effe4d6ced
The V4L2 compatibility layer will need a way to map device numbers to libcamera Camera instances. Expose a method in the camera manager to retrieve Camera instances by devnum. The mapping from device numbers to Camera instances is optionally declared by pipeline handlers when they register cameras with the camera manager. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
61 lines
1.4 KiB
C++
61 lines
1.4 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2018, Google Inc.
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*
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* camera_manager.h - Camera management
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*/
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#ifndef __LIBCAMERA_CAMERA_MANAGER_H__
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#define __LIBCAMERA_CAMERA_MANAGER_H__
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#include <map>
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#include <memory>
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#include <string>
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#include <sys/types.h>
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#include <vector>
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#include <libcamera/object.h>
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namespace libcamera {
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class Camera;
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class DeviceEnumerator;
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class EventDispatcher;
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class PipelineHandler;
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class CameraManager : public Object
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{
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public:
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CameraManager();
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CameraManager(const CameraManager &) = delete;
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CameraManager &operator=(const CameraManager &) = delete;
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~CameraManager();
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int start();
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void stop();
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const std::vector<std::shared_ptr<Camera>> &cameras() const { return cameras_; }
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std::shared_ptr<Camera> get(const std::string &name);
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std::shared_ptr<Camera> get(dev_t devnum);
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void addCamera(std::shared_ptr<Camera> camera, dev_t devnum);
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void removeCamera(Camera *camera);
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static const std::string &version() { return version_; }
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void setEventDispatcher(std::unique_ptr<EventDispatcher> dispatcher);
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EventDispatcher *eventDispatcher();
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private:
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std::unique_ptr<DeviceEnumerator> enumerator_;
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std::vector<std::shared_ptr<PipelineHandler>> pipes_;
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std::vector<std::shared_ptr<Camera>> cameras_;
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std::map<dev_t, std::weak_ptr<Camera>> camerasByDevnum_;
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static const std::string version_;
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static CameraManager *self_;
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};
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_CAMERA_MANAGER_H__ */
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