Add some basic docs for the media player and recorder examples

Hook up those examples in the correct places, remove a stale
link to the qmlvideofx example and fix the highlighted examples
list to include four examples, showing playback and capture for
both C++ and QML.

Change-Id: I79177b7f398c418ab3ba723e9ff2cd5ef3de1cf6
Reviewed-by: Nicholas Bennett <nicholas.bennett@qt.io>
(cherry picked from commit d750ae98cd3b13d96eb9865a1eb0ec328278de14)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

2 files changed, 46 insertions, 0 deletions

diff --git a/examples/multimedia/video/recorder/doc/images/qmlrecorder.jpg b/examples/multimedia/video/recorder/doc/images/qmlrecorder.jpg
new file mode 100644
index 000000000..b690d1023
--- /dev/null
+++ b/examples/multimedia/video/recorder/doc/images/qmlrecorder.jpg
diff --git a/examples/multimedia/video/recorder/doc/src/recorder.qdoc b/examples/multimedia/video/recorder/doc/src/recorder.qdoc
new file mode 100644
index 000000000..9ced09e74
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+++ b/examples/multimedia/video/recorder/doc/src/recorder.qdoc
@@ -0,0 +1,46 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 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/recorder
+    \title QML Recorder Example
+    \ingroup multimedia_examples
+    \ingroup video_examples_qml
+    \ingroup camera_examples_qml
+    \brief Recording audio and video using Qt Quick.
+    \meta {tag} {quick}
+
+    \image qmlrecorder.jpg
+
+    \e{QML Recorder} demonstrates a simple application that can record
+    audio and or video files using the camera and microphone.
+
+    \include examples-run.qdocinc
+
+    The example uses the QML Camera and AudioInput objects connected to a MediaCaptureSession.
+    A MediaRecorder object is then used to record the captured audio and video.
+*/