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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 <EnvironmentalReverbBase.h>
#include "environmentalreverb.h"
QT_BEGIN_NAMESPACE
using namespace Phonon;
using namespace Phonon::MMF;
/*! \class MMF::EnvironmentalReverb
\internal
*/
// Define functions which depend on concrete native effect class name
PHONON_MMF_DEFINE_EFFECT_FUNCTIONS(EnvironmentalReverb)
enum Parameters
{
DecayHFRatio = AbstractAudioEffect::ParameterBase,
DecayTime,
Density,
Diffusion,
ReflectionsDelay,
ReflectionsLevel,
ReverbDelay,
ReverbLevel,
RoomHFLevel,
RoomLevel
};
EnvironmentalReverb::EnvironmentalReverb(QObject *parent, const QList<EffectParameter>& parameters)
: AbstractAudioEffect::AbstractAudioEffect(parent, parameters)
{
}
int EnvironmentalReverb::effectParameterChanged(const EffectParameter ¶m,
const QVariant &value)
{
const qreal externalLevel = value.toReal();
const int internalLevel = param.toInternalValue(externalLevel);
TInt err = 0;
switch(param.id()) {
case DecayHFRatio:
TRAP(err, concreteEffect()->SetDecayHFRatioL(internalLevel));
break;
case DecayTime:
TRAP(err, concreteEffect()->SetDecayTimeL(internalLevel));
break;
case Density:
TRAP(err, concreteEffect()->SetDensityL(internalLevel));
break;
case Diffusion:
TRAP(err, concreteEffect()->SetDiffusionL(internalLevel));
break;
case ReflectionsDelay:
TRAP(err, concreteEffect()->SetReflectionsDelayL(internalLevel));
break;
case ReflectionsLevel:
TRAP(err, concreteEffect()->SetReflectionsLevelL(internalLevel));
break;
case ReverbDelay:
TRAP(err, concreteEffect()->SetReverbDelayL(internalLevel));
break;
case ReverbLevel:
TRAP(err, concreteEffect()->SetReverbLevelL(internalLevel));
break;
case RoomHFLevel:
TRAP(err, concreteEffect()->SetRoomHFLevelL(internalLevel));
break;
case RoomLevel:
TRAP(err, concreteEffect()->SetRoomLevelL(internalLevel));
break;
default:
Q_ASSERT_X(false, Q_FUNC_INFO, "Unknown parameter");
}
return err;
}
//-----------------------------------------------------------------------------
// Static functions
//-----------------------------------------------------------------------------
const char* EnvironmentalReverb::description()
{
return "Reverb";
}
// Internal helper function
Phonon::MMF::EffectParameter createParameter(int id, const QString &name,
int defaultValue, int minValue, int maxValue,
Phonon::EffectParameter::Hint hint = Phonon::EffectParameter::IntegerHint)
{
const qreal externalDefaultValue =
Phonon::MMF::EffectParameter::toExternalValue
(defaultValue, minValue, maxValue);
Phonon::MMF::EffectParameter param(id, name, hint,
/* defaultValue */ QVariant(externalDefaultValue),
/* minimumValue */ QVariant(qreal(-1.0)),
/* maximumValue */ QVariant(qreal(+1.0)));
param.setInternalRange(minValue, maxValue);
return param;
}
bool EnvironmentalReverb::getParameters(CMdaAudioOutputStream *stream,
QList<EffectParameter>& parameters)
{
bool supported = false;
QScopedPointer<CEnvironmentalReverb> effect;
TRAPD(err, effect.reset(CEnvironmentalReverb::NewL(*stream)));
if (KErrNone == err) {
supported = true;
TInt32 min, max;
TUint32 umin, umax;
// DecayHFRatio
// Ratio of high-frequency decay time to the value specified by
// DecayTime.
effect->DecayHFRatioRange(umin, umax);
parameters.append(createParameter(
DecayHFRatio, tr("Decay HF ratio (%)"), effect->DecayHFRatio(),
umin, umax));
// DecayTime
// Time over which reverberation is diminished.
effect->DecayTimeRange(umin, umax);
parameters.append(createParameter(
DecayTime, tr("Decay time (ms)"), effect->DecayTime(),
umin, umax));
// Density
// Delay between first and subsequent reflections.
// Note that the S60 platform documentation does not make clear
// the distinction between this value and the Diffusion value.
parameters.append(createParameter(
Density, tr("Density (%)"), effect->Density(), 0, 100));
// Diffusion
// Delay between first and subsequent reflections.
// Note that the S60 platform documentation does not make clear
// the distinction between this value and the Density value.
parameters.append(createParameter(
Diffusion, tr("Diffusion (%)"), effect->Diffusion(), 0, 100));
// ReflectionsDelay
// Amount of delay between the arrival the direct path from the
// source and the arrival of the first reflection.
parameters.append(createParameter(
ReflectionsDelay, tr("Reflections delay (ms)"),
effect->ReflectionsDelay(), 0, effect->ReflectionsDelayMax()));
// ReflectionsLevel
// Amplitude of reflections. This value is corrected by the RoomLevel
// to give the final reflection amplitude.
effect->ReflectionLevelRange(min, max);
parameters.append(createParameter(
ReflectionsLevel, tr("Reflections level (mB)"),
effect->ReflectionsLevel(),
min, max, EffectParameter::LogarithmicHint));
// ReverbDelay
// Amount of time between arrival of the first reflection and start of
// the late reverberation.
parameters.append(createParameter(
ReverbDelay, tr("Reverb delay (ms)"), effect->ReverbDelay(),
0, effect->ReverbDelayMax()));
// ReverbLevel
// Amplitude of reverberations. This value is corrected by the
// RoomLevel to give the final reverberation amplitude.
effect->ReverbLevelRange(min, max);
parameters.append(createParameter(
ReverbLevel, tr("Reverb level (mB)"), effect->ReverbLevel(),
min, max, EffectParameter::LogarithmicHint));
// RoomHFLevel
// Amplitude of low-pass filter used to attenuate the high frequency
// component of reflected sound.
effect->RoomHFLevelRange(min, max);
parameters.append(createParameter(
RoomHFLevel, tr("Room HF level"), effect->RoomHFLevel(),
min, max));
// RoomLevel
// Master volume control for all reflected sound.
effect->RoomLevelRange(min, max);
parameters.append(createParameter(
RoomLevel, tr("Room level (mB)"), effect->RoomLevel(),
min, max, EffectParameter::LogarithmicHint));
}
return supported;
}
QT_END_NAMESPACE
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