zh`dZddlmZddlmZmZddlmZ ddlZn #e $rdZYnwxYwd dZ dS) z*Vision and face tracking utilities (stub).) annotations)OptionalTuple)LOGGERNreturnOptional[Tuple[int, int]]ctstjddStjd}|stjddS|\}}||stjddS|jdd\}}tj d||||fS)zCapture a single frame and return its dimensions. This function serves as a lightweight self-test that the camera can be accessed. It returns the width and height if successful. zOpenCV not availableNrzUnable to open camerazFailed to capture framezCaptured frame %sx%s) cv2rwarning VideoCaptureisOpenederrorreadreleaseshapeinfo)capretframeheightwidths /opt/SkullPi/vision.py capture_framers -...t 1  C <<>> ,---tJCKKMMM  .///tKOMFE K&v666 &=)rr) __doc__ __future__rtypingrrloggerrr Exceptionrrrr"s00""""""""""""""JJJJ CCCs ''