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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: http://www.qt-project.org/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGSTREAMERPLAYERCONTROL_H
#define QGSTREAMERPLAYERCONTROL_H
#include <QtCore/qobject.h>
#include <QtCore/qstack.h>
#include <qmediaplayercontrol.h>
#include <qmediaplayer.h>
#include <limits.h>
class PlayerResourcePolicy;
QT_BEGIN_NAMESPACE
class QMediaPlaylist;
class QMediaPlaylistNavigator;
class QSocketNotifier;
class QGstreamerPlayerSession;
class QGstreamerPlayerService;
class QGstreamerPlayerControl : public QMediaPlayerControl
{
Q_OBJECT
Q_PROPERTY(bool mediaDownloadEnabled READ isMediaDownloadEnabled WRITE setMediaDownloadEnabled)
public:
QGstreamerPlayerControl(QGstreamerPlayerSession *session, QObject *parent = 0);
~QGstreamerPlayerControl();
QMediaPlayer::State state() const;
QMediaPlayer::MediaStatus mediaStatus() const;
qint64 position() const;
qint64 duration() const;
int bufferStatus() const;
int volume() const;
bool isMuted() const;
bool isAudioAvailable() const;
bool isVideoAvailable() const;
void setVideoOutput(QObject *output);
bool isSeekable() const;
QMediaTimeRange availablePlaybackRanges() const;
qreal playbackRate() const;
void setPlaybackRate(qreal rate);
QMediaContent media() const;
const QIODevice *mediaStream() const;
void setMedia(const QMediaContent&, QIODevice *);
bool isMediaDownloadEnabled() const;
void setMediaDownloadEnabled(bool enabled);
public Q_SLOTS:
void setPosition(qint64 pos);
void play();
void pause();
void stop();
void setVolume(int volume);
void setMuted(bool muted);
private Q_SLOTS:
void writeFifo();
void fifoReadyWrite(int socket);
void updateSessionState(QMediaPlayer::State state);
void updateMediaStatus();
void processEOS();
void setBufferProgress(int progress);
void applyPendingSeek(bool isSeekable);
void updatePosition(qint64 pos);
void handleInvalidMedia();
void handleResourcesGranted();
void handleResourcesLost();
private:
bool openFifo();
void closeFifo();
void playOrPause(QMediaPlayer::State state);
void pushState();
void popAndNotifyState();
bool m_ownStream;
QGstreamerPlayerSession *m_session;
QMediaPlayer::State m_state;
QMediaPlayer::MediaStatus m_mediaStatus;
QStack<QMediaPlayer::State> m_stateStack;
QStack<QMediaPlayer::MediaStatus> m_mediaStatusStack;
int m_bufferProgress;
bool m_seekToStartPending;
qint64 m_pendingSeekPosition;
QMediaContent m_currentResource;
QIODevice *m_stream;
QSocketNotifier *m_fifoNotifier;
int m_fifoFd[2];
bool m_fifoCanWrite;
int m_bufferSize;
int m_bufferOffset;
char m_buffer[PIPE_BUF];
PlayerResourcePolicy *m_resources;
};
QT_END_NAMESPACE
#endif
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