Revision control
++ // 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