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Sensor frame length is made up of active and inactive (blanking) lines. The minimum and maximum frame length values may be used by pipeline handlers to limit frame durations based on the sensor mode capabilities. Store the minimum and maximum allowable frame length values (in lines) in the CameraSensorInfo structure. These values are computed in CameraSensor::sensorInfo() by querying the sensor subdevice V4L2_CID_VBLANK control limits. This in turn means that V4L2_CID_VBLANK is now a mandatory subdevice control. Signed-off-by: Naushir Patuck <naush@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>
101 lines
2.3 KiB
C++
101 lines
2.3 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* camera_sensor.h - A camera sensor
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*/
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#ifndef __LIBCAMERA_INTERNAL_CAMERA_SENSOR_H__
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#define __LIBCAMERA_INTERNAL_CAMERA_SENSOR_H__
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#include <memory>
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#include <string>
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#include <vector>
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#include <libcamera/controls.h>
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#include <libcamera/geometry.h>
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#include "libcamera/internal/formats.h"
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#include "libcamera/internal/log.h"
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#include "libcamera/internal/v4l2_subdevice.h"
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namespace libcamera {
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class MediaEntity;
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struct CameraSensorInfo {
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std::string model;
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uint32_t bitsPerPixel;
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Size activeAreaSize;
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Rectangle analogCrop;
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Size outputSize;
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uint64_t pixelRate;
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uint32_t lineLength;
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uint32_t minFrameLength;
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uint32_t maxFrameLength;
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};
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class CameraSensor : protected Loggable
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{
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public:
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explicit CameraSensor(const MediaEntity *entity);
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~CameraSensor();
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CameraSensor(const CameraSensor &) = delete;
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CameraSensor &operator=(const CameraSensor &) = delete;
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int init();
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const std::string &model() const { return model_; }
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const std::string &id() const { return id_; }
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const MediaEntity *entity() const { return entity_; }
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const std::vector<unsigned int> &mbusCodes() const { return mbusCodes_; }
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const std::vector<Size> &sizes() const { return sizes_; }
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const Size &resolution() const { return resolution_; }
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V4L2SubdeviceFormat getFormat(const std::vector<unsigned int> &mbusCodes,
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const Size &size) const;
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int setFormat(V4L2SubdeviceFormat *format);
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const ControlInfoMap &controls() const;
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ControlList getControls(const std::vector<uint32_t> &ids);
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int setControls(ControlList *ctrls);
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V4L2Subdevice *device() { return subdev_.get(); }
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const ControlList &properties() const { return properties_; }
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int sensorInfo(CameraSensorInfo *info) const;
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protected:
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std::string logPrefix() const override;
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private:
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int generateId();
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int validateSensorDriver();
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void initVimcDefaultProperties();
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int initProperties();
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const MediaEntity *entity_;
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std::unique_ptr<V4L2Subdevice> subdev_;
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unsigned int pad_;
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std::string model_;
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std::string id_;
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V4L2Subdevice::Formats formats_;
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Size resolution_;
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std::vector<unsigned int> mbusCodes_;
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std::vector<Size> sizes_;
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Size pixelArraySize_;
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Rectangle activeArea_;
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ControlList properties_;
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};
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_INTERNAL_CAMERA_SENSOR_H__ */
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