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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* v4l2_controls.h - V4L2 Controls Support
*/
#ifndef __LIBCAMERA_V4L2_CONTROLS_H__
#define __LIBCAMERA_V4L2_CONTROLS_H__
#include <map>
#include <stdint.h>
#include <string>
#include <vector>
#include <linux/v4l2-controls.h>
#include <linux/videodev2.h>
namespace libcamera {
class V4L2ControlInfo
{
public:
V4L2ControlInfo(const struct v4l2_query_ext_ctrl &ctrl);
unsigned int id() const { return id_; }
unsigned int type() const { return type_; }
size_t size() const { return size_; }
const std::string &name() const { return name_; }
int64_t min() const { return min_; }
int64_t max() const { return max_; }
private:
unsigned int id_;
unsigned int type_;
size_t size_;
std::string name_;
int64_t min_;
int64_t max_;
};
using V4L2ControlInfoMap = std::map<unsigned int, V4L2ControlInfo>;
class V4L2Control
{
public:
V4L2Control(unsigned int id, int value = 0)
: id_(id), value_(value) {}
int64_t value() const { return value_; }
void setValue(int64_t value) { value_ = value; }
unsigned int id() const { return id_; }
private:
unsigned int id_;
int64_t value_;
};
class V4L2ControlList
{
public:
using iterator = std::vector<V4L2Control>::iterator;
using const_iterator = std::vector<V4L2Control>::const_iterator;
iterator begin() { return controls_.begin(); }
const_iterator begin() const { return controls_.begin(); }
iterator end() { return controls_.end(); }
const_iterator end() const { return controls_.end(); }
bool empty() const { return controls_.empty(); }
std::size_t size() const { return controls_.size(); }
void clear() { controls_.clear(); }
void add(unsigned int id, int64_t value = 0);
V4L2Control *getByIndex(unsigned int index);
V4L2Control *operator[](unsigned int id);
private:
std::vector<V4L2Control> controls_;
};
} /* namespace libcamera */
#endif /* __LIBCAMERA_V4L2_CONTROLS_H__ */
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