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Diffstat (limited to 'src/qtmultimediaquicktools/qdeclarativevideooutput_p.h')
| -rw-r--r-- | src/qtmultimediaquicktools/qdeclarativevideooutput_p.h | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/src/qtmultimediaquicktools/qdeclarativevideooutput_p.h b/src/qtmultimediaquicktools/qdeclarativevideooutput_p.h new file mode 100644 index 000000000..8ea0dc338 --- /dev/null +++ b/src/qtmultimediaquicktools/qdeclarativevideooutput_p.h @@ -0,0 +1,197 @@ +/**************************************************************************** +** +** 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 |