test/ipa

/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * geometry.h - Geometry-related classes
 */

#pragma once

#include <algorithm>
#include <string>

#include <libcamera/compiler.h>

namespace libcamera {

class Rectangle;

class Point
{
public:
	constexpr Point()
		: x(0), y(0)
	{
	}

	constexpr Point(int xpos, int ypos)
		: x(xpos), y(ypos)
	{
	}

	int x;
	int y;

	const std::string toString() const;

	constexpr Point operator-() const
	{
		return { -x, -y };
	}
};

bool operator==(const Point &lhs, const Point &rhs);
static inline bool operator!=(const Point &lhs, const Point &rhs)
{
	return !(lhs == rhs);
}

class Size
{
public:
	constexpr Size()
		: Size(0, 0)
	{
	}

	constexpr Size(unsigned int w, unsigned int h)
		: width(w), height(h)
	{
	}

	unsigned int width;
	unsigned int height;

	bool isNull() const { return !width && !height; }
	const std::string toString() const;

	Size &alignDownTo(unsigned int hAlignment, unsigned int vAlignment)
	{
		width = width / hAlignment * hAlignment;
		height = height / vAlignment * vAlignment;
		return *this;
	}

	Size &alignUpTo(unsigned int hAlignment, unsigned int vAlignment)
	{
		width = (width + hAlignment - 1) / hAlignment * hAlignment;
		height = (height + vAlignment - 1) / vAlignment * vAlignment;
		return *this;
	}

	Size &boundTo(const Size &bound)
	{
		width = std::min(width, bound.width);
		height = std::min(height, bound.height);
		return *this;
	}

	Size &expandTo(const Size &expand)
	{
		width = std::max(width, expand.width);
		height = std::max(height, expand.height);
		return *this;
	}

	Size &growBy(const Size &margins)
	{
		width += margins.width;
		height += margins.height;
		return *this;
	}

	Size &shrinkBy(const Size &margins)
	{
		width = width > margins.width ? width - margins.width : 0;
		height = height > margins.height ? height - margins.height : 0;
		return *this;
	}

	__nodiscard constexpr Size alignedDownTo(unsigned int hAlignment,
						 unsigned int vAlignment) const
	{
		return {
			width / hAlignment * hAlignment,
			height / vAlignment * vAlignment
		};
	}

	__nodiscard constexpr Size alignedUpTo(unsigned int hAlignment,
					       unsigned int vAlignment) const
	{
		return {
			(width + hAlignment - 1) / hAlignment * hAlignment,
			(height + vAlignment - 1) / vAlignment * vAlignment
		};
	}

	__nodiscard constexpr Size boundedTo(const Size &bound) const
	{
		return {
			std::min(width, bound.width),
			std::min(height, bound.height)
		};
	}

	__nodiscard constexpr Size expandedTo(const Size &expand) const
	{
		return {
			std::max(width, expand.width),
			std::max(height, expand.height)
		};
	}

	__nodiscard constexpr Size grownBy(const Size &margins) const
	{
		return {
			width + margins.width,
			height + margins.height
		};
	}

	__nodiscard constexpr Size shrunkBy(const Size &margins) const
	{
		return {
			width > margins.width ? width - margins.width : 0,
			height > margins.height ? height - margins.height : 0
		};
	}

	__nodiscard Size boundedToAspectRatio(const Size &ratio) const;
	__nodiscard Size expandedToAspectRatio(const Size &ratio) const;

	__nodiscard Rectangle centeredTo(const Point &center) const;

	Size operator*(float factor) const;
	Size operator/(float factor) const;

	Size &operator*=(float factor);
	Size &operator/=(float factor);
};

bool operator==(const Size &lhs, const Size &rhs);
bool operator<(const Size &lhs, const Size &rhs);

static inline bool operator!=(const Size &lhs, const Size &rhs)
{
	return !(lhs == rhs);
}

static inline bool operator<=(const Size &lhs, const Size &rhs)
{
	return lhs < rhs || lhs == rhs;
}

static inline bool operator>(const Size &lhs, const Size &rhs)
{
	return !(lhs <= rhs);
}

static inline bool operator>=(const Size &lhs, const Size &rhs)
{
	return !(lhs < rhs);
}

class SizeRange
{
public:
	SizeRange()
		: hStep(0), vStep(0)
	{
	}

	SizeRange(const Size &size)
		: min(size), max(size), hStep(1), vStep(1)
	{
	}

	SizeRange(const Size &minSize, const Size &maxSize)
		: min(minSize), max(maxSize), hStep(1), vStep(1)
	{
	}

	SizeRange(const Size &minSize, const Size &maxSize,
		  unsigned int hstep, unsigned int vstep)
		: min(minSize), max(maxSize), hStep(hstep), vStep(vstep)
	{
	}

	bool contains(const Size &size) const;

	std::string toString() const;

	Size min;
	Size max;
	unsigned int hStep;
	unsigned int vStep;
};

bool operator==(const SizeRange &lhs, const SizeRange &rhs);
static inline bool operator!=(const SizeRange &lhs, const SizeRange &rhs)
{
	return !(lhs == rhs);
}

class Rectangle
{
public:
	constexpr Rectangle()
		: Rectangle(0, 0, 0, 0)
	{
	}

	constexpr Rectangle(int xpos, int ypos, const Size &size)
		: x(xpos), y(ypos), width(size.width), height(size.height)
	{
	}

	constexpr Rectangle(int xpos, int ypos, unsigned int w, unsigned int h)
		: x(xpos), y(ypos), width(w), height(h)
	{
	}

	constexpr explicit Rectangle(const Size &size)
		: x(0), y(0), width(size.width), height(size.height)
	{
	}

	int x;
	int y;
	unsigned int width;
	unsigned int height;

	bool isNull() const { return !width && !height; }
	const std::string toString() const;

	Point center() const;

	Size size() const
	{
		return { width, height };
	}

	Point topLeft() const
	{
		return { x, y };
	}

	Rectangle &scaleBy(const Size &numerator, const Size &denominator);
	Rectangle &translateBy(const Point &point);

	__nodiscard Rectangle boundedTo(const Rectangle &bound) const;
	__nodiscard Rectangle enclosedIn(const Rectangle &boundary) const;
	__nodiscard Rectangle scaledBy(const Size &numerator,
				       const Size &denominator) const;
	__nodiscard Rectangle translatedBy(const Point &point) const;
};

bool operator==(const Rectangle &lhs, const Rectangle &rhs);
static inline bool operator!=(const Rectangle &lhs, const Rectangle &rhs)
{
	return !(lhs == rhs);
}

} /* namespace libcamera */
/* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */
/*
 *  Video for Linux Two header file
 *
 *  Copyright (C) 1999-2012 the contributors
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  Alternatively you can redistribute this file under the terms of the
 *  BSD license as stated below:
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *  3. The names of its contributors may not be used to endorse or promote
 *     products derived from this software without specific prior written
 *     permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 *  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *	Header file for v4l or V4L2 drivers and applications
 * with public API.
 * All kernel-specific stuff were moved to media/v4l2-dev.h, so
 * no #if __KERNEL tests are allowed here
 *
 *	See https://linuxtv.org for more info
 *
 *	Author: Bill Dirks <bill@thedirks.org>
 *		Justin Schoeman
 *              Hans Verkuil <hverkuil@xs4all.nl>
 *		et al.
 */
#ifndef __LINUX_VIDEODEV2_H
#define __LINUX_VIDEODEV2_H

#include <sys/time.h>

#include <linux/ioctl.h>
#include <linux/types.h>
#include <linux/v4l2-common.h>
#include <linux/v4l2-controls.h>

/*
 * Common stuff for both V4L1 and V4L2
 * Moved from videodev.h
 */
#define VIDEO_MAX_FRAME               32
#define VIDEO_MAX_PLANES               8

/*
 *	M I S C E L L A N E O U S
 */

/*  Four-character-code (FOURCC) */
#define v4l2_fourcc(a, b, c, d)\
	((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24))
#define v4l2_fourcc_be(a, b, c, d)	(v4l2_fourcc(a, b, c, d) | (1U << 31))

