QMediaPlayer don't play sound from QByteArray in macOS

QFile file("sound.mp3");
file.open(QIODevice::ReadOnly);
QByteArray arr = file.readAll();
QMediaPlayer *player = new QMediaPlayer(this);
QBuffer *buffer = new QBuffer(player);
buffer->setData(arr);
buffer->open(QIODevice::ReadOnly);
player->setMedia(QMediaContent(),buffer);
player->play();