qpipewire_videostream_p.h

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// Copyright (C) 2026 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 QPIPEWIRE_VIDEOSTREAM_P_H

#define QPIPEWIRE_VIDEOSTREAM_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 <QtMultimedia/private/qpipewire_cameracontextmanager_p.h>

#include <QtMultimedia/private/qtmultimediaglobal_p.h>

#include <QtMultimedia/qvideoframe.h>

#include <QtMultimedia/qvideoframeformat.h>

#include <QtCore/qbytearray.h>

#include <QtCore/qmutex.h>

#include <QtCore/qobject.h>

#include <QtCore/qsize.h>

#include <spa/param/video/format.h>

QT_BEGIN_NAMESPACE

namespace QtPipeWire {

class Q_MULTIMEDIA_EXPORT QPipeWireVideoStream : public QObject

    Q_OBJECT

public:

    QPipeWireVideoStream(QCameraContextManager &context, QByteArray targetObject,

                         QVideoFrameFormat::PixelFormat requestedPixelFormat, QSize requestedSize,

                         qreal requestedFrameRate);

    ~QPipeWireVideoStream() override;

    Q_DISABLE_COPY_MOVE(QPipeWireVideoStream)

    bool start();

    QVideoFrameFormat frameFormat() const;

Q_SIGNALS:

    void newVideoFrame(const QVideoFrame &frame);

    void errorOccurred(const QString &errorString);

private:

    void onStateChanged(pw_stream_state old, pw_stream_state state, const char *error);

    void onParamChanged(uint32_t id, const spa_pod *param);

    void onProcess();

    static const pw_stream_events &streamEvents();

    QCameraContextManager &m_context;

    const QByteArray m_targetObject;

    const QVideoFrameFormat::PixelFormat m_requestedPixelFormat;

    const QSize m_requestedSize;

    const qreal m_requestedFrameRate;

    PwStreamHandle m_stream;

    spa_hook m_streamListener{};

    mutable QMutex m_formatMutex;

    QVideoFrameFormat m_frameFormat;

};

} // namespace QtPipeWire

QT_END_NAMESPACE

#endif // QPIPEWIRE_VIDEOSTREAM_P_H