libcamera/pinchartl/libcamera.git - Laurent Pinchart's clone of libcamera

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Diffstat (limited to 'src/py/cam/cam_null.py')

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/* SPDX-License-Identifier: LGPL-2.1-or-later */ /* * Copyright (C) 2020, Raspberry Pi (Trading) Limited * * bayer_format.cpp - Class to represent Bayer formats */ #include "libcamera/internal/bayer_format.h" #include <algorithm> #include <map> #include <sstream> #include <unordered_map> #include <linux/media-bus-format.h> #include <libcamera/formats.h> #include <libcamera/transform.h> /** * \file bayer_format.h * \brief Class to represent Bayer formats and manipulate them */ namespace libcamera { /** * \class BayerFormat * \brief Class to represent a raw image Bayer format * * This class encodes the different Bayer formats in such a way that they can * be easily manipulated. For example, the bit depth or Bayer order can be * easily altered - the Bayer order can even be "transformed" in the same * manner as happens in many sensors when their horizontal or vertical "flip" * controls are set. */ /** * \enum BayerFormat::Order * \brief The order of the colour channels in the Bayer pattern * * \var BayerFormat::BGGR * \brief B then G on the first row, G then R on the second row. * \var BayerFormat::GBRG * \brief G then B on the first row, R then G on the second row. * \var BayerFormat::GRBG * \brief G then R on the first row, B then G on the second row. * \var BayerFormat::RGGB * \brief R then G on the first row, G then B on the second row. * \var BayerFormat::MONO * \brief Monochrome image data, there is no colour filter array. */ /** * \enum BayerFormat::Packing * \brief Different types of packing that can be applied to a BayerFormat * * \var BayerFormat::Packing::None * \brief No packing * \var BayerFormat::Packing::CSI2 * \brief Format uses MIPI CSI-2 style packing * \var BayerFormat::Packing::IPU3 * \brief Format uses IPU3 style packing */ namespace { /* Define a slightly arbitrary ordering so that we can use a std::map. */ struct BayerFormatComparator { constexpr bool operator()(const BayerFormat &lhs, const BayerFormat &rhs) const { if (lhs.bitDepth < rhs.bitDepth) return true; else if (lhs.bitDepth > rhs.bitDepth) return false; if (lhs.order < rhs.order) return true; else if (lhs.order > rhs.order) return false; if (lhs.packing < rhs.packing) return true; else return false; } }; struct Formats { PixelFormat pixelFormat; V4L2PixelFormat v4l2Format; }; const std::map<BayerFormat, Formats, BayerFormatComparator> bayerToFormat{ { { BayerFormat::BGGR, 8, BayerFormat::Packing::None }, { formats::SBGGR8, V4L2PixelFormat(V4L2_PIX_FMT_SBGGR8) } }, { { BayerFormat::GBRG, 8, BayerFormat::Packing::None }, { formats::SGBRG8, V4L2PixelFormat(V4L2_PIX_FMT_SGBRG8) } }, { { BayerFormat::GRBG, 8, BayerFormat::Packing::None }, { formats::SGRBG8, V4L2PixelFormat(V4L2_PIX_FMT_SGRBG8) } }, { { BayerFormat::RGGB, 8, BayerFormat::Packing::None }, { formats::SRGGB8, V4L2PixelFormat(V4L2_PIX_FMT_SRGGB8) } }, { { BayerFormat::BGGR, 10, BayerFormat::Packing::None }, { formats::SBGGR10, V4L2PixelFormat(V4L2_PIX_FMT_SBGGR10) } }, { { BayerFormat::GBRG, 10, BayerFormat::Packing::None }, { formats::SGBRG10, V4L2PixelFormat(V4L2_PIX_FMT_SGBRG10) } }, { { BayerFormat::GRBG, 10, BayerFormat::Packing::None }, { formats::SGRBG10, V4L2PixelFormat(V4L2_PIX_FMT_SGRBG10) } }, { { BayerFormat::RGGB, 10, BayerFormat::Packing::None }, { formats::SRGGB10, V4L2PixelFormat(V4L2_PIX_FMT_SRGGB10) } }, { { BayerFormat::BGGR, 10, BayerFormat::Packing::CSI2 }, { formats::SBGGR10_CSI2P, V4L2PixelFormat(V4L2_PIX_FMT_SBGGR10P) } }, { { BayerFormat::GBRG, 10, BayerFormat::Packing::CSI2 }, { formats::SGBRG10_CSI2P, V4L2PixelFormat(V4L2_PIX_FMT_SGBRG10P) } }, { { BayerFormat::GRBG, 10, BayerFormat::Packing::CSI2 }, { formats::SGRBG10_CSI2P, V4L2PixelFormat(V4L2_PIX_FMT_SGRBG10P) } }, { { BayerFormat::RGGB, 10, BayerFormat::Packing::CSI2 }, { formats::SRGGB10_CSI2P, V4L2PixelFormat(V4L2_PIX_FMT_SRGGB10P) } }, { { BayerFormat::BGGR, 10, BayerFormat::Packing::IPU3 }, { formats::SBGGR10_IPU3, V4L2PixelFormat(V4L2_PIX_FMT_IPU3_SBGGR10) } }, { { BayerFormat::GBRG, 10, BayerFormat::Packing::IPU3 }, { formats::SGBRG10_IPU3, V4L2PixelFormat(V4L2_PIX_FMT_IPU3_SGBRG10) } }, { { BayerFormat::GRBG, 10, BayerFormat::Packing::IPU3 }, { formats::SGRBG10_IPU3, V4L2PixelFormat(V4L2_PIX_FMT_IPU3_SGRBG10) } }, { { BayerFormat::RGGB, 10, BayerFormat::Packing::IPU3 }, { formats::SRGGB10_IPU3, V4L2PixelFormat(V4L2_PIX_FMT_IPU3_SRGGB10) } }, { { BayerFormat::BGGR, 12, BayerFormat::Packing::None }, { formats::SBGGR12, V4L2PixelFormat(V4L2_PIX_FMT_SBGGR12) } }, { { BayerFormat::GBRG, 12, BayerFormat::Packing::None }, { formats::SGBRG12, V4L2PixelFormat(V4L2_PIX_FMT_SGBRG12) } }, { { BayerFormat::GRBG, 12, BayerFormat::Packing::None }, { formats::SGRBG12, V4L2PixelFormat(V4L2_PIX_FMT_SGRBG12) } }, { { BayerFormat::RGGB, 12, BayerFormat::Packing::None }, { formats::SRGGB12, V4L2PixelFormat(V4L2_PIX_FMT_SRGGB12) } }, { { BayerFormat::BGGR, 12, BayerFormat::Packing::CSI2 }, { formats::SBGGR12_CSI2P, V4L2PixelFormat(V4L2_PIX_FMT_SBGGR12P) } }, { { BayerFormat::GBRG, 12, BayerFormat::Packing::CSI2 }, { formats::SGBRG12_CSI2P, V4L2PixelFormat(V4L2_PIX_FMT_SGBRG12P) } }, { { BayerFormat::GRBG, 12, BayerFormat::Packing::CSI2 }, { formats::SGRBG12_CSI2P, V4L2PixelFormat(V4L2_PIX_FMT_SGRBG12P) } }, { { BayerFormat::RGGB, 12, BayerFormat::Packing::CSI2 }, { formats::SRGGB12_CSI2P, V4L2PixelFormat(V4L2_PIX_FMT_SRGGB12P) } }, { { BayerFormat::BGGR, 16, BayerFormat::Packing::None }, { formats::SBGGR16, V4L2PixelFormat(V4L2_PIX_FMT_SBGGR16) } }, { { BayerFormat::GBRG, 16, BayerFormat::Packing::None }, { formats::SGBRG16, V4L2PixelFormat(V4L2_PIX_FMT_SGBRG16) } }, { { BayerFormat::GRBG, 16, BayerFormat::Packing::None }, { formats::SGRBG16, V4L2PixelFormat(V4L2_PIX_FMT_SGRBG16) } }, { { BayerFormat::RGGB, 16, BayerFormat::Packing::None }, { formats::SRGGB16, V4L2PixelFormat(V4L2_PIX_FMT_SRGGB16) } }, { { BayerFormat::MONO, 8, BayerFormat::Packing::None }, { formats::R8, V4L2PixelFormat(V4L2_PIX_FMT_GREY) } }, { { BayerFormat::MONO, 10, BayerFormat::Packing::None }, { formats::R10, V4L2PixelFormat(V4L2_PIX_FMT_Y10) } }, { { BayerFormat::MONO, 10, BayerFormat::Packing::CSI2 }, { formats::R10_CSI2P, V4L2PixelFormat(V4L2_PIX_FMT_Y10P) } }, }; const std::unordered_map<unsigned int, BayerFormat> mbusCodeToBayer{ { MEDIA_BUS_FMT_SBGGR8_1X8, { BayerFormat::BGGR, 8, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SGBRG8_1X8, { BayerFormat::GBRG, 8, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SGRBG8_1X8, { BayerFormat::GRBG, 8, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SRGGB8_1X8, { BayerFormat::RGGB, 8, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SBGGR10_ALAW8_1X8, { BayerFormat::BGGR, 8, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SGBRG10_ALAW8_1X8, { BayerFormat::GBRG, 8, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SGRBG10_ALAW8_1X8, { BayerFormat::GRBG, 8, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SRGGB10_ALAW8_1X8, { BayerFormat::RGGB, 8, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8, { BayerFormat::BGGR, 8, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8, { BayerFormat::GBRG, 8, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8, { BayerFormat::GRBG, 8, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8, { BayerFormat::RGGB, 8, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_BE, { BayerFormat::BGGR, 10, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, { BayerFormat::BGGR, 10, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_BE, { BayerFormat::BGGR, 10, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_LE, { BayerFormat::BGGR, 10, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SBGGR10_1X10, { BayerFormat::BGGR, 10, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SGBRG10_1X10, { BayerFormat::GBRG, 10, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SGRBG10_1X10, { BayerFormat::GRBG, 10, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SRGGB10_1X10, { BayerFormat::RGGB, 10, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SBGGR12_1X12, { BayerFormat::BGGR, 12, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SGBRG12_1X12, { BayerFormat::GBRG, 12, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SGRBG12_1X12, { BayerFormat::GRBG, 12, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SRGGB12_1X12, { BayerFormat::RGGB, 12, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SBGGR14_1X14, { BayerFormat::BGGR, 14, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SGBRG14_1X14, { BayerFormat::GBRG, 14, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SGRBG14_1X14, { BayerFormat::GRBG, 14, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SRGGB14_1X14, { BayerFormat::RGGB, 14, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SBGGR16_1X16, { BayerFormat::BGGR, 16, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SGBRG16_1X16, { BayerFormat::GBRG, 16, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SGRBG16_1X16, { BayerFormat::GRBG, 16, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_SRGGB16_1X16, { BayerFormat::RGGB, 16, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_Y8_1X8, { BayerFormat::MONO, 8, BayerFormat::Packing::None } }, { MEDIA_BUS_FMT_Y10_1X10, { BayerFormat::MONO, 10, BayerFormat::Packing::None } }, }; } /* namespace */ /** * \fn BayerFormat::BayerFormat() * \brief Construct an empty (and invalid) BayerFormat */ /** * \fn BayerFormat::BayerFormat(Order o, uint8_t b, Packing p) * \brief Construct a BayerFormat from explicit values * \param[in] o The order of the Bayer pattern * \param[in] b The bit depth of the Bayer samples * \param[in] p The type of packing applied to the pixel values */ /** * \brief Retrieve the BayerFormat associated with a media bus code * \param[in] mbusCode The media bus code to convert into a BayerFormat * * The media bus code numeric identifiers are defined by the V4L2 specification. */ const BayerFormat &BayerFormat::fromMbusCode(unsigned int mbusCode) { static BayerFormat empty; const auto it = mbusCodeToBayer.find(mbusCode); if (it == mbusCodeToBayer.end()) return empty; else return it->second; } /** * \fn BayerFormat::isValid() * \brief Return whether a BayerFormat is valid */ /**


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