Initial copy of QtMultimediaKit.

Comes from original repo, with SHA1:
2c82d5611655e5967f5c5095af50c0991c4378b2

src/plugins/directshow/player/directshowmetadatacontrol.h

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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef DIRECTSHOWMETADATACONTROL_H
+#define DIRECTSHOWMETADATACONTROL_H
+
+#include <qmetadatareadercontrol.h>
+
+#include "directshowglobal.h"
+
+#include <qnetwork.h>
+
+#ifndef QT_NO_WMSDK
+#include <wmsdk.h>
+#endif
+
+#include <QtCore/qcoreevent.h>
+
+class DirectShowPlayerService;
+
+QT_USE_NAMESPACE
+
+class DirectShowMetaDataControl : public QMetaDataReaderControl
+{
+    Q_OBJECT
+public:
+    DirectShowMetaDataControl(QObject *parent = 0);
+    ~DirectShowMetaDataControl();
+
+    bool isMetaDataAvailable() const;
+
+    QVariant metaData(QtMultimediaKit::MetaData key) const;
+    QList<QtMultimediaKit::MetaData> availableMetaData() const;
+
+    QVariant extendedMetaData(const QString &key) const;
+    QStringList availableExtendedMetaData() const;
+
+    void updateGraph(IFilterGraph2 *graph, IBaseFilter *source);
+
+protected:
+    void customEvent(QEvent *event);
+
+private:
+    enum Event
+    {
+        MetaDataChanged = QEvent::User
+    };
+
+    IAMMediaContent *m_content;
+#ifndef QT_NO_WMSDK
+    IWMHeaderInfo *m_headerInfo;
+#endif
+};
+
+#endif