本程序是视频图像处理的前期部分，功能是通过FPGA控制SAA7113实现视频解码，讲模拟全电视信号转变为数字视频信号，为后期的图像处理算法做准备。-This program is part of the video image pre-processing functions are realized by FPGA control SAA7113 video decoder, speaking analog composite video signal into a digital video