/*
 *	E N U M S
 */
enum v4l2_field {
	V4L2_FIELD_ANY           = 0, /* driver can choose from none,
					 top, bottom, interlaced
					 depending on whatever it thinks
					 is approximate ... */
	V4L2_FIELD_NONE          = 1, /* this device has no fields ... */
	V4L2_FIELD_TOP           = 2, /* top field only */
	V4L2_FIELD_BOTTOM        = 3, /* bottom field only */
	V4L2_FIELD_INTERLACED    = 4, /* both fields interlaced */
	V4L2_FIELD_SEQ_TB        = 5, /* both fields sequential into one
					 buffer, top-bottom order */
	V4L2_FIELD_SEQ_BT        = 6, /* same as above + bottom-top order */
	V4L2_FIELD_ALTERNATE     = 7, /* both fields alternating into
					 separate buffers */
	V4L2_FIELD_INTERLACED_TB = 8, /* both fields interlaced, top field
					 first and the top field is
					 transmitted first */
	V4L2_FIELD_INTERLACED_BT = 9, /* both fields interlaced, top field
					 first and the bottom field is
					 transmitted first */
};
#define V4L2_FIELD_HAS_TOP(field)	\
	((field) == V4L2_FIELD_TOP	||\
	 (field) == V4L2_FIELD_INTERLACED ||\
	 (field) == V4L2_FIELD_INTERLACED_TB ||\
	 (field) == V4L2_FIELD_INTERLACED_BT ||\
	 (field) == V4L2_FIELD_SEQ_TB	||\
	 (field) == V4L2_FIELD_SEQ_BT)
#define V4L2_FIELD_HAS_BOTTOM(field)	\
	((field) == V4L2_FIELD_BOTTOM	||\
	 (field) == V4L2_FIELD_INTERLACED ||\
	 (field) == V4L2_FIELD_INTERLACED_TB ||\
	 (field) == V4L2_FIELD_INTERLACED_BT ||\
	 (field) == V4L2_FIELD_SEQ_TB	||\
	 (field) == V4L2_FIELD_SEQ_BT)
#define V4L2_FIELD_HAS_BOTH(field)	\
	((field) == V4L2_FIELD_INTERLACED ||\
	 (field) == V4L2_FIELD_INTERLACED_TB ||\
	 (field) == V4L2_FIELD_INTERLACED_BT ||\
	 (field) == V4L2_FIELD_SEQ_TB ||\
	 (field) == V4L2_FIELD_SEQ_BT)
#define V4L2_FIELD_HAS_T_OR_B(field)	\
	((field) == V4L2_FIELD_BOTTOM ||\
	 (field) == V4L2_FIELD_TOP ||\
	 (field) == V4L2_FIELD_ALTERNATE)
#define V4L2_FIELD_IS_INTERLACED(field) \
	((field) == V4L2_FIELD_INTERLACED ||\
	 (field) == V4L2_FIELD_INTERLACED_TB ||\
	 (field) == V4L2_FIELD_INTERLACED_BT)
#define V4L2_FIELD_IS_SEQUENTIAL(field) \
	((field) == V4L2_FIELD_SEQ_TB ||\
	 (field) == V4L2_FIELD_SEQ_BT)

enum v4l2_buf_type {
	V4L2_BUF_TYPE_VIDEO_CAPTURE        = 1,
	V4L2_BUF_TYPE_VIDEO_OUTPUT         = 2,
	V4L2_BUF_TYPE_VIDEO_OVERLAY        = 3,
	V4L2_BUF_TYPE_VBI_CAPTURE          = 4,
	V4L2_BUF_TYPE_VBI_OUTPUT           = 5,
	V4L2_BUF_TYPE_SLICED_VBI_CAPTURE   = 6,
	V4L2_BUF_TYPE_SLICED_VBI_OUTPUT    = 7,
	V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8,
	V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE = 9,
	V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE  = 10,
	V4L2_BUF_TYPE_SDR_CAPTURE          = 11,
	V4L2_BUF_TYPE_SDR_OUTPUT           = 12,
	V4L2_BUF_TYPE_META_CAPTURE         = 13,
	V4L2_BUF_TYPE_META_OUTPUT	   = 14,
	/* Deprecated, do not use */
	V4L2_BUF_TYPE_PRIVATE              = 0x80,
};

#define V4L2_TYPE_IS_MULTIPLANAR(type)			\
	((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE	\
	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)

#define V4L2_TYPE_IS_OUTPUT(type)				\
	((type) == V4L2_BUF_TYPE_VIDEO_OUTPUT			\
	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE		\
	 || (type) == V4L2_BUF_TYPE_VIDEO_OVERLAY		\
	 || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY	\
	 || (type) == V4L2_BUF_TYPE_VBI_OUTPUT			\
	 || (type) == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT		\
	 || (type) == V4L2_BUF_TYPE_SDR_OUTPUT			\
	 || (type) == V4L2_BUF_TYPE_META_OUTPUT)

enum v4l2_tuner_type {
	V4L2_TUNER_RADIO	     = 1,
	V4L2_TUNER_ANALOG_TV	     = 2,
	V4L2_TUNER_DIGITAL_TV	     = 3,
	V4L2_TUNER_SDR               = 4,
	V4L2_TUNER_RF                = 5,
};

/* Deprecated, do not use */
#define V4L2_TUNER_ADC  V4L2_TUNER_SDR

enum v4l2_memory {
	V4L2_MEMORY_MMAP             = 1,
	V4L2_MEMORY_USERPTR          = 2,
	V4L2_MEMORY_OVERLAY          = 3,
	V4L2_MEMORY_DMABUF           = 4,
};

/* see also http://vektor.theorem.ca/graphics/ycbcr/ */
enum v4l2_colorspace {
	/*
	 * Default colorspace, i.e. let the driver figure it out.
	 * Can only be used with video capture.
	 */
	V4L2_COLORSPACE_DEFAULT       = 0,

	/* SMPTE 170M: used for broadcast NTSC/PAL SDTV */
	V4L2_COLORSPACE_SMPTE170M     = 1,

	/* Obsolete pre-1998 SMPTE 240M HDTV standard, superseded by Rec 709 */
	V4L2_COLORSPACE_SMPTE240M     = 2,

	/* Rec.709: used for HDTV */
	V4L2_COLORSPACE_REC709        = 3,

	/*
	 * Deprecated, do not use. No driver will ever return this. This was
	 * based on a misunderstanding of the bt878 datasheet.
	 */
	V4L2_COLORSPACE_BT878         = 4,

	/*
	 * NTSC 1953 colorspace. This only makes sense when dealing with
	 * really, really old NTSC recordings. Superseded by SMPTE 170M.
	 */
	V4L2_COLORSPACE_470_SYSTEM_M  = 5,

	/*
	 * EBU Tech 3213 PAL/SECAM colorspace. This only makes sense when
	 * dealing with really old PAL/SECAM recordings. Superseded by
	 * SMPTE 170M.
	 */
	V4L2_COLORSPACE_470_SYSTEM_BG = 6,

	/*
	 * Effectively shorthand for V4L2_COLORSPACE_SRGB, V4L2_YCBCR_ENC_601
	 * and V4L2_QUANTIZATION_FULL_RANGE. To be used for (Motion-)JPEG.
	 */
	V4L2_COLORSPACE_JPEG          = 7,

	/* For RGB colorspaces such as produces by most webcams. */
	V4L2_COLORSPACE_SRGB          = 8,

	/* opRGB colorspace */
	V4L2_COLORSPACE_OPRGB         = 9,

	/* BT.2020 colorspace, used for UHDTV. */
	V4L2_COLORSPACE_BT2020        = 10,

	/* Raw colorspace: for RAW unprocessed images */
	V4L2_COLORSPACE_RAW           = 11,

	/* DCI-P3 colorspace, used by cinema projectors */
	V4L2_COLORSPACE_DCI_P3        = 12,
};

/*
 * Determine how COLORSPACE_DEFAULT should map to a proper colorspace.
 * This depends on whether this is a SDTV image (use SMPTE 170M), an
 * HDTV image (use Rec. 709), or something else (use sRGB).
 */
#define V4L2_MAP_COLORSPACE_DEFAULT(is_sdtv, is_hdtv) \
	((is_sdtv) ? V4L2_COLORSPACE_SMPTE170M : \
	 ((is_hdtv) ? V4L2_COLORSPACE_REC709 : V4L2_COLORSPACE_SRGB))

enum v4l2_xfer_func {
	/*
	 * Mapping of V4L2_XFER_FUNC_DEFAULT to actual transfer functions
	 * for the various colorspaces:
	 *
	 * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
	 * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_REC709 and
	 * V4L2_COLORSPACE_BT2020: V4L2_XFER_FUNC_709
	 *
	 * V4L2_COLORSPACE_SRGB, V4L2_COLORSPACE_JPEG: V4L2_XFER_FUNC_SRGB
	 *
	 * V4L2_COLORSPACE_OPRGB: V4L2_XFER_FUNC_OPRGB
	 *
	 * V4L2_COLORSPACE_SMPTE240M: V4L2_XFER_FUNC_SMPTE240M
	 *
	 * V4L2_COLORSPACE_RAW: V4L2_XFER_FUNC_NONE
	 *
	 * V4L2_COLORSPACE_DCI_P3: V4L2_XFER_FUNC_DCI_P3
	 */
	V4L2_XFER_FUNC_DEFAULT     = 0,
	V4L2_XFER_FUNC_709         = 1,
	V4L2_XFER_FUNC_SRGB        = 2,
	V4L2_XFER_FUNC_OPRGB       = 3,
	V4L2_XFER_FUNC_SMPTE240M   = 4,
	V4L2_XFER_FUNC_NONE        = 5,
	V4L2_XFER_FUNC_DCI_P3      = 6,
	V4L2_XFER_FUNC_SMPTE2084   = 7,
};

/*
 * Determine how XFER_FUNC_DEFAULT should map to a proper transfer function.
 * This depends on the colorspace.
 */
#define V4L2_MAP_XFER_FUNC_DEFAULT(colsp) \
	((colsp) == V4L2_COLORSPACE_OPRGB ? V4L2_XFER_FUNC_OPRGB : \
	 ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_XFER_FUNC_SMPTE240M : \
	  ((colsp) == V4L2_COLORSPACE_DCI_P3 ? V4L2_XFER_FUNC_DCI_P3 : \
	   ((colsp) == V4L2_COLORSPACE_RAW ? V4L2_XFER_FUNC_NONE : \
	    ((colsp) == V4L2_COLORSPACE_SRGB || (colsp) == V4L2_COLORSPACE_JPEG ? \
	     V4L2_XFER_FUNC_SRGB : V4L2_XFER_FUNC_709)))))

enum v4l2_ycbcr_encoding {
	/*
	 * Mapping of V4L2_YCBCR_ENC_DEFAULT to actual encodings for the
	 * various colorspaces:
	 *
	 * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M,
	 * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_SRGB,
	 * V4L2_COLORSPACE_OPRGB and V4L2_COLORSPACE_JPEG: V4L2_YCBCR_ENC_601
	 *
	 * V4L2_COLORSPACE_REC709 and V4L2_COLORSPACE_DCI_P3: V4L2_YCBCR_ENC_709
	 *
	 * V4L2_COLORSPACE_BT2020: V4L2_YCBCR_ENC_BT2020
	 *
	 * V4L2_COLORSPACE_SMPTE240M: V4L2_YCBCR_ENC_SMPTE240M
	 */
	V4L2_YCBCR_ENC_DEFAULT        = 0,

