src/3rdparty/phonon/qt7/mediaobject.h
author Alex Gilkes <alex.gilkes@nokia.com>
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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_QT7_MEDIAOBJECT_H
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#define Phonon_QT7_MEDIAOBJECT_H
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#include <QtCore/QStringList>
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#include <QtCore/QTime>
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#include <phonon/mediaobjectinterface.h>
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#include <phonon/addoninterface.h>
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#include "medianode.h"
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#if QT_ALLOW_QUICKTIME
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    #include <QuickTime/QuickTime.h>
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#endif
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QT_BEGIN_NAMESPACE
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namespace Phonon
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{
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namespace QT7
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{
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    class QuickTimeVideoPlayer;
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    class QuickTimeAudioPlayer;
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    class QuickTimeMetaData;
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    class AudioGraph;
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    class MediaObjectAudioNode;
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    class MediaObject : public MediaNode,
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        public Phonon::MediaObjectInterface
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#ifndef QT_NO_PHONON_MEDIACONTROLLER
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        , public Phonon::AddonInterface
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#endif
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    {
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        Q_OBJECT
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        Q_INTERFACES(Phonon::MediaObjectInterface Phonon::AddonInterface)
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    public:
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        MediaObject(QObject *parent);
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        ~MediaObject();
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        QStringList availableAudioStreams() const;
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        QStringList availableVideoStreams() const;
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        QStringList availableSubtitleStreams() const;
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        QString currentAudioStream(const QObject *audioPath) const;
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        QString currentVideoStream(const QObject *videoPath) const;
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        QString currentSubtitleStream(const QObject *videoPath) const;
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        void setCurrentAudioStream(const QString &streamName,const QObject *audioPath);
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        void setCurrentVideoStream(const QString &streamName,const QObject *videoPath);
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        void setCurrentSubtitleStream(const QString &streamName,const QObject *videoPath);
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        void play();
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        void pause();
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        void stop();
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        void seek(qint64 milliseconds);
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        qint32 tickInterval() const;
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        void setTickInterval(qint32 interval);
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        bool hasVideo() const;
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        bool isSeekable() const;
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        qint64 currentTime() const;
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        Phonon::State state() const;
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        QString errorString() const;
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        Phonon::ErrorType errorType() const;
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        qint64 totalTime() const;
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        MediaSource source() const;
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        void setSource(const MediaSource &);
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        void setNextSource(const MediaSource &source);
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        qint32 prefinishMark() const;
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        void setPrefinishMark(qint32);
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        qint32 transitionTime() const;
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        void setTransitionTime(qint32);
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        bool hasInterface(Interface interface) const;
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        QVariant interfaceCall(Interface interface, int command, const QList<QVariant> &arguments = QList<QVariant>());
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        QuickTimeVideoPlayer* videoPlayer() const;
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        QuickTimeAudioPlayer* audioPlayer() const;
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        void setVolumeOnMovie(float volume);
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        bool setAudioDeviceOnMovie(int id);
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		int videoOutputCount();
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#if QT_ALLOW_QUICKTIME
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        void displayLinkEvent();
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#endif
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    signals:
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        void stateChanged(Phonon::State,Phonon::State);
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        void tick(qint64);
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        void seekableChanged(bool);
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        void hasVideoChanged(bool);
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        void bufferStatus(int);
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        void finished();
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        void aboutToFinish();
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        void prefinishMarkReached(qint32);
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        void totalTimeChanged(qint64);
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        void metaDataChanged(QMultiMap<QString,QString>);
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        void currentSourceChanged(const MediaSource &newSource);
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        // Add-on interface:
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        void availableSubtitlesChanged();
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        void availableAudioChannelsChanged();
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        void titleChanged(int);
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        void availableTitlesChanged(int);
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        void chapterChanged(int);
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        void availableChaptersChanged(int);
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        void angleChanged(int);
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        void availableAnglesChanged(int);
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    protected:
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        void mediaNodeEvent(const MediaNodeEvent *event);
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        bool event(QEvent *event);
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    private:
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        enum AudioSystem {AS_Unset, AS_Video, AS_Graph, AS_Silent} m_audioSystem;
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        Phonon::State m_state;
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        QuickTimeVideoPlayer *m_videoPlayer;
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        QuickTimeAudioPlayer *m_audioPlayer;
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        QuickTimeVideoPlayer *m_nextVideoPlayer;
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        QuickTimeAudioPlayer *m_nextAudioPlayer;
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        MediaObjectAudioNode *m_mediaObjectAudioNode;
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#if QT_ALLOW_QUICKTIME
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        CVDisplayLinkRef m_displayLink;
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        QMutex m_displayLinkMutex;
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        bool m_pendingDisplayLinkEvent;
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        void startDisplayLink();
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        void stopDisplayLink();
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#endif
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        qint32 m_tickInterval;
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        qint32 m_transitionTime;
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        quint32 m_prefinishMark;
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        quint32 m_currentTime;
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        float m_percentageLoaded;
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        int m_tickTimer;
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        int m_videoTimer;
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        int m_audioTimer;
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        int m_rapidTimer;
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        bool m_waitNextSwap;
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        int m_swapTimeLeft;
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        QTime m_swapTime;
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        bool m_autoplayTitles;
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        void synchAudioVideo();
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        void updateCurrentTime();
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        void swapCurrentWithNext(qint32 transitionTime);
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        bool setState(Phonon::State state);
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        void pause_internal();
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        void play_internal();
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        void setupAudioSystem();
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        void restartAudioVideoTimers();
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        void updateRapidly();
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        void updateCrossFade();
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        void updateAudioBuffers();
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        void updateLipSynch(int allowedOffset);
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        void updateVideoFrames();
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        void updateBufferStatus();
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        void setMute(bool mute);
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		void inspectAudioGraphRecursive(AudioConnection *connection, int &effectCount, int &outputCount);
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		void inspectVideoGraphRecursive(MediaNode *node, int &effectCount, int &outputCount);
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        void inspectGraph();
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        bool isCrossFading();
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        void setCurrentTrack(int track);
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        QString m_errorString;
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        Phonon::ErrorType m_errorType;
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        bool checkForError();
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	    int m_audioEffectCount;
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	    int m_audioOutputCount;
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	    int m_videoEffectCount;
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	    int m_videoOutputCount;
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    };
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}} //namespace Phonon::QT7
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QT_END_NAMESPACE
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#endif // Phonon_QT7_MEDIAOBJECT_H