a62b35b8c0
Applications now have the ability to pass in controls that need to be applied on startup, rather than doing it through Request where there might be some frames of delay in getting the controls applied. This commit adds the ability to pass in a set of libcamera controls into the pipeline handlers through the pipeline_handler::start() method. These controls are provided by the application through the camera::start() public API. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Tested-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
126 lines
2.8 KiB
C++
126 lines
2.8 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.h - Camera object interface
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*/
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#ifndef __LIBCAMERA_CAMERA_H__
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#define __LIBCAMERA_CAMERA_H__
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#include <memory>
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#include <set>
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#include <stdint.h>
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#include <string>
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#include <libcamera/controls.h>
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#include <libcamera/extensible.h>
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#include <libcamera/object.h>
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#include <libcamera/request.h>
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#include <libcamera/signal.h>
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#include <libcamera/stream.h>
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#include <libcamera/transform.h>
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namespace libcamera {
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class FrameBuffer;
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class FrameBufferAllocator;
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class PipelineHandler;
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class Request;
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class CameraConfiguration
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{
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public:
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enum Status {
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Valid,
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Adjusted,
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Invalid,
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};
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using iterator = std::vector<StreamConfiguration>::iterator;
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using const_iterator = std::vector<StreamConfiguration>::const_iterator;
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virtual ~CameraConfiguration();
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void addConfiguration(const StreamConfiguration &cfg);
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virtual Status validate() = 0;
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StreamConfiguration &at(unsigned int index);
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const StreamConfiguration &at(unsigned int index) const;
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StreamConfiguration &operator[](unsigned int index)
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{
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return at(index);
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}
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const StreamConfiguration &operator[](unsigned int index) const
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{
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return at(index);
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}
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iterator begin();
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const_iterator begin() const;
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iterator end();
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const_iterator end() const;
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bool empty() const;
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std::size_t size() const;
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Transform transform;
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protected:
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CameraConfiguration();
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std::vector<StreamConfiguration> config_;
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};
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class Camera final : public Object, public std::enable_shared_from_this<Camera>,
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public Extensible
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{
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LIBCAMERA_DECLARE_PRIVATE(Camera)
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public:
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static std::shared_ptr<Camera> create(PipelineHandler *pipe,
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const std::string &id,
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const std::set<Stream *> &streams);
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Camera(const Camera &) = delete;
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Camera &operator=(const Camera &) = delete;
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const std::string &id() const;
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Signal<Request *, FrameBuffer *> bufferCompleted;
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Signal<Request *> requestCompleted;
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Signal<Camera *> disconnected;
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int acquire();
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int release();
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const ControlInfoMap &controls() const;
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const ControlList &properties() const;
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const std::set<Stream *> &streams() const;
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std::unique_ptr<CameraConfiguration> generateConfiguration(const StreamRoles &roles = {});
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int configure(CameraConfiguration *config);
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std::unique_ptr<Request> createRequest(uint64_t cookie = 0);
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int queueRequest(Request *request);
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int start(ControlList *controls = nullptr);
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int stop();
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private:
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Camera(PipelineHandler *pipe, const std::string &id,
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const std::set<Stream *> &streams);
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~Camera();
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friend class PipelineHandler;
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void disconnect();
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void requestComplete(Request *request);
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friend class FrameBufferAllocator;
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int exportFrameBuffers(Stream *stream,
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std::vector<std::unique_ptr<FrameBuffer>> *buffers);
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};
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_CAMERA_H__ */
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