1/*! \file exif-tag.h 2 * \brief Handling EXIF tags 3 */ 4/* 5 * Copyright (c) 2001 Lutz Mueller <lutz@users.sourceforge.net> 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, write to the 19 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20 * Boston, MA 02110-1301 USA. 21 */ 22 23#ifndef __EXIF_TAG_H__ 24#define __EXIF_TAG_H__ 25 26#ifdef __cplusplus 27extern "C" { 28#endif /* __cplusplus */ 29 30#include <libexif/exif-ifd.h> 31#include <libexif/exif-data-type.h> 32 33/*! EXIF tags */ 34typedef enum { 35 EXIF_TAG_INTEROPERABILITY_INDEX = 0x0001, 36 EXIF_TAG_INTEROPERABILITY_VERSION = 0x0002, 37 EXIF_TAG_NEW_SUBFILE_TYPE = 0x00fe, 38 EXIF_TAG_IMAGE_WIDTH = 0x0100, 39 EXIF_TAG_IMAGE_LENGTH = 0x0101, 40 EXIF_TAG_BITS_PER_SAMPLE = 0x0102, 41 EXIF_TAG_COMPRESSION = 0x0103, 42 EXIF_TAG_PHOTOMETRIC_INTERPRETATION = 0x0106, 43 EXIF_TAG_FILL_ORDER = 0x010a, 44 EXIF_TAG_DOCUMENT_NAME = 0x010d, 45 EXIF_TAG_IMAGE_DESCRIPTION = 0x010e, 46 EXIF_TAG_MAKE = 0x010f, 47 EXIF_TAG_MODEL = 0x0110, 48 EXIF_TAG_STRIP_OFFSETS = 0x0111, 49 EXIF_TAG_ORIENTATION = 0x0112, 50 EXIF_TAG_SAMPLES_PER_PIXEL = 0x0115, 51 EXIF_TAG_ROWS_PER_STRIP = 0x0116, 52 EXIF_TAG_STRIP_BYTE_COUNTS = 0x0117, 53 EXIF_TAG_X_RESOLUTION = 0x011a, 54 EXIF_TAG_Y_RESOLUTION = 0x011b, 55 EXIF_TAG_PLANAR_CONFIGURATION = 0x011c, 56 EXIF_TAG_RESOLUTION_UNIT = 0x0128, 57 EXIF_TAG_TRANSFER_FUNCTION = 0x012d, 58 EXIF_TAG_SOFTWARE = 0x0131, 59 EXIF_TAG_DATE_TIME = 0x0132, 60 EXIF_TAG_ARTIST = 0x013b, 61 EXIF_TAG_WHITE_POINT = 0x013e, 62 EXIF_TAG_PRIMARY_CHROMATICITIES = 0x013f, 63 EXIF_TAG_SUB_IFDS = 0x014a, 64 EXIF_TAG_TRANSFER_RANGE = 0x0156, 65 EXIF_TAG_JPEG_PROC = 0x0200, 66 EXIF_TAG_JPEG_INTERCHANGE_FORMAT = 0x0201, 67 EXIF_TAG_JPEG_INTERCHANGE_FORMAT_LENGTH = 0x0202, 68 EXIF_TAG_YCBCR_COEFFICIENTS = 0x0211, 69 EXIF_TAG_YCBCR_SUB_SAMPLING = 0x0212, 70 EXIF_TAG_YCBCR_POSITIONING = 0x0213, 71 EXIF_TAG_REFERENCE_BLACK_WHITE = 0x0214, 72 EXIF_TAG_XML_PACKET = 0x02bc, 73 EXIF_TAG_RELATED_IMAGE_FILE_FORMAT = 0x1000, 74 EXIF_TAG_RELATED_IMAGE_WIDTH = 0x1001, 75 EXIF_TAG_RELATED_IMAGE_LENGTH = 0x1002, 76 EXIF_TAG_CFA_REPEAT_PATTERN_DIM = 0x828d, 77 EXIF_TAG_CFA_PATTERN = 0x828e, 78 EXIF_TAG_BATTERY_LEVEL = 0x828f, 79 EXIF_TAG_COPYRIGHT = 0x8298, 80 EXIF_TAG_EXPOSURE_TIME = 0x829a, 81 EXIF_TAG_FNUMBER = 0x829d, 82 EXIF_TAG_IPTC_NAA = 0x83bb, 83 EXIF_TAG_IMAGE_RESOURCES = 0x8649, 84 EXIF_TAG_EXIF_IFD_POINTER = 0x8769, 85 EXIF_TAG_INTER_COLOR_PROFILE = 0x8773, 86 EXIF_TAG_EXPOSURE_PROGRAM = 0x8822, 