libcamera v0.0.0+3423-a7ab5ef1
Supporting cameras in Linux since 2019
v4l2_pixelformat.h
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1/* SPDX-License-Identifier: LGPL-2.1-or-later */
2/*
3 * Copyright (C) 2019, Google Inc.
4 * Copyright (C) 2020, Raspberry Pi (Trading) Ltd.
5 *
6 * v4l2_pixelformat.h - V4L2 Pixel Format
7 */
8
9#pragma once
10
11#include <stdint.h>
12#include <string>
13
14#include <linux/videodev2.h>
15
17
18namespace libcamera {
19
21{
22public:
23 struct Info {
25 const char *description;
26 };
27
29 : fourcc_(0)
30 {
31 }
32
33 explicit V4L2PixelFormat(uint32_t fourcc)
34 : fourcc_(fourcc)
35 {
36 }
37
38 bool isValid() const { return fourcc_ != 0; }
39 uint32_t fourcc() const { return fourcc_; }
40 operator uint32_t() const { return fourcc_; }
41
42 std::string toString() const;
43 const char *description() const;
44
46 static V4L2PixelFormat fromPixelFormat(const PixelFormat &pixelFormat,
47 bool multiplanar = false);
48
49private:
50 uint32_t fourcc_;
51};
52
53} /* namespace libcamera */
libcamera image pixel format
Definition: pixel_format.h:17
V4L2 pixel format FourCC wrapper.
Definition: v4l2_pixelformat.h:21
std::string toString() const
Assemble and return a string describing the pixel format.
Definition: v4l2_pixelformat.cpp:236
static V4L2PixelFormat fromPixelFormat(const PixelFormat &pixelFormat, bool multiplanar=false)
Convert pixelFormat to its corresponding V4L2PixelFormat.
Definition: v4l2_pixelformat.cpp:309
V4L2PixelFormat(uint32_t fourcc)
Construct a V4L2PixelFormat from a FourCC value.
Definition: v4l2_pixelformat.h:33
uint32_t fourcc() const
Retrieve the pixel format FourCC numerical value.
Definition: v4l2_pixelformat.h:39
const char * description() const
Retrieve the V4L2 description for the format.
Definition: v4l2_pixelformat.cpp:266
PixelFormat toPixelFormat() const
Convert the V4L2 pixel format to the corresponding PixelFormat.
Definition: v4l2_pixelformat.cpp:283
V4L2PixelFormat()
Construct a V4L2PixelFormat with an invalid format.
Definition: v4l2_pixelformat.h:28
bool isValid() const
Check if the pixel format is valid.
Definition: v4l2_pixelformat.h:38
Top-level libcamera namespace.
Definition: backtrace.h:17
libcamera pixel format
Information about a V4L2 pixel format.
Definition: v4l2_pixelformat.h:23
const char * description
The human-readable description of the V4L2 pixel format.
Definition: v4l2_pixelformat.h:25
PixelFormat format
The corresponding libcamera PixelFormat.
Definition: v4l2_pixelformat.h:24