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-rw-r--r--src/ipa/raspberrypi/controller/rpi/lux.cpp104
1 files changed, 0 insertions, 104 deletions
diff --git a/src/ipa/raspberrypi/controller/rpi/lux.cpp b/src/ipa/raspberrypi/controller/rpi/lux.cpp
deleted file mode 100644
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--- a/src/ipa/raspberrypi/controller/rpi/lux.cpp
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-/* SPDX-License-Identifier: BSD-2-Clause */
-/*
- * Copyright (C) 2019, Raspberry Pi (Trading) Limited
- *
- * lux.cpp - Lux control algorithm
- */
-#include <math.h>
-
-#include <linux/bcm2835-isp.h>
-
-#include <libcamera/base/log.h>
-
-#include "../device_status.h"
-
-#include "lux.hpp"
-
-using namespace RPiController;
-using namespace libcamera;
-using namespace std::literals::chrono_literals;
-
-LOG_DEFINE_CATEGORY(RPiLux)
-
-#define NAME "rpi.lux"
-
-Lux::Lux(Controller *controller)
- : Algorithm(controller)
-{
- // Put in some defaults as there will be no meaningful values until
- // Process has run.
- status_.aperture = 1.0;
- status_.lux = 400;
-}
-
-char const *Lux::Name() const
-{
- return NAME;
-}
-
-void Lux::Read(boost::property_tree::ptree const &params)
-{
- reference_shutter_speed_ =
- params.get<double>("reference_shutter_speed") * 1.0us;
- reference_gain_ = params.get<double>("reference_gain");
- reference_aperture_ = params.get<double>("reference_aperture", 1.0);
- reference_Y_ = params.get<double>("reference_Y");
- reference_lux_ = params.get<double>("reference_lux");
- current_aperture_ = reference_aperture_;
-}
-
-void Lux::SetCurrentAperture(double aperture)
-{
- current_aperture_ = aperture;
-}
-
-void Lux::Prepare(Metadata *image_metadata)
-{
- std::unique_lock<std::mutex> lock(mutex_);
- image_metadata->Set("lux.status", status_);
-}
-
-void Lux::Process(StatisticsPtr &stats, Metadata *image_metadata)
-{
- DeviceStatus device_status;
- if (image_metadata->Get("device.status", device_status) == 0) {
- double current_gain = device_status.analogue_gain;
- double current_aperture = device_status.aperture.value_or(current_aperture_);
- uint64_t sum = 0;
- uint32_t num = 0;
- uint32_t *bin = stats->hist[0].g_hist;
- const int num_bins = sizeof(stats->hist[0].g_hist) /
- sizeof(stats->hist[0].g_hist[0]);
- for (int i = 0; i < num_bins; i++)
- sum += bin[i] * (uint64_t)i, num += bin[i];
- // add .5 to reflect the mid-points of bins
- double current_Y = sum / (double)num + .5;
- double gain_ratio = reference_gain_ / current_gain;
- double shutter_speed_ratio =
- reference_shutter_speed_ / device_status.shutter_speed;
- double aperture_ratio = reference_aperture_ / current_aperture;
- double Y_ratio = current_Y * (65536 / num_bins) / reference_Y_;
- double estimated_lux = shutter_speed_ratio * gain_ratio *
- aperture_ratio * aperture_ratio *
- Y_ratio * reference_lux_;
- LuxStatus status;
- status.lux = estimated_lux;
- status.aperture = current_aperture;
- LOG(RPiLux, Debug) << ": estimated lux " << estimated_lux;
- {
- std::unique_lock<std::mutex> lock(mutex_);
- status_ = status;
- }
- // Overwrite the metadata here as well, so that downstream
- // algorithms get the latest value.
- image_metadata->Set("lux.status", status);
- } else
- LOG(RPiLux, Warning) << ": no device metadata";
-}
-
-// Register algorithm with the system.
-static Algorithm *Create(Controller *controller)
-{
- return (Algorithm *)new Lux(controller);
-}
-static RegisterAlgorithm reg(NAME, &Create);