#include <qmediaplayer.h>
#include <qmediaplaylist.h>
 
private slots:
    void statusChanged(QMediaPlayer::MediaStatus status);   
private:
    QMediaPlayer *player;
    QMediaPlaylist *playlist;

#include <qurl.h>
 
 
player = new QMediaPlayer(this);
player->setVolume(50); // set Volume
playlist = new QMediaPlaylist(this);
playlist->setMediaObject(player);
 
connect(player, SIGNAL(mediaStatusChanged(QMediaPlayer::MediaStatus)),
        this, SLOT(statusChanged(QMediaPlayer::MediaStatus)));
 
playlist->addMedia(QUrl::fromLocalFile("c:\\data\sample.mp3"));  // you can add as many media files as you want
 
player->play();

void QtPlayerAudio::statusChanged(QMediaPlayer::MediaStatus status) {
    switch (status) {
    case QMediaPlayer::LoadedMedia:
        player->play();
        break;
    default:
    	break;
    }
}