c++opencvubuntu-16.04v4l

Missing libv4l for OpenCV

I am trying to use my webcam with OpenCV to run my application. However, when I tried to get the frame with videoCapture, and it gives me this error.

VIDEOIO ERROR: V4L2: Pixel format of incoming image is unsupported by OpenCV Sample: ../test/test.cpp:3331

OpenCV build configuration

After checking the issue, some suggestions saying that to use this command to run the app 

LD_PRELOAD="/usr/lib/libv4l/v4l2convert.so" ./MY-APP

But I don't have this library file in the system /usr/lib/libv4l/v4l2convert.so

I am not sure where I could get this library, or does it come with OpenCV itself?

Thanks

Edit: Also tried

sudo apt-get install libv4l-0
[sudo] password for nvidia: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
libv4l-0 is already the newest version (1.10.0-1).
libv4l-0 set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Solution

  • I found this lib here

    It is a link to ubuntu packages, the package that should have the lib is libv4l-0, as you can see in the link.