qpipewire_cameracontextmanager_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_CAMERACONTEXTMANAGER_P_H
#define QPIPEWIRE_CAMERACONTEXTMANAGER_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_cameradevicemonitor_p.h>
#include <QtMultimedia/private/qpipewire_instance_p.h>
#include <QtMultimedia/private/qpipewire_registry_support_p.h>
#include <QtMultimedia/private/qpipewire_support_p.h>
#include <QtMultimedia/private/qtmultimediaglobal_p.h>
#include <QtCore/qglobal.h>
 
#include <pipewire/pipewire.h>
 
#include <memory>
 
QT_BEGIN_NAMESPACE
 
namespace QtPipeWire {
 
class Q_MULTIMEDIA_EXPORT QCameraContextManager
{
public:
    QCameraContextManager();
    ~QCameraContextManager();
 
    static QCameraContextManager *instance();
 
    static bool isSupported();
 
    bool isConnected() const { return bool(m_coreConnection); }
 
    static QCameraDeviceMonitor &deviceMonitor();
 
    QPipeWireInstance &pwInstance() const { return *m_pwInstance; }
    const PwCoreConnectionHandle &coreConnection() const { return m_coreConnection; }
 
    static bool isInPwThreadLoop();
 
    PwNodeHandle bindNode(ObjectId);
 
    void syncRegistry();
 
private:
    static void objectAddedCb(void *data, uint32_t id, uint32_t permissions, const char *type,
                              uint32_t version, const struct spa_dict *props);
    static void objectRemovedCb(void *data, uint32_t id);
    void objectAdded(ObjectId, uint32_t permissions, PipewireRegistryType, uint32_t version,
                     const spa_dict &props);
    void objectRemoved(ObjectId);
 
    void startDeviceMonitor();
    void stopDeviceMonitor();
 
    bool connectToDaemon();
 
#if QT_CONFIG(dbus)
    bool connectViaPortal();
#endif
 
    const std::shared_ptr<QPipeWireInstance> m_pwInstance;
 
    PwCoreConnectionHandle m_coreConnection;
    PwRegistryHandle m_registry;
    spa_hook m_registryListener{};
 
    std::unique_ptr<QCameraDeviceMonitor> m_deviceMonitor;
};
 
} // namespace QtPipeWire
 
QT_END_NAMESPACE
 
#endif // QPIPEWIRE_CAMERACONTEXTMANAGER_P_H