Initial implementation of QML2 VideoOutput element

Change-Id: I5ed00433fe5e993086ae1698b7344c8d60a5f0f6
Reviewed-on: http://codereview.qt.nokia.com/2727
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>

1 files changed, 115 insertions, 0 deletions

diff --git a/src/imports/multimedia/qdeclarativevideooutput_p.h b/src/imports/multimedia/qdeclarativevideooutput_p.h
new file mode 100644
index 000000000..3fbeb0fb7
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QDECLARATIVEVIDEOOUTPUT_P_H
+#define QDECLARATIVEVIDEOOUTPUT_P_H
+
+#include <qsgitem.h>
+
+#include <QtMultimediaKit/qvideoframe.h>
+#include <QtMultimediaKit/qmediaobject.h>
+
+#include <QtCore/qsharedpointer.h>
+
+#include "qsgvideonode_p.h"
+
+class QSGVideoItemSurface;
+class QVideoRendererControl;
+class QMediaService;
+class QVideoSurfaceFormat;
+
+class QDeclarativeVideoOutput : public QSGItem
+{
+    Q_OBJECT
+    Q_DISABLE_COPY(QDeclarativeVideoOutput)
+    Q_PROPERTY(QObject* source READ source WRITE setSource NOTIFY sourceChanged)
+    Q_PROPERTY(FillMode fillMode READ fillMode WRITE setFillMode NOTIFY fillModeChanged)
+    Q_ENUMS(FillMode)
+
+public:
+    enum FillMode
+    {
+        Stretch            = Qt::IgnoreAspectRatio,
+        PreserveAspectFit  = Qt::KeepAspectRatio,
+        PreserveAspectCrop = Qt::KeepAspectRatioByExpanding
+    };
+
+    QDeclarativeVideoOutput(QSGItem *parent = 0);
+    ~QDeclarativeVideoOutput();
+
+    QObject *source() const { return m_source.data(); }
+    void setSource(QObject *source);
+
+    FillMode fillMode() const;
+    void setFillMode(FillMode mode);
+
+Q_SIGNALS:
+    void sourceChanged();
+    void fillModeChanged(QDeclarativeVideoOutput::FillMode);
+
+protected:
+    QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *);
+
+private Q_SLOTS:
+    void _q_updateMediaObject();
+    void _q_updateNativeSize(const QVideoSurfaceFormat&);
+    void _q_updateGeometry();
+
+private:
+    void present(const QVideoFrame &frame);
+
+    friend class QSGVideoItemSurface;
+
+    QWeakPointer<QObject> m_source;
+    QWeakPointer<QMediaObject> m_mediaObject;
+    QWeakPointer<QMediaService> m_service;
+    QWeakPointer<QVideoRendererControl> m_rendererControl;
+
+    QList<QSGVideoNodeFactory*> m_videoNodeFactories;
+    QSGVideoItemSurface *m_surface;
+    QVideoFrame m_frame;
+    FillMode m_fillMode;
+    QSize m_nativeSize;
+    QRectF m_boundingRect;
+    QRectF m_sourceRect;
+};
+
+#endif // QDECLARATIVEVIDEOOUTPUT_H