e83727a194
Add member functions to PixelFormatInfo for calculating stride and frame size. This will simplify existing code that calculates these things. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
78 lines
1.8 KiB
C++
78 lines
1.8 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* formats.h - libcamera image formats
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*/
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#ifndef __LIBCAMERA_INTERNAL_FORMATS_H__
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#define __LIBCAMERA_INTERNAL_FORMATS_H__
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#include <array>
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#include <map>
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#include <vector>
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#include <libcamera/geometry.h>
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#include <libcamera/pixel_format.h>
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#include "libcamera/internal/v4l2_pixelformat.h"
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namespace libcamera {
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class ImageFormats
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{
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public:
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int addFormat(unsigned int format, const std::vector<SizeRange> &sizes);
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bool isEmpty() const;
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std::vector<unsigned int> formats() const;
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const std::vector<SizeRange> &sizes(unsigned int format) const;
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const std::map<unsigned int, std::vector<SizeRange>> &data() const;
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private:
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std::map<unsigned int, std::vector<SizeRange>> data_;
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};
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struct PixelFormatPlaneInfo
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{
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unsigned int bytesPerGroup;
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unsigned int verticalSubSampling;
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};
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class PixelFormatInfo
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{
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public:
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enum ColourEncoding {
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ColourEncodingRGB,
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ColourEncodingYUV,
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ColourEncodingRAW,
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};
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bool isValid() const { return format.isValid(); }
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static const PixelFormatInfo &info(const PixelFormat &format);
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static const PixelFormatInfo &info(const V4L2PixelFormat &format);
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unsigned int stride(unsigned int width, unsigned int plane,
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unsigned int align = 1) const;
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unsigned int frameSize(const Size &size, unsigned int align = 1) const;
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unsigned int frameSize(const Size &size,
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const std::array<unsigned int, 3> &strides) const;
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/* \todo Add support for non-contiguous memory planes */
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const char *name;
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PixelFormat format;
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V4L2PixelFormat v4l2Format;
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unsigned int bitsPerPixel;
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enum ColourEncoding colourEncoding;
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bool packed;
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unsigned int pixelsPerGroup;
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std::array<PixelFormatPlaneInfo, 3> planes;
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};
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_INTERNAL_FORMATS_H__ */
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