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Diffstat (limited to 'src/multimedia/audio/qaudiooutput_mac_p.h')
| -rw-r--r-- | src/multimedia/audio/qaudiooutput_mac_p.h | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/src/multimedia/audio/qaudiooutput_mac_p.h b/src/multimedia/audio/qaudiooutput_mac_p.h new file mode 100644 index 0000000..752905c --- /dev/null +++ b/src/multimedia/audio/qaudiooutput_mac_p.h @@ -0,0 +1,167 @@ +/**************************************************************************** +** +** Copyright (C) 2010 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 QAUDIOOUTPUT_MAC_P_H +#define QAUDIOOUTPUT_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/qtimer.h> +#include <QtCore/qatomic.h> + +#include <QtMultimedia/qaudio.h> +#include <QtMultimedia/qaudioformat.h> +#include <QtMultimedia/qaudioengine.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +class QIODevice; + +namespace QtMultimediaInternal +{ +class QAudioOutputBuffer; +} + +class QAudioOutputPrivate : public QAbstractAudioOutput +{ + Q_OBJECT + +public: + bool isOpen; + int internalBufferSize; + int periodSizeBytes; + qint64 totalFrames; + QAudioFormat audioFormat; + QIODevice* audioIO; + AudioDeviceID audioDeviceId; + AudioUnit audioUnit; + Float64 clockFrequency; + UInt64 startTime; + AudioStreamBasicDescription deviceFormat; + AudioStreamBasicDescription streamFormat; + QtMultimediaInternal::QAudioOutputBuffer* audioBuffer; + QAtomicInt audioThreadState; + QWaitCondition threadFinished; + QMutex mutex; + QTimer* intervalTimer; + + QAudio::Error errorCode; + QAudio::State stateCode; + + QAudioOutputPrivate(const QByteArray& device, const QAudioFormat& format); + ~QAudioOutputPrivate(); + + bool open(); + void close(); + + QAudioFormat format() const; + + QIODevice* start(QIODevice* device); + void stop(); + void reset(); + void suspend(); + void resume(); + + int bytesFree() 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 audioThreadDrain(); + + void audioDeviceStop(); + void audioDeviceIdle(); + void audioDeviceError(); + + void startTimers(); + void stopTimers(); + +private slots: + void deviceStopped(); + void inputReady(); + +private: + enum { Running, Draining, Stopped }; + + static OSStatus renderCallback(void* inRefCon, + AudioUnitRenderActionFlags* ioActionFlags, + const AudioTimeStamp* inTimeStamp, + UInt32 inBusNumber, + UInt32 inNumberFrames, + AudioBufferList* ioData); +}; + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif |