The following code :

Capture Cap(fc, NULL);
Cap.listCapabilities(0);

will output a list of capabilities with valid resolutions, framerates but no format (CA_NONE) whether I use a generic USB 2.0 camera or an FX3 eval board (That outputs a YUY2 stream).

UPDATE : The computer I first tested the lib on runs on Windows 8.1.

I tested it on my Surface Pro too (Win 8.1, two cameras), the lib could find 18 capabilities but only 3 of them didn't have an invalid format (CA_MJPEG instead of CA_NONE).

Hi there I just built this library on my Alienware R5 17 and see the following error:

-- Installing: /home/feoh/src/personal/Fugio/video_capture/install/linux-gcc-x86_64/bin/test_linux_device_list
+ rc=0
+ '[' 0 '!=' 0 ']'
+ cd /home/feoh/src/personal/Fugio/video_capture/build/dependencies/../../install/linux-gcc-x86_64/bin
+ ./easy_opengl_example
[0] idVendor: , idProduct: , driver: uvcvideo, card: Integrated_Webcam_HD: Integrate, bufinfo: usb-0000:00:14.0-7, version: 4.19.0, path: /dev/video1
[1] idVendor: , idProduct: , driver: uvcvideo, card: Integrated_Webcam_HD: Integrate, bufinfo: usb-0000:00:14.0-7, version: 4.19.0, path: /dev/video0
Error: cannot find any capability which conforms the set filters.
Error: cannot find any capability which conforms the set filters.
Error: cannot find any capability which conforms the set filters.
Error: failed to find a capability for the given width/height and supported formats.
Cannot open the capture device.

Is this a hardware support issue? Could you give me any sense of what work might be required to get the library running on my hardeware?

Thanks in advance for creating this great library!

Hi, I was trying to compile the library on Ubuntu 14.04, and it seems to be failing. At first I was getting errors about undeclaired 'printf' statements, which I fixed by including stdio in Types.h

However now I'm getting more errors. I've attached the output:

-- VideoCapture.USE_GENERATE_X86: On
-- VideoCapture.USE_GENERATE_IPHONE: Off
-- VideoCapture.USE_GENERATE_IPHONE_SIMULATOR: Off
-- VideoCapture.USE_GENERATE_RPI: Off
-- VideoCapture.USE_OPENGL: On
-- VideoCapture.USE_DECKLINK: Off
-- Configuring done
-- Generating done
-- Build files have been written to: /home/dmitri/Code/test/video_capture-master/build/build.release

• cmake --build . --target install --config Release
  [ 70%] Built target videocapture
  Linking CXX executable api_example
  libvideocapture.a(V4L2_Capture.cpp.o): In function ca::V4L2_Capture::getDevicesV4L2()': V4L2_Capture.cpp:(.text+0x136c): undefined reference toudev_new'
  V4L2_Capture.cpp:(.text+0x1380): undefined reference to udev_enumerate_new' V4L2_Capture.cpp:(.text+0x1395): undefined reference toudev_enumerate_add_match_subsystem'
  V4L2_Capture.cpp:(.text+0x139d): undefined reference to udev_enumerate_scan_devices' V4L2_Capture.cpp:(.text+0x13a5): undefined reference toudev_enumerate_get_list_entry'
  V4L2_Capture.cpp:(.text+0x13f0): undefined reference to udev_list_entry_get_next' V4L2_Capture.cpp:(.text+0x1404): undefined reference toudev_list_entry_get_name'
  V4L2_Capture.cpp:(.text+0x1412): undefined reference to udev_device_new_from_syspath' V4L2_Capture.cpp:(.text+0x1430): undefined reference toudev_device_get_devnode'
  V4L2_Capture.cpp:(.text+0x1482): undefined reference to udev_device_get_parent_with_subsystem_devtype' V4L2_Capture.cpp:(.text+0x149b): undefined reference toudev_device_get_sysattr_value'
  V4L2_Capture.cpp:(.text+0x14c2): undefined reference to udev_device_get_sysattr_value' V4L2_Capture.cpp:(.text+0x15c6): undefined reference toudev_enumerate_unref'
  V4L2_Capture.cpp:(.text+0x15ce): undefined reference to `udev_unref'
  collect2: error: ld returned 1 exit status
  make[2]: *** [api_example] Error 1
  make[1]: *** [CMakeFiles/api_example.dir/all] Error 2
  make: *** [all] Error 2
• cd /home/dmitri/Code/test/video_capture-master/build/../install/linux-gcc-x86_64/bin
  ./release_x86.sh: 26: cd: can't cd to /home/dmitri/Code/test/video_capture-master/build/../install/linux-gcc-x86_64/bin
• ./easy_opengl_example
  ./release_x86.sh: 28: ./release_x86.sh: ./easy_opengl_example: not found

Under which license is your code distributed? I couldn't find any license notice in the repository.

Without a license we have no legal right to redistribute the code or produce derived works from it. It's like "look but don't touch" license.