一个函数，该函数可以实现将未经压缩的AVI文件中的每一帧提取出来，存为bmp格式图片文件。-A function, which can be achieved will be uncompressed AVI files extracted from each fr a me, saved as bmp format image files.

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.

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 fr a mes, each fr a me and save it as a BMP image format.