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-/****************************************************************************
-**
-** Copyright (C) 2017 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the name of The Qt Company Ltd nor the names of its
-** contributors may be used to endorse or promote products derived
-** from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef AUDIOINPUT_H
-#define AUDIOINPUT_H
-
-#include <QAudioInput>
-#include <QByteArray>
-#include <QComboBox>
-#include <QMainWindow>
-#include <QObject>
-#include <QPixmap>
-#include <QPushButton>
-#include <QSlider>
-#include <QWidget>
-#include <QScopedPointer>
-
-class AudioInfo : public QIODevice
-{
- Q_OBJECT
-
-public:
- AudioInfo(const QAudioFormat &format);
-
- void start();
- void stop();
-
- qreal level() const { return m_level; }
-
- qint64 readData(char *data, qint64 maxlen) override;
- qint64 writeData(const char *data, qint64 len) override;
-
-private:
- const QAudioFormat m_format;
- quint32 m_maxAmplitude = 0;
- qreal m_level = 0.0; // 0.0 <= m_level <= 1.0
-
-signals:
- void update();
-};
-
-
-class RenderArea : public QWidget
-{
- Q_OBJECT
-
-public:
- explicit RenderArea(QWidget *parent = nullptr);
-
- void setLevel(qreal value);
-
-protected:
- void paintEvent(QPaintEvent *event) override;
-
-private:
- qreal m_level = 0;
- QPixmap m_pixmap;
-};
-
-
-class InputTest : public QMainWindow
-{
- Q_OBJECT
-
-public:
- InputTest();
-
-private:
- void initializeWindow();
- void initializeAudio(const QAudioDeviceInfo &deviceInfo);
-
-private slots:
- void toggleMode();
- void toggleSuspend();
- void deviceChanged(int index);
- void sliderChanged(int value);
-
-private:
- // Owned by layout
- RenderArea *m_canvas = nullptr;
- QPushButton *m_modeButton = nullptr;
- QPushButton *m_suspendResumeButton = nullptr;
- QComboBox *m_deviceBox = nullptr;
- QSlider *m_volumeSlider = nullptr;
-
- QScopedPointer<AudioInfo> m_audioInfo;
- QScopedPointer<QAudioInput> m_audioInput;
- bool m_pullMode = true;
-};
-
-#endif // AUDIOINPUT_H