5f7b64346d
QAudioOutput and QSoundEffect now have a category property so that system volume mixing or processing can be applied. Initially just pulseaudio supports this but Windows Vista etc should also work. Change-Id: I6855b08367e5a055ac7dfcffd644c98bfd7c5a4e Reviewed-by: Ling Hu <ling.hu@nokia.com>
146 lines
4.7 KiB
C++
146 lines
4.7 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QAUDIOSYSTEM_H
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#define QAUDIOSYSTEM_H
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#include <qtmultimediadefs.h>
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#include <qtmedianamespace.h>
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#include "qaudio.h"
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#include "qaudioformat.h"
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#include "qaudiodeviceinfo.h"
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE(Multimedia)
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class Q_MULTIMEDIA_EXPORT QAbstractAudioDeviceInfo : public QObject
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{
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Q_OBJECT
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public:
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virtual QAudioFormat preferredFormat() const = 0;
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virtual bool isFormatSupported(const QAudioFormat &format) const = 0;
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virtual QString deviceName() const = 0;
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virtual QStringList supportedCodecs() = 0;
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virtual QList<int> supportedSampleRates() = 0;
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virtual QList<int> supportedChannelCounts() = 0;
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virtual QList<int> supportedSampleSizes() = 0;
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virtual QList<QAudioFormat::Endian> supportedByteOrders() = 0;
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virtual QList<QAudioFormat::SampleType> supportedSampleTypes() = 0;
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};
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class Q_MULTIMEDIA_EXPORT QAbstractAudioOutput : public QObject
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{
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Q_OBJECT
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public:
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virtual void start(QIODevice *device) = 0;
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virtual QIODevice* start() = 0;
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virtual void stop() = 0;
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virtual void reset() = 0;
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virtual void suspend() = 0;
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virtual void resume() = 0;
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virtual int bytesFree() const = 0;
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virtual int periodSize() const = 0;
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virtual void setBufferSize(int value) = 0;
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virtual int bufferSize() const = 0;
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virtual void setNotifyInterval(int milliSeconds) = 0;
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virtual int notifyInterval() const = 0;
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virtual qint64 processedUSecs() const = 0;
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virtual qint64 elapsedUSecs() const = 0;
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virtual QAudio::Error error() const = 0;
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virtual QAudio::State state() const = 0;
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virtual void setFormat(const QAudioFormat& fmt) = 0;
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virtual QAudioFormat format() const = 0;
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virtual void setVolume(qreal) {}
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virtual qreal volume() const { return 1.0; }
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virtual QString category() const { return QString(); }
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virtual void setCategory(const QString &) { }
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Q_SIGNALS:
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void errorChanged(QAudio::Error);
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void stateChanged(QAudio::State);
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void notify();
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};
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class Q_MULTIMEDIA_EXPORT QAbstractAudioInput : public QObject
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{
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Q_OBJECT
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public:
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virtual void start(QIODevice *device) = 0;
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virtual QIODevice* start() = 0;
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virtual void stop() = 0;
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virtual void reset() = 0;
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virtual void suspend() = 0;
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virtual void resume() = 0;
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virtual int bytesReady() const = 0;
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virtual int periodSize() const = 0;
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virtual void setBufferSize(int value) = 0;
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virtual int bufferSize() const = 0;
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virtual void setNotifyInterval(int milliSeconds) = 0;
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virtual int notifyInterval() const = 0;
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virtual qint64 processedUSecs() const = 0;
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virtual qint64 elapsedUSecs() const = 0;
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virtual QAudio::Error error() const = 0;
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virtual QAudio::State state() const = 0;
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virtual void setFormat(const QAudioFormat& fmt) = 0;
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virtual QAudioFormat format() const = 0;
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virtual void setVolume(qreal) {}
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virtual qreal volume() const { return 1.0; }
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Q_SIGNALS:
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void errorChanged(QAudio::Error);
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void stateChanged(QAudio::State);
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void notify();
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};
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QAUDIOSYSTEM_H
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