对未压缩的AVI视频文件进行解压,提取出所有帧，并将每帧保存为BMP图像格式.,For uncompressed AVI video files to extract, extract all the frames, each frame and save it as a BMP image format.

这个算法实现了把avi视频转化为bmp的图像，调试通过。-The implementation of this algorithm put into avi video bmp images, debugging through.