qplatformmediadevices_p.h

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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QPLATFORMMEDIADEVICES_H
#define QPLATFORMMEDIADEVICES_H
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
 
#include <private/qtmultimediaglobal_p.h>
#include <qlist.h>
#include <qobject.h>
#include <mutex>
 
QT_BEGIN_NAMESPACE
 
class QMediaDevices;
class QAudioDevice;
class QCameraDevice;
class QPlatformAudioSource;
class QPlatformAudioSink;
class QAudioFormat;
class QPlatformMediaIntegration;
 
class Q_MULTIMEDIA_EXPORT QPlatformMediaDevices : public QObject
{
    Q_OBJECT
public:
    QPlatformMediaDevices();
    ~QPlatformMediaDevices() override;
 
    static void setDevices(QPlatformMediaDevices *);
    static QPlatformMediaDevices *instance();
 
    virtual QList<QAudioDevice> audioInputs() const;
    virtual QList<QAudioDevice> audioOutputs() const;
 
    virtual QPlatformAudioSource *createAudioSource(const QAudioDevice &, QObject *parent);
    virtual QPlatformAudioSink *createAudioSink(const QAudioDevice &, QObject *parent);
 
    QPlatformAudioSource *audioInputDevice(const QAudioFormat &format,
                                           const QAudioDevice &deviceInfo, QObject *parent);
    QPlatformAudioSink *audioOutputDevice(const QAudioFormat &format,
                                          const QAudioDevice &deviceInfo, QObject *parent);
 
    virtual void prepareAudio();
 
    void initVideoDevicesConnection();
 
Q_SIGNALS:
    void audioInputsChanged();
    void audioOutputsChanged();
    void videoInputsChanged();
 
private:
    std::once_flag m_videoDevicesConnectionFlag;
};
 
QT_END_NAMESPACE
 
 
#endif // QPLATFORMMEDIADEVICES_H