实现从摄像装置读入视频文件，然后对视频文件进行处理。-Reading from a camera device into the video file, and then on the video file for processing.

云台是一种设备 是专门用于监控时调整摄像头位置的。摄像头安装于云台之上，从而调整监视器位置-PTZ is a device that is specifically designed to monitor to adjust the camera position. The camera is mounted on top of the head, which adjust the monitor position