主要利用进程控制，传递参数给madplayer，画界面用到了Qt。-The program mainly use process control,the main program pass the parameter to madplayer.And the GUI use Qt.

用Qt creater开发的madplay 播放器前端QT4 GUI应用程序，运行于linux ARM9平台，实现播放、暂停、音量设置、上一曲、下一曲功能。-Qt creater developed madplay player front-end the QT4 GUI application program running on linux ARM9 platform, realized play, pause, volume settings, the last one, for a fu