motion_tracker.py 文件源码

def update3(self):
        # keep looping infinitely until the thread is stopped
        stream = io.BytesIO()
        with picamera.PiCamera() as camera:

            for f in camera.capture_continuous(stream, format='jpeg'):  # self.stream:
                # grab the frame from the stream and clear the stream in
                # preparation for the next frame
                self.frame = f.array
                self.rawCapture.truncate(0)

                # if the thread indicator variable is set, stop the thread
                # and resource camera resources
                if self.stopped:
                    self.stream.close()
                    self.rawCapture.close()
                    self.camera.close()
                    return