#include <u.h>
#include <libc.h>
#include <bio.h>
#include "exif.h"
Namval interp[] = {
{ 0, "White is zero" },
{ 1, "Black is zero" },
{ 2, "RGB" },
{ 3, "RGB Palette" },
{ 4, "Transparency mask" },
{ 5, "CMYK" },
{ 6, "YCbCr" },
{ 8, "CIELab" },
{ 9, "ICCLab" },
{ 10, "ITULab" },
{ 32803, "Color filter array" },
{ 32844, "Pixar LogL" },
{ 32845, "Pixar LogLuv" },
{ 34892, "Linear raw" },
{ -1, nil }
};
Namval compression[] = {
{ 1, "Uncompressed" },
{ 2, "CCITT 1D" },
{ 3, "T4/Group 3 Fax" },
{ 4, "T6/Group 4 Fax" },
{ 5, "LZW" },
{ 6, "JPEG (old-style)" },
{ 7, "JPEG" },
{ 8, "Adobe Deflate" },
{ 9, "JBIG B&W" },
{ 10, "JBIG Color" },
{ 32766, "Next" },
{ 32769, "Epson ERF Compressed" },
{ 32771, "CCIRLEW" },
{ 32773, "PackBits" },
{ 32809, "Thunderscan" },
{ 32895, "IT8CTPAD" },
{ 32896, "IT8LW" },
{ 32897, "IT8MP" },
{ 32898, "IT8BL" },
{ 32908, "PixarFilm" },
{ 32909, "PixarLog" },
{ 32946, "Deflate" },
{ 32947, "DCS" },
{ 34661, "JBIG" },
{ 34676, "SGILog" },
{ 34677, "SGILog24" },
{ 34712, "JPEG 2000" },
{ 34713, "Nikon NEF Compressed" },
{ 65000, "Kodak DCR Compressed" },
{ 65535, "Pentax PEF Compressed" },
{ -1, nil }
};
Namval file_source[] = {
{ 1, "Film scanner" },
{ 2, "Reflection print scanner" },
{ 3, "Digital camera" },
{ -1, nil }
};
Namval meter_mode[] = {
{ 1, "Average" },
{ 2, "Center weighted average" },
{ 3, "Spot" },
{ 4, "Multi-spot" },
{ 5, "Multi-segement" },
{ 6, "Partial" },
{ -1, nil }
};
Namval exposure_prog[] = {
{ 1, "Manual" },
{ 2, "Aperture priority" },
{ 3, "Shutter priority" },
{ 5, "Program creative (slow)" },
{ 6, "Program action (high-speed)" },
{ 7, "Portrait mode" },
{ 8, "Landscape mode" },
{ -1, nil },
};
Namval light_src[] = {
{ 0, "Unknown" },
{ 1, "Daylight" },
{ 2, "Fluorescent" },
{ 3, "Tungsten" },
{ 4, "Flash" },
{ 9, "Fine weather" },
{ 10, "Cloudy weather" },
{ 11, "Shade" },
{ 12, "Daylight fluorescent" },
{ 13, "Day white fluorescent" },
{ 14, "Cool white fluorescent" },
{ 15, "White fluorescent" },
{ 17, "Standard light A" },
{ 18, "Standard light B" },
{ 19, "Standard light C" },
{ 20, "D55" },
{ 21, "D65" },
{ 22, "D75" },
{ 23, "D50" },
{ 24, "ISO studio tungsten" },
{ -1, nil }
};
Namval flash[] = {
{ 0x0, "No Flash" },
{ 0x1, "Fired" },
{ 0x5, "Fired, Return not detected" },
{ 0x7, "Fired, Return detected" },
{ 0x8, "On, Did not fire" },
{ 0x9, "On" },
{ 0xd, "On, Return not detected" },
{ 0xf, "On, Return detected" },
{ 0x10, "Off" },
{ 0x14, "Off, Did not fire, Return not detected" },
{ 0x18, "Auto, Did not fire" },
{ 0x19, "Auto, Fired" },
{ 0x1d, "Auto, Fired, Return not detected" },
{ 0x1f, "Auto, Fired, Return detected" },
{ 0x20, "No flash function" },
{ 0x30, "Off, No flash function" },
{ 0x41, "Fired, Red-eye reduction" },
{ 0x45, "Fired, Red-eye reduction, Return not detected" },
{ 0x47, "Fired, Red-eye reduction, Return detected" },
{ 0x49, "On, Red-eye reduction" },
{ 0x4d, "On, Red-eye reduction, Return not detected" },
{ 0x4f, "On, Red-eye reduction, Return detected" },
{ 0x50, "Off, Red-eye reduction" },
{ 0x58, "Auto, Did not fire, Red-eye reduction" },
{ 0x59, "Auto, Fired, Red-eye reduction" },
{ 0x5d, "Auto, Fired, Red-eye reduction, Return not detected" },
{ 0x5f, "Auto, Fired, Red-eye reduction, Return detected" },
{ -1, nil }
};
Namval orient[] = {
{ 1, "Horizontal (normal)" },
