libcamera/src/ipa/rkisp1/algorithms/agc.h
Kieran Bingham 87d36de543 ipa: libipa: algorithm: prepare(): Pass frame and frame Context
Pass the current frame number, and the current FrameContext for calls to
prepare.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2022-09-28 05:41:03 +03:00

50 lines
1.2 KiB
C++

/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2021-2022, 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 {
namespace ipa::rkisp1::algorithms {
class Agc : public Algorithm
{
public:
Agc();
~Agc() = default;
int configure(IPAContext &context, const IPACameraSensorInfo &configInfo) override;
void prepare(IPAContext &context, const uint32_t frame,
IPAFrameContext &frameContext,
rkisp1_params_cfg *params) override;
void process(IPAContext &context, IPAFrameContext &frameContext,
const rkisp1_stat_buffer *stats) override;
private:
void computeExposure(IPAContext &Context, double yGain, double iqMeanGain);
utils::Duration filterExposure(utils::Duration exposureValue);
double estimateLuminance(const rkisp1_cif_isp_ae_stat *ae, double gain);
double measureBrightness(const rkisp1_cif_isp_hist_stat *hist) const;
uint64_t frameCount_;
uint32_t numCells_;
uint32_t numHistBins_;
utils::Duration filteredExposure_;
};
} /* namespace ipa::rkisp1::algorithms */
} /* namespace libcamera */