[Qt-interest] How to make GUI communicate with mplayer?

[Kermit Mei]

Hello Community!

    I use mplayer to play some music at background, such as mp3,wav and
so on. Now I write a GUI which can help the user to control the mplayer,
and also show some information to the user.  
    I must show the user the processing of the playing music, and music,
and also 'stop', 'play' and other informations. There's just some music,
not video.
    Then how can I do it? By the way, the mplayer is just a binary
programming which can run under linux.


Thanks.

Kermit Mei