Play mp3 from usb in qt 5

BerkayTtk

hi,
i want to play mp3 from qt5 usb but i failed can you help for an idea or example ? thanks.

my usb read code;

}
QString driveInfo,drive;

  foreach (const QStorageInfo &storage, QStorageInfo::mountedVolumes()) {
      if (storage.isValid()) {
          driveData=driveInfo = storage.rootPath();
      }

qDebug() << driveData;
}

Christian Ehrlicher

@BerkayTtk said in Play mp3 from usb in qt 5:

but i failed

my usb read code;

You don't read anything here - you just iterate over all mounted devices...
You should take a look into e.g. QDir to read the contents of a directory.

BerkayTtk

thanks ,i will check it.

BerkayTtk

QDir directory(driveData);
QStringList files = directory.entryList(QStringList() << ".mp3" << ".MP3",QDir::Files);

foreach(QString filenames, files){
QList<QStandardItem *> items;
items.append(new QStandardItem(QDir(driveData+filenames).dirName()));
items.append(new QStandardItem(driveData+filenames));
m_playListModel4->appendRow(items);
m_playlist4->addMedia(QUrl::fromLocalFile(driveData+filenames));
not working

jsulm

@BerkayTtk said in Play mp3 from usb in qt 5:

not working

A bit more information would be good. What exactly foes not work? What does files contain?

BerkayTtk

I am trying to read mp3 files from usb exactly but fail

SGaist

Hi,

@BerkayTtk said in Play mp3 from usb in qt 5:

QDir directory(driveData);
QStringList files = directory.entryList(QStringList() << ".mp3" << ".MP3",QDir::Files);

foreach(QString filenames, files){
QList<QStandardItem *> items;
items.append(new QStandardItem(QDir(driveData+filenames).dirName()));
items.append(new QStandardItem(driveData+filenames));
m_playListModel4->appendRow(items);
m_playlist4->addMedia(QUrl::fromLocalFile(driveData+filenames));
not working

What exactly does driveData+filenames contain ? Print it on your console. I suspect the path is invalid.

jsulm

@BerkayTtk said in Play mp3 from usb in qt 5:

I am trying to read mp3 files from usb exactly but fail

This does not provide more information.
You also did not answer the two questions I asked...

BerkayTtk

@jsulm i am sorry,
here is the part that doesn't work "m_playlist4->addMedia(QUrl::fromLocalFile(driveData+filenames)); " it doesn't show and play mp3 files in qdebug but I solved the problem " qstring drivedata; " I wrote this code at the beginning and it worked, thanks everybody.

jsulm

@BerkayTtk said in Play mp3 from usb in qt 5:

driveData+filenames

As @SGaist suggested: print out driveData+filenames to see what the resulting string looks like.
My guess is that there is no separator ('/') between the folder and filename.

BerkayTtk

@jsulm yes, i added that too ,now working.