CvCaptureCAM_V4L_CPP 1856 modules/videoio/src/cap_libv4l.cpp class CvCaptureCAM_V4L_CPP : CvCapture
CvCaptureCAM_V4L_CPP 2873 modules/videoio/src/cap_v4l.cpp class CvCaptureCAM_V4L_CPP : CvCapture