brightness (auto or integer)\n"\
          " [-co ].................: Set image contrast (integer)\n"\
          " [-sh ].................: Set image sharpness (integer)\n"\

iPatrick · October 30, 2023, 11:01pm

Do you know if there's an option to disabe the fish eye?

JasonCL3 · March 19, 2024, 6:30am

Hi, what should I do to make it possible to have a screen display on octoprint after the usb camera is plugged into the laptop? Thank you very much!

PrintedWeezl · March 19, 2024, 6:31am

Just install a streamer on the laptop

JasonCL3 · March 19, 2024, 6:46am

Thank you for your reply! I would like to ask how exactly streamer should be downloaded and used? I found mjpg-streamer on github and downloaded it before, I didn't find anything like a setup, so I don't know how I should use it, and I'd appreciate some guidance. Thanks a million!

PrintedWeezl · March 19, 2024, 9:01am

Oh the laptop is running windows

Mjpeg streamer is a Linux application. You could probably get it running via wsl, but that could be a bit of work.

Check out the "install webcam server" part of the OctoPrint on windows guide

JasonCL3 · March 19, 2024, 11:18am

Thank you for your answer, but why is it that when I follow that tutorial like this: http://<ip_of_your_pc>:8081/video.mjpg, it still doesn't show the screen?