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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the QtDataVisualization module.
**
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
**
****************************************************************************/
#include "audiolevelsiodevice.h"
#include "audiolevels.h"
#include <QtDataVisualization/qbardataproxy.h>
#include <QtDataVisualization/q3dvalueaxis.h>
#include <QAudioDeviceInfo>
#include <QAudioInput>
QT_DATAVISUALIZATION_USE_NAMESPACE
AudioLevels::AudioLevels(Q3DBars *graph, QObject *parent)
: QObject(parent),
m_device(0),
m_graph(graph),
m_audioInput(0)
{
// Set up the graph
QBarDataRow *row = new QBarDataRow;
m_graph->activeDataProxy()->addRow(row);
m_graph->setBarThickness(0.04);
m_graph->setBarSpacing(QSizeF(0.0, 0.0));
m_graph->setGridVisible(false);
m_graph->setBackgroundVisible(false);
m_graph->valueAxis()->setRange(0.0, 1.0);
m_graph->setShadowQuality(QDataVis::ShadowQualityNone);
m_graph->setCameraPosition(-20.0, 10.0, 10);
m_graph->setTheme(QDataVis::ThemeIsabelle);
QAudioFormat formatAudio;
formatAudio.setSampleRate(8000);
formatAudio.setChannelCount(1);
formatAudio.setSampleSize(8);
formatAudio.setCodec("audio/pcm");
formatAudio.setByteOrder(QAudioFormat::LittleEndian);
formatAudio.setSampleType(QAudioFormat::UnSignedInt);
QAudioDeviceInfo inputDevices = QAudioDeviceInfo::defaultInputDevice();
m_audioInput = new QAudioInput(inputDevices,formatAudio, this);
m_device = new AudioLevelsIODevice(m_graph->activeDataProxy(), this);
m_device->open(QIODevice::WriteOnly);
m_audioInput->start(m_device);
}
AudioLevels::~AudioLevels()
{
m_audioInput->stop();
m_device->close();
}
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