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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/>.
*/
#ifndef PHONON_MMF_ABSTRACTPLAYER_H
#define PHONON_MMF_ABSTRACTPLAYER_H
#include <phonon/phononnamespace.h>
#include <phonon/mediasource.h>
#include <QObject>
#include "abstractvideooutput.h"
class RFile;
QT_BEGIN_NAMESPACE
namespace Phonon
{
namespace MMF
{
/**
* @short Interface which abstracts from MediaObject the current
* media type
*
* This may be:
* - Nothing, in which case this interface is implemented by
* DummyPlayer
* - Audio, in which case the implementation is AudioPlayer
* - Video, in which case the implementation is VideoPlayer
*/
class AbstractPlayer : public QObject
{
// Required although this class has no signals or slots
// Without this, qobject_cast will fail
Q_OBJECT
public:
AbstractPlayer(const AbstractPlayer *player);
virtual void open(const Phonon::MediaSource&, RFile&) = 0;
virtual void close() = 0;
// MediaObjectInterface (implemented)
qint32 tickInterval() const;
void setTickInterval(qint32);
void setTransitionTime(qint32);
qint32 transitionTime() const;
void setPrefinishMark(qint32);
qint32 prefinishMark() const;
// MediaObjectInterface (abstract)
virtual void play() = 0;
virtual void pause() = 0;
virtual void stop() = 0;
virtual void seek(qint64 milliseconds) = 0;
virtual bool hasVideo() const = 0;
virtual bool isSeekable() const = 0;
virtual qint64 currentTime() const = 0;
virtual Phonon::ErrorType errorType() const;
virtual QString errorString() const;
virtual qint64 totalTime() const = 0;
virtual void volumeChanged(qreal volume);
void setVideoOutput(AbstractVideoOutput *videoOutput);
/**
* Records error message and changes state to ErrorState
*/
void setError(const QString &errorMessage);
/**
* Records error message and changes state to ErrorState
*
* Appends a human-readable version of symbianErrorCode to the error message,
* e.g.
* @code
* setError("Opening file failed", KErrPermissionDenied)
* @endcode
* results in the following error message:
* "Opening file failed: permission denied"
*/
void setError(const QString &errorMessage, int symbianErrorCode);
Phonon::State state() const;
Q_SIGNALS:
void totalTimeChanged(qint64 length);
void finished();
void tick(qint64 time);
void bufferStatus(int percentFilled);
void stateChanged(Phonon::State newState,
Phonon::State oldState);
void metaDataChanged(const QMultiMap<QString, QString>& metaData);
void aboutToFinish();
void prefinishMarkReached(qint32 remaining);
protected:
/**
* Defined private state enumeration in order to add GroundState
*/
enum PrivateState {
LoadingState = Phonon::LoadingState,
StoppedState = Phonon::StoppedState,
PlayingState = Phonon::PlayingState,
BufferingState = Phonon::BufferingState,
PausedState = Phonon::PausedState,
ErrorState = Phonon::ErrorState,
GroundState
};
/**
* Converts PrivateState into the corresponding Phonon::State
*/
Phonon::State phononState() const;
/**
* Converts PrivateState into the corresponding Phonon::State
*/
virtual Phonon::State phononState(PrivateState state) const;
virtual void videoOutputChanged();
PrivateState privateState() const;
/**
* Changes state and emits stateChanged()
*/
virtual void changeState(PrivateState newState);
/**
* Modifies m_state directly. Typically you want to call changeState(),
* which performs the business logic.
*/
void setState(PrivateState newState);
private:
virtual void doSetTickInterval(qint32 interval) = 0;
protected:
// Not owned
AbstractVideoOutput* m_videoOutput;
qreal m_volume;
private:
PrivateState m_state;
Phonon::ErrorType m_error;
QString m_errorString;
qint32 m_tickInterval;
qint32 m_transitionTime;
qint32 m_prefinishMark;
};
}
}
QT_END_NAMESPACE
#endif
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