video.py 文件源码

def __get_video_properties(self):
        self.frame_dims = (int(self.cap.get(cv2.CAP_PROP_FRAME_HEIGHT)),
                           int(self.cap.get(cv2.CAP_PROP_FRAME_WIDTH)))

        self.frame_count = int(self.cap.get(cv2.CAP_PROP_FRAME_COUNT))
        self.fps = self.cap.get(cv2.CAP_PROP_FPS)
        if self.cap.get(cv2.CAP_PROP_MONOCHROME) == 0.0:
            self.n_channels = 3
        else:
            self.n_channels = 1
        self.frame = np.zeros((self.frame_dims[0], self.frame_dims[1], self.n_channels), np.uint8)
        self.previous_frame = np.zeros((self.frame_dims[0], self.frame_dims[1], self.n_channels), np.uint8)