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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef AUDIOINPUT_H
#define AUDIOINPUT_H
#include <QAudioSource>
#include <QMediaDevices>
#include <QComboBox>
#include <QPushButton>
#include <QSlider>
#include <QWidget>
#include <QPixmap>
#include <QByteArray>
#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;
qreal calculateLevel(const char *data, qint64 len) const;
signals:
void levelChanged(qreal level);
private:
const QAudioFormat m_format;
qreal m_level = 0.0; // 0.0 <= m_level <= 1.0
};
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;
};
class InputTest : public QWidget
{
Q_OBJECT
public:
InputTest();
private:
void initializeWindow();
void initializeAudio(const QAudioDevice &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;
QMediaDevices *m_devices = nullptr;
QScopedPointer<AudioInfo> m_audioInfo;
QScopedPointer<QAudioSource> m_audioInput;
bool m_pullMode = true;
};
#endif // AUDIOINPUT_H
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