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author | Frans Englich <frans.englich@nokia.com> | 2009-08-26 14:36:32 (GMT) |
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committer | Gareth Stockwell <gareth.stockwell@sosco.com> | 2009-09-09 13:35:38 (GMT) |
commit | 7d2d15bbc9d598daf94800b576aff19a68119ed1 (patch) | |
tree | 61f881bda38b0559db6543ed87b55089e64ef25e /src/3rdparty/phonon/mmf/effectfactory.cpp | |
parent | c4d341ecf26d63cc7410756f8f7d1926c277f02f (diff) | |
download | Qt-7d2d15bbc9d598daf94800b576aff19a68119ed1.zip Qt-7d2d15bbc9d598daf94800b576aff19a68119ed1.tar.gz Qt-7d2d15bbc9d598daf94800b576aff19a68119ed1.tar.bz2 |
Work on extending the framework for accomodating effects.
This extends the framework for being able to handle audio effects, largely
affecting how the audio chain is set up, connected and disconnected, and
therefore the Backend has been refactored slightly, and the class MediaNode
introduced, see its documentation.
In addition two effects has been written: BassBoost and AudioEqualizer.
Diffstat (limited to 'src/3rdparty/phonon/mmf/effectfactory.cpp')
-rw-r--r-- | src/3rdparty/phonon/mmf/effectfactory.cpp | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/src/3rdparty/phonon/mmf/effectfactory.cpp b/src/3rdparty/phonon/mmf/effectfactory.cpp new file mode 100644 index 0000000..41f48d2 --- /dev/null +++ b/src/3rdparty/phonon/mmf/effectfactory.cpp @@ -0,0 +1,156 @@ +/* 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 <QObject> + +#include <AudioEqualizerBase.h> +#include <BassBoostBase.h> +#include <DistanceAttenuationBase.h> +#include <DopplerBase.h> +#include <EnvironmentalReverbBase.h> +#include <ListenerOrientationBase.h> +#include <LocationBase.h> +#include <LoudnessBase.h> +#include <RoomLevelBase.h> +#include <SourceOrientationBase.h> +#include <StereoWideningBase.h> + +#include "audioequalizer.h" +#include "bassboost.h" + +#include "effectfactory.h" + +QT_BEGIN_NAMESPACE + +using namespace Phonon; +using namespace Phonon::MMF; + +QHash<QByteArray, QVariant> EffectFactory::constructEffectDescription(const QString &name, + const QString &description) +{ + QHash<QByteArray, QVariant> retval; + + retval.insert("name", name); + retval.insert("description", description); + retval.insert("available", true); + + return retval; +} + + +QHash<QByteArray, QVariant> EffectFactory::audioEffectDescriptions(AbstractAudioEffect::Type type) +{ + switch (type) + { + case AbstractAudioEffect::EffectAudioEqualizer: + return constructEffectDescription(QObject::tr("audio equalizer"), "Audio equalizer."); + case AbstractAudioEffect::EffectBassBoost: + return constructEffectDescription(QObject::tr("Bass boost"), "Bass boost."); + case AbstractAudioEffect::EffectDistanceAttenuation: + return constructEffectDescription(QObject::tr("Distance Attenuation"), "Distance Attenuation."); + case AbstractAudioEffect::EffectEnvironmentalReverb: + return constructEffectDescription(QObject::tr("Environmental Reverb"), "Environmental Reverb."); + case AbstractAudioEffect::EffectListenerOrientation: + return constructEffectDescription(QObject::tr("Environmental Reverb"), "Environmental Reverb."); + case AbstractAudioEffect::EffectLoudness: + return constructEffectDescription(QObject::tr("Loudness"), "Loudness."); + //case EffectRoomLevel: + case AbstractAudioEffect::EffectSourceOrientation: + return constructEffectDescription(QObject::tr("Source Orientation"), "Source Orientation."); + case AbstractAudioEffect::EffectStereoWidening: + return constructEffectDescription(QObject::tr("Stereo Widening"), "Stereo Widening."); + } + + Q_ASSERT_X(false, Q_FUNC_INFO, "Unknown effect type."); + return QHash<QByteArray, QVariant>(); +} + +AbstractAudioEffect *EffectFactory::createAudioEffect(AbstractAudioEffect::Type type, + QObject *parent) +{ + Q_ASSERT(parent); + + switch (type) + { + case AbstractAudioEffect::EffectBassBoost: + return new BassBoost(parent); + case AbstractAudioEffect::EffectAudioEqualizer: + return new AudioEqualizer(parent); + case AbstractAudioEffect::EffectDistanceAttenuation: + case AbstractAudioEffect::EffectEnvironmentalReverb: + case AbstractAudioEffect::EffectListenerOrientation: + case AbstractAudioEffect::EffectLoudness: + //AbstractAudioEffect::EffectRoomLevel, + case AbstractAudioEffect::EffectSourceOrientation: + case AbstractAudioEffect::EffectStereoWidening: + ; + } + + Q_ASSERT_X(false, Q_FUNC_INFO, "Unknown effect."); + return 0; +} + +template<typename TEffect> +bool isEffectSupported() +{ + AudioPlayer audioPlayer; + + QScopedPointer<TEffect> eff; + TRAPD(errorCode, eff.reset(TEffect::NewL(*audioPlayer.player()))); + + return errorCode != KErrNone; +} + +QList<int> EffectFactory::effectIndexes() +{ + QList<int> retval; + + if (isEffectSupported<CAudioEqualizer>()) + retval.append(AbstractAudioEffect::EffectAudioEqualizer); + + if (isEffectSupported<CBassBoost>()) + retval.append(AbstractAudioEffect::EffectBassBoost); + + if (isEffectSupported<CDistanceAttenuation>()) + retval.append(AbstractAudioEffect::EffectDistanceAttenuation); + + if (isEffectSupported<CEnvironmentalReverb>()) + retval.append(AbstractAudioEffect::EffectEnvironmentalReverb); + + if (isEffectSupported<CLoudness>()) + retval.append(AbstractAudioEffect::EffectLoudness); + + if (isEffectSupported<CListenerOrientation>()) + retval.append(AbstractAudioEffect::EffectListenerOrientation); + + if (isEffectSupported<CSourceOrientation>()) + retval.append(AbstractAudioEffect::EffectSourceOrientation); + + /* + if (isEffectSupported<CRoomLevel>()) + retval.append(EffectRoomLevel); + */ + + if (isEffectSupported<CStereoWidening>()) + retval.append(AbstractAudioEffect::EffectStereoWidening); + + return retval; +} + +QT_END_NAMESPACE + |