	/* ITU-R 601 -- SDTV */
	V4L2_YCBCR_ENC_601            = 1,

	/* Rec. 709 -- HDTV */
	V4L2_YCBCR_ENC_709            = 2,

	/* ITU-R 601/EN 61966-2-4 Extended Gamut -- SDTV */
	V4L2_YCBCR_ENC_XV601          = 3,

	/* Rec. 709/EN 61966-2-4 Extended Gamut -- HDTV */
	V4L2_YCBCR_ENC_XV709          = 4,

	/*
	 * sYCC (Y'CbCr encoding of sRGB), identical to ENC_601. It was added
	 * originally due to a misunderstanding of the sYCC standard. It should
	 * not be used, instead use V4L2_YCBCR_ENC_601.
	 */
	V4L2_YCBCR_ENC_SYCC           = 5,

	/* BT.2020 Non-constant Luminance Y'CbCr */
	V4L2_YCBCR_ENC_BT2020         = 6,

	/* BT.2020 Constant Luminance Y'CbcCrc */
	V4L2_YCBCR_ENC_BT2020_CONST_LUM = 7,

	/* SMPTE 240M -- Obsolete HDTV */
	V4L2_YCBCR_ENC_SMPTE240M      = 8,
};

/*
 * enum v4l2_hsv_encoding values should not collide with the ones from
 * enum v4l2_ycbcr_encoding.
 */
enum v4l2_hsv_encoding {

	/* Hue mapped to 0 - 179 */
	V4L2_HSV_ENC_180		= 128,

	/* Hue mapped to 0-255 */
	V4L2_HSV_ENC_256		= 129,
};

/*
 * Determine how YCBCR_ENC_DEFAULT should map to a proper Y'CbCr encoding.
 * This depends on the colorspace.
 */
#define V4L2_MAP_YCBCR_ENC_DEFAULT(colsp) \
	(((colsp) == V4L2_COLORSPACE_REC709 || \
	  (colsp) == V4L2_COLORSPACE_DCI_P3) ? V4L2_YCBCR_ENC_709 : \
	 ((colsp) == V4L2_COLORSPACE_BT2020 ? V4L2_YCBCR_ENC_BT2020 : \
	  ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_YCBCR_ENC_SMPTE240M : \
	   V4L2_YCBCR_ENC_601)))

enum v4l2_quantization {
	/*
	 * The default for R'G'B' quantization is always full range, except
	 * for the BT2020 colorspace. For Y'CbCr the quantization is always
	 * limited range, except for COLORSPACE_JPEG: this is full range.
	 */
	V4L2_QUANTIZATION_DEFAULT     = 0,
	V4L2_QUANTIZATION_FULL_RANGE  = 1,
	V4L2_QUANTIZATION_LIM_RANGE   = 2,
};

/*
 * Determine how QUANTIZATION_DEFAULT should map to a proper quantization.
 * This depends on whether the image is RGB or not, the colorspace and the
 * Y'CbCr encoding.
 */
#define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb_or_hsv, colsp, ycbcr_enc) \
	(((is_rgb_or_hsv) && (colsp) == V4L2_COLORSPACE_BT2020) ? \
	 V4L2_QUANTIZATION_LIM_RANGE : \
	 (((is_rgb_or_hsv) || (colsp) == V4L2_COLORSPACE_JPEG) ? \
	 V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE))

/*
 * Deprecated names for opRGB colorspace (IEC 61966-2-5)
 *
 * WARNING: Please don't use these deprecated defines in your code, as
 * there is a chance we have to remove them in the future.
 */
#define V4L2_COLORSPACE_ADOBERGB V4L2_COLORSPACE_OPRGB
#define V4L2_XFER_FUNC_ADOBERGB  V4L2_XFER_FUNC_OPRGB

enum v4l2_priority {
	V4L2_PRIORITY_UNSET       = 0,  /* not initialized */
	V4L2_PRIORITY_BACKGROUND  = 1,
	V4L2_PRIORITY_INTERACTIVE = 2,
	V4L2_PRIORITY_RECORD      = 3,
	V4L2_PRIORITY_DEFAULT     = V4L2_PRIORITY_INTERACTIVE,
};

struct v4l2_rect {
	__s32   left;
	__s32   top;
	__u32   width;
	__u32   height;
};

struct v4l2_fract {
	__u32   numerator;
	__u32   denominator;
};

/**
  * struct v4l2_capability - Describes V4L2 device caps returned by VIDIOC_QUERYCAP
  *
  * @driver:	   name of the driver module (e.g. "bttv")
  * @card:	   name of the card (e.g. "Hauppauge WinTV")
  * @bus_info:	   name of the bus (e.g. "PCI:" + pci_name(pci_dev) )
  * @version:	   KERNEL_VERSION
  * @capabilities: capabilities of the physical device as a whole
  * @device_caps:  capabilities accessed via this particular device (node)
  * @reserved:	   reserved fields for future extensions
  */
struct v4l2_capability {
	__u8	driver[16];
	__u8	card[32];
	__u8	bus_info[32];
	__u32   version;
	__u32	capabilities;
	__u32	device_caps;
	__u32	reserved[3];
};

/* Values for 'capabilities' field */
#define V4L2_CAP_VIDEO_CAPTURE		0x00000001  /* Is a video capture device */
#define V4L2_CAP_VIDEO_OUTPUT		0x00000002  /* Is a video output device */
#define V4L2_CAP_VIDEO_OVERLAY		0x00000004  /* Can do video overlay */
#define V4L2_CAP_VBI_CAPTURE		0x00000010  /* Is a raw VBI capture device */
#define V4L2_CAP_VBI_OUTPUT		0x00000020  /* Is a raw VBI output device */
#define V4L2_CAP_SLICED_VBI_CAPTURE	0x00000040  /* Is a sliced VBI capture device */
#define V4L2_CAP_SLICED_VBI_OUTPUT	0x00000080  /* Is a sliced VBI output device */
#define V4L2_CAP_RDS_CAPTURE		0x00000100  /* RDS data capture */
#define V4L2_CAP_VIDEO_OUTPUT_OVERLAY	0x00000200  /* Can do video output overlay */
#define V4L2_CAP_HW_FREQ_SEEK		0x00000400  /* Can do hardware frequency seek  */
#define V4L2_CAP_RDS_OUTPUT		0x00000800  /* Is an RDS encoder */

/* Is a video capture device that supports multiplanar formats */
#define V4L2_CAP_VIDEO_CAPTURE_MPLANE	0x00001000
/* Is a video output device that supports multiplanar formats */
#define V4L2_CAP_VIDEO_OUTPUT_MPLANE	0x00002000
/* Is a video mem-to-mem device that supports multiplanar formats */
#define V4L2_CAP_VIDEO_M2M_MPLANE	0x00004000
/* Is a video mem-to-mem device */
#define V4L2_CAP_VIDEO_M2M		0x00008000

#define V4L2_CAP_TUNER			0x00010000  /* has a tuner */
#define V4L2_CAP_AUDIO			0x00020000  /* has audio support */
#define V4L2_CAP_RADIO			0x00040000  /* is a radio device */
#define V4L2_CAP_MODULATOR		0x00080000  /* has a modulator */

#define V4L2_CAP_SDR_CAPTURE		0x00100000  /* Is a SDR capture device */
#define V4L2_CAP_EXT_PIX_FORMAT		0x00200000  /* Supports the extended pixel format */
#define V4L2_CAP_SDR_OUTPUT		0x00400000  /* Is a SDR output device */
#define V4L2_CAP_META_CAPTURE		0x00800000  /* Is a metadata capture device */

#define V4L2_CAP_READWRITE              0x01000000  /* read/write systemcalls */
#define V4L2_CAP_ASYNCIO                0x02000000  /* async I/O */
#define V4L2_CAP_STREAMING              0x04000000  /* streaming I/O ioctls */
#define V4L2_CAP_META_OUTPUT		0x08000000  /* Is a metadata output device */

#define V4L2_CAP_TOUCH                  0x10000000  /* Is a touch device */

#define V4L2_CAP_DEVICE_CAPS            0x80000000  /* sets device capabilities field */

/*
 *	V I D E O   I M A G E   F O R M A T
 */
struct v4l2_pix_format {
	__u32			width;
	__u32			height;
	__u32			pixelformat;
	__u32			field;		/* enum v4l2_field */
	__u32			bytesperline;	/* for padding, zero if unused */
	__u32			sizeimage;
	__u32			colorspace;	/* enum v4l2_colorspace */
	__u32			priv;		/* private data, depends on pixelformat */
	__u32			flags;		/* format flags (V4L2_PIX_FMT_FLAG_*) */
	union {
		/* enum v4l2_ycbcr_encoding */
		__u32			ycbcr_enc;
		/* enum v4l2_hsv_encoding */
		__u32			hsv_enc;
	};
	__u32			quantization;	/* enum v4l2_quantization */
	__u32			xfer_func;	/* enum v4l2_xfer_func */
};

