Initial import from the monolithic Qt.
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Qt by Nokia
169
src/multimedia/audio/qaudiooutput_mac_p.h
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169
src/multimedia/audio/qaudiooutput_mac_p.h
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/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtMultimedia module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists for the convenience
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// of other Qt classes. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#ifndef QAUDIOOUTPUT_MAC_P_H
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#define QAUDIOOUTPUT_MAC_P_H
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#include <CoreServices/CoreServices.h>
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#include <CoreAudio/CoreAudio.h>
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#include <AudioUnit/AudioUnit.h>
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#include <AudioToolbox/AudioToolbox.h>
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#include <QtCore/qobject.h>
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#include <QtCore/qmutex.h>
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#include <QtCore/qwaitcondition.h>
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#include <QtCore/qtimer.h>
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#include <QtCore/qatomic.h>
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#include <QtMultimedia/qaudio.h>
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#include <QtMultimedia/qaudioformat.h>
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#include <QtMultimedia/qaudioengine.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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class QIODevice;
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class QAbstractAudioDeviceInfo;
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namespace QtMultimediaInternal
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{
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class QAudioOutputBuffer;
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}
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class QAudioOutputPrivate : public QAbstractAudioOutput
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{
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Q_OBJECT
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public:
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bool isOpen;
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int internalBufferSize;
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int periodSizeBytes;
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qint64 totalFrames;
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QAudioFormat audioFormat;
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QIODevice* audioIO;
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AudioDeviceID audioDeviceId;
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AudioUnit audioUnit;
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Float64 clockFrequency;
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UInt64 startTime;
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AudioStreamBasicDescription deviceFormat;
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AudioStreamBasicDescription streamFormat;
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QtMultimediaInternal::QAudioOutputBuffer* audioBuffer;
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QAtomicInt audioThreadState;
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QWaitCondition threadFinished;
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QMutex mutex;
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QTimer* intervalTimer;
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QAbstractAudioDeviceInfo *audioDeviceInfo;
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QAudio::Error errorCode;
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QAudio::State stateCode;
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QAudioOutputPrivate(const QByteArray& device, const QAudioFormat& format);
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~QAudioOutputPrivate();
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bool open();
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void close();
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QAudioFormat format() const;
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QIODevice* start(QIODevice* device);
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void stop();
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void reset();
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void suspend();
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void resume();
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int bytesFree() const;
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int periodSize() const;
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void setBufferSize(int value);
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int bufferSize() const;
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void setNotifyInterval(int milliSeconds);
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int notifyInterval() const;
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qint64 processedUSecs() const;
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qint64 elapsedUSecs() const;
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QAudio::Error error() const;
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QAudio::State state() const;
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void audioThreadStart();
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void audioThreadStop();
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void audioThreadDrain();
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void audioDeviceStop();
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void audioDeviceIdle();
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void audioDeviceError();
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void startTimers();
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void stopTimers();
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private slots:
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void deviceStopped();
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void inputReady();
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private:
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enum { Running, Draining, Stopped };
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static OSStatus renderCallback(void* inRefCon,
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AudioUnitRenderActionFlags* ioActionFlags,
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const AudioTimeStamp* inTimeStamp,
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UInt32 inBusNumber,
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UInt32 inNumberFrames,
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AudioBufferList* ioData);
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};
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif
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