EXIF library (libexif) API  0.6.21
exif-tag.h
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1 
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
27 extern "C" {
28 #endif /* __cplusplus */
29 
30 #include <libexif/exif-ifd.h>
31 #include <libexif/exif-data-type.h>
32 
34 typedef 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  EXIF_TAG_PADDING = 0xea1c
152 } ExifTag;
153 
154 /* GPS tags overlap with above ones. */
155 #define EXIF_TAG_GPS_VERSION_ID 0x0000
156 #define EXIF_TAG_GPS_LATITUDE_REF 0x0001 /* INTEROPERABILITY_INDEX */
157 #define EXIF_TAG_GPS_LATITUDE 0x0002 /* INTEROPERABILITY_VERSION */
158 #define EXIF_TAG_GPS_LONGITUDE_REF 0x0003
159 #define EXIF_TAG_GPS_LONGITUDE 0x0004
160 #define EXIF_TAG_GPS_ALTITUDE_REF 0x0005
161 #define EXIF_TAG_GPS_ALTITUDE 0x0006
162 #define EXIF_TAG_GPS_TIME_STAMP 0x0007
163 #define EXIF_TAG_GPS_SATELLITES 0x0008
164 #define EXIF_TAG_GPS_STATUS 0x0009
165 #define EXIF_TAG_GPS_MEASURE_MODE 0x000a
166 #define EXIF_TAG_GPS_DOP 0x000b
167 #define EXIF_TAG_GPS_SPEED_REF 0x000c
168 #define EXIF_TAG_GPS_SPEED 0x000d
169 #define EXIF_TAG_GPS_TRACK_REF 0x000e
170 #define EXIF_TAG_GPS_TRACK 0x000f
171 #define EXIF_TAG_GPS_IMG_DIRECTION_REF 0x0010
172 #define EXIF_TAG_GPS_IMG_DIRECTION 0x0011
173 #define EXIF_TAG_GPS_MAP_DATUM 0x0012
174 #define EXIF_TAG_GPS_DEST_LATITUDE_REF 0x0013
175 #define EXIF_TAG_GPS_DEST_LATITUDE 0x0014
176 #define EXIF_TAG_GPS_DEST_LONGITUDE_REF 0x0015
177 #define EXIF_TAG_GPS_DEST_LONGITUDE 0x0016
178 #define EXIF_TAG_GPS_DEST_BEARING_REF 0x0017
179 #define EXIF_TAG_GPS_DEST_BEARING 0x0018
180 #define EXIF_TAG_GPS_DEST_DISTANCE_REF 0x0019
181 #define EXIF_TAG_GPS_DEST_DISTANCE 0x001a
182 #define EXIF_TAG_GPS_PROCESSING_METHOD 0x001b
183 #define EXIF_TAG_GPS_AREA_INFORMATION 0x001c
184 #define EXIF_TAG_GPS_DATE_STAMP 0x001d
185 #define EXIF_TAG_GPS_DIFFERENTIAL 0x001e
186 
188 typedef enum {
191 
194 
197 
201 
209 ExifTag exif_tag_from_name (const char *name);
210 
219 const char *exif_tag_get_name_in_ifd (ExifTag tag, ExifIfd ifd);
220 
228 const char *exif_tag_get_title_in_ifd (ExifTag tag, ExifIfd ifd);
229 
237 const char *exif_tag_get_description_in_ifd (ExifTag tag, ExifIfd ifd);
238 
251 ExifSupportLevel exif_tag_get_support_level_in_ifd (ExifTag tag, ExifIfd ifd,
252  ExifDataType t);
253 
254 /* Don't use these functions. They are here for compatibility only. */
255 
257 const char *exif_tag_get_name (ExifTag tag);
258 
260 const char *exif_tag_get_title (ExifTag tag);
261 
263 const char *exif_tag_get_description (ExifTag tag);
264 
265 
266 /* For now, do not use these functions. */
267 
269 ExifTag exif_tag_table_get_tag (unsigned int n);
270 
272 const char *exif_tag_table_get_name (unsigned int n);
273 
275 unsigned int exif_tag_table_count (void);
276 
277 
278 /* Don't use these definitions. They are here for compatibility only. */
279 
281 #define EXIF_TAG_UNKNOWN_C4A5 EXIF_TAG_PRINT_IMAGE_MATCHING
282 
283 #ifdef __cplusplus
284 }
285 #endif /* __cplusplus */
286 
287 #endif /* __EXIF_TAG_H__ */
This tag is not allowed in the given IFD.
Definition: exif-tag.h:193
ExifTag
EXIF tags.
Definition: exif-tag.h:34
This tag is mandatory in the given IFD.
Definition: exif-tag.h:196
const char * exif_tag_get_description(ExifTag tag)
Definition: exif-tag.c:1074
ExifSupportLevel
What level of support a tag enjoys in the EXIF standard.
Definition: exif-tag.h:188
ExifTag exif_tag_from_name(const char *name)
Return the tag ID given its unique textual name.
Definition: exif-tag.c:1082
const char * exif_tag_get_name(ExifTag tag)
Definition: exif-tag.c:1062
const char * exif_tag_get_title(ExifTag tag)
Definition: exif-tag.c:1068
const char * exif_tag_get_title_in_ifd(ExifTag tag, ExifIfd ifd)
Return a textual title of the given tag when found in the given IFD.
Definition: exif-tag.c:968
The meaning of this tag is unknown.
Definition: exif-tag.h:190
const char * exif_tag_get_name_in_ifd(ExifTag tag, ExifIfd ifd)
Return a textual name of the given tag when found in the given IFD.
Definition: exif-tag.c:946
ExifSupportLevel exif_tag_get_support_level_in_ifd(ExifTag tag, ExifIfd ifd, ExifDataType t)
Return whether the given tag is mandatory or not in the given IFD and data type according to the EXIF...
Definition: exif-tag.c:1171
const char * exif_tag_get_description_in_ifd(ExifTag tag, ExifIfd ifd)
Return a verbose textual description of the given tag when found in the given IFD.
Definition: exif-tag.c:998
This tag is optional in the given IFD.
Definition: exif-tag.h:199
unsigned int exif_tag_table_count(void)
Return the number of entries in the EXIF tag table, including the terminating NULL entry...
Definition: exif-tag.c:881