MediaPlayer metaData undefined when playing mp3 stream

s710

I am working on an app for Ubuntu Touch (QT 5.12), and I want to play mp3 streams using the MediaPlayer. While the basic playback works fine, I cannot seem to access the meta data associated with it to get the artist, title and so on.

However I do know for sure that the stream actually contains the meta data, since artist/title/etc. are being displayed when playing the stream using desktop media players (e.g. Clementine on ubuntu).

This is my code:

import Ubuntu.Components 1.3
import QtQuick 2.7
import QtQuick.Layouts 1.3
import QtMultimedia 5.12

Item {
   id: mainPage
   anchors.fill: parent

   function getMetaData(metaData) {
         var text = ""

         text += "title: " + metaData.title + "\n"
         text += "subTitle: " + metaData.subTitle + "\n"
         text += "author: " + metaData.author + "\n"
         text += "comment: " + metaData.comment + "\n"
         text += "description: " + metaData.description + "\n"
         text += "category: " + metaData.category + "\n"
         text += "genre: " + metaData.genre + "\n"
         text += "language: " + metaData.language + "\n"
         text += "albumTitle: " + metaData.albumTitle + "\n"
         text += "albumArtist: " + metaData.albumArtist + "\n"
         text += "coverArtUrlSmall: " + metaData.coverArtUrlSmall + "\n"
         text += "coverArtUrlLarge: " + metaData.coverArtUrlLarge + "\n"
         text += "posterUrl: " + metaData.posterUrl + "\n"

      return text
   }

   MediaPlayer {
      id: audioPlayer
      audioRole: MusicRole
      source:      "https://s3-webradio.antenne.de/antenne/stream/mp3?aw_0_1st.playerid=radio.de"
      //source: "https://swr-swr3-live.cast.addradio.de/swr/swr3/live/mp3/128/stream.mp3"
      //source: "http://bob.hoerradar.de/radiobob-hartesaite-mp3-hq?sABC=5r65511s%230%23os634o21s23sr4751opp80560p2o2sr6%23fgernzf.enqvbobo.qr&amsparams=playerid:streams.radiobob.de;skey:1583698207"

      onPlaybackStateChanged: {
         console.log("State: " + audioPlayer.status + " Meta data: \n" + getMetaData(audioPlayer.metaData));
      }
   }

   Button {
      width: 96
      height: 96
      color: "white"
      iconName: "media-playback-start"
      onClicked: {
         audioPlayer.play()
      }
   }
}

Does anyone know why the meta data is not available? Do I have to add anything?

s710

Anyone??