sourceresolver_p.h

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// Copyright (C) 2016 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 SOURCERESOLVER_H

#define SOURCERESOLVER_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 <mfstream_p.h>

#include <QtCore/qurl.h>

#include <QtCore/private/qcomobject_p.h>

#include <QtCore/private/qcomptr_p.h>

QT_BEGIN_NAMESPACE

class SourceResolver : public QObject,

                       public QComObjectWithDeleteLater<SourceResolver, IMFAsyncCallback>

    Q_OBJECT

public:

    SourceResolver();

    ~SourceResolver();

    HRESULT STDMETHODCALLTYPE Invoke(IMFAsyncResult *pAsyncResult) override;

    HRESULT STDMETHODCALLTYPE GetParameters(DWORD*, DWORD*) override;

    void load(const QUrl &url, QIODevice* stream);

    void cancel();

    void shutdown();

    ComPtr<IMFMediaSource> mediaSource() const;

Q_SIGNALS:

    void error(long hr);

    void mediaSourceReady();

private:

    class State : public QComObject<IUnknown>

    public:

        State(ComPtr<IMFSourceResolver> sourceResolver, bool fromStream);

        virtual ~State();

        ComPtr<IMFSourceResolver> sourceResolver() const;

        bool fromStream() const;

    private:

        ComPtr<IMFSourceResolver> m_sourceResolver;

        bool m_fromStream;

};

    ComPtr<IUnknown> m_cancelCookie;

    ComPtr<IMFSourceResolver> m_sourceResolver;

    ComPtr<IMFMediaSource> m_mediaSource;

    ComPtr<MFStream> m_stream;

    mutable QMutex m_mutex;

};

QT_END_NAMESPACE

#endif