diff options
| -rw-r--r-- | src/libcamera/include/v4l2_subdevice.h | 2 | ||||
| -rw-r--r-- | src/libcamera/v4l2_subdevice.cpp | 102 |
2 files changed, 103 insertions, 1 deletions
diff --git a/src/libcamera/include/v4l2_subdevice.h b/src/libcamera/include/v4l2_subdevice.h index 27ba5b17..d0e565db 100644 --- a/src/libcamera/include/v4l2_subdevice.h +++ b/src/libcamera/include/v4l2_subdevice.h @@ -7,7 +7,6 @@ #ifndef __LIBCAMERA_V4L2_SUBDEVICE_H__ #define __LIBCAMERA_V4L2_SUBDEVICE_H__ -#include <map> #include <string> #include <vector> @@ -27,6 +26,7 @@ struct V4L2SubdeviceFormat { Size size; const std::string toString() const; + uint8_t bitsPerPixel() const; }; class V4L2Subdevice : public V4L2Device diff --git a/src/libcamera/v4l2_subdevice.cpp b/src/libcamera/v4l2_subdevice.cpp index 06bc430f..2b756178 100644 --- a/src/libcamera/v4l2_subdevice.cpp +++ b/src/libcamera/v4l2_subdevice.cpp @@ -14,6 +14,7 @@ #include <sys/ioctl.h> #include <unistd.h> +#include <linux/media-bus-format.h> #include <linux/v4l2-subdev.h> #include <libcamera/geometry.h> @@ -32,6 +33,90 @@ namespace libcamera { LOG_DECLARE_CATEGORY(V4L2) +namespace { + +/* + * \var formatInfoMap + * \brief A map that associates bits per pixel to V4L2 media bus codes + */ +const std::map<uint32_t, unsigned int> formatInfoMap = { + { V4L2_MBUS_FMT_RGB444_2X8_PADHI_BE, 16 }, + { V4L2_MBUS_FMT_RGB444_2X8_PADHI_LE, 16 }, + { V4L2_MBUS_FMT_RGB555_2X8_PADHI_BE, 16 }, + { V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE, 16 }, + { V4L2_MBUS_FMT_BGR565_2X8_BE, 16 }, + { V4L2_MBUS_FMT_BGR565_2X8_LE, 16 }, + { V4L2_MBUS_FMT_RGB565_2X8_BE, 16 }, + { V4L2_MBUS_FMT_RGB565_2X8_LE, 16 }, + { V4L2_MBUS_FMT_RGB666_1X18, 18 }, + { V4L2_MBUS_FMT_RGB888_1X24, 24 }, + { V4L2_MBUS_FMT_RGB888_2X12_BE, 24 }, + { V4L2_MBUS_FMT_RGB888_2X12_LE, 24 }, + { V4L2_MBUS_FMT_ARGB8888_1X32, 32 }, + { V4L2_MBUS_FMT_Y8_1X8, 8 }, + { V4L2_MBUS_FMT_UV8_1X8, 8 }, + { V4L2_MBUS_FMT_UYVY8_1_5X8, 12 }, + { V4L2_MBUS_FMT_VYUY8_1_5X8, 12 }, + { V4L2_MBUS_FMT_YUYV8_1_5X8, 12 }, + { V4L2_MBUS_FMT_YVYU8_1_5X8, 12 }, + { V4L2_MBUS_FMT_UYVY8_2X8, 16 }, + { V4L2_MBUS_FMT_VYUY8_2X8, 16 }, + { V4L2_MBUS_FMT_YUYV8_2X8, 16 }, + { V4L2_MBUS_FMT_YVYU8_2X8, 16 }, + { V4L2_MBUS_FMT_Y10_1X10, 10 }, + { V4L2_MBUS_FMT_UYVY10_2X10, 20 }, + { V4L2_MBUS_FMT_VYUY10_2X10, 20 }, + { V4L2_MBUS_FMT_YUYV10_2X10, 20 }, + { V4L2_MBUS_FMT_YVYU10_2X10, 20 }, + { V4L2_MBUS_FMT_Y12_1X12, 12 }, + { V4L2_MBUS_FMT_UYVY8_1X16, 