Initial copy of QtMultimediaKit.

Comes from original repo, with SHA1:
2c82d5611655e5967f5c5095af50c0991c4378b2

src/plugins/directshow/player/directshowvideorenderercontrol.cpp

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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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "directshowvideorenderercontrol.h"
+
+#include "videosurfacefilter.h"
+
+DirectShowVideoRendererControl::DirectShowVideoRendererControl(DirectShowEventLoop *loop, QObject *parent)
+    : QVideoRendererControl(parent)
+    , m_loop(loop)
+    , m_surface(0)
+    , m_filter(0)
+{
+}
+
+DirectShowVideoRendererControl::~DirectShowVideoRendererControl()
+{
+    delete m_filter;
+}
+
+QAbstractVideoSurface *DirectShowVideoRendererControl::surface() const
+{
+    return m_surface;
+}
+
+void DirectShowVideoRendererControl::setSurface(QAbstractVideoSurface *surface)
+{
+    if (surface != m_surface) {
+        m_surface = surface;
+
+        VideoSurfaceFilter *existingFilter = m_filter;
+
+        if (surface) {
+            m_filter = new VideoSurfaceFilter(surface, m_loop);
+        } else {
+            m_filter = 0;
+        }
+
+        emit filterChanged();
+
+        delete existingFilter;
+    }
+}
+
+IBaseFilter *DirectShowVideoRendererControl::filter()
+{
+    return m_filter;
+}