diff -r 000000000000 -r 876b1a06bc25 examples/audioinput/audioinput.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/examples/audioinput/audioinput.h Wed Aug 25 15:49:42 2010 +0300 @@ -0,0 +1,135 @@ +/**************************************************************************** +** +** 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 + +class AudioInfo : public QIODevice +{ + Q_OBJECT +public: + AudioInfo(const QAudioFormat &format, QObject *parent); + ~AudioInfo(); + + void start(); + void stop(); + + qreal level() const { return m_level; } + + qint64 readData(char *data, qint64 maxlen); + qint64 writeData(const char *data, qint64 len); + +private: + const QAudioFormat m_format; + quint16 m_maxAmplitude; + qreal m_level; // 0.0 <= m_level <= 1.0 + +signals: + void update(); +}; + + +class RenderArea : public QWidget +{ + Q_OBJECT + +public: + RenderArea(QWidget *parent = 0); + + void setLevel(qreal value); + +protected: + void paintEvent(QPaintEvent *event); + +private: + qreal m_level; + QPixmap m_pixmap; +}; + +class InputTest : public QMainWindow +{ + Q_OBJECT +public: + InputTest(); + ~InputTest(); + +private: + void initializeWindow(); + void initializeAudio(); + void createAudioInput(); + +private slots: + void refreshDisplay(); + void notified(); + void readMore(); + void toggleMode(); + void toggleSuspend(); + void stateChanged(QAudio::State state); + void deviceChanged(int index); + +private: + // Owned by layout + RenderArea *m_canvas; + QPushButton *m_modeButton; + QPushButton *m_suspendResumeButton; + QComboBox *m_deviceBox; + + QAudioDeviceInfo m_device; + AudioInfo *m_audioInfo; + QAudioFormat m_format; + QAudioInput *m_audioInput; + QIODevice *m_input; + bool m_pullMode; + QByteArray m_buffer; + + static const QString PushModeLabel; + static const QString PullModeLabel; + static const QString SuspendLabel; + static const QString ResumeLabel; +}; +