From 1c0096d7517afca568e642dac6ffce894a5098fb Mon Sep 17 00:00:00 2001 From: Jacopo Mondi Date: Fri, 18 Dec 2020 15:51:39 +0100 Subject: libcamera: bayer_format: Add support for mbus codes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The existing implementation of the BayerFormat class supports converting a V4L2PixelFormat to a BayerFormat and vice-versa. Expand the class by adding support for converting a media bus code to a BayerFormat instance, by providing a conversion table and a dedicated static methods. Do not provide support for converting a BayerFormat to a media bus code as there's no 1-to-1 mapping between the two. Reviewed-by: Paul Elder Reviewed-by: Laurent Pinchart Reviewed-by: Niklas Söderlund Signed-off-by: Jacopo Mondi --- src/libcamera/bayer_format.cpp | 55 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) (limited to 'src/libcamera/bayer_format.cpp') diff --git a/src/libcamera/bayer_format.cpp b/src/libcamera/bayer_format.cpp index c42792ff..a6a40be0 100644 --- a/src/libcamera/bayer_format.cpp +++ b/src/libcamera/bayer_format.cpp @@ -8,6 +8,9 @@ #include "libcamera/internal/bayer_format.h" #include +#include + +#include #include @@ -140,6 +143,41 @@ const std::map bayerToV4l2{ { { BayerFormat::RGGB, 16, BayerFormat::None }, V4L2PixelFormat(V4L2_PIX_FMT_SRGGB16) }, }; +const std::unordered_map mbusCodeToBayer{ + { MEDIA_BUS_FMT_SBGGR8_1X8, { BayerFormat::BGGR, 8, BayerFormat::None } }, + { MEDIA_BUS_FMT_SGBRG8_1X8, { BayerFormat::GBRG, 8, BayerFormat::None } }, + { MEDIA_BUS_FMT_SGRBG8_1X8, { BayerFormat::GRBG, 8, BayerFormat::None } }, + { MEDIA_BUS_FMT_SRGGB8_1X8, { BayerFormat::RGGB, 8, BayerFormat::None } }, + { MEDIA_BUS_FMT_SBGGR10_ALAW8_1X8, { BayerFormat::BGGR, 8, BayerFormat::None } }, + { MEDIA_BUS_FMT_SGBRG10_ALAW8_1X8, { BayerFormat::GBRG, 8, BayerFormat::None } }, + { MEDIA_BUS_FMT_SGRBG10_ALAW8_1X8, { BayerFormat::GRBG, 8, BayerFormat::None } }, + { MEDIA_BUS_FMT_SRGGB10_ALAW8_1X8, { BayerFormat::RGGB, 8, BayerFormat::None } }, + { MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8, { BayerFormat::BGGR, 8, BayerFormat::None } }, + { MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8, { BayerFormat::GBRG, 8, BayerFormat::None } }, + { MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8, { BayerFormat::GRBG, 8, BayerFormat::None } }, + { MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8, { BayerFormat::RGGB, 8, BayerFormat::None } }, + { MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_BE, { BayerFormat::BGGR, 10, BayerFormat::None } }, + { MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, { BayerFormat::BGGR, 10, BayerFormat::None } }, + { MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_BE, { BayerFormat::BGGR, 10, BayerFormat::None } }, + { MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_LE, { BayerFormat::BGGR, 10, BayerFormat::None } }, + { MEDIA_BUS_FMT_SBGGR10_1X10, { BayerFormat::BGGR, 10, BayerFormat::None } }, + { MEDIA_BUS_FMT_SGBRG10_1X10, { BayerFormat::GBRG, 10, BayerFormat::None } }, + { MEDIA_BUS_FMT_SGRBG10_1X10, { BayerFormat::GRBG, 10, BayerFormat::None } }, + { MEDIA_BUS_FMT_SRGGB10_1X10, { BayerFormat::RGGB, 10, BayerFormat::None } }, + { MEDIA_BUS_FMT_SBGGR12_1X12, { BayerFormat::BGGR, 12, BayerFormat::None } }, + { MEDIA_BUS_FMT_SGBRG12_1X12, { BayerFormat::GBRG, 12, BayerFormat::None } }, + { MEDIA_BUS_FMT_SGRBG12_1X12, { BayerFormat::GRBG, 12, BayerFormat::None } }, + { MEDIA_BUS_FMT_SRGGB12_1X12, { BayerFormat::RGGB, 12, BayerFormat::None } }, + { MEDIA_BUS_FMT_SBGGR14_1X14, { BayerFormat::BGGR, 14, BayerFormat::None } }, + { MEDIA_BUS_FMT_SGBRG14_1X14, { BayerFormat::GBRG, 14, BayerFormat::None } }, + { MEDIA_BUS_FMT_SGRBG14_1X14, { BayerFormat::GRBG, 14, BayerFormat::None } }, + { MEDIA_BUS_FMT_SRGGB14_1X14, { BayerFormat::RGGB, 14, BayerFormat::None } }, + { MEDIA_BUS_FMT_SBGGR16_1X16, { BayerFormat::BGGR, 16, BayerFormat::None } }, + { MEDIA_BUS_FMT_SGBRG16_1X16, { BayerFormat::GBRG, 16, BayerFormat::None } }, + { MEDIA_BUS_FMT_SGRBG16_1X16, { BayerFormat::GRBG, 16, BayerFormat::None } }, + { MEDIA_BUS_FMT_SRGGB16_1X16, { BayerFormat::RGGB, 16, BayerFormat::None } }, +}; + } /* namespace */ /** @@ -169,6 +207,23 @@ BayerFormat::BayerFormat(V4L2PixelFormat v4l2Format) *this = it->second; } +/** + * \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 -- cgit v1.2.1