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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 <QStringList>
#include <QtPlugin>
#include <apgcli.h> // for RApaLsSession
#include <apmrec.h> // for CDataTypeArray
#include <apmstd.h> // for TDataType
#include "abstractaudioeffect.h"
#include "audiooutput.h"
#include "audioplayer.h"
#include "backend.h"
#include "effectfactory.h"
#include "mediaobject.h"
#include "utils.h"
#include "videowidget.h"
QT_BEGIN_NAMESPACE
using namespace Phonon;
using namespace Phonon::MMF;
/*! \class MMF::Backend
\internal
*/
Backend::Backend(QObject *parent)
: QObject(parent)
#ifndef PHONON_MMF_VIDEO_SURFACES
, m_ancestorMoveMonitor(new AncestorMoveMonitor(this))
#endif
, m_effectFactory(new EffectFactory(this))
{
TRACE_CONTEXT(Backend::Backend, EBackend);
TRACE_ENTRY_0();
setProperty("identifier", QLatin1String("phonon_mmf"));
setProperty("backendName", QLatin1String("MMF"));
setProperty("backendComment", QLatin1String("Backend using Symbian Multimedia Framework (MMF)"));
setProperty("backendVersion", QLatin1String("0.1"));
setProperty("backendWebsite", QLatin1String("http://qt.nokia.com/"));
TRACE_EXIT_0();
}
QObject *Backend::createObject(BackendInterface::Class c, QObject *parent, const QList<QVariant> &args)
{
TRACE_CONTEXT(Backend::createObject, EBackend);
TRACE_ENTRY("class %d", c);
QObject* result = 0;
switch (c) {
case AudioOutputClass:
result = new AudioOutput(this, parent);
break;
case MediaObjectClass:
result = new MediaObject(parent);
break;
case VolumeFaderEffectClass:
case VisualizationClass:
case VideoDataOutputClass:
case EffectClass:
{
Q_ASSERT(args.count() == 1);
Q_ASSERT(args.first().type() == QVariant::Int);
const EffectFactory::Type type =
static_cast<EffectFactory::Type>(args.first().toInt());
return m_effectFactory->createAudioEffect(type, parent);
}
case VideoWidgetClass:
{
VideoWidget *widget = new VideoWidget(qobject_cast<QWidget *>(parent));
#ifndef PHONON_MMF_VIDEO_SURFACES
widget->setAncestorMoveMonitor(m_ancestorMoveMonitor.data());
#endif
result = widget;
}
break;
default:
TRACE_PANIC(InvalidBackendInterfaceClass);
}
TRACE_RETURN("0x%08x", result);
}
QList<int> Backend::objectDescriptionIndexes(ObjectDescriptionType type) const
{
TRACE_CONTEXT(Backend::objectDescriptionIndexes, EAudioApi);
TRACE_ENTRY_0();
QList<int> retval;
switch(type)
{
case EffectType:
retval.append(m_effectFactory->effectIndexes());
break;
case AudioOutputDeviceType:
// We only have one possible output device, but we need at least
// one.
retval.append(AudioOutput::AudioOutputDeviceID);
break;
default:
;
}
TRACE_EXIT_0();
return retval;
}
QHash<QByteArray, QVariant> Backend::objectDescriptionProperties(ObjectDescriptionType type, int index) const
{
TRACE_CONTEXT(Backend::connectNodes, EBackend);
switch (type) {
case EffectType:
return m_effectFactory->audioEffectDescriptions(EffectFactory::Type(index));
case AudioOutputDeviceType:
return AudioOutput::audioOutputDescription(index);
default:
return QHash<QByteArray, QVariant>();
}
}
bool Backend::startConnectionChange(QSet<QObject *>)
{
return true;
}
bool Backend::connectNodes(QObject *sourceObject, QObject *targetObject)
{
TRACE_CONTEXT(Backend::connectNodes, EBackend);
TRACE_ENTRY("source 0x%08x target 0x%08x", sourceObject, targetObject);
MediaNode *const source = qobject_cast<MediaNode *>(sourceObject);
MediaNode *const target = qobject_cast<MediaNode *>(targetObject);
Q_ASSERT_X(source, Q_FUNC_INFO, "source is not a MediaNode");
Q_ASSERT_X(target, Q_FUNC_INFO, "target is not a MediaNode");
return source->connectOutput(target);
}
bool Backend::disconnectNodes(QObject *sourceObject, QObject *targetObject)
{
TRACE_CONTEXT(Backend::disconnectNodes, EBackend);
TRACE_ENTRY("source 0x%08x target 0x%08x", sourceObject, targetObject);
MediaNode *const source = qobject_cast<MediaNode *>(sourceObject);
MediaNode *const target = qobject_cast<MediaNode *>(targetObject);
Q_ASSERT_X(source, Q_FUNC_INFO, "source is not a MediaNode");
Q_ASSERT_X(target, Q_FUNC_INFO, "target is not a MediaNode");
return source->disconnectOutput(target);
}
bool Backend::endConnectionChange(QSet<QObject *>)
{
return true;
}
void getAvailableMimeTypesL(QStringList& result)
{
RApaLsSession apaSession;
User::LeaveIfError(apaSession.Connect());
CleanupClosePushL(apaSession);
static const TInt DataTypeArrayGranularity = 8;
CDataTypeArray* array = new(ELeave) CDataTypeArray(DataTypeArrayGranularity);
CleanupStack::PushL(array);
apaSession.GetSupportedDataTypesL(*array);
for (TInt i = 0; i < array->Count(); ++i) {
const TPtrC mimeType = array->At(i).Des();
const MediaType mediaType = Utils::mimeTypeToMediaType(mimeType);
if (MediaTypeAudio == mediaType or MediaTypeVideo == mediaType) {
result.append(qt_TDesC2QString(mimeType));
}
}
CleanupStack::PopAndDestroy(2); // apaSession, array
}
QStringList Backend::availableMimeTypes() const
{
QStringList result;
// There is no way to return an error from this function, so we just
// have to trap and ignore exceptions...
TRAP_IGNORE(getAvailableMimeTypesL(result));
result.sort();
return result;
}
QT_END_NAMESPACE
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