VMR7/9 Render在win7上遇到的缩放锯齿问题
Submitted by hubdog on Wed, 2013-09-25 23:42
http://social.msdn.microsoft.com/Forums/windowsdesktop/en-US/dfae6b1d-11...
看上去在win7上，微软关闭了缩放的高质量插值算法，所以我们需要使用EVR代替VMR7和VMR9
http://stackoverflow.com/questions/8775426/directshow-render-window-show...
