/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** 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 QAUDIODECODERCONTROL_H
#define QAUDIODECODERCONTROL_H

#include "qmediacontrol.h"
#include <private/qaudiodecoder_p.h>

#include <QtCore/qpair.h>

#include "qaudiobuffer.h"

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Multimedia)

class QIODevice;
class Q_MULTIMEDIA_EXPORT QAudioDecoderControl : public QMediaControl
{
    Q_OBJECT

public:
    ~QAudioDecoderControl();

    virtual QAudioDecoder::State state() const = 0;

    virtual QString sourceFilename() const = 0;
    virtual void setSourceFilename(const QString &fileName) = 0;

    virtual QIODevice* sourceDevice() const = 0;
    virtual void setSourceDevice(QIODevice *device) = 0;

    virtual void start() = 0;
    virtual void stop() = 0;

    virtual QAudioFormat audioFormat() const = 0;
    virtual void setAudioFormat(const QAudioFormat &format) = 0;

    virtual QAudioBuffer read(bool *ok) = 0;
    virtual bool bufferAvailable() const = 0;

Q_SIGNALS:
    void stateChanged(QAudioDecoder::State newState);
    void formatChanged(const QAudioFormat &format);
    void sourceChanged();

    void error(int error, const QString &errorString);

    void bufferReady();
    void bufferAvailableChanged(bool available);

protected:
    QAudioDecoderControl(QObject* parent = 0);
};

#define QAudioDecoderControl_iid "com.nokia.Qt.QAudioDecoderControl/1.0"
Q_MEDIA_DECLARE_CONTROL(QAudioDecoderControl, QAudioDecoderControl_iid)

QT_END_NAMESPACE

QT_END_HEADER

#endif  // QAUDIODECODERCONTROL_H