/*      Pixel format         FOURCC                          depth  Description  */

/* RGB formats */
#define V4L2_PIX_FMT_RGB332  v4l2_fourcc('R', 'G', 'B', '1') /*  8  RGB-3-3-2     */
#define V4L2_PIX_FMT_RGB444  v4l2_fourcc('R', '4', '4', '4') /* 16  xxxxrrrr ggggbbbb */
#define V4L2_PIX_FMT_ARGB444 v4l2_fourcc('A', 'R', '1', '2') /* 16  aaaarrrr ggggbbbb */
#define V4L2_PIX_FMT_XRGB444 v4l2_fourcc('X', 'R', '1', '2') /* 16  xxxxrrrr ggggbbbb */
#define V4L2_PIX_FMT_RGBA444 v4l2_fourcc('R', 'A', '1', '2') /* 16  rrrrgggg bbbbaaaa */
#define V4L2_PIX_FMT_RGBX444 v4l2_fourcc('R', 'X', '1', '2') /* 16  rrrrgggg bbbbxxxx */
#define V4L2_PIX_FMT_ABGR444 v4l2_fourcc('A', 'B', '1', '2') /* 16  aaaabbbb ggggrrrr */
#define V4L2_PIX_FMT_XBGR444 v4l2_fourcc('X', 'B', '1', '2') /* 16  xxxxbbbb ggggrrrr */

/*
 * Originally this had 'BA12' as fourcc, but this clashed with the older
 * V4L2_PIX_FMT_SGRBG12 which inexplicably used that same fourcc.
 * So use 'GA12' instead for V4L2_PIX_FMT_BGRA444.
 */
#define V4L2_PIX_FMT_BGRA444 v4l2_fourcc('G', 'A', '1', '2') /* 16  bbbbgggg rrrraaaa */
#define V4L2_PIX_FMT_BGRX444 v4l2_fourcc('B', 'X', '1', '2') /* 16  bbbbgggg rrrrxxxx */
#define V4L2_PIX_FMT_RGB555  v4l2_fourcc('R', 'G', 'B', 'O') /* 16  RGB-5-5-5     */
#define V4L2_PIX_FMT_ARGB555 v4l2_fourcc('A', 'R', '1', '5') /* 16  ARGB-1-5-5-5  */
#define V4L2_PIX_FMT_XRGB555 v4l2_fourcc('X', 'R', '1', '5') /* 16  XRGB-1-5-5-5  */
#define V4L2_PIX_FMT_RGBA555 v4l2_fourcc('R', 'A', '1', '5') /* 16  RGBA-5-5-5-1  */
#define V4L2_PIX_FMT_RGBX555 v4l2_fourcc('R', 'X', '1', '5') /* 16  RGBX-5-5-5-1  */
#define V4L2_PIX_FMT_ABGR555 v4l2_fourcc('A', 'B', '1', '5') /* 16  ABGR-1-5-5-5  */
#define V4L2_PIX_FMT_XBGR555 v4l2_fourcc('X', 'B', '1', '5') /* 16  XBGR-1-5-5-5  */
#define V4L2_PIX_FMT_BGRA555 v4l2_fourcc('B', 'A', '1', '5') /* 16  BGRA-5-5-5-1  */
#define V4L2_PIX_FMT_BGRX555 v4l2_fourcc('B', 'X', '1', '5') /* 16  BGRX-5-5-5-1  */
#define V4L2_PIX_FMT_RGB565  v4l2_fourcc('R', 'G', 'B', 'P') /* 16  RGB-5-6-5     */
#define V4L2_PIX_FMT_RGB555X v4l2_fourcc('R', 'G', 'B', 'Q') /* 16  RGB-5-5-5 BE  */
#define V4L2_PIX_FMT_ARGB555X v4l2_fourcc_be('A', 'R', '1', '5') /* 16  ARGB-5-5-5 BE */
#define V4L2_PIX_FMT_XRGB555X v4l2_fourcc_be('X', 'R', '1', '5') /* 16  XRGB-5-5-5 BE */
#define V4L2_PIX_FMT_RGB565X v4l2_fourcc('R', 'G', 'B', 'R') /* 16  RGB-5-6-5 BE  */
#define V4L2_PIX_FMT_BGR666  v4l2_fourcc('B', 'G', 'R', 'H') /* 18  BGR-6-6-6	  */
#define V4L2_PIX_FMT_BGR24   v4l2_fourcc('B', 'G', 'R', '3') /* 24  BGR-8-8-8     */
#define V4L2_PIX_FMT_RGB24   v4l2_fourcc('R', 'G', 'B', '3') /* 24  RGB-8-8-8     */
#define V4L2_PIX_FMT_BGR32   v4l2_fourcc('B', 'G', 'R', '4') /* 32  BGR-8-8-8-8   */
#define V4L2_PIX_FMT_ABGR32  v4l2_fourcc('A', 'R', '2', '4') /* 32  BGRA-8-8-8-8  */
#define V4L2_PIX_FMT_XBGR32  v4l2_fourcc('X', 'R', '2', '4') /* 32  BGRX-8-8-8-8  */
#define V4L2_PIX_FMT_BGRA32  v4l2_fourcc('R', 'A', '2', '4') /* 32  ABGR-8-8-8-8  */
#define V4L2_PIX_FMT_BGRX32  v4l2_fourcc('R', 'X', '2', '4') /* 32  XBGR-8-8-8-8  */
#define V4L2_PIX_FMT_RGB32   v4l2_fourcc('R', 'G', 'B', '4') /* 32  RGB-8-8-8-8   */
#define V4L2_PIX_FMT_RGBA32  v4l2_fourcc('A', 'B', '2', '4') /* 32  RGBA-8-8-8-8  */
#define V4L2_PIX_FMT_RGBX32  v4l2_fourcc('X', 'B', '2', '4') /* 32  RGBX-8-8-8-8  */
#define V4L2_PIX_FMT_ARGB32  v4l2_fourcc('B', 'A', '2', '4') /* 32  ARGB-8-8-8-8  */
#define V4L2_PIX_FMT_XRGB32  v4l2_fourcc('B', 'X', '2', '4') /* 32  XRGB-8-8-8-8  */

/* Grey formats */
#define V4L2_PIX_FMT_GREY    v4l2_fourcc('G', 'R', 'E', 'Y') /*  8  Greyscale     */
#define V4L2_PIX_FMT_Y4      v4l2_fourcc('Y', '0', '4', ' ') /*  4  Greyscale     */
#define V4L2_PIX_FMT_Y6      v4l2_fourcc('Y', '0', '6', ' ') /*  6  Greyscale     */
#define V4L2_PIX_FMT_Y10     v4l2_fourcc('Y', '1', '0', ' ') /* 10  Greyscale     */
#define V4L2_PIX_FMT_Y12     v4l2_fourcc('Y', '1', '2', ' ') /* 12  Greyscale     */
#define V4L2_PIX_FMT_Y16     v4l2_fourcc('Y', '1', '6', ' ') /* 16  Greyscale     */
#define V4L2_PIX_FMT_Y16_BE  v4l2_fourcc_be('Y', '1', '6', ' ') /* 16  Greyscale BE  */

/* Grey bit-packed formats */
#define V4L2_PIX_FMT_Y10BPACK    v4l2_fourcc('Y', '1', '0', 'B') /* 10  Greyscale bit-packed */
#define V4L2_PIX_FMT_Y10P    v4l2_fourcc('Y', '1', '0', 'P') /* 10  Greyscale, MIPI RAW10 packed */

/* Palette formats */
#define V4L2_PIX_FMT_PAL8    v4l2_fourcc('P', 'A', 'L', '8') /*  8  8-bit palette */

/* Chrominance formats */
#define V4L2_PIX_FMT_UV8     v4l2_fourcc('U', 'V', '8', ' ') /*  8  UV 4:4 */

/* Luminance+Chrominance formats */
#define V4L2_PIX_FMT_YUYV    v4l2_fourcc('Y', 'U', 'Y', 'V') /* 16  YUV 4:2:2     */
#define V4L2_PIX_FMT_YYUV    v4l2_fourcc('Y', 'Y', 'U', 'V') /* 16  YUV 4:2:2     */
#define V4L2_PIX_FMT_YVYU    v4l2_fourcc('Y', 'V', 'Y', 'U') /* 16 YVU 4:2:2 */
#define V4L2_PIX_FMT_UYVY    v4l2_fourcc('U', 'Y', 'V', 'Y') /* 16  YUV 4:2:2     */
#define V4L2_PIX_FMT_VYUY    v4l2_fourcc('V', 'Y', 'U', 'Y') /* 16  YUV 4:2:2     */
#define V4L2_PIX_FMT_Y41P    v4l2_fourcc('Y', '4', '1', 'P') /* 12  YUV 4:1:1     */
#define V4L2_PIX_FMT_YUV444  v4l2_fourcc('Y', '4', '4', '4') /* 16  xxxxyyyy uuuuvvvv */
#define V4L2_PIX_FMT_YUV555  v4l2_fourcc('Y', 'U', 'V', 'O') /* 16  YUV-5-5-5     */
#define V4L2_PIX_FMT_YUV565  v4l2_fourcc('Y', 'U', 'V', 'P') /* 16  YUV-5-6-5     */
#define V4L2_PIX_FMT_YUV32   v4l2_fourcc('Y', 'U', 'V', '4') /* 32  YUV-8-8-8-8   */
#define V4L2_PIX_FMT_AYUV32  v4l2_fourcc('A', 'Y', 'U', 'V') /* 32  AYUV-8-8-8-8  */
#define V4L2_PIX_FMT_XYUV32  v4l2_fourcc('X', 'Y', 'U', 'V') /* 32  XYUV-8-8-8-8  */
#define V4L2_PIX_FMT_VUYA32  v4l2_fourcc('V', 'U', 'Y', 'A') /* 32  VUYA-8-8-8-8  */
#define V4L2_PIX_FMT_VUYX32  v4l2_fourcc('V', 'U', 'Y', 'X') /* 32  VUYX-8-8-8-8  */
#define V4L2_PIX_FMT_HI240   v4l2_fourcc('H', 'I', '2', '4') /*  8  8-bit color   */
#define V4L2_PIX_FMT_HM12    v4l2_fourcc('H', 'M', '1', '2') /*  8  YUV 4:2:0 16x16 macroblocks */
#define V4L2_PIX_FMT_M420    v4l2_fourcc('M', '4', '2', '0') /* 12  YUV 4:2:0 2 lines y, 1 line uv interleaved */

