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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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#ifndef PHONON_MEDIAGRAPH_H
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#define PHONON_MEDIAGRAPH_H
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#include "backendnode.h"
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#include <QtCore/QMultiMap>
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#include <phonon/mediasource.h>
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//#define GRAPH_DEBUG
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QT_BEGIN_NAMESPACE
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namespace Phonon
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{
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namespace DS9
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{
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class MediaObject;
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//in the end we should probably have no more inheritance here: everything should be in the interface of the class
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//could be nice to then remove all the "*this" in the code of this class
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class MediaGraph : public QObject
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{
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public:
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MediaGraph(MediaObject *mo, short index);
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~MediaGraph();
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bool isSeekable() const;
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qint64 absoluteTotalTime() const;
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qint64 absoluteCurrentTime() const;
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void play();
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void stop();
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void pause();
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void absoluteSeek(qint64);
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QMultiMap<QString, QString> metadata() const;
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static QList<Filter> getAllFilters(Graph graph);
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QList<Filter> getAllFilters() const;
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HRESULT loadSource(const Phonon::MediaSource &);
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bool hasVideo() const { return m_hasVideo; }
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void grabNode(BackendNode *node);
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void grabFilter(Filter filter);
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//connections of the nodes
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bool connectNodes(BackendNode *source, BackendNode *sink);
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bool disconnectNodes(BackendNode *source, BackendNode *sink);
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Phonon::MediaSource mediaSource() const;
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//before loading a source, and after its playback this will be called
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HRESULT cleanup();
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void ensureStopped();
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short index() const;
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Filter realSource() const;
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#ifndef QT_NO_PHONON_MEDIACONTROLLER
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QList<qint64> titles() const;
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void setStopPosition(qint64 time);
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qint64 stopPosition() const;
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#endif //QT_NO_PHONON_MEDIACONTROLLER
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void switchFilters(Filter oldFilter, Filter newFilter);
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OAFilterState syncGetRealState() const;
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bool isLoading() const;
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bool isStopping() const;
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HRESULT renderResult() const;
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Graph graph() const;
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void finishLoading(quint16 workId, HRESULT hr, Graph);
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void finishSeeking(quint16 workId, qint64 time);
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private:
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bool isSourceFilter(const Filter &filter) const;
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bool isDemuxerFilter(const Filter &filter) const;
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bool isDecoderFilter(const Filter &filter);
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static QList<Filter> getFilterChain(const Filter &source, const Filter &sink);
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HRESULT reallyFinishLoading(HRESULT, const Graph &graph);
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//utility functions
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void ensureSourceConnectedTo(bool force = false);
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void ensureSourceDisconnected();
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bool tryConnect(const OutputPin &, const InputPin &);
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bool tryDisconnect(const OutputPin &, const InputPin &);
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HRESULT removeFilter(const Filter& filter);
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//after loading, removes the decoders that are not linked to a sink
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HRESULT removeUselessDecoders();
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//COM objects
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Graph m_graph;
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ComPointer<IMediaControl> m_mediaControl;
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ComPointer<IMediaSeeking> m_mediaSeeking;
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Filter m_fakeSource, m_realSource;
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Filter m_demux;
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QList<OutputPin> m_decoderPins;
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QList<Filter> m_decoders;
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bool m_hasVideo;
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bool m_hasAudio;
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bool m_connectionsDirty;
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bool m_isStopping;
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mutable bool m_isSeekable;
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HRESULT m_result;
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quint16 m_index;
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quint16 m_renderId;
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quint16 m_seekId;
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//while seeking we need to store the current time
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qint64 m_currentTime;
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qint64 m_totalTime;
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MediaObject *m_mediaObject;
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Phonon::MediaSource m_mediaSource;
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QList<BackendNode*> m_sinkConnections; //connections to the source
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Q_DISABLE_COPY(MediaGraph);
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};
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}
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}
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QT_END_NAMESPACE
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#endif // PHONON_MEDIAGRAPH_H
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