libcamera/vivid.git - libcamera pipeline handler for VIVID

Age	Commit message (Expand)	Author
2020-04-15	licenses: Replace deprecated GPL-2.0 with GPL-2.0-only	Laurent Pinchart
2019-09-23	clang-format: Don't indent namespaces	Laurent Pinchart
2019-02-13	clang-format: Remove space after template	Laurent Pinchart
2019-02-04	clang-format: Enable BreakBeforeTernaryOperators	Kieran Bingham
2019-01-22	libcamera: Add clang-format style	Laurent Pinchart

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/* SPDX-License-Identifier: BSD-2-Clause */
/*
 * Copyright (C) 2019, Raspberry Pi Ltd
 *
 * lux.h - Lux control algorithm
 */
#pragma once

#include <mutex>

#include <libcamera/base/utils.h>

#include "../lux_status.h"
#include "../algorithm.h"

/* This is our implementation of the "lux control algorithm". */

namespace RPiController {

class Lux : public Algorithm
{
public:
	Lux(Controller *controller);
	char const *name() const override;
	int read(const libcamera::YamlObject &params) override;
	void prepare(Metadata *imageMetadata) override;
	void process(StatisticsPtr &stats, Metadata *imageMetadata) override;
	void setCurrentAperture(double aperture);

private:
	/*
	 * These values define the conditions of the reference image, against
	 * which we compare the new image.
	 */
	libcamera::utils::Duration referenceShutterSpeed_;
	double referenceGain_;
	double referenceAperture_; /* units of 1/f */
	double referenceY_; /* out of 65536 */
	double referenceLux_;
	double currentAperture_;
	LuxStatus status_;
	std::mutex mutex_;
};

} /* namespace RPiController */