| /* 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 "backend.h" | |
| #include "backendnode.h" | |
| #include "audiooutput.h" | |
| #include "effect.h" | |
| #include "mediaobject.h" | |
| #include "videowidget.h" | |
| #include "volumeeffect.h" | |
| //windows specific (DirectX Media Object) | |
| #include <dmo.h> | |
| #include <QtCore/QSettings> | |
| #include <QtCore/QSet> | |
| #include <QtCore/QVariant> | |
| #include <QtCore/QtPlugin> | |
| QT_BEGIN_NAMESPACE | |
| Q_EXPORT_PLUGIN2(phonon_ds9, Phonon::DS9::Backend); | |
| namespace Phonon | |
| { | |
| namespace DS9 | |
| { | |
| QMutex *Backend::directShowMutex = 0; | |
| bool Backend::AudioMoniker::operator==(const AudioMoniker &other) | |
| { | |
| return other->IsEqual(*this) == S_OK; | |
| } | |
| Backend::Backend(QObject *parent, const QVariantList &) | |
| : QObject(parent) | |
| { | |
| directShowMutex = &m_directShowMutex; | |
| ::CoInitialize(0); | |
| //registering meta types | |
| qRegisterMetaType<HRESULT>("HRESULT"); | |
| qRegisterMetaType<Graph>("Graph"); | |
| } | |
| Backend::~Backend() | |
| { | |
| m_audioOutputs.clear(); | |
| m_audioEffects.clear(); | |
| ::CoUninitialize(); | |
| directShowMutex = 0; | |
| } | |
| QObject *Backend::createObject(BackendInterface::Class c, QObject *parent, const QList<QVariant> &args) | |
| { | |
| switch (c) | |
| { | |
| case MediaObjectClass: | |
| return new MediaObject(parent); | |
| case AudioOutputClass: | |
| return new AudioOutput(this, parent); | |
| #ifndef QT_NO_PHONON_EFFECT | |
| case EffectClass: | |
| return new Effect(m_audioEffects[ args[0].toInt() ], parent); | |
| #endif //QT_NO_PHONON_EFFECT | |
| #ifndef QT_NO_PHONON_VIDEO | |
| case VideoWidgetClass: | |
| return new VideoWidget(qobject_cast<QWidget *>(parent)); | |
| #endif //QT_NO_PHONON_VIDEO | |
| #ifndef QT_NO_PHONON_VOLUMEFADEREFFECT | |
| case VolumeFaderEffectClass: | |
| return new VolumeEffect(parent); | |
| #endif //QT_NO_PHONON_VOLUMEFADEREFFECT | |
| default: | |
| return 0; | |
| } | |
| } | |
| bool Backend::supportsVideo() const | |
| { | |
| #ifndef QT_NO_PHONON_VIDEO | |
| return true; | |
| #else | |
| return false; | |
| #endif //QT_NO_PHONON_VIDEO | |
| } | |
| QStringList Backend::availableMimeTypes() const | |
| { | |
| QStringList ret; | |
| { | |
| QSettings settings(QLatin1String("HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Multimedia\\mplayer2\\mime types"), QSettings::NativeFormat); | |
| ret += settings.childGroups(); | |
| } | |
| { | |
| QSettings settings(QLatin1String("HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Multimedia\\wmplayer\\mime types"), QSettings::NativeFormat); | |
| ret += settings.childGroups(); | |
| } | |
| ret.removeDuplicates(); | |
| ret.replaceInStrings("\\", "/"); | |
| qSort(ret); | |
| return ret; | |
| } | |
| Filter Backend::getAudioOutputFilter(int index) const | |
| { | |
| Filter ret; | |
| if (index >= 0 && index < m_audioOutputs.count()) { | |
| m_audioOutputs.at(index)->BindToObject(0, 0, IID_IBaseFilter, reinterpret_cast<void**>(&ret)); | |
| } else { | |
