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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_ABSTRACTMEDIAPLAYER_H
#define PHONON_MMF_ABSTRACTMEDIAPLAYER_H
#include <QTimer>
#include <QScopedPointer>
#include <e32std.h>
#include "abstractplayer.h"
class RFile;
QT_BEGIN_NAMESPACE
namespace Phonon
{
namespace MMF
{
class AudioOutput;
/**
* Interface via which MMF client APIs for both audio and video can be
* accessed.
*/
class AbstractMediaPlayer : public AbstractPlayer
{
Q_OBJECT
protected:
AbstractMediaPlayer();
explicit AbstractMediaPlayer(const AbstractPlayer& player);
~AbstractMediaPlayer();
public:
// MediaObjectInterface
virtual void play();
virtual void pause();
virtual void stop();
virtual void seek(qint64 milliseconds);
virtual bool isSeekable() const;
virtual Phonon::ErrorType errorType() const;
virtual QString errorString() const;
virtual Phonon::State state() const;
virtual MediaSource source() const;
virtual void setFileSource(const Phonon::MediaSource&, RFile&);
virtual void setNextSource(const MediaSource &source);
// VolumeObserver
virtual void volumeChanged(qreal volume);
protected:
// AbstractPlayer
virtual void doSetTickInterval(qint32 interval);
virtual void doPlay() = 0;
virtual void doPause() = 0;
virtual void doStop() = 0;
virtual void doSeek(qint64 pos) = 0;
virtual int setDeviceVolume(int mmfVolume) = 0;
virtual int openFile(RFile& file) = 0;
virtual void close() = 0;
protected:
bool tickTimerRunning() const;
void startTickTimer();
void stopTickTimer();
void maxVolumeChanged(int maxVolume);
/**
* 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
*/
static Phonon::State phononState(PrivateState state);
/**
* Changes state and emits stateChanged()
*/
void changeState(PrivateState newState);
/**
* Records error and changes state to ErrorState
*/
void setError(Phonon::ErrorType error);
static qint64 toMilliSeconds(const TTimeIntervalMicroSeconds &);
private:
void doVolumeChanged();
private Q_SLOTS:
/**
* Receives signal from m_tickTimer
*/
void tick();
private:
PrivateState m_state;
Phonon::ErrorType m_error;
/**
* This flag is set to true if play is called when the object is
* in a Loading state. Once loading is complete, playback will
* be started.
*/
bool m_playPending;
QScopedPointer<QTimer> m_tickTimer;
qreal m_volume;
int m_mmfMaxVolume;
MediaSource m_source;
MediaSource m_nextSource;
};
}
}
QT_END_NAMESPACE
#endif
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