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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:FDL$
** GNU Free Documentation License
** 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.
**
** 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.
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
/*!
\example player
\title Media Player Example
This example creates a simple multimedia player. We can play audio and
or video files using various codecs.
The example uses a QMediaPlayer object passed into a QVideoWidget to
control the video output. To give the application playlist capability
we also use a QPlayList object.
To activate the various functions such as play and stop on the dialog
we connect clicked() signals to slots that emit the play() and stop()
signals and in turn which we connect to the play() and stop() slots in
QMediaPlayer.
\code
connect(controls, SIGNAL(play()), player, SLOT(play()));
connect(controls, SIGNAL(pause()), player, SLOT(pause()));
connect(controls, SIGNAL(stop()), player, SLOT(stop()));
\endcode
We can get the volume (and set our user interface representation)
\code
controls->setVolume(player->volume());
\endcode
and we can make widget 'volume' changes change the volume
\code
connect(controls, SIGNAL(changeVolume(int)), player, SLOT(setVolume(int)));
\endcode
The example also allows us to change various video properties by means
of the QVideoWidget object. We can go to Full Screen mode with a single
button click, and back again. Or if we press the "Color Options" dialog
button we can have access to more subtle influences. The dialog has a
set of sliders so that we can change the brightness, contrast, hue and
saturation of the video being watched. The connect() statements are in
pairs so that changes to either the user interface widget (the relevant
slider) or the QVideoWidget object will update the other object.
\code
connect(brightnessSlider, SIGNAL(sliderMoved(int)), videoWidget,
SLOT(setBrightness(int)));
connect(videoWidget, SIGNAL(brightnessChanged(int)),
brightnessSlider, SLOT(setValue(int)));
connect(contrastSlider, SIGNAL(sliderMoved(int)), videoWidget,
SLOT(setContrast(int)));
connect(videoWidget, SIGNAL(contrastChanged(int)), contrastSlider,
SLOT(setValue(int)));
connect(hueSlider, SIGNAL(sliderMoved(int)), videoWidget,
SLOT(setHue(int)));
connect(videoWidget, SIGNAL(hueChanged(int)), hueSlider,
SLOT(setValue(int)));
connect(saturationSlider, SIGNAL(sliderMoved(int)), videoWidget,
SLOT(setSaturation(int)));
connect(videoWidget, SIGNAL(saturationChanged(int)),
saturationSlider, SLOT(setValue(int)));
\endcode
*/
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