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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2019, Raspberry Pi Ltd
*
* controller.h - ISP controller interface
*/
#pragma once
/*
* The Controller is simply a container for a collecting together a number of
* "control algorithms" (such as AWB etc.) and for running them all in a
* convenient manner.
*/
#include <vector>
#include <string>
#include "libcamera/internal/yaml_parser.h"
#include "camera_mode.h"
#include "device_status.h"
#include "metadata.h"
#include "statistics.h"
namespace RPiController {
class Algorithm;
typedef std::unique_ptr<Algorithm> AlgorithmPtr;
/*
* The Controller holds a pointer to some global_metadata, which is how
* different controllers and control algorithms within them can exchange
* information. The Prepare function returns a pointer to metadata for this
* specific image, and which should be passed on to the Process function.
*/
class Controller
{
public:
struct HardwareConfig {
libcamera::Size agcRegions;
libcamera::Size agcZoneWeights;
libcamera::Size awbRegions;
libcamera::Size cacRegions;
libcamera::Size focusRegions;
unsigned int numHistogramBins;
unsigned int numGammaPoints;
unsigned int pipelineWidth;
bool statsInline;
};
Controller();
~Controller();
int read(char const *filename);
void initialise();
void switchMode(CameraMode const &cameraMode, Metadata *metadata);
void prepare(Metadata *imageMetadata);
void process(StatisticsPtr stats, Metadata *imageMetadata);
Metadata &getGlobalMetadata();
Algorithm *getAlgorithm(std::string const &name) const;
const std::string &getTarget() const;
const HardwareConfig &getHardwareConfig() const;
protected:
int createAlgorithm(const std::string &name, const libcamera::YamlObject ¶ms);
Metadata globalMetadata_;
std::vector<AlgorithmPtr> algorithms_;
bool switchModeCalled_;
private:
std::string target_;
};
} /* namespace RPiController */
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