/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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** This file is part of the test suite of the Qt Toolkit.

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** No Commercial Usage

** This file contains pre-release code and may not be distributed.

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** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

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** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

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**

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****************************************************************************/

#include <QtGui>

#include <QAudioOutput>

#include <QAudioDeviceInfo>

#include <QAudioInput>

class Window2 : public QWidget

{

    Q_OBJECT

public slots:

//![0]

    void stateChanged(QAudio::State newState)

    {

        switch(newState) {

            case QAudio::StopState:

            if (input->error() != QAudio::NoError) {

                // Error handling

            } else {

            }

            break;

//![0]

        default:

            ;

        }

    }

private:

    QAudioInput *input;

};

class Window : public QWidget

{

    Q_OBJECT

public:

    Window()

    {

        output = new QAudioOutput;

        connect(output, SIGNAL(stateChanged(QAudio::State)),

            this, SLOT(stateChanged(QAudio::State)));

    }

private:

    void setupFormat()

    {

//![1]

        QAudioFormat format;

        format.setFrequency(44100);

//![1]

        format.setChannels(2);

        format.setSampleSize(16);

        format.setCodec("audio/pcm");

        format.setByteOrder(QAudioFormat::LittleEndian);

//![2]

        format.setSampleType(QAudioFormat::SignedInt);

        QAudioDeviceInfo info(QAudioDeviceInfo::defaultOutputDevice());

        if (!info.isFormatSupported(format))

            format = info.nearestFormat(format);

//![2]

    }

public slots:

//![3]

    void stateChanged(QAudio::State newState)

    {

        switch (newState) {

            case QAudio::StopState:

                if (output->error() != QAudio::NoError) {

                    // Perform error handling

                } else {

                    // Normal stop

                }

                break;

//![3]

            // Handle 

            case QAudio::ActiveState:

                // Handle active state...

                break;

            break;

        default:

            ;

        }

    }

private:

    QAudioOutput *output;

};

int main(int argv, char **args)

{

    QApplication app(argv, args);

    Window window;

    window.show();

    return app.exec();        

}

#include "main.moc"