将avi视频流转化成bmp的图片，其中使用了opencv函数库-avi video will flow into bmp photographs, which use the OpenCV library

這是個可以播放avi並把正在播放的frame存成bmp的簡單小程式,需要安裝openCV。程式碼包含簡易的avi開檔，存圖，程式執行後，按空白鍵會撥放影片，按s會存圖。,This is a can play avi and put the frame is playing a simple Save as bmp small program to install required openCV. Contains simple code to open avi files, keep maps,

use imput bmp image to build avi video