how to call gstreamer as an external process in Qt to play incoming audio streams?

Question

im now using mplayer to play incoming audio streams from network. i need to use gstreamer to play that. my code to play the audio using mplayer is like this: arg<<"http://192.168.0.2/img/video.asf"&lt;&lt;"-novideo"; program="mplayer"; process=new QProcess(this); process->start(program,arg);## Heading ##