qffmpegaudioinput_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 QFFMPEGAUDIOINPUT_H

#define QFFMPEGAUDIOINPUT_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 <QtMultimedia/qaudioinput.h>

#include <QtMultimedia/private/qplatformaudioinput_p.h>

#include <QtMultimedia/private/qplatformaudiobufferinput_p.h>

#include <QtFFmpegMediaPluginImpl/private/qffmpegthread_p.h>

QT_BEGIN_NAMESPACE

namespace QFFmpeg {

class AudioSourceIO;

} // namespace QFFmpeg

constexpr int DefaultAudioInputBufferSize = 4096;

class QFFmpegAudioInput : public QAudioBufferSource, public QPlatformAudioInput

    // for qobject_cast

    Q_OBJECT

public:

    explicit QFFmpegAudioInput(QAudioInput *qq);

    ~QFFmpegAudioInput() override;

    void setAudioDevice(const QAudioDevice &/*device*/) override;

    void setMuted(bool /*muted*/) override;

    void setVolume(float /*volume*/) override;

    void setBufferSize(int bufferSize);

    int bufferSize() const;

protected:

    // ensures the underlying audio source is run if

    // the signal newAudioBuffer is connected

    void connectNotify(const QMetaMethod &signal) override;

    // postponly ensures that the underlying audio source is not run

    // if the signal newAudioBuffer is not connacted to any slot.

    void disconnectNotify(const QMetaMethod &signal) override;

private:

    QFFmpeg::AudioSourceIO *m_audioIO = nullptr;

    std::unique_ptr<QThread> m_inputThread;

};

QT_END_NAMESPACE

#endif // QPLATFORMAUDIOINPUT_H