picamera2_fps.py 文件源码

def update(self):
        self.stream_fps.start()
        # keep looping infinitely until the thread is stopped
        for frameBuf in self.stream:
            self.stream_fps.update()
            # grab the frame from the stream and clear the stream in preparation for the next frame
            self.frame = np.rot90(frameBuf.array)
            self.rawCapture.truncate(0)
            # if the thread indicator variable is set, stop the thread
            if self.running == False:
                self.camera.led = False
                return