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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QGSTREAMERVIDEOWIDGET_H
+#define QGSTREAMERVIDEOWIDGET_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/qgsttools_global_p.h>
+#include <qvideowidgetcontrol.h>
+
+#include "qgstreamervideorendererinterface_p.h"
+#include <private/qgstreamerbushelper_p.h>
+#include <private/qgstreamervideooverlay_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class Q_GSTTOOLS_EXPORT QGstreamerVideoWidget;
+
+class Q_GSTTOOLS_EXPORT QGstreamerVideoWidgetControl
+        : public QVideoWidgetControl
+        , public QGstreamerVideoRendererInterface
+        , public QGstreamerSyncMessageFilter
+        , public QGstreamerBusMessageFilter
+{
+    Q_OBJECT
+    Q_INTERFACES(QGstreamerVideoRendererInterface QGstreamerSyncMessageFilter QGstreamerBusMessageFilter)
+public:
+    explicit QGstreamerVideoWidgetControl(QObject *parent = 0, const QByteArray &elementName = QByteArray());
+    virtual ~QGstreamerVideoWidgetControl();
+
+    GstElement *videoSink() override;
+    void setVideoSink(GstElement *) override;
+
+    QWidget *videoWidget() override;
+
+    void stopRenderer() override;
+
+    Qt::AspectRatioMode aspectRatioMode() const override;
+    void setAspectRatioMode(Qt::AspectRatioMode mode) override;
+
+    bool isFullScreen() const override;
+    void setFullScreen(bool fullScreen) override;
+
+    int brightness() const override;
+    void setBrightness(int brightness) override;
+
+    int contrast() const override;
+    void setContrast(int contrast) override;
+
+    int hue() const override;
+    void setHue(int hue) override;
+
+    int saturation() const override;
+    void setSaturation(int saturation) override;
+
+    bool eventFilter(QObject *object, QEvent *event) override;
+
+signals:
+    void sinkChanged();
+    void readyChanged(bool);
+
+private Q_SLOTS:
+    void onOverlayActiveChanged();
+    void onNativeVideoSizeChanged();
+
+private:
+    void createVideoWidget();
+    void updateWidgetAttributes();
+
+    bool processSyncMessage(const QGstreamerMessage &message) override;
+    bool processBusMessage(const QGstreamerMessage &message) override;
+
+    QGstreamerVideoOverlay m_videoOverlay;
+    QGstreamerVideoWidget *m_widget;
+    bool m_stopped;
+    WId m_windowId;
+    bool m_fullScreen;
+};
+
+QT_END_NAMESPACE
+
+#endif // QGSTREAMERVIDEOWIDGET_H