{ 2, "Mirror horizontally" },
{ 3, "Rotate 180" },
{ 4, "Mirror vertical" },
{ 5, "Mirror horizontally and rotate 270 counter-clockwise" },
{ 6, "Rotate 90 counter-clockwise" },
{ 7, "Mirror horizontally and rotate 90 counter-clockwise" },
{ 8, "Rotate 270 counter-clockwise" },
{ -1, nil }
};
Namval sensing_method[] = {
{ 1, "Not defined" },
{ 2, "One-chip color area" },
{ 3, "Two-chip color area" },
{ 4, "Three-chip color area" },
{ 5, "Color sequential area" },
{ 7, "Trilinear" },
{ 8, "Color sequential linear" },
{ -1, nil }
};
Namval scene_captured[] = {
{ 0, "Standard" },
{ 1, "Landscape" },
{ 2, "Portrait" },
{ 3, "Night" },
{ -1, nil }
};
Namval scene_type[] = {
{ 1, "Directly photographed" },
{ -1, nil }
};
Namval comp_config[] = {
{ 0x60504, "RGB" },
{ 0x30201, "YCbCr" },
{ -1, nil }
};
Namval rendered[] = {
{ 0, "Normal" },
{ 1, "Custom" },
{ -1, nil },
};
Namval res_units[] = {
{ 1, "None" },
{ 2, "in" },
{ 3, "cm" },
{ 4, "mm" },
{ 5, "um" },
{ -1, nil }
};
Namval colour_space[] = {
{ 1, "sRGB" },
{ 2, "Adobe RGB" }, // not used it appears
{ 65535, "Uncalibrated" },
{ -1, nil },
};
Namval gain_control[] = {
{ 0, "None" },
{ 1, "Low gain up" },
{ 2, "High gain up" },
{ 3, "Low gain down" },
{ 4, "High gain down" },
{ -1, nil },
};
Namval norm_lo_hi[] = {
{ 0, "Normal" },
{ 1, "Low" },
{ 2, "High" },
{ -1, nil },
};
Namval sharpness[] = {
{ 0, "Normal" },
{ 1, "Soft" },
{ 2, "Hard" },
{ -1, nil },
};
Namval range[] = {
{ 1, "Macro" },
{ 2, "Close" },
{ 3, "Distant" },
{ -1, nil },
};
Namval white_bal[] = {
{ 0, "Auto" },
{ 1, "Manual" },
{ -1, nil },
};
Namval exposure_mode[] = {
{ 0, "Auto" },
{ 1, "Manual" },
{ 1, "Auto bracket" },
{ -1, nil },
};
Namval jpeg_proc[] = {
{ 1, "Baseline" },
{ 14, "Lossless" },
{ -1, nil },
};
Namval ycbcr_posn[] = {
{ 1, "Centered" },
{ 2, "co-sited" },
{ -1, nil },
};
Exif Table[] = {
// is_useful, ID, Name, func to decode, subtable
{ 1, 0x0100, "Image width", nil, nil },
{ 1, 0x0101, "Image length", nil, nil },
{ 0, 0x0102, "Bits per sample", nil, nil },
{ 0, 0x0103, "Compression", nil, compression },
{ 0, 0x0106, "Photometric interpretation", nil, interp },
{ 0, 0x010a, "Fill order", nil, nil },
{ 0, 0x010d, "Document name", nil, nil },
{ 0, 0x010e, "Image description", nil, nil },
{ 1, 0x010f, "Make", nil, nil },
{ 1, 0x0110, "Model", nil, nil },
{ 0, 0x0111, "Strip offsets", nil, nil },
{ 0, 0x0112, "Orientation", nil, orient },
{ 0, 0x0115, "Samples per pixel", nil, nil },
{ 0, 0x0116, "Rows per strip", nil, nil },
{ 0, 0x0117, "Strip byte counts", nil, nil },
{ 0, 0x011a, "X resolution", nil, nil },
{ 0, 0x011b, "Y resolution", nil, nil },
{ 0, 0x011c, "Planar configuration", nil, nil },
{ 0, 0x0128, "Resolution unit", nil, res_units },
{ 0, 0x012d, "Transfer function", nil, nil },
{ 0, 0x0131, "Software", nil, nil },
{ 0, 0x0132, "Date time", nil, nil },
{ 1, 0x013b, "Artist", nil, nil },
{ 0, 0x013e, "White point", nil, nil },
{ 0, 0x013f, "Primary chromaticities", nil, nil },
{ 0, 0x0156, "Transfer range", nil, nil },
{ 0, 0x0200, "Jpeg proc", nil, jpeg_proc },
{ 0, 0x0201, "Thumbnail start", nil, nil },
{ 0, 0x0202, "Thumbnail length", nil, nil },
{ 0, 0x0211, "Ycbcr coefficients", nil, nil },
{ 0, 0x0212, "YCbCr sub sampling", nil, nil },
{ 0, 0x0213, "YCbCr positioning", nil, ycbcr_posn },
{ 0, 0x0282, "X resolution", nil, nil },
