mainloop_v4l2    1144 modules/videoio/src/cap_libv4l.cpp static void mainloop_v4l2(CvCaptureCAM_V4L* capture) {
mainloop_v4l2    1223 modules/videoio/src/cap_v4l.cpp static void mainloop_v4l2(CvCaptureCAM_V4L* capture) {