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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2019-2021, Raspberry Pi (Trading) Limited
*
* device_status.h - device (image sensor) status
*/
#pragma once
#include <iostream>
#include <optional>
#include <libcamera/base/utils.h>
/*
* Definition of "device metadata" which stores things like shutter time and
* analogue gain that downstream control algorithms will want to know.
*/
struct DeviceStatus {
DeviceStatus()
: shutter_speed(std::chrono::seconds(0)), frame_length(0),
analogue_gain(0.0), lens_position(0.0), aperture(0.0),
flash_intensity(0.0)
{
}
friend std::ostream &operator<<(std::ostream &out, const DeviceStatus &d);
/* time shutter is open */
libcamera::utils::Duration shutter_speed;
/* frame length given in number of lines */
uint32_t frame_length;
double analogue_gain;
/* 1.0/distance-in-metres, or 0 if unknown */
double lens_position;
/* 1/f so that brightness quadruples when this doubles, or 0 if unknown */
double aperture;
/* proportional to brightness with 0 = no flash, 1 = maximum flash */
double flash_intensity;
/* Sensor reported temperature value (in degrees) */
std::optional<double> sensor_temperature;
};
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