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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** 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 QAUDIOSYSTEM_H
#define QAUDIOSYSTEM_H
#include <QtMultimedia/qtmultimediadefs.h>
#include <QtMultimedia/qmultimedia.h>
#include <QtMultimedia/qaudio.h>
#include <QtMultimedia/qaudioformat.h>
#include <QtMultimedia/qaudiodeviceinfo.h>
QT_BEGIN_NAMESPACE
class QIODevice;
// Required for QDoc workaround
class QString;
class Q_MULTIMEDIA_EXPORT QAbstractAudioDeviceInfo : public QObject
{
Q_OBJECT
public:
virtual QAudioFormat preferredFormat() const = 0;
virtual bool isFormatSupported(const QAudioFormat &format) const = 0;
virtual QString deviceName() const = 0;
virtual QStringList supportedCodecs() = 0;
virtual QList<int> supportedSampleRates() = 0;
virtual QList<int> supportedChannelCounts() = 0;
virtual QList<int> supportedSampleSizes() = 0;
virtual QList<QAudioFormat::Endian> supportedByteOrders() = 0;
virtual QList<QAudioFormat::SampleType> supportedSampleTypes() = 0;
};
class Q_MULTIMEDIA_EXPORT QAbstractAudioOutput : public QObject
{
Q_OBJECT
public:
virtual void start(QIODevice *device) = 0;
virtual QIODevice* start() = 0;
virtual void stop() = 0;
virtual void reset() = 0;
virtual void suspend() = 0;
virtual void resume() = 0;
virtual int bytesFree() const = 0;
virtual int periodSize() const = 0;
virtual void setBufferSize(int value) = 0;
virtual int bufferSize() const = 0;
virtual void setNotifyInterval(int milliSeconds) = 0;
virtual int notifyInterval() const = 0;
virtual qint64 processedUSecs() const = 0;
virtual qint64 elapsedUSecs() const = 0;
virtual QAudio::Error error() const = 0;
virtual QAudio::State state() const = 0;
virtual void setFormat(const QAudioFormat& fmt) = 0;
virtual QAudioFormat format() const = 0;
virtual void setVolume(qreal) {}
virtual qreal volume() const { return 1.0; }
virtual QString category() const { return QString(); }
virtual void setCategory(const QString &) { }
Q_SIGNALS:
void errorChanged(QAudio::Error);
void stateChanged(QAudio::State);
void notify();
};
class Q_MULTIMEDIA_EXPORT QAbstractAudioInput : public QObject
{
Q_OBJECT
public:
virtual void start(QIODevice *device) = 0;
virtual QIODevice* start() = 0;
virtual void stop() = 0;
virtual void reset() = 0;
virtual void suspend() = 0;
virtual void resume() = 0;
virtual int bytesReady() const = 0;
virtual int periodSize() const = 0;
virtual void setBufferSize(int value) = 0;
virtual int bufferSize() const = 0;
virtual void setNotifyInterval(int milliSeconds) = 0;
virtual int notifyInterval() const = 0;
virtual qint64 processedUSecs() const = 0;
virtual qint64 elapsedUSecs() const = 0;
virtual QAudio::Error error() const = 0;
virtual QAudio::State state() const = 0;
virtual void setFormat(const QAudioFormat& fmt) = 0;
virtual QAudioFormat format() const = 0;
virtual void setVolume(qreal) = 0;
virtual qreal volume() const = 0;
Q_SIGNALS:
void errorChanged(QAudio::Error);
void stateChanged(QAudio::State);
void notify();
};
QT_END_NAMESPACE
#endif // QAUDIOSYSTEM_H
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