MP3 Tags

[Geysser]

Hi to everyone!
I would need some advice on reading mp3 tags from mp3 files (ID3v1 for now-you have to walk before you fly!) but I can't find help anywhere! I'm fairly new to bot Qt and C++ but I consider myself a pretty quick learner in programming languages. I've been programming in VB.NET for the past three years, but now I see no option but to sharpen my teeth in C++ too!
The question is pretty obvious: how do I read MP3 Tags?
Here is the code for adding files in a tree widget (through an action):

void wndMain::on_actAddFiles_triggered()//Add files
{
    QString music_location=QDesktopServices::storageLocation(QDesktopServices::MusicLocation);
    QStringList sFiles=QFileDialog::getOpenFileNames(this,tr("Add mp3 files..."),music_location,
                                                      "Mp3 files (*.mp3)");
    //Check if something is selected
    if (sFiles.isEmpty())
        return;
    //If yes, add them to the list
    foreach (QString sFile,sFiles)
    {
        //setup an item
        QTreeWidgetItem *item=new QTreeWidgetItem(ui->trwLibrary);
        QFileInfo f(sFile);
        item->setText(0,f.fileName());
        item->setText(1,f.filePath());
        item->setText(2,QString::number(f.size()/1024)+" KB");
        item->setIcon(0,QIcon("icons/library/track.svg"));
        //Add item to list
        ui->trwLibrary->addTopLevelItem(item);
    }
}

void wndMain::on_actAddFiles_triggered()//Add files
{
    QString music_location=QDesktopServices::storageLocation(QDesktopServices::MusicLocation);
    QStringList sFiles=QFileDialog::getOpenFileNames(this,tr("Add mp3 files..."),music_location,
                                                      "Mp3 files (*.mp3)");
    //Check if something is selected
    if (sFiles.isEmpty())
        return;
    //If yes, add them to the list
    foreach (QString sFile,sFiles)
    {
        //setup an item
        QTreeWidgetItem *item=new QTreeWidgetItem(ui->trwLibrary);
        QFileInfo f(sFile);
        item->setText(0,f.fileName());
        item->setText(1,f.filePath());
        item->setText(2,QString::number(f.size()/1024)+" KB");
        item->setIcon(0,QIcon("icons/library/track.svg"));
        //Add item to list
        ui->trwLibrary->addTopLevelItem(item);
    }
}

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I've been thinking about a small piece of code in the foreach loop, to quickly read the tags and subsequently display them in the tree widget. I know that I have to extract the last 128 bytes of the file and then parse them to extract the tags from there, but I have no clue how to do this-and the documentation wasn't helpful at all!
So, any help would be dearly appreciated.

Last but not least, I'm running on Ubuntu 9.10, with Qt 4.6, Qt Creator 1.3.0.

[nix]

Hi,

You can take a look to http://developer.kde.org/~wheeler/taglib.html, it works fine for me.

[Geysser]

Thanks nix! I've already seen it! But this solution is huge and complicated for me! Not to mention that I would like to do it on my own!