tronix.py 文件源码

def __enter__(self):
        self.camera = picamera.PiCamera()
        self.camera.__enter__()
        self.camera.contrast = 60
        self.camera.brightness = 50
        self.camera.resolution = (640,480)
        self.camera.frame_rate = 24
        sleep(1)
        self.camera.start_preview()

        self.camera_stream = picamera.PiCameraCircularIO(self.camera, size=640*480*3)
        self.camera.start_recording(self.camera_stream, format='rgb')
        self.camera.wait_recording(1)
        #self.camera.awb_mode = 'off'
        #self.camera.awb_gains = (1.8, 1.5)
        #self.camera.shutter_speed = 30000
        #self.camera.exposure_mode = 'off'
        #sleep(20)
        return self