libcamera: include/libcamera/internal/bayer_format.h Source File

libcamera v0.0.4 Supporting cameras in Linux since 2019

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bayer_format.h
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1/* SPDX-License-Identifier: LGPL-2.1-or-later */
2/*
3 * Copyright (C) 2020, Raspberry Pi Ltd
4 *
5 * bayer_format.h - Bayer Pixel Format
6 */
7
8#pragma once
9
10#include <ostream>
11#include <stdint.h>
12#include <string>
13
14#include <libcamera/pixel_format.h>
15
16#include "libcamera/internal/v4l2_pixelformat.h"
17
18namespace libcamera {
19
20enum class Transform;
21
22 class BayerFormat
23{
24public:
25 enum Order : uint8_t {
26 BGGR = 0,
27 GBRG = 1,
28 GRBG = 2,
29 RGGB = 3,
30 MONO = 4
31 };
32
33 enum class Packing : uint16_t {
34 None = 0,
35 CSI2 = 1,
36 IPU3 = 2,
37 };
38
39 constexpr BayerFormat()
40 : order(Order::BGGR), bitDepth(0), packing(Packing::None)
41 {
42 }
43
44 constexpr BayerFormat(Order o, uint8_t b, Packing p)
45 : order(o), bitDepth(b), packing(p)
46 {
47 }
48
49 static const BayerFormat &fromMbusCode(unsigned int mbusCode);
50 bool isValid() const { return bitDepth != 0; }
51
52 std::string toString() const;
53
54 V4L2PixelFormat toV4L2PixelFormat() const;
55 static BayerFormat fromV4L2PixelFormat(V4L2PixelFormat v4l2Format);
56 PixelFormat toPixelFormat() const;
57 static BayerFormat fromPixelFormat(PixelFormat format);
58 BayerFormat transform(Transform t) const;
59
60 Order order;
61 uint8_t bitDepth;
62
63 Packing packing;
64};
65
66bool operator==(const BayerFormat &lhs, const BayerFormat &rhs);
67static inline bool operator!=(const BayerFormat &lhs, const BayerFormat &rhs)
68{
69 return !(lhs == rhs);
70}
71
72std::ostream &operator<<(std::ostream &out, const BayerFormat &f);
73
74} /* namespace libcamera */
libcamera::BayerFormat
Class to represent a raw image Bayer format.
Definition: bayer_format.h:23
libcamera::BayerFormat::fromV4L2PixelFormat
static BayerFormat fromV4L2PixelFormat(V4L2PixelFormat v4l2Format)
Convert v4l2Format to the corresponding BayerFormat.
Definition: bayer_format.cpp:314
libcamera::BayerFormat::BayerFormat
constexpr BayerFormat()
Construct an empty (and invalid) BayerFormat.
Definition: bayer_format.h:39
libcamera::BayerFormat::Packing
Packing
Different types of packing that can be applied to a BayerFormat.
Definition: bayer_format.h:33
libcamera::BayerFormat::Packing::CSI2
@ CSI2
Format uses MIPI CSI-2 style packing.
libcamera::BayerFormat::Packing::None
@ None
No packing.
libcamera::BayerFormat::Packing::IPU3
@ IPU3
Format uses IPU3 style packing.
libcamera::BayerFormat::bitDepth
uint8_t bitDepth
The bit depth of the samples in the Bayer pattern.
Definition: bayer_format.h:61
libcamera::BayerFormat::Order
Order
The order of the colour channels in the Bayer pattern.
Definition: bayer_format.h:25
libcamera::BayerFormat::GBRG
@ GBRG
G then B on the first row, R then G on the second row.
Definition: bayer_format.h:27
libcamera::BayerFormat::GRBG
@ GRBG
G then R on the first row, B then G on the second row.
Definition: bayer_format.h:28
libcamera::BayerFormat::RGGB
@ RGGB
R then G on the first row, G then B on the second row.
Definition: bayer_format.h:29
libcamera::BayerFormat::MONO
@ MONO
Monochrome image data, there is no colour filter array.
Definition: bayer_format.h:30
libcamera::BayerFormat::BGGR
@ BGGR
B then G on the first row, G then R on the second row.
Definition: bayer_format.h:26
libcamera::BayerFormat::packing
Packing packing
Any packing scheme applied to this BayerFormat.
Definition: bayer_format.h:63
libcamera::BayerFormat::toV4L2PixelFormat
V4L2PixelFormat toV4L2PixelFormat() const
Convert a BayerFormat into the corresponding V4L2PixelFormat.
Definition: bayer_format.cpp:300
libcamera::BayerFormat::fromMbusCode
static const BayerFormat & fromMbusCode(unsigned int mbusCode)
Retrieve the BayerFormat associated with a media bus code.
Definition: bayer_format.cpp:218
libcamera::BayerFormat::toPixelFormat
PixelFormat toPixelFormat() const
Convert a BayerFormat into the corresponding PixelFormat.
Definition: bayer_format.cpp:330
libcamera::BayerFormat::order
Order order
The order of the colour channels in the Bayer pattern.
Definition: bayer_format.h:60
libcamera::BayerFormat::toString
std::string toString() const
Assemble and return a readable string representation of the BayerFormat.
Definition: bayer_format.cpp:239
libcamera::BayerFormat::transform
BayerFormat transform(Transform t) const
Apply a transform to this BayerFormat.
Definition: bayer_format.cpp:372
libcamera::BayerFormat::fromPixelFormat
static BayerFormat fromPixelFormat(PixelFormat format)
Convert a PixelFormat into the corresponding BayerFormat.
Definition: bayer_format.cpp:343
libcamera::BayerFormat::BayerFormat
constexpr BayerFormat(Order o, uint8_t b, Packing p)
Construct a BayerFormat from explicit values.
Definition: bayer_format.h:44
libcamera::BayerFormat::isValid
bool isValid() const
Return whether a BayerFormat is valid.
Definition: bayer_format.h:50
libcamera::PixelFormat
libcamera image pixel format
Definition: pixel_format.h:18
libcamera::V4L2PixelFormat
V4L2 pixel format FourCC wrapper.
Definition: v4l2_pixelformat.h:24
libcamera
Top-level libcamera namespace.
Definition: backtrace.h:17
libcamera::Transform
Transform
Enum to represent a 2D plane transform.
Definition: transform.h:14
libcamera::operator<<
std::ostream & operator<<(std::ostream &out, const Point &p)
Insert a text representation of a Point into an output stream.
Definition: geometry.cpp:91
libcamera::operator==
bool operator==(const ColorSpace &lhs, const ColorSpace &rhs)
Compare color spaces for equality.
Definition: color_space.cpp:506
pixel_format.h
libcamera pixel format
v4l2_pixelformat.h
V4L2 Pixel Format.