https://blog.wongcw.com/2018/11/20/kmplayer-v4-2-2-18-win-mac%e5%a4%9a%e8%aa%9e%e8%a8%80%e4%b8%ad%e6%96%87%e2%80%8b%e2%80%8b%e6%ad%a3%e5%bc%8f%e7%89%88-%e5%85%a8%e8%83%bd%e5%aa%92%e9%ab%94%e6%92%ad%e6%94%be%e5%99%a8/