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-rw-r--r--	vimc.cpp	2371	logplain

generated by cgit v1.2.1 (git 2.18.0) at 2025-02-19 16:20:55 +0000

/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * v4l2_subdevice.h - V4L2 Subdevice
 */
#ifndef __LIBCAMERA_INTERNAL_V4L2_SUBDEVICE_H__
#define __LIBCAMERA_INTERNAL_V4L2_SUBDEVICE_H__

#include <memory>
#include <string>
#include <vector>

#include <libcamera/class.h>
#include <libcamera/geometry.h>

#include "libcamera/internal/formats.h"
#include "libcamera/internal/log.h"
#include "libcamera/internal/media_object.h"
#include "libcamera/internal/v4l2_device.h"

namespace libcamera {

class MediaDevice;

struct V4L2SubdeviceFormat {
	uint32_t mbus_code;
	Size size;

	const std::string toString() const;
	uint8_t bitsPerPixel() const;
};

class V4L2Subdevice : public V4L2Device
{
public:
	using Formats = std::map<unsigned int, std::vector<SizeRange>>;

	enum Whence {
		ActiveFormat,
		TryFormat,
	};

	explicit V4L2Subdevice(const MediaEntity *entity);
	~V4L2Subdevice();

	int open();

	const MediaEntity *entity() const { return entity_; }

	int getSelection(unsigned int pad, unsigned int target,
			 Rectangle *rect);
	int setSelection(unsigned int pad, unsigned int target,
			 Rectangle *rect);

	Formats formats(unsigned int pad);

	int getFormat(unsigned int pad, V4L2SubdeviceFormat *format,