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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2021, Ideas On Board
*
* agc.h - RkISP1 AGC/AEC mean-based control algorithm
*/
#pragma once
#include <linux/rkisp1-config.h>
#include <libcamera/base/utils.h>
#include <libcamera/geometry.h>
#include "algorithm.h"
namespace libcamera {
struct IPACameraSensorInfo;
namespace ipa::rkisp1::algorithms {
class Agc : public Algorithm
{
public:
Agc();
~Agc() = default;
int configure(IPAContext &context, const IPACameraSensorInfo &configInfo) override;
void prepare(IPAContext &context, rkisp1_params_cfg *params) override;
void process(IPAContext &context, const rkisp1_stat_buffer *stats) override;
private:
void computeExposure(IPAContext &Context, double yGain);
utils::Duration filterExposure(utils::Duration exposureValue);
double estimateLuminance(const rkisp1_cif_isp_ae_stat *ae, double gain);
uint64_t frameCount_;
uint32_t numCells_;
utils::Duration filteredExposure_;
};
} /* namespace ipa::rkisp1::algorithms */
} /* namespace libcamera */
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