87 EXIF_TAG_SPECTRAL_SENSITIVITY = 0x8824, 88 EXIF_TAG_GPS_INFO_IFD_POINTER = 0x8825, 89 EXIF_TAG_ISO_SPEED_RATINGS = 0x8827, 90 EXIF_TAG_OECF = 0x8828, 91 EXIF_TAG_TIME_ZONE_OFFSET = 0x882a, 92 EXIF_TAG_EXIF_VERSION = 0x9000, 93 EXIF_TAG_DATE_TIME_ORIGINAL = 0x9003, 94 EXIF_TAG_DATE_TIME_DIGITIZED = 0x9004, 95 EXIF_TAG_COMPONENTS_CONFIGURATION = 0x9101, 96 EXIF_TAG_COMPRESSED_BITS_PER_PIXEL = 0x9102, 97 EXIF_TAG_SHUTTER_SPEED_VALUE = 0x9201, 98 EXIF_TAG_APERTURE_VALUE = 0x9202, 99 EXIF_TAG_BRIGHTNESS_VALUE = 0x9203, 100 EXIF_TAG_EXPOSURE_BIAS_VALUE = 0x9204, 101 EXIF_TAG_MAX_APERTURE_VALUE = 0x9205, 102 EXIF_TAG_SUBJECT_DISTANCE = 0x9206, 103 EXIF_TAG_METERING_MODE = 0x9207, 104 EXIF_TAG_LIGHT_SOURCE = 0x9208, 105 EXIF_TAG_FLASH = 0x9209, 106 EXIF_TAG_FOCAL_LENGTH = 0x920a, 107 EXIF_TAG_SUBJECT_AREA = 0x9214, 108 EXIF_TAG_TIFF_EP_STANDARD_ID = 0x9216, 109 EXIF_TAG_MAKER_NOTE = 0x927c, 110 EXIF_TAG_USER_COMMENT = 0x9286, 111 EXIF_TAG_SUB_SEC_TIME = 0x9290, 112 EXIF_TAG_SUB_SEC_TIME_ORIGINAL = 0x9291, 113 EXIF_TAG_SUB_SEC_TIME_DIGITIZED = 0x9292, 114 EXIF_TAG_XP_TITLE = 0x9c9b, 115 EXIF_TAG_XP_COMMENT = 0x9c9c, 116 EXIF_TAG_XP_AUTHOR = 0x9c9d, 117 EXIF_TAG_XP_KEYWORDS = 0x9c9e, 118 EXIF_TAG_XP_SUBJECT = 0x9c9f, 119 EXIF_TAG_FLASH_PIX_VERSION = 0xa000, 120 EXIF_TAG_COLOR_SPACE = 0xa001, 121 EXIF_TAG_PIXEL_X_DIMENSION = 0xa002, 122 EXIF_TAG_PIXEL_Y_DIMENSION = 0xa003, 123 EXIF_TAG_RELATED_SOUND_FILE = 0xa004, 124 EXIF_TAG_INTEROPERABILITY_IFD_POINTER = 0xa005, 125 EXIF_TAG_FLASH_ENERGY = 0xa20b, 126 EXIF_TAG_SPATIAL_FREQUENCY_RESPONSE = 0xa20c, 127 EXIF_TAG_FOCAL_PLANE_X_RESOLUTION = 0xa20e, 128 EXIF_TAG_FOCAL_PLANE_Y_RESOLUTION = 0xa20f, 129 EXIF_TAG_FOCAL_PLANE_RESOLUTION_UNIT = 0xa210, 130 EXIF_TAG_SUBJECT_LOCATION = 0xa214, 131 EXIF_TAG_EXPOSURE_INDEX = 0xa215, 132 EXIF_TAG_SENSING_METHOD = 0xa217, 133 EXIF_TAG_FILE_SOURCE = 0xa300, 134 EXIF_TAG_SCENE_TYPE = 0xa301, 135 EXIF_TAG_NEW_CFA_PATTERN = 0xa302, 136 EXIF_TAG_CUSTOM_RENDERED = 0xa401, 137 EXIF_TAG_EXPOSURE_MODE = 0xa402, 138 EXIF_TAG_WHITE_BALANCE = 0xa403, 139 EXIF_TAG_DIGITAL_ZOOM_RATIO = 0xa404, 140 EXIF_TAG_FOCAL_LENGTH_IN_35MM_FILM = 0xa405, 141 EXIF_TAG_SCENE_CAPTURE_TYPE = 0xa406, 142 EXIF_TAG_GAIN_CONTROL = 0xa407, 143 EXIF_TAG_CONTRAST = 0xa408, 144 EXIF_TAG_SATURATION = 0xa409, 145 EXIF_TAG_SHARPNESS = 0xa40a, 146 EXIF_TAG_DEVICE_SETTING_DESCRIPTION = 0xa40b, 147 EXIF_TAG_SUBJECT_DISTANCE_RANGE = 0xa40c, 148 EXIF_TAG_IMAGE_UNIQUE_ID = 0xa420, 149 EXIF_TAG_GAMMA = 0xa500, 