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libcamera: ipa: Raspberry Pi IPA

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Initial implementation of the Raspberry Pi (BCM2835) libcamera IPA and
associated libraries.

All code is licensed under the BSD-2-Clause terms.
Copyright (c) 2019-2020 Raspberry Pi Trading Ltd.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Naushir Patuck 2020-05-03 16:48:42 +01:00 • committed by Laurent Pinchart
parent 740fd1b62f
commit 0db2c8dc75
69 changed files with 8242 additions and 0 deletions
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32
src/ipa/raspberrypi/controller/rpi/noise.hpp Normal file
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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2019, Raspberry Pi (Trading) Limited
*
* noise.hpp - Noise control algorithm
*/
#pragma once
#include "../algorithm.hpp"
#include "../noise_status.h"
// This is our implementation of the "noise algorithm".
namespace RPi {
class Noise : public Algorithm
{
public:
Noise(Controller *controller);
char const *Name() const override;
void SwitchMode(CameraMode const &camera_mode) override;
void Read(boost::property_tree::ptree const &params) override;
void Prepare(Metadata *image_metadata) override;
private:
// the noise profile for analogue gain of 1.0
double reference_constant_;
double reference_slope_;
std::atomic<double> mode_factor_;
};
} // namespace RPi