Metadata information not available when playing a live stream

import QtQuick 2.2
import QtQuick.Controls 1.1
import QtQuick.Window 2.0
import QtMultimedia 5.0
ApplicationWindow {
    id: main
    title: qsTr("Hello World")
    width: 640
    height: 480
    MediaPlayer {
        id: playMusic
        autoPlay: true
        source: "http://uk3.internet-radio.com:11131/"
        onPositionChanged: {
            if (position > 0) console.log(metaData.title)
        }
    }
}