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Diffstat (limited to 'src/ipa/raspberrypi/controller/rpi/agc.hpp')
| -rw-r--r-- | src/ipa/raspberrypi/controller/rpi/agc.hpp | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/src/ipa/raspberrypi/controller/rpi/agc.hpp b/src/ipa/raspberrypi/controller/rpi/agc.hpp deleted file mode 100644 index c100d312..00000000 --- a/src/ipa/raspberrypi/controller/rpi/agc.hpp +++ /dev/null @@ -1,139 +0,0 @@ -/* SPDX-License-Identifier: BSD-2-Clause */ -/* - * Copyright (C) 2019, Raspberry Pi (Trading) Limited - * - * agc.hpp - AGC/AEC control algorithm - */ -#pragma once - -#include <vector> -#include <mutex> - -#include <libcamera/base/utils.h> - -#include "../agc_algorithm.hpp" -#include "../agc_status.h" -#include "../pwl.hpp" - -// This is our implementation of AGC. - -// This is the number actually set up by the firmware, not the maximum possible -// number (which is 16). - -#define AGC_STATS_SIZE 15 - -namespace RPiController { - -struct AgcMeteringMode { - double weights[AGC_STATS_SIZE]; - void Read(boost::property_tree::ptree const ¶ms); -}; - -struct AgcExposureMode { - std::vector<libcamera::utils::Duration> shutter; - std::vector<double> gain; - void Read(boost::property_tree::ptree const ¶ms); -}; - -struct AgcConstraint { - enum class Bound { LOWER = 0, UPPER = 1 }; - Bound bound; - double q_lo; - double q_hi; - Pwl Y_target; - void Read(boost::property_tree::ptree const ¶ms); -}; - -typedef std::vector<AgcConstraint> AgcConstraintMode; - -struct AgcConfig { - void Read(boost::property_tree::ptree const ¶ms); - std::map<std::string, AgcMeteringMode> metering_modes; - std::map<std::string, AgcExposureMode> exposure_modes; - std::map<std::string, AgcConstraintMode> constraint_modes; - Pwl Y_target; - double speed; - uint16_t startup_frames; - unsigned int convergence_frames; - double max_change; - double min_change; - double fast_reduce_threshold; - double speed_up_threshold; - std::string default_metering_mode; - std::string default_exposure_mode; - std::string default_constraint_mode; - double base_ev; - libcamera::utils::Duration default_exposure_time; - double default_analogue_gain; -}; - -class Agc : public AgcAlgorithm -{ -public: - Agc(Controller *controller); - char const *Name() const override; - void Read(boost::property_tree::ptree const ¶ms) override; - // AGC handles "pausing" for itself. - bool IsPaused() const override; - void Pause() override; - void Resume() override; - unsigned int GetConvergenceFrames() const override; - void SetEv(double ev) override; - void SetFlickerPeriod(libcamera::utils::Duration flicker_period) override; - void SetMaxShutter(libcamera::utils::Duration max_shutter) override; - void SetFixedShutter(libcamera::utils::Duration fixed_shutter) override; - void SetFixedAnalogueGain(double fixed_analogue_gain) override; - void SetMeteringMode(std::string const &metering_mode_name) override; - void SetExposureMode(std::string const &exposure_mode_name) override; - void SetConstraintMode(std::string const &contraint_mode_name) override; - void SwitchMode(CameraMode const &camera_mode, Metadata *metadata) override; - void Prepare(Metadata *image_metadata) override; - void Process(StatisticsPtr &stats, Metadata *image_metadata) override; - -private: - void updateLockStatus(DeviceStatus const &device_status); - AgcConfig config_; - void housekeepConfig(); - void fetchCurrentExposure(Metadata *image_metadata); - void fetchAwbStatus(Metadata *image_metadata); - void computeGain(bcm2835_isp_stats *statistics, Metadata *image_metadata, - double &gain, double &target_Y); - void computeTargetExposure(double gain); - bool applyDigitalGain(double gain, double target_Y); - void filterExposure(bool desaturate); - void divideUpExposure(); - void writeAndFinish(Metadata *image_metadata, bool desaturate); - libcamera::utils::Duration clipShutter(libcamera::utils::Duration shutter); - AgcMeteringMode *metering_mode_; - AgcExposureMode *exposure_mode_; - AgcConstraintMode *constraint_mode_; - uint64_t frame_count_; - AwbStatus awb_; - struct ExposureValues { - ExposureValues(); - - libcamera::utils::Duration shutter; - double analogue_gain; - libcamera::utils::Duration total_exposure; - libcamera::utils::Duration total_exposure_no_dg; // without digital gain - }; - ExposureValues current_; // values for the current frame - ExposureValues target_; // calculate the values we want here - ExposureValues filtered_; // these values are filtered towards target - AgcStatus status_; - int lock_count_; - DeviceStatus last_device_status_; - libcamera::utils::Duration last_target_exposure_; - double last_sensitivity_; // sensitivity of the previous camera mode - // Below here the "settings" that applications can change. - std::string metering_mode_name_; - std::string exposure_mode_name_; - std::string constraint_mode_name_; - double ev_; - libcamera::utils::Duration flicker_period_; - libcamera::utils::Duration max_shutter_; - libcamera::utils::Duration fixed_shutter_; - double fixed_analogue_gain_; -}; - -} // namespace RPiController |