[alsa-devices] Let ALSA users pick a sound card

[Cat-Ion]

Currently ALSA users can't pick an output sound card. With this patch, it's possible to enter (and save) usual ALSA strings like "hw:0,0" to do so.

[csete]

I would prefer not putting an #ifdef inside an expression. Perhaps something like this instead:

#if defined(WITH_PULSEAUDIO) || defined(GQRX_OS_MACX)
    if (idx > 0)
    {
        qDebug() << "Output device" << idx << ":" << QString(outDevList[idx-1].get_name().c_str());
        m_settings->setValue("output/device", QString(outDevList[idx-1].get_name().c_str()));
    }
#else
    if (idx > 0 || ui->outDevCombo->currentText() != "Default")
    {
        qDebug() << "Output device:" << ui->outDevCombo->currentText();
        m_settings->setValue("output/device", ui->outDevCombo->currentText());
    }
#endif
    else
    {
        m_settings->remove("output/device");
    }

[csete]

Thanks.

[Cat-Ion]

Thanks for merging :)