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/****************************************************************************
**
** Copyright (C) 2013 Research In Motion
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QNXAUDIOOUTPUT_H
#define QNXAUDIOOUTPUT_H
#include "qaudiosystem.h"
#include <QTime>
#include <QTimer>
#include <QIODevice>
#include <sys/asoundlib.h>
QT_BEGIN_NAMESPACE
class QnxPushIODevice;
class QnxAudioOutput : public QAbstractAudioOutput
{
Q_OBJECT
public:
QnxAudioOutput();
~QnxAudioOutput();
void start(QIODevice *source) Q_DECL_OVERRIDE;
QIODevice *start() Q_DECL_OVERRIDE;
void stop() Q_DECL_OVERRIDE;
void reset() Q_DECL_OVERRIDE;
void suspend() Q_DECL_OVERRIDE;
void resume() Q_DECL_OVERRIDE;
int bytesFree() const Q_DECL_OVERRIDE;
int periodSize() const Q_DECL_OVERRIDE;
void setBufferSize(int) Q_DECL_OVERRIDE {}
int bufferSize() const Q_DECL_OVERRIDE { return 0; }
void setNotifyInterval(int ms) Q_DECL_OVERRIDE;
int notifyInterval() const Q_DECL_OVERRIDE;
qint64 processedUSecs() const Q_DECL_OVERRIDE;
qint64 elapsedUSecs() const Q_DECL_OVERRIDE;
QAudio::Error error() const Q_DECL_OVERRIDE;
QAudio::State state() const Q_DECL_OVERRIDE;
void setFormat(const QAudioFormat &format) Q_DECL_OVERRIDE;
QAudioFormat format() const Q_DECL_OVERRIDE;
void setVolume(qreal volume) Q_DECL_OVERRIDE;
qreal volume() const Q_DECL_OVERRIDE;
private slots:
void pullData();
private:
bool open();
void close();
void setError(QAudio::Error error);
void setState(QAudio::State state);
friend class QnxPushIODevice;
qint64 write(const char *data, qint64 len);
QIODevice *m_source;
bool m_pushSource;
QTimer m_timer;
int m_notifyInterval;
QAudio::Error m_error;
QAudio::State m_state;
QAudioFormat m_format;
qreal m_volume;
int m_periodSize;
snd_pcm_t *m_pcmHandle;
qint64 m_bytesWritten;
QTime m_startTimeStamp;
QTime m_intervalTimeStamp;
qint64 m_intervalOffset;
};
class QnxPushIODevice : public QIODevice
{
Q_OBJECT
public:
explicit QnxPushIODevice(QnxAudioOutput *output);
~QnxPushIODevice();
qint64 readData(char *data, qint64 len);
qint64 writeData(const char *data, qint64 len);
private:
QnxAudioOutput *m_output;
};
QT_END_NAMESPACE
#endif
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