/* two planes -- one Y, one Cr + Cb interleaved  */
#define V4L2_PIX_FMT_NV12    v4l2_fourcc('N', 'V', '1', '2') /* 12  Y/CbCr 4:2:0  */
#define V4L2_PIX_FMT_NV21    v4l2_fourcc('N', 'V', '2', '1') /* 12  Y/CrCb 4:2:0  */
#define V4L2_PIX_FMT_NV16    v4l2_fourcc('N', 'V', '1', '6') /* 16  Y/CbCr 4:2:2  */
#define V4L2_PIX_FMT_NV61    v4l2_fourcc('N', 'V', '6', '1') /* 16  Y/CrCb 4:2:2  */
#define V4L2_PIX_FMT_NV24    v4l2_fourcc('N', 'V', '2', '4') /* 24  Y/CbCr 4:4:4  */
#define V4L2_PIX_FMT_NV42    v4l2_fourcc('N', 'V', '4', '2') /* 24  Y/CrCb 4:4:4  */

/* two non contiguous planes - one Y, one Cr + Cb interleaved  */
#define V4L2_PIX_FMT_NV12M   v4l2_fourcc('N', 'M', '1', '2') /* 12  Y/CbCr 4:2:0  */
#define V4L2_PIX_FMT_NV21M   v4l2_fourcc('N', 'M', '2', '1') /* 21  Y/CrCb 4:2:0  */
#define V4L2_PIX_FMT_NV16M   v4l2_fourcc('N', 'M', '1', '6') /* 16  Y/CbCr 4:2:2  */
#define V4L2_PIX_FMT_NV61M   v4l2_fourcc('N', 'M', '6', '1') /* 16  Y/CrCb 4:2:2  */
#define V4L2_PIX_FMT_NV12MT  v4l2_fourcc('T', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 64x32 macroblocks */
#define V4L2_PIX_FMT_NV12MT_16X16 v4l2_fourcc('V', 'M', '1', '2') /* 12  Y/CbCr 4:2:0 16x16 macroblocks */

/* three planes - Y Cb, Cr */
#define V4L2_PIX_FMT_YUV410  v4l2_fourcc('Y', 'U', 'V', '9') /*  9  YUV 4:1:0     */
#define V4L2_PIX_FMT_YVU410  v4l2_fourcc('Y', 'V', 'U', '9') /*  9  YVU 4:1:0     */
#define V4L2_PIX_FMT_YUV411P v4l2_fourcc('4', '1', '1', 'P') /* 12  YVU411 planar */
#define V4L2_PIX_FMT_YUV420  v4l2_fourcc('Y', 'U', '1', '2') /* 12  YUV 4:2:0     */
#define V4L2_PIX_FMT_YVU420  v4l2_fourcc('Y', 'V', '1', '2') /* 12  YVU 4:2:0     */
#define V4L2_PIX_FMT_YUV422P v4l2_fourcc('4', '2', '2', 'P') /* 16  YVU422 planar */

/* three non contiguous planes - Y, Cb, Cr */
#define V4L2_PIX_FMT_YUV420M v4l2_fourcc('Y', 'M', '1', '2') /* 12  YUV420 planar */
#define V4L2_PIX_FMT_YVU420M v4l2_fourcc('Y', 'M', '2', '1') /* 12  YVU420 planar */
#define V4L2_PIX_FMT_YUV422M v4l2_fourcc('Y', 'M', '1', '6') /* 16  YUV422 planar */
#define V4L2_PIX_FMT_YVU422M v4l2_fourcc('Y', 'M', '6', '1') /* 16  YVU422 planar */
#define V4L2_PIX_FMT_YUV444M v4l2_fourcc('Y', 'M', '2', '4') /* 24  YUV444 planar */
#define V4L2_PIX_FMT_YVU444M v4l2_fourcc('Y', 'M', '4', '2') /* 24  YVU444 planar */

/* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
#define V4L2_PIX_FMT_SBGGR8  v4l2_fourcc('B', 'A', '8', '1') /*  8  BGBG.. GRGR.. */
#define V4L2_PIX_FMT_SGBRG8  v4l2_fourcc('G', 'B', 'R', 'G') /*  8  GBGB.. RGRG.. */
#define V4L2_PIX_FMT_SGRBG8  v4l2_fourcc('G', 'R', 'B', 'G') /*  8  GRGR.. BGBG.. */
#define V4L2_PIX_FMT_SRGGB8  v4l2_fourcc('R', 'G', 'G', 'B') /*  8  RGRG.. GBGB.. */
#define V4L2_PIX_FMT_SBGGR10 v4l2_fourcc('B', 'G', '1', '0') /* 10  BGBG.. GRGR.. */
#define V4L2_PIX_FMT_SGBRG10 v4l2_fourcc('G', 'B', '1', '0') /* 10  GBGB.. RGRG.. */
#define V4L2_PIX_FMT_SGRBG10 v4l2_fourcc('B', 'A', '1', '0') /* 10  GRGR.. BGBG.. */
#define V4L2_PIX_FMT_SRGGB10 v4l2_fourcc('R', 'G', '1', '0') /* 10  RGRG.. GBGB.. */
	/* 10bit raw bayer packed, 5 bytes for every 4 pixels */
#define V4L2_PIX_FMT_SBGGR10P v4l2_fourcc('p', 'B', 'A', 'A')
#define V4L2_PIX_FMT_SGBRG10P v4l2_fourcc('p', 'G', 'A', 'A')
#define V4L2_PIX_FMT_SGRBG10P v4l2_fourcc('p', 'g', 'A', 'A')
#define V4L2_PIX_FMT_SRGGB10P v4l2_fourcc('p', 'R', 'A', 'A')
	/* 10bit raw bayer a-law compressed to 8 bits */
#define V4L2_PIX_FMT_SBGGR10ALAW8 v4l2_fourcc('a', 'B', 'A', '8')
#define V4L2_PIX_FMT_SGBRG10ALAW8 v4l2_fourcc('a', 'G', 'A', '8')
#define V4L2_PIX_FMT_SGRBG10ALAW8 v4l2_fourcc('a', 'g', 'A', '8')
#define V4L2_PIX_FMT_SRGGB10ALAW8 v4l2_fourcc('a', 'R', 'A', '8')
	/* 10bit raw bayer DPCM compressed to 8 bits */
#define V4L2_PIX_FMT_SBGGR10DPCM8 v4l2_fourcc('b', 'B', 'A', '8')
#define V4L2_PIX_FMT_SGBRG10DPCM8 v4l2_fourcc('b', 'G', 'A', '8')
#define V4L2_PIX_FMT_SGRBG10DPCM8 v4l2_fourcc('B', 'D', '1', '0')
#define V4L2_PIX_FMT_SRGGB10DPCM8 v4l2_fourcc('b', 'R', 'A', '8')
#define V4L2_PIX_FMT_SBGGR12 v4l2_fourcc('B', 'G', '1', '2') /* 12  BGBG.. GRGR.. */
#define V4L2_PIX_FMT_SGBRG12 v4l2_fourcc('G', 'B', '1', '2') /* 12  GBGB.. RGRG.. */
#define V4L2_PIX_FMT_SGRBG12 v4l2_fourcc('B', 'A', '1', '2') /* 12  GRGR.. BGBG.. */
#define V4L2_PIX_FMT_SRGGB12 v4l2_fourcc('R', 'G', '1', '2') /* 12  RGRG.. GBGB.. */
	/* 12bit raw bayer packed, 6 bytes for every 4 pixels */
#define V4L2_PIX_FMT_SBGGR12P v4l2_fourcc('p', 'B', 'C', 'C')
#define V4L2_PIX_FMT_SGBRG12P v4l2_fourcc('p', 'G', 'C', 'C')
#define V4L2_PIX_FMT_SGRBG12P v4l2_fourcc('p', 'g', 'C', 'C')
#define V4L2_PIX_FMT_SRGGB12P v4l2_fourcc('p', 'R', 'C', 'C')
	/* 14bit raw bayer packed, 7 bytes for every 4 pixels */
#define V4L2_PIX_FMT_SBGGR14P v4l2_fourcc('p', 'B', 'E', 'E')
#define V4L2_PIX_FMT_SGBRG14P v4l2_fourcc('p', 'G', 'E', 'E')
#define V4L2_PIX_FMT_SGRBG14P v4l2_fourcc('p', 'g', 'E', 'E')
#define V4L2_PIX_FMT_SRGGB14P v4l2_fourcc('p', 'R', 'E', 'E')
#define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16  BGBG.. GRGR.. */
#define V4L2_PIX_FMT_SGBRG16 v4l2_fourcc('G', 'B', '1', '6') /* 16  GBGB.. RGRG.. */
#define V4L2_PIX_FMT_SGRBG16 v4l2_fourcc('G', 'R', '1', '6') /* 16  GRGR.. BGBG.. */
#define V4L2_PIX_FMT_SRGGB16 v4l2_fourcc('R', 'G', '1', '6') /* 16  RGRG.. GBGB.. */