{ 0, 0x0283, "Y resolution", nil, nil },
{ 0, 0x0214, "Reference black white", nil, nil },
{ 0, 0x1001, "Related image width", nil, nil },
{ 0, 0x1002, "Related image length", nil, nil },
{ 0, 0x828f, "Battery level", nil, nil },
{ 1, 0x8298, "Copyright", nil, nil },
{ 1, 0x829a, "Exposure time", tag_shutter, nil },
{ 1, 0x829d, "F number", nil, nil },
{ 0, 0x83bb, "IPTC/NAA", nil, nil },
{ 0, 0x8769, "Exif IFD pointer", nil, nil },
{ 0, 0x8773, "Inter color profile", nil, nil },
{ 0, 0x8822, "Exposure program", nil, exposure_prog },
{ 0, 0x8824, "Spectral sensitivity", nil, nil },
{ 0, 0x8825, "GPS info IFD pointer", nil, nil },
{ 1, 0x8827, "ISO speed ratings", nil, nil },
{ 0, 0x8828, "OECF", nil, nil },
{ 0, 0x9000, "Exif version", tag_version, nil },
{ 1, 0x9003, "Date time original", nil, nil },
{ 0, 0x9004, "Date time digitized", nil, nil },
{ 0, 0x9101, "Components configuration", nil, comp_config },
{ 0, 0x9102, "Compressed bits per pixel", nil, nil },
{ 0, 0x9201, "Shutter speed value", tag_apex, nil },
{ 0, 0x9202, "Aperture value", tag_apex, nil },
{ 0, 0x9203, "Brightness value", tag_apex, nil },
{ 0, 0x9204, "Exposure bias value", tag_apex, nil },
{ 0, 0x9205, "Max aperture value", tag_apex, nil },
{ 1, 0x9206, "Subject distance", tag_distance, nil },
{ 1, 0x9207, "Metering mode", nil, meter_mode },
{ 1, 0x9208, "Light source", nil, light_src },
{ 0, 0x9209, "Flash", nil, flash, },
{ 1, 0x920a, "Focal length", tag_lens, nil },
{ 0, 0x9214, "Subject area", nil, nil },
{ 0, 0x927c, "Maker note", nil, nil },
{ 0, 0x9286, "User comment", tag_comment, nil},
{ 0, 0x9290, "Sub sec time", nil, nil },
{ 0, 0x9291, "Sub sec time original", nil, nil },
{ 0, 0x9292, "Sub sec time digitized", nil, nil },
{ 0, 0xa000, "Flash pix version", tag_version, nil},
{ 0, 0xa001, "Color space", nil, colour_space },
{ 1, 0xa002, "Pixel X dimension", nil, nil },
{ 1, 0xa003, "Pixel Y dimension", nil, nil },
{ 0, 0xa004, "Related sound file", nil, nil },
{ 0, 0xa005, "Interoperability IFD pointer", nil, nil },
{ 0, 0xa20b, "Flash energy", nil, nil },
{ 0, 0xa20c, "Spatial frequency response", nil, nil },
{ 0, 0xa20e, "Focal plane X resolution", nil, nil },
{ 0, 0xa20f, "Focal plane Y resolution", nil, nil },
{ 0, 0xa210, "Focal plane resolution unit", nil, res_units },
{ 0, 0xa214, "Subject location", nil, nil },
{ 0, 0xa215, "Exposure index", nil, nil },
{ 0, 0xa217, "Sensing method", nil, sensing_method },
{ 0, 0xa300, "File source", nil, file_source },
{ 0, 0xa301, "Scene type", nil, scene_type },
{ 0, 0xa302, "CFA pattern", nil, nil },
{ 0, 0xa401, "Custom rendered", nil, rendered },
{ 1, 0xa402, "Exposure mode" , nil, exposure_mode },
{ 0, 0xa403, "White balance", nil, white_bal },
{ 1, 0xa404, "Digital zoom ratio", nil, nil },
{ 1, 0xa405, "Focal length in 35mm film", nil, nil },
{ 0, 0xa406, "Scene capture type", nil, scene_captured},
{ 0, 0xa407, "Gain control", nil, gain_control },
{ 0, 0xa408, "Contrast", nil, norm_lo_hi },
{ 0, 0xa409, "Saturation", nil, norm_lo_hi },
{ 0, 0xa40a, "Sharpness", nil, sharpness },
{ 0, 0xa40b, "Device setting description", nil, nil },
{ 1, 0xa40c, "Subject distance range", nil, range },
{ 1, 0xa420, "Image unique ID", nil, nil },
{ 0, 0xc4a5, "Print IM", nil, nil },
{ 0, 0, nil, nil, nil }
};
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