| //just return the default audio renderer (not directsound) | |
| ret = Filter(CLSID_AudioRender, IID_IBaseFilter); | |
| } | |
| return ret; | |
| } | |
| QList<int> Backend::objectDescriptionIndexes(Phonon::ObjectDescriptionType type) const | |
| { | |
| QMutexLocker locker(&m_directShowMutex); | |
| QList<int> ret; | |
| switch(type) | |
| { | |
| case Phonon::AudioOutputDeviceType: | |
| { | |
| #ifdef Q_OS_WINCE | |
| ret << 0; // only one audio device with index 0 | |
| #else | |
| ComPointer<ICreateDevEnum> devEnum(CLSID_SystemDeviceEnum, IID_ICreateDevEnum); | |
| if (!devEnum) { | |
| return ret; //it is impossible to enumerate the devices | |
| } | |
| ComPointer<IEnumMoniker> enumMon; | |
| HRESULT hr = devEnum->CreateClassEnumerator(CLSID_AudioRendererCategory, enumMon.pparam(), 0); | |
| if (FAILED(hr)) { | |
| break; | |
| } | |
| AudioMoniker mon; | |
| //let's reorder the devices so that directshound appears first | |
| int nbds = 0; //number of directsound devices | |
| while (S_OK == enumMon->Next(1, mon.pparam(), 0)) { | |
| LPOLESTR str = 0; | |
| mon->GetDisplayName(0,0,&str); | |
| const QString name = QString::fromWCharArray(str); | |
| ComPointer<IMalloc> alloc; | |
| ::CoGetMalloc(1, alloc.pparam()); | |
| alloc->Free(str); | |
| int insert_pos = 0; | |
| if (!m_audioOutputs.contains(mon)) { | |
| insert_pos = m_audioOutputs.count(); | |
| m_audioOutputs.append(mon); | |
| } else { | |
| insert_pos = m_audioOutputs.indexOf(mon); | |
| } | |
| if (name.contains(QLatin1String("DirectSound"))) { | |
| ret.insert(nbds++, insert_pos); | |
| } else { | |
| ret.append(insert_pos); | |
| } | |
| } | |
| #endif | |
| break; | |
| } | |
| #ifndef QT_NO_PHONON_EFFECT | |
| case Phonon::EffectType: | |
| { | |
| m_audioEffects.clear(); | |
| ComPointer<IEnumDMO> enumDMO; | |
| HRESULT hr = ::DMOEnum(DMOCATEGORY_AUDIO_EFFECT, DMO_ENUMF_INCLUDE_KEYED, 0, 0, 0, 0, enumDMO.pparam()); | |
| if (SUCCEEDED(hr)) { | |
| CLSID clsid; | |
| while (S_OK == enumDMO->Next(1, &clsid, 0, 0)) { | |
| ret += m_audioEffects.count(); | |
| m_audioEffects.append(clsid); | |
| } | |
| } | |
| break; | |
| } | |
| break; | |
| #endif //QT_NO_PHONON_EFFECT | |
| default: | |
| break; | |
| } | |
| return ret; | |
| } | |
| QHash<QByteArray, QVariant> Backend::objectDescriptionProperties(Phonon::ObjectDescriptionType type, int index) const | |
| { | |
| QMutexLocker locker(&m_directShowMutex); | |
| QHash<QByteArray, QVariant> ret; | |
| switch (type) | |
| { | |
| case Phonon::AudioOutputDeviceType: | |
| { | |
| #ifdef Q_OS_WINCE | |
| ret["name"] = QLatin1String("default audio device"); | |
| #else | |
| const AudioMoniker &mon = m_audioOutputs[index]; | |
| LPOLESTR str = 0; | |
| HRESULT hr = mon->GetDisplayName(0,0, &str); | |
| if (SUCCEEDED(hr)) { | |
| QString name = QString::fromWCharArray(str); | |
| ComPointer<IMalloc> alloc; | |
| ::CoGetMalloc(1, alloc.pparam()); | |
| alloc->Free(str); | |
| ret["name"] = name.mid(name.indexOf('\\') + 1); | |
| } | |
| #endif | |
| } | |
| break; | |
| #ifndef QT_NO_PHONON_EFFECT | |
| case Phonon::EffectType: | |
| { | |