16 }, + { V4L2_MBUS_FMT_VYUY8_1X16, 16 }, + { V4L2_MBUS_FMT_YUYV8_1X16, 16 }, + { V4L2_MBUS_FMT_YVYU8_1X16, 16 }, + { V4L2_MBUS_FMT_YDYUYDYV8_1X16, 16 }, + { V4L2_MBUS_FMT_UYVY10_1X20, 20 }, + { V4L2_MBUS_FMT_VYUY10_1X20, 20 }, + { V4L2_MBUS_FMT_YUYV10_1X20, 20 }, + { V4L2_MBUS_FMT_YVYU10_1X20, 20 }, + { V4L2_MBUS_FMT_YUV10_1X30, 30 }, + { V4L2_MBUS_FMT_AYUV8_1X32, 32 }, + { V4L2_MBUS_FMT_UYVY12_2X12, 24 }, + { V4L2_MBUS_FMT_VYUY12_2X12, 24 }, + { V4L2_MBUS_FMT_YUYV12_2X12, 24 }, + { V4L2_MBUS_FMT_YVYU12_2X12, 24 }, + { V4L2_MBUS_FMT_UYVY12_1X24, 24 }, + { V4L2_MBUS_FMT_VYUY12_1X24, 24 }, + { V4L2_MBUS_FMT_YUYV12_1X24, 24 }, + { V4L2_MBUS_FMT_YVYU12_1X24, 24 }, + { V4L2_MBUS_FMT_SBGGR8_1X8, 8 }, + { V4L2_MBUS_FMT_SGBRG8_1X8, 8 }, + { V4L2_MBUS_FMT_SGRBG8_1X8, 8 }, + { V4L2_MBUS_FMT_SRGGB8_1X8, 8 }, + { V4L2_MBUS_FMT_SBGGR10_ALAW8_1X8, 8 }, + { V4L2_MBUS_FMT_SGBRG10_ALAW8_1X8, 8 }, + { V4L2_MBUS_FMT_SGRBG10_ALAW8_1X8, 8 }, + { V4L2_MBUS_FMT_SRGGB10_ALAW8_1X8, 8 }, + { V4L2_MBUS_FMT_SBGGR10_DPCM8_1X8, 8 }, + { V4L2_MBUS_FMT_SGBRG10_DPCM8_1X8, 8 }, + { V4L2_MBUS_FMT_SGRBG10_DPCM8_1X8, 8 }, + { V4L2_MBUS_FMT_SRGGB10_DPCM8_1X8, 8 }, + { V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_BE, 16 }, + { V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE, 16 }, + { V4L2_MBUS_FMT_SBGGR10_2X8_PADLO_BE, 16 }, + { V4L2_MBUS_FMT_SBGGR10_2X8_PADLO_LE, 16 }, + { V4L2_MBUS_FMT_SBGGR10_1X10, 10 }, + { V4L2_MBUS_FMT_SGBRG10_1X10, 10 }, + { V4L2_MBUS_FMT_SGRBG10_1X10, 10 }, + { V4L2_MBUS_FMT_SRGGB10_1X10, 10 }, + { V4L2_MBUS_FMT_SBGGR12_1X12, 12 }, + { V4L2_MBUS_FMT_SGBRG12_1X12, 12 }, + { V4L2_MBUS_FMT_SGRBG12_1X12, 12 }, + { V4L2_MBUS_FMT_SRGGB12_1X12, 12 }, + { V4L2_MBUS_FMT_AHSV8888_1X32, 32 }, +}; + +} /* namespace */ + /** * \struct V4L2SubdeviceFormat * \brief The V4L2 sub-device image format and sizes @@ -82,6 +167,23 @@ const std::string V4L2SubdeviceFormat::toString() const } /** + * \brief Retrieve the number of bits per pixel for the V4L2 subdevice format + * \return The number of bits per pixel for the format, or 0 if the format is + * not supported + */ +uint8_t V4L2SubdeviceFormat::bitsPerPixel() const +{ + const auto it = formatInfoMap.find(mbus_code); + if (it == formatInfoMap.end()) { + LOG(V4L2, Error) << "No information available for format '" + << toString() << "'"; + return 0; + } + + return it->second; +} + +/** * \class V4L2Subdevice * \brief A V4L2 subdevice as exposed by the Linux kernel * |