Background
Alright so I was able to set up my Windows 10 desktop with WSL2 in order to run Ubuntu 18.04. I'm trying to get the webcam to be accessible and have picked and pieced together the following tutorials in order to get myself to where I am.
- https://www.youtube.com/watch?v=IL7Jd9rjgrM
- https://github.com/rpasek/usbip-wsl2-instructions
- https://www.davecorder.org/windows-10/
- https://www.reddit.com/r/bashonubuntuonwindows/comments/gcbjfi/module_usbcore_not_found_in_directory/
- https://dmaiorino.com/?p=12
The Why
"Why would you go through this painstaking effort? Seems dumb." you might be telling yourself. Well I think that it's dumb that WSL2 doesn't have a USB pass-through, so there's that. But I develop on Windows traditionally, and with a recent computer vision project I'm undertaking that incorporates the Nvidia Isaac SDK (only available on Ubuntu 18.04) I was hoping to continue to use Windows to develop, and then Ubuntu 18.04 to test. I'm trying to stay away from dual booting because switching back and forth between OSs is time-consuming.
Current State
What I'm able to do is pass through the web camera using usbip from windows using the following commands.\usbip.exe bind -b 1-189.\usbipd.exe -d -4
and then on the linux side I connect it by running sudo usbip attach --remote=172.30.64.1 --busid=1-220
except that I put in my own remote address and busid
What that results in is the ability to see that the camera is attached and seen by linux, but no matter what program/library I use, none of them are able to open the webcam
Here are some outputs from different commands people have used to display camera information:
~$ v4l2-ctl --list-devices Logitech Webcam C930e (usb-vhci_hcd.0-1): /dev/video0 /dev/video1~$ v4l-info /dev/video0### v4l2 device info [/dev/video0] ###general info VIDIOC_QUERYCAP driver : "uvcvideo" card : "Logitech Webcam C930e" bus_info : "usb-vhci_hcd.0-1" version : 4.19.84 capabilities : 0x84a00001 [VIDEO_CAPTURE,?,?,STREAMING,(null)]standardsinputs VIDIOC_ENUMINPUT(0) index : 0 name : "Camera 1" type : CAMERA audioset : 0 tuner : 0 std : 0x0 [] status : 0x0 []video capture VIDIOC_ENUM_FMT(0,VIDEO_CAPTURE) index : 0 type : VIDEO_CAPTURE flags : 0 description : "YUYV 4:2:2" pixelformat : 0x56595559 [YUYV] VIDIOC_ENUM_FMT(1,VIDEO_CAPTURE) index : 1 type : VIDEO_CAPTURE flags : 1 description : "Motion-JPEG" pixelformat : 0x47504a4d [MJPG] VIDIOC_G_FMT(VIDEO_CAPTURE) type : VIDEO_CAPTURE fmt.pix.width : 640 fmt.pix.height : 480 fmt.pix.pixelformat : 0x56595559 [YUYV] fmt.pix.field : NONE fmt.pix.bytesperline : 1280 fmt.pix.sizeimage : 614400 fmt.pix.colorspace : SRGB fmt.pix.priv : 4276996862controls VIDIOC_QUERYCTRL(BASE+0) id : 9963776 type : INTEGER name : "Brightness" minimum : 0 maximum : 255 step : 1 default_value : 128 flags : unknown VIDIOC_QUERYCTRL(BASE+1) id : 9963777 type : INTEGER name : "Contrast" minimum : 0 maximum : 255 step : 1 default_value : 128 flags : unknown VIDIOC_QUERYCTRL(BASE+2) id : 9963778 type : INTEGER name : "Saturation" minimum : 0 maximum : 255 step : 1 default_value : 128 flags : unknown VIDIOC_QUERYCTRL(BASE+12) id : 9963788 type : BOOLEAN name : "White Balance Temperature, Auto" minimum : 0 maximum : 1 step : 1 default_value : 1 flags : unknown VIDIOC_QUERYCTRL(BASE+19) id : 9963795 type : INTEGER name : "Gain" minimum : 0 maximum : 255 step : 1 default_value : 0 flags : unknown VIDIOC_QUERYCTRL(BASE+24) id : 9963800 type : MENU name : "Power Line Frequency" minimum : 0 maximum : 2 step : 1 default_value : 2 flags : unknown VIDIOC_QUERYCTRL(BASE+26) id : 9963802 type : INTEGER name : "White Balance Temperature" minimum : 2000 maximum : 7500 step : 1 default_value : 4000 flags : INACTIVE VIDIOC_QUERYCTRL(BASE+27) id : 9963803 type : INTEGER name : "Sharpness" minimum : 0 maximum : 255 step : 1 default_value : 128 flags : unknown VIDIOC_QUERYCTRL(BASE+28) id : 9963804 type : INTEGER name : "Backlight Compensation" minimum : 0 maximum : 1 step : 1 default_value : 0 flags : unknown~$ sudo ffmpeg -y -t 5 -f video4linux2 -i /dev/video0 out.movffmpeg version 3.4.8-0ubuntu0.2 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04) configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared libavutil 55. 78.100 / 55. 78.100 libavcodec 57.107.100 / 57.107.100 libavformat 57. 83.100 / 57. 83.100 libavdevice 57. 10.100 / 57. 10.100 libavfilter 6.107.100 / 6.107.100 libavresample 3. 7. 0 / 3. 7. 0 libswscale 4. 8.100 / 4. 8.100 libswresample 2. 9.100 / 2. 9.100 libpostproc 54. 7.100 / 54. 7.100/dev/video0: Input/output error~$ ffmpeg -f v4l2 -video_size 640x480 -i /dev/video0 -frames 1 out.jpgffmpeg version 3.4.8-0ubuntu0.2 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04) configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared libavutil 55. 78.100 / 55. 78.100 libavcodec 57.107.100 / 57.107.100 libavformat 57. 83.100 / 57. 83.100 libavdevice 57. 10.100 / 57. 10.100 libavfilter 6.107.100 / 6.107.100 libavresample 3. 7. 0 / 3. 7. 0 libswscale 4. 8.100 / 4. 8.100 libswresample 2. 9.100 / 2. 9.100 libpostproc 54. 7.100 / 54. 7.100/dev/video0: Input/output errorI'm not sure if I don't have a specific library, driver, random other thing, but everything I've tried so far seems to not solve the problem.
Question
Linux sees the web camera, knows that it is a web camera, but is not processing the camera feed. What would you recommend I do to be able to process the video feed? I think this is an issue with my settings when I originally set up linux with menuconfig.Any help would be appreciated :)