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/* This file is part of the KDE project.
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Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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This library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2.1 or 3 of the License.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <QStringList>
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#include <QtPlugin>
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#include <apgcli.h> // for RApaLsSession
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#include <apmrec.h> // for CDataTypeArray
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#include <apmstd.h> // for TDataType
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#include "abstractaudioeffect.h"
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#include "audiooutput.h"
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#include "audioplayer.h"
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#include "backend.h"
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#include "effectfactory.h"
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#include "mediaobject.h"
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#include "utils.h"
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#include "videowidget.h"
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QT_BEGIN_NAMESPACE
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using namespace Phonon;
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using namespace Phonon::MMF;
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/*! \class MMF::VolumeObserver
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\internal
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*/
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/*! \class MMF::Backend
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\internal
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*/
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Backend::Backend(QObject *parent) : QObject(parent)
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{
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TRACE_CONTEXT(Backend::Backend, EBackend);
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TRACE_ENTRY_0();
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setProperty("identifier", QLatin1String("phonon_mmf"));
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setProperty("backendName", QLatin1String("MMF"));
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setProperty("backendComment", QLatin1String("Backend using Symbian Multimedia Framework (MMF)"));
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setProperty("backendVersion", QLatin1String("0.1"));
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setProperty("backendWebsite", QLatin1String("http://qt.nokia.com/"));
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TRACE_EXIT_0();
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}
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QObject *Backend::createObject(BackendInterface::Class c, QObject *parent, const QList<QVariant> &args)
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{
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TRACE_CONTEXT(Backend::createObject, EBackend);
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TRACE_ENTRY("class %d", c);
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QObject* result = 0;
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switch (c) {
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case AudioOutputClass:
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result = new AudioOutput(this, parent);
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break;
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case MediaObjectClass:
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result = new MediaObject(parent);
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break;
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case VolumeFaderEffectClass:
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case VisualizationClass:
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case VideoDataOutputClass:
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case EffectClass:
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{
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Q_ASSERT(args.count() == 1);
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Q_ASSERT(args.first().type() == QVariant::Int);
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const AbstractAudioEffect::Type effect = AbstractAudioEffect::Type(args.first().toInt());
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return EffectFactory::createAudioEffect(effect, parent);
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}
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case VideoWidgetClass:
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result = new VideoWidget(qobject_cast<QWidget *>(parent));
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break;
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default:
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TRACE_PANIC(InvalidBackendInterfaceClass);
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}
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TRACE_RETURN("0x%08x", result);
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}
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QList<int> Backend::objectDescriptionIndexes(ObjectDescriptionType type) const
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{
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TRACE_CONTEXT(Backend::objectDescriptionIndexes, EAudioApi);
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TRACE_ENTRY_0();
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QList<int> retval;
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switch(type)
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{
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case EffectType:
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retval.append(EffectFactory::effectIndexes());
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break;
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case AudioOutputDeviceType:
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// We only have one possible output device, but we need at least
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// one.
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retval.append(AudioOutput::AudioOutputDeviceID);
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break;
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default:
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;
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}
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TRACE_EXIT_0();
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return retval;
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}
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QHash<QByteArray, QVariant> Backend::objectDescriptionProperties(ObjectDescriptionType type, int index) const
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{
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TRACE_CONTEXT(Backend::connectNodes, EBackend);
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switch (type) {
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case EffectType:
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return EffectFactory::audioEffectDescriptions(AbstractAudioEffect::Type(index));
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case AudioOutputDeviceType:
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return AudioOutput::audioOutputDescription(index);
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default:
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return QHash<QByteArray, QVariant>();
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}
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}
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bool Backend::startConnectionChange(QSet<QObject *>)
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{
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return true;
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}
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bool Backend::connectNodes(QObject *source, QObject *target)
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{
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TRACE_CONTEXT(Backend::connectNodes, EBackend);
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TRACE_ENTRY("source 0x%08x target 0x%08x", source, target);
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Q_ASSERT(qobject_cast<MediaNode *>(source));
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Q_ASSERT(qobject_cast<MediaNode *>(target));
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MediaNode *const mediaSource = static_cast<MediaNode *>(source);
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MediaNode *const mediaTarget = static_cast<MediaNode *>(target);
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return mediaSource->connectMediaNode(mediaTarget);
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}
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bool Backend::disconnectNodes(QObject *source, QObject *target)
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{
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TRACE_CONTEXT(Backend::disconnectNodes, EBackend);
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TRACE_ENTRY("source 0x%08x target 0x%08x", source, target);
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Q_ASSERT(qobject_cast<MediaNode *>(source));
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Q_ASSERT(qobject_cast<MediaNode *>(target));
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const bool result = static_cast<MediaNode *>(source)->disconnectMediaNode(static_cast<MediaNode *>(target));
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TRACE_RETURN("%d", result);
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}
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bool Backend::endConnectionChange(QSet<QObject *>)
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{
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return true;
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}
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void getAvailableMimeTypesL(QStringList& result)
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{
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RApaLsSession apaSession;
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User::LeaveIfError(apaSession.Connect());
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CleanupClosePushL(apaSession);
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static const TInt DataTypeArrayGranularity = 8;
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CDataTypeArray* array = new(ELeave) CDataTypeArray(DataTypeArrayGranularity);
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CleanupStack::PushL(array);
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apaSession.GetSupportedDataTypesL(*array);
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for (TInt i = 0; i < array->Count(); ++i) {
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const TPtrC mimeType = array->At(i).Des();
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const MediaType mediaType = Utils::mimeTypeToMediaType(mimeType);
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if (MediaTypeAudio == mediaType or MediaTypeVideo == mediaType) {
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result.append(qt_TDesC2QString(mimeType));
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}
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}
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CleanupStack::PopAndDestroy(2); // apaSession, array
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}
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QStringList Backend::availableMimeTypes() const
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{
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QStringList result;
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// There is no way to return an error from this function, so we just
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// have to trap and ignore exceptions...
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TRAP_IGNORE(getAvailableMimeTypesL(result));
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result.sort();
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return result;
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}
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Q_EXPORT_PLUGIN2(phonon_mmf, Phonon::MMF::Backend);
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QT_END_NAMESPACE
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