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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 Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** 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.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "DebugMacros.h"
#include "s60audioencodercontrol.h"
#include "s60audiocapturesession.h"
#include "qaudioformat.h"
#include <QtCore/qdebug.h>
S60AudioEncoderControl::S60AudioEncoderControl(QObject *session, QObject *parent)
:QAudioEncoderControl(parent), m_quality(QtMultimediaKit::NormalQuality)
{
DP0("S60AudioEncoderControl::S60AudioEncoderControl +++");
m_session = qobject_cast<S60AudioCaptureSession*>(session);
QAudioFormat fmt = m_session->format();
// medium, 22050Hz mono S16
fmt.setSampleType(QAudioFormat::SignedInt);
if (fmt.codec().compare("PCM", Qt::CaseInsensitive) == 0) {
fmt.setSampleSize(16);
fmt.setFrequency(22050);
}
fmt.setChannels(1);
m_session->setFormat(fmt);
m_settings.setChannelCount(fmt.channels());
m_settings.setCodec(fmt.codec());
m_settings.setSampleRate(fmt.sampleRate());
DP0("S60AudioEncoderControl::S60AudioEncoderControl ---");
}
S60AudioEncoderControl::~S60AudioEncoderControl()
{
DP0("S60AudioEncoderControl::~S60AudioEncoderControl +++");
DP0("S60AudioEncoderControl::~S60AudioEncoderControl ---");
}
QStringList S60AudioEncoderControl::supportedAudioCodecs() const
{
DP0("S60AudioEncoderControl::supportedAudioCodecs");
return m_session->supportedAudioCodecs();
}
QString S60AudioEncoderControl::codecDescription(const QString &codecName) const
{
DP0("S60AudioEncoderControl::codecDescription");
return m_session->codecDescription(codecName);
}
QtMultimediaKit::EncodingQuality S60AudioEncoderControl::quality() const
{
DP0("S60AudioEncoderControl::quality");
return m_quality;
}
void S60AudioEncoderControl::setQuality(QtMultimediaKit::EncodingQuality value, QAudioFormat &fmt)
{
DP0("S60AudioEncoderControl::setQuality +++");
switch (value) {
case QtMultimediaKit::VeryLowQuality:
case QtMultimediaKit::LowQuality:
// low, 8000Hz mono U8
fmt.setSampleType(QAudioFormat::UnSignedInt);
fmt.setSampleSize(8);
fmt.setFrequency(8000);
fmt.setChannels(1);
break;
case QtMultimediaKit::NormalQuality:
// medium, 22050Hz mono S16
fmt.setSampleType(QAudioFormat::SignedInt);
fmt.setSampleSize(16);
fmt.setFrequency(22050);
fmt.setChannels(1);
break;
case QtMultimediaKit::HighQuality:
case QtMultimediaKit::VeryHighQuality:
// high, 44100Hz mono S16
fmt.setSampleType(QAudioFormat::SignedInt);
fmt.setSampleSize(16);
fmt.setFrequency(44100);
fmt.setChannels(2);
break;
default:
break;
}
DP0("S60AudioEncoderControl::setQuality ---");
}
QStringList S60AudioEncoderControl::supportedEncodingOptions(const QString &codec) const
{
DP0("S60AudioEncoderControl::supportedEncodingOptions");
Q_UNUSED(codec)
QStringList list;
if (codec == "PCM")
list << "quality" << "channels" << "samplerate";
return list;
}
QVariant S60AudioEncoderControl::encodingOption(const QString &codec, const QString &name) const
{
DP0("S60AudioEncoderControl::encodingOption");
if (codec == "PCM") {
QAudioFormat fmt = m_session->format();
if(qstrcmp(name.toLocal8Bit().constData(), "quality") == 0) {
return QVariant(quality());
}
else if(qstrcmp(name.toLocal8Bit().constData(), "channels") == 0) {
return QVariant(fmt.channels());
}
else if(qstrcmp(name.toLocal8Bit().constData(), "samplerate") == 0) {
return QVariant(fmt.frequency());
}
}
return QVariant();
}
void S60AudioEncoderControl::setEncodingOption(
const QString &codec, const QString &name, const QVariant &value)
{
DP0("S60AudioEncoderControl::setEncodingOption +++");
if (codec == "PCM") {
QAudioFormat fmt = m_session->format();
if(qstrcmp(name.toLocal8Bit().constData(), "quality") == 0) {
setQuality((QtMultimediaKit::EncodingQuality)value.toInt(), fmt);
} else if(qstrcmp(name.toLocal8Bit().constData(), "channels") == 0) {
fmt.setChannels(value.toInt());
} else if(qstrcmp(name.toLocal8Bit().constData(), "samplerate") == 0) {
fmt.setFrequency(value.toInt());
}
m_session->setFormat(fmt);
}
DP0("S60AudioEncoderControl::setEncodingOption ---");
}
QList<int> S60AudioEncoderControl::supportedSampleRates(const QAudioEncoderSettings &settings, bool *continuous) const
{
DP0("S60AudioEncoderControl::supportedSampleRates");
if (continuous)
*continuous = false;
return m_session->supportedAudioSampleRates(settings);
}
QAudioEncoderSettings S60AudioEncoderControl::audioSettings() const
{
DP0("S60AudioEncoderControl::audioSettings");
return m_settings;
}
void S60AudioEncoderControl::setAudioSettings(const QAudioEncoderSettings &settings)
{
DP0("S60AudioEncoderControl::setAudioSettings +++");
QAudioFormat fmt = m_session->format();
if (settings.encodingMode() == QtMultimediaKit::ConstantQualityEncoding) {
fmt.setCodec(settings.codec());
setQuality(settings.quality(), fmt);
if (settings.sampleRate() > 0) {
fmt.setFrequency(settings.sampleRate());
}
if (settings.channelCount() > 0)
fmt.setChannels(settings.channelCount());
}else {
if (settings.sampleRate() == 8000) {
fmt.setSampleType(QAudioFormat::UnSignedInt);
fmt.setSampleSize(8);
} else {
fmt.setSampleType(QAudioFormat::SignedInt);
fmt.setSampleSize(16);
}
fmt.setCodec(settings.codec());
fmt.setFrequency(settings.sampleRate());
fmt.setChannels(settings.channelCount());
}
m_session->setFormat(fmt);
m_session->setEncoderSettings(settings);
m_settings = settings;
DP0("S60AudioEncoderControl::setAudioSettings ---");
}
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