v4l2_pixelformat.h
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Google Inc.
* Copyright (C) 2020, Raspberry Pi (Trading) Ltd.
*
* v4l2_pixelformat.h - V4L2 Pixel Format
*/
#ifndef __LIBCAMERA_INTERNAL_V4L2_PIXELFORMAT_H__
#define __LIBCAMERA_INTERNAL_V4L2_PIXELFORMAT_H__
#include <stdint.h>
#include <string>
#include <linux/videodev2.h>
#include <libcamera/pixel_format.h>
namespace libcamera {
class V4L2PixelFormat
{
public:
V4L2PixelFormat()
: fourcc_(0)
{
}
explicit V4L2PixelFormat(uint32_t fourcc)
: fourcc_(fourcc)
{
}
bool isValid() const { return fourcc_ != 0; }
uint32_t fourcc() const { return fourcc_; }
operator uint32_t() const { return fourcc_; }
std::string toString() const;
PixelFormat toPixelFormat() const;
static V4L2PixelFormat fromPixelFormat(const PixelFormat &pixelFormat,
bool multiplanar);
private:
uint32_t fourcc_;
};
} /* namespace libcamera */
#endif /* __LIBCAMERA_INTERNAL_V4L2_PIXELFORMAT_H__ */
libcamera::PixelFormat
libcamera image pixel format
Definition: pixel_format.h:17
libcamera::V4L2PixelFormat
V4L2 pixel format FourCC wrapper.
Definition: v4l2_pixelformat.h:21
libcamera::V4L2PixelFormat::toString
std::string toString() const
Assemble and return a string describing the pixel format.
Definition: v4l2_pixelformat.cpp:141
libcamera::V4L2PixelFormat::fromPixelFormat
static V4L2PixelFormat fromPixelFormat(const PixelFormat &pixelFormat, bool multiplanar)
Convert pixelFormat to its corresponding V4L2PixelFormat.
Definition: v4l2_pixelformat.cpp:192
libcamera::V4L2PixelFormat::V4L2PixelFormat
V4L2PixelFormat(uint32_t fourcc)
Construct a V4L2PixelFormat from a FourCC value.
Definition: v4l2_pixelformat.h:28
libcamera::V4L2PixelFormat::fourcc
uint32_t fourcc() const
Retrieve the pixel format FourCC numerical value.
Definition: v4l2_pixelformat.h:34
libcamera::V4L2PixelFormat::toPixelFormat
PixelFormat toPixelFormat() const
Convert the V4L2 pixel format to the corresponding PixelFormat.
Definition: v4l2_pixelformat.cpp:166
libcamera::V4L2PixelFormat::V4L2PixelFormat
V4L2PixelFormat()
Construct a V4L2PixelFormat with an invalid format.
Definition: v4l2_pixelformat.h:23
libcamera::V4L2PixelFormat::isValid
bool isValid() const
Check if the pixel format is valid.
Definition: v4l2_pixelformat.h:33
pixel_format.h
libcamera pixel format