void screensave(time_t t_current);
int parse_opts(int argc, char **argv);
+
+int do_capture();
+
+int get_one_frame(CvCapture* capture, IplImage* &frame);
+
+void get_frames(CvCapture* capture, CvHaarClassifierCascade* cascade);
+
+void update_idle(int faces_total);