title: mpg123 library with Qt
body: <p>I want add support for playback of mp3 file in my Qt app for embedded linux.</p>
  
  <p>I'm not able to use phonon in Qt. After adding QT += phonon in .pro file it gives me the following error during compilation :
  /usr/lib/gcc/i486-linux-gnu/4.4.1/../../../../lib/libphonon.so: undefined reference to `QWidget::x11Event(_XEvent*)'</p>
  
  <p>/usr/lib/gcc/i486-linux-gnu/4.4.1/../../../../lib/libphonon.so: undefined reference to `QDataStream::QDataStream(QByteArray*, int)'</p>
  
  <p>collect2: ld returned 1 exit status</p>
  
  <p>So now i'm thinking of using the mpg123 lib for decoding mp3 files.</p>
  
  <p>I need help integrating the library in Qt. I've never used a pure c++ library in Qt before so i don't have much idea on how to integrate it.</p>