/* HSV formats */
#define V4L2_PIX_FMT_HSV24 v4l2_fourcc('H', 'S', 'V', '3')
#define V4L2_PIX_FMT_HSV32 v4l2_fourcc('H', 'S', 'V', '4')

/* compressed formats */
#define V4L2_PIX_FMT_MJPEG    v4l2_fourcc('M', 'J', 'P', 'G') /* Motion-JPEG   */
#define V4L2_PIX_FMT_JPEG     v4l2_fourcc('J', 'P', 'E', 'G') /* JFIF JPEG     */
#define V4L2_PIX_FMT_DV       v4l2_fourcc('d', 'v', 's', 'd') /* 1394          */
#define V4L2_PIX_FMT_MPEG     v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 Multiplexed */
#define V4L2_PIX_FMT_H264     v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */
#define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1') /* H264 without start codes */
#define V4L2_PIX_FMT_H264_MVC v4l2_fourcc('M', '2', '6', '4') /* H264 MVC */
#define V4L2_PIX_FMT_H263     v4l2_fourcc('H', '2', '6', '3') /* H263          */
#define V4L2_PIX_FMT_MPEG1    v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES     */
#define V4L2_PIX_FMT_MPEG2    v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES     */
#define V4L2_PIX_FMT_MPEG2_SLICE v4l2_fourcc('M', 'G', '2', 'S') /* MPEG-2 parsed slice data */
#define V4L2_PIX_FMT_MPEG4    v4l2_fourcc('M', 'P', 'G', '4') /* MPEG-4 part 2 ES */
#define V4L2_PIX_FMT_XVID     v4l2_fourcc('X', 'V', 'I', 'D') /* Xvid           */
#define V4L2_PIX_FMT_VC1_ANNEX_G v4l2_fourcc('V', 'C', '1', 'G') /* SMPTE 421M Annex G compliant stream */
#define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L') /* SMPTE 421M Annex L compliant stream */
#define V4L2_PIX_FMT_VP8      v4l2_fourcc('V', 'P', '8', '0') /* VP8 */
#define V4L2_PIX_FMT_VP9      v4l2_fourcc('V', 'P', '9', '0') /* VP9 */
#define V4L2_PIX_FMT_HEVC     v4l2_fourcc('H', 'E', 'V', 'C') /* HEVC aka H.265 */
#define V4L2_PIX_FMT_FWHT     v4l2_fourcc('F', 'W', 'H', 'T') /* Fast Walsh Hadamard Transform (vicodec) */
#define V4L2_PIX_FMT_FWHT_STATELESS     v4l2_fourcc('S', 'F', 'W', 'H') /* Stateless FWHT (vicodec) */

/*  Vendor-specific formats   */
#define V4L2_PIX_FMT_CPIA1    v4l2_fourcc('C', 'P', 'I', 'A') /* cpia1 YUV */
#define V4L2_PIX_FMT_WNVA     v4l2_fourcc('W', 'N', 'V', 'A') /* Winnov hw compress */
#define V4L2_PIX_FMT_SN9C10X  v4l2_fourcc('S', '9', '1', '0') /* SN9C10x compression */
#define V4L2_PIX_FMT_SN9C20X_I420 v4l2_fourcc('S', '9', '2', '0') /* SN9C20x YUV 4:2:0 */
#define V4L2_PIX_FMT_PWC1     v4l2_fourcc('P', 'W', 'C', '1') /* pwc older webcam */
#define V4L2_PIX_FMT_PWC2     v4l2_fourcc('P', 'W', 'C', '2') /* pwc newer webcam */
#define V4L2_PIX_FMT_ET61X251 v4l2_fourcc('E', '6', '2', '5') /* ET61X251 compression */
#define V4L2_PIX_FMT_SPCA501  v4l2_fourcc('S', '5', '0', '1') /* YUYV per line */
#define V4L2_PIX_FMT_SPCA505  v4l2_fourcc('S', '5', '0', '5') /* YYUV per line */
#define V4L2_PIX_FMT_SPCA508  v4l2_fourcc('S', '5', '0', '8') /* YUVY per line */
#define V4L2_PIX_FMT_SPCA561  v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */
#define V4L2_PIX_FMT_PAC207   v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer */
#define V4L2_PIX_FMT_MR97310A v4l2_fourcc('M', '3', '1', '0') /* compressed BGGR bayer */
#define V4L2_PIX_FMT_JL2005BCD v4l2_fourcc('J', 'L', '2', '0') /* compressed RGGB bayer */
#define V4L2_PIX_FMT_SN9C2028 v4l2_fourcc('S', 'O', 'N', 'X') /* compressed GBRG bayer */
#define V4L2_PIX_FMT_SQ905C   v4l2_fourcc('9', '0', '5', 'C') /* compressed RGGB bayer */
#define V4L2_PIX_FMT_PJPG     v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */
#define V4L2_PIX_FMT_OV511    v4l2_fourcc('O', '5', '1', '1') /* ov511 JPEG */
#define V4L2_PIX_FMT_OV518    v4l2_fourcc('O', '5', '1', '8') /* ov518 JPEG */
#define V4L2_PIX_FMT_STV0680  v4l2_fourcc('S', '6', '8', '0') /* stv0680 bayer */
#define V4L2_PIX_FMT_TM6000   v4l2_fourcc('T', 'M', '6', '0') /* tm5600/tm60x0 */
#define V4L2_PIX_FMT_CIT_YYVYUY v4l2_fourcc('C', 'I', 'T', 'V') /* one line of Y then 1 line of VYUY */
#define V4L2_PIX_FMT_KONICA420  v4l2_fourcc('K', 'O', 'N', 'I') /* YUV420 planar in blocks of 256 pixels */
#define V4L2_PIX_FMT_JPGL	v4l2_fourcc('J', 'P', 'G', 'L') /* JPEG-Lite */
#define V4L2_PIX_FMT_SE401      v4l2_fourcc('S', '4', '0', '1') /* se401 janggu compressed rgb */
#define V4L2_PIX_FMT_S5C_UYVY_JPG v4l2_fourcc('S', '5', 'C', 'I') /* S5C73M3 interleaved UYVY/JPEG */
#define V4L2_PIX_FMT_Y8I      v4l2_fourcc('Y', '8', 'I', ' ') /* Greyscale 8-bit L/R interleaved */
#define V4L2_PIX_FMT_Y12I     v4l2_fourcc('Y', '1', '2', 'I') /* Greyscale 12-bit L/R interleaved */
#define V4L2_PIX_FMT_Z16      v4l2_fourcc('Z', '1', '6', ' ') /* Depth data 16-bit */
#define V4L2_PIX_FMT_MT21C    v4l2_fourcc('M', 'T', '2', '1') /* Mediatek compressed block mode  */
#define V4L2_PIX_FMT_INZI     v4l2_fourcc('I', 'N', 'Z', 'I') /* Intel Planar Greyscale 10-bit and Depth 16-bit */
#define V4L2_PIX_FMT_SUNXI_TILED_NV12 v4l2_fourcc('S', 'T', '1', '2') /* Sunxi Tiled NV12 Format */
#define V4L2_PIX_FMT_CNF4     v4l2_fourcc('C', 'N', 'F', '4') /* Intel 4-bit packed depth confidence information */

/* 10bit raw bayer packed, 32 bytes for every 25 pixels, last LSB 6 bits unused */
#define V4L2_PIX_FMT_IPU3_SBGGR10	v4l2_fourcc('i', 'p', '3', 'b') /* IPU3 packed 10-bit BGGR bayer */
#define V4L2_PIX_FMT_IPU3_SGBRG10	v4l2_fourcc('i', 'p', '3', 'g') /* IPU3 packed 10-bit GBRG bayer */
#define V4L2_PIX_FMT_IPU3_SGRBG10	v4l2_fourcc('i', 'p', '3', 'G') /* IPU3 packed 10-bit GRBG bayer */
#define V4L2_PIX_FMT_IPU3_SRGGB10	v4l2_fourcc('i', 'p', '3', 'r') /* IPU3 packed 10-bit RGGB bayer */

/* SDR formats - used only for Software Defined Radio devices */
#define V4L2_SDR_FMT_CU8          v4l2_fourcc('C', 'U', '0', '8') /* IQ u8 */
#define V4L2_SDR_FMT_CU16LE       v4l2_fourcc('C', 'U', '1', '6') /* IQ u16le */
#define V4L2_SDR_FMT_CS8          v4l2_fourcc('C', 'S', '0', '8') /* complex s8 */
#define V4L2_SDR_FMT_CS14LE       v4l2_fourcc('C', 'S', '1', '4') /* complex s14le */
#define V4L2_SDR_FMT_RU12LE       v4l2_fourcc('R', 'U', '1', '2') /* real u12le */
#define V4L2_SDR_FMT_PCU16BE	  v4l2_fourcc('P', 'C', '1', '6') /* planar complex u16be */
#define V4L2_SDR_FMT_PCU18BE	  v4l2_fourcc('P', 'C', '1', '8') /* planar complex u18be */
#define V4L2_SDR_FMT_PCU20BE	  v4l2_fourcc('P', 'C', '2', '0') /* planar complex u20be */

