diff -r 06b8e2af4411 -r 6fbed849b4f4 qtmobility/examples/audiooutput/audiooutput.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/qtmobility/examples/audiooutput/audiooutput.h Wed Jun 23 19:08:38 2010 +0300 @@ -0,0 +1,118 @@ +/**************************************************************************** +** +** 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 examples 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +class Generator : public QIODevice +{ + Q_OBJECT +public: + Generator(const QAudioFormat &format, qint64 durationUs, int frequency, QObject *parent); + ~Generator(); + + void start(); + void stop(); + + qint64 readData(char *data, qint64 maxlen); + qint64 writeData(const char *data, qint64 len); + qint64 bytesAvailable() const; + +private: + void generateData(const QAudioFormat &format, qint64 durationUs, int frequency); + +private: + qint64 m_pos; + QByteArray m_buffer; +}; + +class AudioTest : public QMainWindow +{ + Q_OBJECT +public: + AudioTest(); + ~AudioTest(); + +private: + void initializeWindow(); + void initializeAudio(); + void createAudioOutput(); + +private: + QTimer* m_pullTimer; + + // Owned by layout + QPushButton* m_modeButton; + QPushButton* m_suspendResumeButton; + QComboBox* m_deviceBox; + + QAudioDeviceInfo m_device; + Generator* m_generator; + QAudioOutput* m_audioOutput; + QIODevice* m_output; // not owned + QAudioFormat m_format; + + bool m_pullMode; + QByteArray m_buffer; + + static const QString PushModeLabel; + static const QString PullModeLabel; + static const QString SuspendLabel; + static const QString ResumeLabel; + +private slots: + void notified(); + void pullTimerExpired(); + void toggleMode(); + void toggleSuspendResume(); + void stateChanged(QAudio::State state); + void deviceChanged(int index); +}; +