libcamera  v0.0.0
Supporting cameras in Linux since 2019
v4l2_pixelformat.h
Go to the documentation of this file.
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 #ifndef __LIBCAMERA_INTERNAL_V4L2_PIXELFORMAT_H__
9 #define __LIBCAMERA_INTERNAL_V4L2_PIXELFORMAT_H__
10 
11 #include <stdint.h>
12 #include <string>
13 
14 #include <linux/videodev2.h>
15 
16 #include <libcamera/pixel_format.h>
17 
18 namespace libcamera {
19 
21 {
22 public:
24  : fourcc_(0)
25  {
26  }
27 
28  explicit V4L2PixelFormat(uint32_t fourcc)
29  : fourcc_(fourcc)
30  {
31  }
32 
33  bool isValid() const { return fourcc_ != 0; }
34  uint32_t fourcc() const { return fourcc_; }
35  operator uint32_t() const { return fourcc_; }
36 
37  std::string toString() const;
38 
39  PixelFormat toPixelFormat() const;
40  static V4L2PixelFormat fromPixelFormat(const PixelFormat &pixelFormat,
41  bool multiplanar);
42 
43 private:
44  uint32_t fourcc_;
45 };
46 
47 } /* namespace libcamera */
48 
49 #endif /* __LIBCAMERA_INTERNAL_V4L2_PIXELFORMAT_H__ */
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:141
static V4L2PixelFormat fromPixelFormat(const PixelFormat &pixelFormat, bool multiplanar)
Convert pixelFormat to its corresponding V4L2PixelFormat.
Definition: v4l2_pixelformat.cpp:192
V4L2PixelFormat(uint32_t fourcc)
Construct a V4L2PixelFormat from a FourCC value.
Definition: v4l2_pixelformat.h:28
uint32_t fourcc() const
Retrieve the pixel format FourCC numerical value.
Definition: v4l2_pixelformat.h:34
PixelFormat toPixelFormat() const
Convert the V4L2 pixel format to the corresponding PixelFormat.
Definition: v4l2_pixelformat.cpp:166
V4L2PixelFormat()
Construct a V4L2PixelFormat with an invalid format.
Definition: v4l2_pixelformat.h:23
bool isValid() const
Check if the pixel format is valid.
Definition: v4l2_pixelformat.h:33
libcamera pixel format