Doc: Moved example documentation and images

Changed to adhere to the new documentation structure
outlined here:
http://qt-project.org/wiki/Qt_Documentation_Structure

Change-Id: I634e086c7d55abfac3680144cbbe97059fcbea4f
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>

examples/player/doc/src/player.qdoc

@@ -0,0 +1,96 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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: http://www.gnu.org/copyleft/fdl.html.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \example player
+    \title Media Player Example
+    \ingroup video_examples
+
+
+    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
+
+*/
+