qcoreaudiosessionmanager_p.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef IOSAUDIOSESSIONMANAGER_H
#define IOSAUDIOSESSIONMANAGER_H
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
 
#include <QObject>
#ifdef QT_DEBUG_COREAUDIO
# include <QtCore/QDebug>
#endif
 
@class CoreAudioSessionObserver;
 
QT_BEGIN_NAMESPACE
 
class CoreAudioSessionManager : public QObject
{
    Q_OBJECT
public:
    enum AudioSessionCategorys {
        Ambient,
        SoloAmbient,
        Playback,
        Record,
        PlayAndRecord,
        AudioProcessing,
        MultiRoute
    };
    enum AudioSessionCategoryOptions {
        None = 0,
        MixWithOthers = 1,
        DuckOthers = 2,
        AllowBluetooth = 4,
        DefaultToSpeaker = 8
    };
    enum AudioSessionModes {
        Default,
        VoiceChat,
        GameChat,
        VideoRecording,
        Measurement,
        MoviePlayback
    };
 
    static CoreAudioSessionManager& instance();
 
    bool setActive(bool active);
    bool setCategory(AudioSessionCategorys category, AudioSessionCategoryOptions options = None);
    bool setMode(AudioSessionModes mode);
 
    AudioSessionCategorys category();
    AudioSessionModes mode();
 
    QList<QByteArray> inputDevices();
    QList<QByteArray> outputDevices();
 
    float currentIOBufferDuration();
    float preferredSampleRate();
 
signals:
    void activeChanged();
    void categoryChanged();
    void modeChanged();
    void routeChanged();
    void devicesAvailableChanged();
 
private:
    CoreAudioSessionManager();
    ~CoreAudioSessionManager();
    CoreAudioSessionManager(CoreAudioSessionManager const &copy);
    CoreAudioSessionManager& operator =(CoreAudioSessionManager const &copy);
 
    CoreAudioSessionObserver *m_sessionObserver;
};
 
#ifdef QT_DEBUG_COREAUDIO
QDebug operator <<(QDebug dbg, CoreAudioSessionManager::AudioSessionCategorys category);
QDebug operator <<(QDebug dbg, CoreAudioSessionManager::AudioSessionCategoryOptions option);
QDebug operator <<(QDebug dbg, CoreAudioSessionManager::AudioSessionModes mode);
#endif
 
QT_END_NAMESPACE
 
#endif // IOSAUDIOSESSIONMANAGER_H