/* Touch formats - used for Touch devices */
#define V4L2_TCH_FMT_DELTA_TD16	v4l2_fourcc('T', 'D', '1', '6') /* 16-bit signed deltas */
#define V4L2_TCH_FMT_DELTA_TD08	v4l2_fourcc('T', 'D', '0', '8') /* 8-bit signed deltas */
#define V4L2_TCH_FMT_TU16	v4l2_fourcc('T', 'U', '1', '6') /* 16-bit unsigned touch data */
#define V4L2_TCH_FMT_TU08	v4l2_fourcc('T', 'U', '0', '8') /* 8-bit unsigned touch data */

/* Meta-data formats */
#define V4L2_META_FMT_VSP1_HGO    v4l2_fourcc('V', 'S', 'P', 'H') /* R-Car VSP1 1-D Histogram */
#define V4L2_META_FMT_VSP1_HGT    v4l2_fourcc('V', 'S', 'P', 'T') /* R-Car VSP1 2-D Histogram */
#define V4L2_META_FMT_UVC         v4l2_fourcc('U', 'V', 'C', 'H') /* UVC Payload Header metadata */
#define V4L2_META_FMT_D4XX        v4l2_fourcc('D', '4', 'X', 'X') /* D4XX Payload Header metadata */

/* Vendor specific - used for RK_ISP1 camera sub-system */
#define V4L2_META_FMT_RK_ISP1_PARAMS	v4l2_fourcc('R', 'K', '1', 'P') /* Rockchip ISP1 params */
#define V4L2_META_FMT_RK_ISP1_STAT_3A	v4l2_fourcc('R', 'K', '1', 'S') /* Rockchip ISP1 3A statistics */

/* priv field value to indicates that subsequent fields are valid. */
#define V4L2_PIX_FMT_PRIV_MAGIC		0xfeedcafe

/* Flags */
#define V4L2_PIX_FMT_FLAG_PREMUL_ALPHA	0x00000001

/*
 *	F O R M A T   E N U M E R A T I O N
 */
struct v4l2_fmtdesc {
	__u32		    index;             /* Format number      */
	__u32		    type;              /* enum v4l2_buf_type */
	__u32               flags;
	__u8		    description[32];   /* Description string */
	__u32		    pixelformat;       /* Format fourcc      */
	__u32		    reserved[4];
};

#define V4L2_FMT_FLAG_COMPRESSED		0x0001
#define V4L2_FMT_FLAG_EMULATED			0x0002
#define V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM	0x0004
#define V4L2_FMT_FLAG_DYN_RESOLUTION		0x0008

	/* Frame Size and frame rate enumeration */
/*
 *	F R A M E   S I Z E   E N U M E R A T I O N
 */
enum v4l2_frmsizetypes {
	V4L2_FRMSIZE_TYPE_DISCRETE	= 1,
	V4L2_FRMSIZE_TYPE_CONTINUOUS	= 2,
	V4L2_FRMSIZE_TYPE_STEPWISE	= 3,
};

struct v4l2_frmsize_discrete {
	__u32			width;		/* Frame width [pixel] */
	__u32			height;		/* Frame height [pixel] */
};

struct v4l2_frmsize_stepwise {
	__u32			min_width;	/* Minimum frame width [pixel] */
	__u32			max_width;	/* Maximum frame width [pixel] */
	__u32			step_width;	/* Frame width step size [pixel] */
	__u32			min_height;	/* Minimum frame height [pixel] */
	__u32			max_height;	/* Maximum frame height [pixel] */
	__u32			step_height;	/* Frame height step size [pixel] */
};

struct v4l2_frmsizeenum {
	__u32			index;		/* Frame size number */
	__u32			pixel_format;	/* Pixel format */
	__u32			type;		/* Frame size type the device supports. */

	union {					/* Frame size */
		struct v4l2_frmsize_discrete	discrete;
		struct v4l2_frmsize_stepwise	stepwise;
	};

	__u32   reserved[2];			/* Reserved space for future use */
};

/*
 *	F R A M E   R A T E   E N U M E R A T I O N
 */
enum v4l2_frmivaltypes {
	V4L2_FRMIVAL_TYPE_DISCRETE	= 1,
	V4L2_FRMIVAL_TYPE_CONTINUOUS	= 2,
	V4L2_FRMIVAL_TYPE_STEPWISE	= 3,
};

struct v4l2_frmival_stepwise {
	struct v4l2_fract	min;		/* Minimum frame interval [s] */
	struct v4l2_fract	max;		/* Maximum frame interval [s] */
	struct v4l2_fract	step;		/* Frame interval step size [s] */
};

struct v4l2_frmivalenum {
	__u32			index;		/* Frame format index */
	__u32			pixel_format;	/* Pixel format */
	__u32			width;		/* Frame width */
	__u32			height;		/* Frame height */
	__u32			type;		/* Frame interval type the device supports. */

	union {					/* Frame interval */
		struct v4l2_fract		discrete;
		struct v4l2_frmival_stepwise	stepwise;
	};

	__u32	reserved[2];			/* Reserved space for future use */
};

/*
 *	T I M E C O D E
 */
struct v4l2_timecode {
	__u32	type;
	__u32	flags;
	__u8	frames;
	__u8	seconds;
	__u8	minutes;
	__u8	hours;
	__u8	userbits[4];
};

/*  Type  */
#define V4L2_TC_TYPE_24FPS		1
#define V4L2_TC_TYPE_25FPS		2
#define V4L2_TC_TYPE_30FPS		3
#define V4L2_TC_TYPE_50FPS		4
#define V4L2_TC_TYPE_60FPS		5

/*  Flags  */
#define V4L2_TC_FLAG_DROPFRAME		0x0001 /* "drop-frame" mode */
#define V4L2_TC_FLAG_COLORFRAME		0x0002
#define V4L2_TC_USERBITS_field		0x000C
#define V4L2_TC_USERBITS_USERDEFINED	0x0000
#define V4L2_TC_USERBITS_8BITCHARS	0x0008
/* The above is based on SMPTE timecodes */

struct v4l2_jpegcompression {
	int quality;

	int  APPn;              /* Number of APP segment to be written,
				 * must be 0..15 */
	int  APP_len;           /* Length of data in JPEG APPn segment */
	char APP_data[60];      /* Data in the JPEG APPn segment. */

	int  COM_len;           /* Length of data in JPEG COM segment */
	char COM_data[60];      /* Data in JPEG COM segment */

	__u32 jpeg_markers;     /* Which markers should go into the JPEG
				 * output. Unless you exactly know what
				 * you do, leave them untouched.
				 * Including less markers will make the
				 * resulting code smaller, but there will
				 * be fewer applications which can read it.
				 * The presence of the APP and COM marker
				 * is influenced by APP_len and COM_len
				 * ONLY, not by this property! */

#define V4L2_JPEG_MARKER_DHT (1<<3)    /* Define Huffman Tables */
#define V4L2_JPEG_MARKER_DQT (1<<4)    /* Define Quantization Tables */
#define V4L2_JPEG_MARKER_DRI (1<<5)    /* Define Restart Interval */
#define V4L2_JPEG_MARKER_COM (1<<6)    /* Comment segment */
#define V4L2_JPEG_MARKER_APP (1<<7)    /* App segment, driver will
					* always use APP0 */
};

/*
 *	M E M O R Y - M A P P I N G   B U F F E R S
 */
struct v4l2_requestbuffers {
	__u32			count;
	__u32			type;		/* enum v4l2_buf_type */
	__u32			memory;		/* enum v4l2_memory */
	__u32			capabilities;
	__u32			reserved[1];
};

/* capabilities for struct v4l2_requestbuffers and v4l2_create_buffers */
#define V4L2_BUF_CAP_SUPPORTS_MMAP	(1 << 0)
#define V4L2_BUF_CAP_SUPPORTS_USERPTR	(1 << 1)
#define V4L2_BUF_CAP_SUPPORTS_DMABUF	(1 << 2)
#define V4L2_BUF_CAP_SUPPORTS_REQUESTS	(1 << 3)
#define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)

/**
 * struct v4l2_plane - plane info for multi-planar buffers
 * @bytesused:		number of bytes occupied by data in the plane (payload)
 * @length:		size of this plane (NOT the payload) in bytes
 * @mem_offset:		when memory in the associated struct v4l2_buffer is
 *			V4L2_MEMORY_MMAP, equals the offset from the start of
 *			the device memory for this plane (or is a "cookie" that
 *			should be passed to mmap() called on the video node)
 * @userptr:		when memory is V4L2_MEMORY_USERPTR, a userspace pointer
 *			pointing to this plane
 * @fd:			when memory is V4L2_MEMORY_DMABUF, a userspace file
 *			descriptor associated with this plane
 * @data_offset:	offset in the plane to the start of data; usually 0,
 *			unless there is a header in front of the data
 *
 * Multi-planar buffers consist of one or more planes, e.g. an YCbCr buffer
 * with two planes can have one plane for Y, and another for interleaved CbCr
 * components. Each plane can reside in a separate memory buffer, or even in
 * a completely separate memory node (e.g. in embedded devices).
 */
struct v4l2_plane {
	__u32			bytesused;
	__u32			length;
	union {
		__u32		mem_offset;
		unsigned long	userptr;
		__s32		fd;
	} m;
	__u32			data_offset;
	__u32			reserved[11];
};

