centralize and fixup example sources install targets

This follows suit with aeb036e in qtbase.

Change-Id: Ie8580d0a1f38ab9858b0e44c9f99bdc552a1752a
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: hjk <qthjk@ovi.com>

examples/multimedia/audiorecorder/doc/src/audiorecorder.qdoc

@@ -0,0 +1,104 @@
+/****************************************************************************
+**
+** 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 audiorecorder
+    \title Audio Recorder Example
+    \ingroup audio_examples
+    \brief The Audio Recorder Example shows how to create a simple audio recorder.
+
+    It demonstrates the discovery of the supported devices and codecs and the use
+    of recording functions in the QAudioRecorder class.
+
+    We display a window for the user to select the appropriate audio input,
+    codec, container, and sample rate. Allow a setting of either quality or
+    bitrate. Finally, the output file can be selected and recording can be
+    started.
+
+    The lists are setup using the \l{QAudioRecorder::audioInputs()}{audioInputs()},
+    \l{QAudioRecorder::supportedAudioCodecs()}{supportedAudioCodecs()},
+    \l{QAudioRecorder::supportedContainers()}{supportedContainers()},
+    \l{QAudioRecorder::supportedContainers()}{supportedContainers()}, and
+    \l{QAudioRecorder::supportedAudioSampleRates()}{supportedAudioSampleRates()}
+    methods. The quality slider is setup from 0 (zero) to
+    \l{QMultimedia::VeryHighQuality} with a default value of
+    \l{QMultimedia::NormalQuality}, while the bitrates are hardcoded
+    into the list.
+
+    \image audiorecorder.png
+
+    To record audio we simply create a QAudioRecorder object.
+
+    \code
+    audioRecorder = new QAudioRecorder(this);
+    \endcode
+
+    And setup the lists as described above. The text on the record and pause
+    buttons are toggled depending on the \l{QMediaRecorder::State}{state} of
+    the \c audioRecorder object. This means that if the state is
+    \l{QMediaRecorder::StoppedState} then the button text will be "Record" and
+    "Pause". In \l{QMediaRecorder::RecordingState} the record button will have
+    the text "Stop", and in \l{QMediaRecorder::PausedState} the pause button
+    will have the text "Resume".
+
+    Pressing the buttons will also result in a toggle based on the state. If
+    recording is stopped, then pressing the record button will setup the
+    \l{QAudioEncoderSettings} based on the values of the selection lists,
+    will set the encoding settings and container on the \c audioRecorder
+    object, and start recording using the
+    \l{QMediaRecorder::record()}{record()} method.
+
+    \code
+        QAudioEncoderSettings settings;
+        settings.setCodec(boxValue(ui->audioCodecBox).toString());
+        settings.setSampleRate(boxValue(ui->sampleRateBox).toInt());
+        settings.setBitRate(boxValue(ui->bitrateBox).toInt());
+        settings.setQuality(QMultimedia::EncodingQuality(ui->qualitySlider->value()));
+        settings.setEncodingMode(ui->constantQualityRadioButton->isChecked() ?
+                                 QMultimedia::ConstantQualityEncoding :
+                                 QMultimedia::ConstantBitRateEncoding);
+
+        QString container = boxValue(ui->containerBox).toString();
+
+        audioRecorder->setEncodingSettings(settings, QVideoEncoderSettings(), container);
+        audioRecorder->record();
+    \endcode
+
+    While recording, the status bar of the application is updated with duration information
+    from the \l{QMediaRecorder::durationChanged()}{durationChanged} signal from the
+    \c audioRecorder object.
+
+    \code
+    ui->statusbar->showMessage(tr("Recorded %1 sec").arg(duration / 1000));
+    \endcode
+
+
+
+
+*/
+
+