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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 QWINDOWSMEDIADEVICES_H
#define QWINDOWSMEDIADEVICES_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/qplatformmediadevices_p.h>
#include <private/qcomptr_p.h>
#include <QtCore/private/qfunctions_win_p.h>
#include <private/qwindowsmediafoundation_p.h>
#include <qaudiodevice.h>
struct IAudioClient3;
struct IMMDeviceEnumerator;
QT_BEGIN_NAMESPACE
class QWindowsEngine;
class CMMNotificationClient;
class QWindowsMediaDevices : public QPlatformMediaDevices
{
public:
QWindowsMediaDevices();
virtual ~QWindowsMediaDevices();
QList<QAudioDevice> audioInputs() const override;
QList<QAudioDevice> audioOutputs() const override;
QPlatformAudioSource *createAudioSource(const QAudioDevice &deviceInfo,
QObject *parent) override;
QPlatformAudioSink *createAudioSink(const QAudioDevice &deviceInfo,
QObject *parent) override;
void prepareAudio() override;
private:
QComHelper m_comRuntime;
QMFRuntimeInit m_wmfRuntime{ QWindowsMediaFoundation::instance() };
QList<QAudioDevice> availableDevices(QAudioDevice::Mode mode) const;
ComPtr<IMMDeviceEnumerator> m_deviceEnumerator;
ComPtr<CMMNotificationClient> m_notificationClient;
// The "warm-up" audio client is required to run in the background in order to keep audio engine
// ready for audio output immediately after creating any other subsequent audio client.
ComPtr<IAudioClient3> m_warmUpAudioClient;
std::atomic_bool m_isAudioClientWarmedUp = false;
friend CMMNotificationClient;
};
QT_END_NAMESPACE
#endif
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