bbfccc7135
Qt copyrights are now in The Qt Company, so we could update the source code headers accordingly. In the same go we should also fix the links to point to qt.io. Change-Id: I1c6faa4f59f8eca54f01ef20941fa60161dd7872 Reviewed-by: Yoann Lopes <yoann.lopes@theqtcompany.com>
121 lines
3.8 KiB
C++
121 lines
3.8 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Copyright (C) 2012 Research In Motion
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QDECLARATIVEVIDEOOUTPUT_BACKEND_P_H
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#define QDECLARATIVEVIDEOOUTPUT_BACKEND_P_H
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#include <QtCore/qpointer.h>
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#include <QtCore/qsize.h>
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#include <QtQuick/qquickitem.h>
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#include <QtQuick/qsgnode.h>
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#include <private/qtmultimediaquickdefs_p.h>
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QT_BEGIN_NAMESPACE
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class QAbstractVideoSurface;
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class QDeclarativeVideoOutput;
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class QMediaService;
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class QAbstractVideoFilter;
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class Q_MULTIMEDIAQUICK_EXPORT QDeclarativeVideoBackend
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{
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public:
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explicit QDeclarativeVideoBackend(QDeclarativeVideoOutput *parent)
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: q(parent)
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{}
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virtual ~QDeclarativeVideoBackend()
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{}
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virtual bool init(QMediaService *service) = 0;
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virtual void releaseSource() = 0;
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virtual void releaseControl() = 0;
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virtual void itemChange(QQuickItem::ItemChange change,
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const QQuickItem::ItemChangeData &changeData) = 0;
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virtual QSize nativeSize() const = 0;
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virtual void updateGeometry() = 0;
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virtual QSGNode *updatePaintNode(QSGNode *oldNode, QQuickItem::UpdatePaintNodeData *data) = 0;
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virtual QAbstractVideoSurface *videoSurface() const = 0;
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// The viewport, adjusted for the pixel aspect ratio
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virtual QRectF adjustedViewport() const = 0;
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virtual void appendFilter(QAbstractVideoFilter *filter) { Q_UNUSED(filter); }
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virtual void clearFilters() { }
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virtual void releaseResources() { }
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virtual void invalidateSceneGraph() { }
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protected:
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QDeclarativeVideoOutput *q;
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QPointer<QMediaService> m_service;
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};
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class QDeclarativeVideoBackendFactoryInterface
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{
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public:
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virtual QDeclarativeVideoBackend *create(QDeclarativeVideoOutput *parent) = 0;
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};
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#define QDeclarativeVideoBackendFactoryInterface_iid "org.qt-project.qt.declarativevideobackendfactory/5.2"
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Q_DECLARE_INTERFACE(QDeclarativeVideoBackendFactoryInterface, QDeclarativeVideoBackendFactoryInterface_iid)
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/*
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* Helper - returns true if the given orientation has the same aspect as the default (e.g. 180*n)
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*/
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namespace {
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inline bool qIsDefaultAspect(int o)
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{
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return (o % 180) == 0;
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}
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/*
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* Return the orientation normalized to 0-359
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*/
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inline int qNormalizedOrientation(int o)
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{
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// Negative orientations give negative results
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int o2 = o % 360;
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if (o2 < 0)
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o2 += 360;
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return o2;
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}
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}
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QT_END_NAMESPACE
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#endif
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