150 EXIF_TAG_PRINT_IMAGE_MATCHING = 0xc4a5 151} ExifTag; 152 153/* GPS tags overlap with above ones. */ 154#define EXIF_TAG_GPS_VERSION_ID 0x0000 155#define EXIF_TAG_GPS_LATITUDE_REF 0x0001 /* INTEROPERABILITY_INDEX */ 156#define EXIF_TAG_GPS_LATITUDE 0x0002 /* INTEROPERABILITY_VERSION */ 157#define EXIF_TAG_GPS_LONGITUDE_REF 0x0003 158#define EXIF_TAG_GPS_LONGITUDE 0x0004 159#define EXIF_TAG_GPS_ALTITUDE_REF 0x0005 160#define EXIF_TAG_GPS_ALTITUDE 0x0006 161#define EXIF_TAG_GPS_TIME_STAMP 0x0007 162#define EXIF_TAG_GPS_SATELLITES 0x0008 163#define EXIF_TAG_GPS_STATUS 0x0009 164#define EXIF_TAG_GPS_MEASURE_MODE 0x000a 165#define EXIF_TAG_GPS_DOP 0x000b 166#define EXIF_TAG_GPS_SPEED_REF 0x000c 167#define EXIF_TAG_GPS_SPEED 0x000d 168#define EXIF_TAG_GPS_TRACK_REF 0x000e 169#define EXIF_TAG_GPS_TRACK 0x000f 170#define EXIF_TAG_GPS_IMG_DIRECTION_REF 0x0010 171#define EXIF_TAG_GPS_IMG_DIRECTION 0x0011 172#define EXIF_TAG_GPS_MAP_DATUM 0x0012 173#define EXIF_TAG_GPS_DEST_LATITUDE_REF 0x0013 174#define EXIF_TAG_GPS_DEST_LATITUDE 0x0014 175#define EXIF_TAG_GPS_DEST_LONGITUDE_REF 0x0015 176#define EXIF_TAG_GPS_DEST_LONGITUDE 0x0016 177#define EXIF_TAG_GPS_DEST_BEARING_REF 0x0017 178#define EXIF_TAG_GPS_DEST_BEARING 0x0018 179#define EXIF_TAG_GPS_DEST_DISTANCE_REF 0x0019 180#define EXIF_TAG_GPS_DEST_DISTANCE 0x001a 181#define EXIF_TAG_GPS_PROCESSING_METHOD 0x001b 182#define EXIF_TAG_GPS_AREA_INFORMATION 0x001c 183#define EXIF_TAG_GPS_DATE_STAMP 0x001d 184#define EXIF_TAG_GPS_DIFFERENTIAL 0x001e 185 186/*! What level of support a tag enjoys in the EXIF standard */ 187typedef enum { 188 /*! The meaning of this tag is unknown */ 189 EXIF_SUPPORT_LEVEL_UNKNOWN = 0, 190 191 /*! This tag is not allowed in the given IFD */ 192 EXIF_SUPPORT_LEVEL_NOT_RECORDED, 193 194 /*! This tag is mandatory in the given IFD */ 195 EXIF_SUPPORT_LEVEL_MANDATORY, 196 197 /*! This tag is optional in the given IFD */ 198 EXIF_SUPPORT_LEVEL_OPTIONAL 199} ExifSupportLevel; 200 201/*! Return the tag ID given its unique textual name. 202 * 203 * \param[in] name tag name 204 * \return tag ID 205 */ 206ExifTag exif_tag_from_name (const char *name); 207 208/*! Return a textual name of the given tag when found in the given IFD. The 209 * name is a short, unique, non-localized text string containing only 210 * US-ASCII alphanumeric characters. 