wince 下用directshow显示图像，并具有保存jpg格式的图片，和录制视频的功能-the wince with directshow display image and save the jpg image and video recording function

将JPG文件转为AVI文件，很有用的，可以将用USB摄象头下的 图片保存为AVI WINCE下用的-The JPG file into AVI files, very useful, can be with the image saved as AVI USB camera with under WINCE