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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtMultimedia module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** 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
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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;
namespace
{
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;
QAudioInputBuffer* audioBuffer;
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
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