qgstreameraudiooutput_p.h

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// Copyright (C) 2021 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 QGSTREAMERAUDIOOUTPUT_P_H

#define QGSTREAMERAUDIOOUTPUT_P_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 <QtCore/qobject.h>

#include <QtCore/private/qexpected_p.h>

#include <QtMultimedia/private/qplatformaudiooutput_p.h>

#include <common/qgst_p.h>

QT_BEGIN_NAMESPACE

class QAudioDevice;

class QGstreamerAudioOutput : public QObject, public QPlatformAudioOutput

public:

    static q23::expected<QPlatformAudioOutput *, QString> create(QAudioOutput *parent);

    ~QGstreamerAudioOutput() override;

    void setAudioDevice(const QAudioDevice &) override;

    void setVolume(float) override;

    void setMuted(bool) override;

    void setAsync(bool);

    QGstElement gstElement() const { return m_audioOutputBin; }

private:

    explicit QGstreamerAudioOutput(QAudioOutput *parent);

    QGstElement createGstElement();

    QAudioDevice m_audioDevice;

    // Gst elements

    QGstBin m_audioOutputBin;

    QGstElement m_audioQueue;

    QGstElement m_audioConvert;

    QGstElement m_audioResample;

    QGstElement m_audioVolume;

    QGstElement m_audioSink;

    bool m_sinkIsAsync = true;

};

QT_END_NAMESPACE

#endif