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/* This file is part of the KDE project.
Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
This library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2.1 or 3 of the License.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <StereoWideningBase.h>
#include "stereowidening.h"
QT_BEGIN_NAMESPACE
using namespace Phonon;
using namespace Phonon::MMF;
// Define functions which depend on concrete native effect class name
PHONON_MMF_DEFINE_EFFECT_FUNCTIONS(StereoWidening)
/*! \class MMF::StereoWidening
\internal
*/
StereoWidening::StereoWidening(QObject *parent, const QList<EffectParameter>& parameters)
: AbstractAudioEffect::AbstractAudioEffect(parent, parameters)
{
}
void StereoWidening::parameterChanged(const EffectParameter ¶m,
const QVariant &value)
{
Q_ASSERT_X(param.id() == 0, Q_FUNC_INFO, "Invalid parameter ID");
const qreal externalLevel = value.toReal();
const int internalLevel = param.toInternalValue(externalLevel);
TRAPD(err, concreteEffect()->SetStereoWideningLevelL(internalLevel));
// TODO: handle audio effect errors
Q_UNUSED(err);
}
//-----------------------------------------------------------------------------
// Static functions
//-----------------------------------------------------------------------------
const char* StereoWidening::description()
{
return "Stereo widening";
}
bool StereoWidening::getParameters(CMdaAudioOutputStream *stream,
QList<EffectParameter> ¶meters)
{
bool supported = false;
QScopedPointer<CStereoWidening> effect;
TRAPD(err, effect.reset(CStereoWidening::NewL(*stream)));
if (KErrNone == err) {
supported = true;
const qreal defaultValue =
Phonon::MMF::EffectParameter::toExternalValue
(effect->StereoWideningLevel(), 0, 100);
EffectParameter param(
/* parameterId */ 0,
/* name */ tr("Level (%)"),
/* hints */ EffectParameter::IntegerHint,
/* defaultValue */ QVariant(defaultValue),
/* minimumValue */ QVariant(qreal(-1.0)),
/* maximumValue */ QVariant(qreal(+1.0)));
param.setInternalRange(0, 100);
parameters.append(param);
}
return supported;
}
QT_END_NAMESPACE
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