qwindowsmediafoundation_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 QWINDOWSMEDIAFOUNDATION_H

#define QWINDOWSMEDIAFOUNDATION_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 <QtCore/private/qsystemlibrary_p.h>

#include <mfapi.h>

#include <mfidl.h>

#include <mfreadwrite.h>

QT_BEGIN_NAMESPACE

class QWindowsMediaFoundation

public:

    static QWindowsMediaFoundation *instance();

    QWindowsMediaFoundation();

    ~QWindowsMediaFoundation();

    bool valid() const;

    decltype(&::MFStartup) mfStartup = nullptr;

    decltype(&::MFShutdown) mfShutdown = nullptr;

    decltype(&::MFCreateMediaType) mfCreateMediaType = nullptr;

    decltype(&::MFCreateMemoryBuffer) mfCreateMemoryBuffer = nullptr;

    decltype(&::MFCreateSample) mfCreateSample = nullptr;

    decltype(&::MFCreateAttributes) mfCreateAttributes = nullptr;

    decltype(&::MFEnumDeviceSources) mfEnumDeviceSources = nullptr;

    decltype(&::MFCreateSourceReaderFromMediaSource) mfCreateSourceReaderFromMediaSource = nullptr;

private:

    QSystemLibrary m_mfplat{ QStringLiteral("Mfplat.dll") };

    QSystemLibrary m_mf{ QStringLiteral("Mf.dll") };

    QSystemLibrary m_mfreadwrite{ QStringLiteral("Mfreadwrite.dll") };

    bool m_valid = false;

};

class Q_MULTIMEDIA_EXPORT QMFRuntimeInit

    Q_DISABLE_COPY_MOVE(QMFRuntimeInit)

public:

    QMFRuntimeInit();

    explicit QMFRuntimeInit(QWindowsMediaFoundation *wmf);

    ~QMFRuntimeInit();

private:

    QWindowsMediaFoundation *const m_wmf;

    const HRESULT m_initResult;

};

QT_END_NAMESPACE

#endif // QWINDOWSMEDIAFOUNDATION_H