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-/****************************************************************************
-**
-** Copyright (C) 2015 The Qt Company Ltd.
-** Contact: http://www.qt.io/licensing/
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:FDL$
-** 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 Free Documentation License Usage
-** Alternatively, this file may be used under the terms of the GNU Free
-** Documentation License version 1.3 as published by the Free Software
-** Foundation and appearing in the file included in the packaging of
-** this file. Please review the following information to ensure
-** the GNU Free Documentation License version 1.3 requirements
-** will be met: https://www.gnu.org/licenses/fdl-1.3.html.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*!
-\example multimedia/video/qmlvideo
-\title QML Video Example
-\ingroup multimedia_examples
-\brief Transforming video and camera viewfinder content.
-
-\e{QML Video} demonstrates the various transformations (move; resize; rotate;
-change aspect ratio) that can be applied to QML \l VideoOutput and \l Camera
-types.
-
-It also shows how native code can be combined with QML to implement more
-advanced functionality - in this case, C++ code is used to calculate the QML
-frame rate. This value is rendered in QML in a semi-transparent item
-overlaid on the video content.
-
-The following image shows the application executing the video-overlay scene,
-which creates a dummy overlay item (just a semi-transparent \l{Rectangle}),
-which moves across the \l{VideoOutput} item.
-
-\image qmlvideo-overlay.jpg
-
-\include examples-run.qdocinc
-
-\section1 Application Structure
-
-The \c main.qml file creates a UI which includes the following items:
-
-\list
- \li Two \c Button instances, each of which displays a filename, and can be
- used to launch a \c FileBrowser.
- \li An exit \c Button.
- \li A \c SceneSelectionPanel, which is a flickable list displaying the
- available scenes.
- \li At the lower left, an item which displays the QML repainting rate - the
- upper number is the instantaneous frame rate and the lower number is the
- average over the past second.
-\endlist
-
-\image qmlvideo-menu.jpg
-
-Each scene in the flickable list is implemented in its own QML file - for
-example the video-basic scene (which just displays a static \l{VideoOutput}
-in the center of the screen) is implemented in the \c VideoBasic.qml file. As
-you can see from the code, this makes use of a type of inheritance; a
-\c VideoBasic item ...
-
-\quotefromfile multimedia/video/qmlvideo/qml/qmlvideo/VideoBasic.qml
-\skipto import
-\printuntil /^\}/
-
-... is of type \c SceneBasic ...
-
-\quotefromfile multimedia/video/qmlvideo/qml/qmlvideo/SceneBasic.qml
-\skipto import
-\printuntil contentType
-\dots
-\skipto Content
-\printuntil content
-\dots
-\skipto }
-\printuntil /^\}/
-
-... which itself is a \c Scene:
-
-\quotefromfile multimedia/video/qmlvideo/qml/qmlvideo/Scene.qml
-\skipto import
-\printuntil root
-\dots
-\skipto property QtObject content
-\printuntil content
-\dots
-\skipto Button
-\printuntil /^\}/
-
-\c SceneBasic describes the structure and behavior of the scene, but is
-agnostic of the type of content which will be displayed - this is abstracted
-by \c Content.
-
-This pattern allows us to define a particular use case (in this case, simply
-display a static piece of content), and then instantiate that use case for
-both video content (\c {VideoBasic}) and camera content \c ({CameraBasic}).
-This approach is used to implement many of the other scenes - for example,
-\e {"repeatedly slide the content from left to right and back again"} is
-implemented by \c SceneMove, on which \c VideoMove and \c CameraMove are based.
-
-Depending on the value of the contentType property in the top-level scene
-instance, the embedded \c Content item creates either a
-\l[QML]{MediaPlayer} or a \l[QML]{Camera} item.
-
-\section1 Calculating and Displaying QML Painting Rate
-
-\input multimedia/doc/src/examples/video-qml-paint-rate.qdocinc
-
-All that remains is to connect the afterRendering() signal of the QQuickView
-object to a JavaScript function, which will eventually call
-\c frequencyItem.notify():
-
-\quotefromfile multimedia/video/qmlvideo/main.cpp
-\skipto QGuiApplication
-\printuntil ;
-\dots
-\skipto QQuickItem
-\printuntil ;
-\dots
-\skipto QObject::connect
-\printuntil SLOT(qmlFramePainted()));
-
-*/