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

**

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

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** Contact: Nokia Corporation (qt-info@nokia.com)

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** This file is part of the QtMultimedia module of the Qt Toolkit.

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** contained in the Technology Preview License Agreement accompanying

** this package.

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** 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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** $QT_END_LICENSE$

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

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists for the convenience

// of other Qt classes.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#ifndef QAUDIOINPUT_MAC_P_H

#define QAUDIOINPUT_MAC_P_H

#include <CoreServices/CoreServices.h>

#include <CoreAudio/CoreAudio.h>

#include <AudioUnit/AudioUnit.h>

#include <AudioToolbox/AudioToolbox.h>

#include <QtCore/qobject.h>

#include <QtCore/qmutex.h>

#include <QtCore/qwaitcondition.h>

#include <QtCore/qatomic.h>

#include <QtMultimedia/qaudio.h>

#include <QtMultimedia/qaudioformat.h>

#include <QtMultimedia/qaudioengine.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

class QTimer;

class QIODevice;

{

class QAudioInputBuffer;

}

class QAudioInputPrivate : public QAbstractAudioInput

{

    Q_OBJECT

public:

    bool            isOpen;

    int             periodSizeBytes;

    int             internalBufferSize;

    qint64          totalFrames;

    QAudioFormat    audioFormat;

    QIODevice*      audioIO;

    AudioUnit       audioUnit;

    AudioDeviceID   audioDeviceId;

    Float64         clockFrequency;

    UInt64          startTime;

    QAudio::Error   errorCode;

    QAudio::State   stateCode;

    QMutex          mutex;

    QWaitCondition  threadFinished;

    QAtomicInt      audioThreadState;

    QTimer*         intervalTimer;

    AudioStreamBasicDescription streamFormat;

    AudioStreamBasicDescription deviceFormat;

    QAudioInputPrivate(const QByteArray& device, QAudioFormat const& format);

    ~QAudioInputPrivate();

    bool open();

    void close();

    QAudioFormat format() const;

    QIODevice* start(QIODevice* device);

    void stop();

    void reset();

    void suspend();

    void resume();

    void idle();

    int bytesReady() const;

    int periodSize() const;

    void setBufferSize(int value);

    int bufferSize() const;

    void setNotifyInterval(int milliSeconds);

    int notifyInterval() const;

    qint64 processedUSecs() const;

    qint64 elapsedUSecs() const;

    QAudio::Error error() const;

    QAudio::State state() const;

    void audioThreadStart();

    void audioThreadStop();

    void audioDeviceStop();

    void audioDeviceFull();

    void audioDeviceError();

    void startTimers();

    void stopTimers();

private slots:

    void deviceStopped();

private:

    enum { Running, Stopped };

    // Input callback

    static OSStatus inputCallback(void* inRefCon,

                                    AudioUnitRenderActionFlags* ioActionFlags,

                                    const AudioTimeStamp* inTimeStamp,

                                    UInt32 inBusNumber,

                                    UInt32 inNumberFrames,

                                    AudioBufferList* ioData);

};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QAUDIOINPUT_MAC_P_H