| WCHAR name[80]; // 80 is clearly stated in the MSDN doc | |
| HRESULT hr = ::DMOGetName(m_audioEffects[index], name); | |
| if (SUCCEEDED(hr)) { | |
| ret["name"] = QString::fromWCharArray(name); | |
| } | |
| } | |
| break; | |
| #endif //QT_NO_PHONON_EFFECT | |
| default: | |
| break; | |
| } | |
| return ret; | |
| } | |
| bool Backend::endConnectionChange(QSet<QObject *> objects) | |
| { | |
| //end of a transaction | |
| for(QSet<QObject *>::const_iterator it = objects.begin(); it != objects.end(); ++it) { | |
| if (BackendNode *node = qobject_cast<BackendNode*>(*it)) { | |
| MediaObject *mo = node->mediaObject(); | |
| if (mo) { | |
| switch(mo->transactionState) | |
| { | |
| case Phonon::ErrorState: | |
| case Phonon::StoppedState: | |
| case Phonon::LoadingState: | |
| //nothing to do | |
| break; | |
| case Phonon::PausedState: | |
| mo->transactionState = Phonon::StoppedState; | |
| mo->pause(); | |
| break; | |
| default: | |
| mo->transactionState = Phonon::StoppedState; | |
| mo->play(); | |
| break; | |
| } | |
| if (mo->state() == Phonon::ErrorState) | |
| return false; | |
| } | |
| } | |
| } | |
| return true; | |
| } | |
| bool Backend::startConnectionChange(QSet<QObject *> objects) | |
| { | |
| //let's save the state of the graph (before we stop it) | |
| for(QSet<QObject *>::const_iterator it = objects.begin(); it != objects.end(); ++it) { | |
| if (BackendNode *node = qobject_cast<BackendNode*>(*it)) { | |
| if (MediaObject *mo = node->mediaObject()) { | |
| if (mo->state() != Phonon::StoppedState) { | |
| mo->transactionState = mo->state(); | |
| mo->ensureStopped(); //we have to stop the graph.. | |
| if (mo->state() == Phonon::ErrorState) | |
| return false; | |
| } | |
| } | |
| } | |
| } | |
| return true; | |
| } | |
| bool Backend::connectNodes(QObject *_source, QObject *_sink) | |
| { | |
| BackendNode *source = qobject_cast<BackendNode*>(_source); | |
| if (!source) { | |
| return false; | |
| } | |
| BackendNode *sink = qobject_cast<BackendNode*>(_sink); | |
| if (!sink) { | |
| return false; | |
| } | |
| //setting the graph if needed | |
| if (source->mediaObject() == 0 && sink->mediaObject() == 0) { | |
| //error: no graph selected | |
| return false; | |
| } else if (source->mediaObject() && source->mediaObject() != sink->mediaObject()) { | |
| //this' graph becomes the common one | |
| source->mediaObject()->grabNode(sink); | |
| } else if (source->mediaObject() == 0) { | |
| //sink's graph becomes the common one | |
| sink->mediaObject()->grabNode(source); | |
| } | |
| return source->mediaObject()->connectNodes(source, sink); | |
| } | |
| bool Backend::disconnectNodes(QObject *_source, QObject *_sink) | |
| { | |
| BackendNode *source = qobject_cast<BackendNode*>(_source); | |
| if (!source) { | |
| return false; | |
| } | |
| BackendNode *sink = qobject_cast<BackendNode*>(_sink); | |
| if (!sink) { | |
| return false; | |
| } | |
| return source->mediaObject() == 0 || | |
| source->mediaObject()->disconnectNodes(source, sink); | |
| } | |
| } | |
| } | |
| QT_END_NAMESPACE | |
| #include "moc_backend.cpp" |