OpenCV can't capture video recording from camera

[berak]

@konstitycii

	string gst_cmd = "v4l2src device=/dev/video0 ! video/x-bayer,format=grbg,depth=8,width=1920,height=1080 ! bayer2rgbneon ! videoconvert ! jpegenc ! multifilesink location=live.avi";
	cv::VideoCapture cap(gst_cmd,cv::CAP_V4L2);

use CAP_GSTREAMER for pipelines like that, V4L is used for usb webcams (only)

check build logs or: cout << getBuildInformation(); to see, if what you built supports it !
(again, you have to build the opencv libs with gstreamer dev libs installed)