/**
 * struct v4l2_buffer - video buffer info
 * @index:	id number of the buffer
 * @type:	enum v4l2_buf_type; buffer type (type == *_MPLANE for
 *		multiplanar buffers);
 * @bytesused:	number of bytes occupied by data in the buffer (payload);
 *		unused (set to 0) for multiplanar buffers
 * @flags:	buffer informational flags
 * @field:	enum v4l2_field; field order of the image in the buffer
 * @timestamp:	frame timestamp
 * @timecode:	frame timecode
 * @sequence:	sequence count of this frame
 * @memory:	enum v4l2_memory; the method, in which the actual video data is
 *		passed
 * @offset:	for non-multiplanar buffers with memory == V4L2_MEMORY_MMAP;
 *		offset from the start of the device memory for this plane,
 *		(or a "cookie" that should be passed to mmap() as offset)
 * @userptr:	for non-multiplanar buffers with memory == V4L2_MEMORY_USERPTR;
 *		a userspace pointer pointing to this buffer
 * @fd:		for non-multiplanar buffers with memory == V4L2_MEMORY_DMABUF;
 *		a userspace file descriptor associated with this buffer
 * @planes:	for multiplanar buffers; userspace pointer to the array of plane
 *		info structs for this buffer
 * @length:	size in bytes of the buffer (NOT its payload) for single-plane
 *		buffers (when type != *_MPLANE); number of elements in the
 *		planes array for multi-plane buffers
 * @request_fd: fd of the request that this buffer should use
 *
 * Contains data exchanged by application and driver using one of the Streaming
 * I/O methods.
 */
struct v4l2_buffer {
	__u32			index;
	__u32			type;
	__u32			bytesused;
	__u32			flags;
	__u32			field;
	struct timeval		timestamp;
	struct v4l2_timecode	timecode;
	__u32			sequence;

	/* memory location */
	__u32			memory;
	union {
		__u32           offset;
		unsigned long   userptr;
		struct v4l2_plane *planes;
		__s32		fd;
	} m;
	__u32			length;
	__u32			reserved2;
	union {
		__s32		request_fd;
		__u32		reserved;
	};
};

/**
 * v4l2_timeval_to_ns - Convert timeval to nanoseconds
 * @ts:		pointer to the timeval variable to be converted
 *
 * Returns the scalar nanosecond representation of the timeval
 * parameter.
 */
static __inline__ __u64 v4l2_timeval_to_ns(const struct timeval *tv)
{
	return (__u64)tv->tv_sec * 1000000000ULL + tv->tv_usec * 1000;
}

/*  Flags for 'flags' field */
/* Buffer is mapped (flag) */
#define V4L2_BUF_FLAG_MAPPED			0x00000001
/* Buffer is queued for processing */
#define V4L2_BUF_FLAG_QUEUED			0x00000002
/* Buffer is ready */
#define V4L2_BUF_FLAG_DONE			0x00000004
/* Image is a keyframe (I-frame) */
#define V4L2_BUF_FLAG_KEYFRAME			0x00000008
/* Image is a P-frame */
#define V4L2_BUF_FLAG_PFRAME			0x00000010
/* Image is a B-frame */
#define V4L2_BUF_FLAG_BFRAME			0x00000020
/* Buffer is ready, but the data contained within is corrupted. */
#define V4L2_BUF_FLAG_ERROR			0x00000040
/* Buffer is added to an unqueued request */
#define V4L2_BUF_FLAG_IN_REQUEST		0x00000080
/* timecode field is valid */
#define V4L2_BUF_FLAG_TIMECODE			0x00000100
/* Buffer is prepared for queuing */
#define V4L2_BUF_FLAG_PREPARED			0x00000400
/* Cache handling flags */
#define V4L2_BUF_FLAG_NO_CACHE_INVALIDATE	0x00000800
#define V4L2_BUF_FLAG_NO_CACHE_CLEAN		0x00001000
/* Timestamp type */
#define V4L2_BUF_FLAG_TIMESTAMP_MASK		0x0000e000
#define V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN		0x00000000
#define V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC	0x00002000
#define V4L2_BUF_FLAG_TIMESTAMP_COPY		0x00004000
/* Timestamp sources. */
#define V4L2_BUF_FLAG_TSTAMP_SRC_MASK		0x00070000
#define V4L2_BUF_FLAG_TSTAMP_SRC_EOF		0x00000000
#define V4L2_BUF_FLAG_TSTAMP_SRC_SOE		0x00010000
/* mem2mem encoder/decoder */
#define V4L2_BUF_FLAG_LAST			0x00100000
/* request_fd is valid */
#define V4L2_BUF_FLAG_REQUEST_FD		0x00800000

/**
 * struct v4l2_exportbuffer - export of video buffer as DMABUF file descriptor
 *
 * @index:	id number of the buffer
 * @type:	enum v4l2_buf_type; buffer type (type == *_MPLANE for
 *		multiplanar buffers);
 * @plane:	index of the plane to be exported, 0 for single plane queues
 * @flags:	flags for newly created file, currently only O_CLOEXEC is
 *		supported, refer to manual of open syscall for more details
 * @fd:		file descriptor associated with DMABUF (set by driver)
 *
 * Contains data used for exporting a video buffer as DMABUF file descriptor.
 * The buffer is identified by a 'cookie' returned by VIDIOC_QUERYBUF
 * (identical to the cookie used to mmap() the buffer to userspace). All
 * reserved fields must be set to zero. The field reserved0 is expected to
 * become a structure 'type' allowing an alternative layout of the structure
 * content. Therefore this field should not be used for any other extensions.
 */
struct v4l2_exportbuffer {
	__u32		type; /* enum v4l2_buf_type */
	__u32		index;
	__u32		plane;
	__u32		flags;
	__s32		fd;
	__u32		reserved[11];
};

/*
 *	O V E R L A Y   P R E V I E W
 */
struct v4l2_framebuffer {
	__u32			capability;
	__u32			flags;
/* FIXME: in theory we should pass something like PCI device + memory
 * region + offset instead of some physical address */
	void                    *base;
	struct {
		__u32		width;
		__u32		height;
		__u32		pixelformat;
		__u32		field;		/* enum v4l2_field */
		__u32		bytesperline;	/* for padding, zero if unused */
		__u32		sizeimage;
		__u32		colorspace;	/* enum v4l2_colorspace */
		__u32		priv;		/* reserved field, set to 0 */
	} fmt;
};
/*  Flags for the 'capability' field. Read only */
#define V4L2_FBUF_CAP_EXTERNOVERLAY	0x0001
#define V4L2_FBUF_CAP_CHROMAKEY		0x0002
#define V4L2_FBUF_CAP_LIST_CLIPPING     0x0004
#define V4L2_FBUF_CAP_BITMAP_CLIPPING	0x0008
#define V4L2_FBUF_CAP_LOCAL_ALPHA	0x0010
#define V4L2_FBUF_CAP_GLOBAL_ALPHA	0x0020
#define V4L2_FBUF_CAP_LOCAL_INV_ALPHA	0x0040
#define V4L2_FBUF_CAP_SRC_CHROMAKEY	0x0080
/*  Flags for the 'flags' field. */
#define V4L2_FBUF_FLAG_PRIMARY		0x0001
#define V4L2_FBUF_FLAG_OVERLAY		0x0002
#define V4L2_FBUF_FLAG_CHROMAKEY	0x0004
#define V4L2_FBUF_FLAG_LOCAL_ALPHA	0x0008
#define V4L2_FBUF_FLAG_GLOBAL_ALPHA	0x0010
#define V4L2_FBUF_FLAG_LOCAL_INV_ALPHA	0x0020
#define V4L2_FBUF_FLAG_SRC_CHROMAKEY	0x0040

struct v4l2_clip {
	struct v4l2_rect        c;
	struct v4l2_clip	*next;
};

struct v4l2_window {
	struct v4l2_rect        w;
	__u32			field;	 /* enum v4l2_field */
	__u32			chromakey;
	struct v4l2_clip	*clips;
	__u32			clipcount;
	void			*bitmap;
	__u8                    global_alpha;
};

/*
 *	C A P T U R E   P A R A M E T E R S
 */
struct v4l2_captureparm {
	__u32		   capability;	  /*  Supported modes */
	__u32		   capturemode;	  /*  Current mode */
	struct v4l2_fract  timeperframe;  /*  Time per frame in seconds */
	__u32		   extendedmode;  /*  Driver-specific extensions */
	__u32              readbuffers;   /*  # of buffers for read */
	__u32		   reserved[4];
};

/*  Flags for 'capability' and 'capturemode' fields */
#define V4L2_MODE_HIGHQUALITY	0x0001	/*  High quality imaging mode */
#define V4L2_CAP_TIMEPERFRAME	0x1000	/*  timeperframe field is supported */

struct v4l2_outputparm {
	__u32		   capability;	 /*  Supported modes */
	__u32		   outputmode;	 /*  Current mode */
	struct v4l2_fract  timeperframe; /*  Time per frame in seconds */
	__u32		   extendedmode; /*  Driver-specific extensions */
	__u32              writebuffers; /*  # of buffers for write */
	__u32		   reserved[4];
};

/*
 *	I N P U T   I M A G E   C R O P P I N G
 */
struct v4l2_cropcap {
	__u32			type;	/* enum v4l2_buf_type */
	struct v4l2_rect        bounds;
	struct v4l2_rect        defrect;
	struct v4l2_fract       pixelaspect;
};
Mode	Name	Size
-rw-r--r--	ipa_interface_test.cpp	4565	log plain
-rw-r--r--	ipa_module_test.cpp	1668	log plain
d---------	libipa	83	log plain
-rw-r--r--	meson.build	551	log plain
d---------	rkisp1	83	log plain