Phonon and file's metadata

[matulik]

Hello.
I want to create a simple music player based on phonon libraries.
In my GUI I've a tablewidget. It's working at music list.
But I don't know how to read values ARTIST or TITLE from files metadata to take it to tablewidget after "open files" operation.

I've a

QList<Phonon::MediaSource> files;

QList<Phonon::MediaSource> files;

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to keep music files in my program. Now, I want to their metadata valuse like this:

mediaObject->setCurrentSource(files[index]);
QMap<QString, QString> metaData = mediaObject->metaData();
QString title = metaData.values("TITLE");

mediaObject->setCurrentSource(files[index]);
QMap<QString, QString> metaData = mediaObject->metaData();
QString title = metaData.values("TITLE");

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But it doesn't works...

Anybody know how to help my?