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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Copyright (C) 2016 Research In Motion
** 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 QDECLARATIVEVIDEOOUTPUT_P_H
#define QDECLARATIVEVIDEOOUTPUT_P_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 <QtCore/qrect.h>
#include <QtCore/qsharedpointer.h>
#include <QtQuick/qquickitem.h>
#include <QtCore/qpointer.h>
#include <QtMultimedia/qcamerainfo.h>
#include <QtMultimedia/qabstractvideofilter.h>
#include <private/qtmultimediaquickdefs_p.h>
QT_BEGIN_NAMESPACE
class QMediaObject;
class QMediaService;
class QDeclarativeVideoBackend;
class QVideoOutputOrientationHandler;
class Q_MULTIMEDIAQUICK_EXPORT QDeclarativeVideoOutput : public QQuickItem
{
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_PROPERTY(int orientation READ orientation WRITE setOrientation NOTIFY orientationChanged)
Q_PROPERTY(bool autoOrientation READ autoOrientation WRITE setAutoOrientation NOTIFY autoOrientationChanged REVISION 2)
Q_PROPERTY(QRectF sourceRect READ sourceRect NOTIFY sourceRectChanged)
Q_PROPERTY(QRectF contentRect READ contentRect NOTIFY contentRectChanged)
Q_PROPERTY(QQmlListProperty<QAbstractVideoFilter> filters READ filters);
Q_PROPERTY(FlushMode flushMode READ flushMode WRITE setFlushMode NOTIFY flushModeChanged REVISION 13)
Q_ENUMS(FlushMode)
Q_ENUMS(FillMode)
public:
enum FlushMode
{
EmptyFrame,
FirstFrame,
LastFrame
};
enum FillMode
{
Stretch = Qt::IgnoreAspectRatio,
PreserveAspectFit = Qt::KeepAspectRatio,
PreserveAspectCrop = Qt::KeepAspectRatioByExpanding
};
QDeclarativeVideoOutput(QQuickItem *parent = 0);
~QDeclarativeVideoOutput();
QObject *source() const { return m_source.data(); }
void setSource(QObject *source);
FillMode fillMode() const;
void setFillMode(FillMode mode);
int orientation() const;
void setOrientation(int);
bool autoOrientation() const;
void setAutoOrientation(bool);
QRectF sourceRect() const;
QRectF contentRect() const;
Q_INVOKABLE QPointF mapPointToItem(const QPointF &point) const;
Q_INVOKABLE QRectF mapRectToItem(const QRectF &rectangle) const;
Q_INVOKABLE QPointF mapNormalizedPointToItem(const QPointF &point) const;
Q_INVOKABLE QRectF mapNormalizedRectToItem(const QRectF &rectangle) const;
Q_INVOKABLE QPointF mapPointToSource(const QPointF &point) const;
Q_INVOKABLE QRectF mapRectToSource(const QRectF &rectangle) const;
Q_INVOKABLE QPointF mapPointToSourceNormalized(const QPointF &point) const;
Q_INVOKABLE QRectF mapRectToSourceNormalized(const QRectF &rectangle) const;
enum SourceType {
NoSource,
MediaObjectSource,
VideoSurfaceSource
};
SourceType sourceType() const;
QQmlListProperty<QAbstractVideoFilter> filters();
FlushMode flushMode() const { return m_flushMode; }
void setFlushMode(FlushMode mode);
Q_SIGNALS:
void sourceChanged();
void fillModeChanged(QDeclarativeVideoOutput::FillMode);
void orientationChanged();
void autoOrientationChanged();
void sourceRectChanged();
void contentRectChanged();
void flushModeChanged();
protected:
QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *) override;
void itemChange(ItemChange change, const ItemChangeData &changeData) override;
void geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry) override;
void releaseResources() override;
private Q_SLOTS:
void _q_updateMediaObject();
void _q_updateCameraInfo();
void _q_updateNativeSize();
void _q_updateGeometry();
void _q_screenOrientationChanged(int);
void _q_invalidateSceneGraph();
private:
bool createBackend(QMediaService *service);
static void filter_append(QQmlListProperty<QAbstractVideoFilter> *property, QAbstractVideoFilter *value);
static int filter_count(QQmlListProperty<QAbstractVideoFilter> *property);
static QAbstractVideoFilter *filter_at(QQmlListProperty<QAbstractVideoFilter> *property, int index);
static void filter_clear(QQmlListProperty<QAbstractVideoFilter> *property);
SourceType m_sourceType;
QPointer<QObject> m_source;
QPointer<QMediaObject> m_mediaObject;
QPointer<QMediaService> m_service;
QCameraInfo m_cameraInfo;
FillMode m_fillMode;
QSize m_nativeSize;
bool m_geometryDirty;
QRectF m_lastRect; // Cache of last rect to avoid recalculating geometry
QRectF m_contentRect; // Destination pixel coordinates, unclipped
int m_orientation;
bool m_autoOrientation;
QVideoOutputOrientationHandler *m_screenOrientationHandler;
QScopedPointer<QDeclarativeVideoBackend> m_backend;
QList<QAbstractVideoFilter *> m_filters;
FlushMode m_flushMode = EmptyFrame;
};
QT_END_NAMESPACE
#endif // QDECLARATIVEVIDEOOUTPUT_H
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