211 * 212 * \param[in] tag EXIF tag 213 * \param[in] ifd IFD 214 * \return textual name of the tag, or NULL if the tag is unknown 215 */ 216const char *exif_tag_get_name_in_ifd (ExifTag tag, ExifIfd ifd); 217 218/*! Return a textual title of the given tag when found in the given IFD. 219 * The title is a short, localized description of the tag. 220 * 221 * \param[in] tag EXIF tag 222 * \param[in] ifd IFD 223 * \return textual title of the tag, or NULL if the tag is unknown 224 */ 225const char *exif_tag_get_title_in_ifd (ExifTag tag, ExifIfd ifd); 226 227/*! Return a verbose textual description of the given tag when found in the 228 * given IFD. The description is a verbose, localized description of the tag. 229 * 230 * \param[in] tag EXIF tag 231 * \param[in] ifd IFD 232 * \return textual description of the tag, or NULL if the tag is unknown 233 */ 234const char *exif_tag_get_description_in_ifd (ExifTag tag, ExifIfd ifd); 235 236/*! Return whether the given tag is mandatory or not in the given IFD and 237 * data type according to the EXIF specification. If the IFD given is 238 * EXIF_IFD_COUNT, the result is EXIF_SUPPORT_LEVEL_UNKNOWN. If the data 239 * type is EXIF_DATA_TYPE_UNKNOWN, the result is 240 * EXIF_SUPPORT_LEVEL_UNKNOWN unless the support level is the same for 241 * all data types. 242 * 243 * \param[in] tag EXIF tag 244 * \param[in] ifd IFD or EXIF_IFD_COUNT 245 * \param[in] t data type or EXIF_DATA_TYPE_UNKNOWN 246 * \return the level of support for this tag 247 */ 248ExifSupportLevel exif_tag_get_support_level_in_ifd (ExifTag tag, ExifIfd ifd, 249 ExifDataType t); 250 251/* Don't use these functions. They are here for compatibility only. */ 252 253/*! \deprecated Use #exif_tag_get_name_in_ifd instead */ 254const char *exif_tag_get_name (ExifTag tag); 255 256/*! \deprecated Use #exif_tag_get_title_in_ifd instead */ 257const char *exif_tag_get_title (ExifTag tag); 258 259/*! \deprecated Use #exif_tag_get_description_in_ifd instead */ 260const char *exif_tag_get_description (ExifTag tag); 261 262 263/* For now, do not use these functions. */ 264 265/*! \internal */ 266ExifTag exif_tag_table_get_tag (unsigned int n); 267 268/*! \internal */ 269const char *exif_tag_table_get_name (unsigned int n); 270 271/*! \internal */ 272unsigned int exif_tag_table_count (void); 273 274 275/* Don't use these definitions. They are here for compatibility only. */ 276 277/*! \deprecated Use EXIF_TAG_PRINT_IMAGE_MATCHING instead. */ 278#define EXIF_TAG_UNKNOWN_C4A5 EXIF_TAG_PRINT_IMAGE_MATCHING 279 280#ifdef __cplusplus 281} 282#endif /* __cplusplus */ 283 284#endif /* __EXIF_TAG_H__ */ 285