GDAL
gdalexif.h
1 /******************************************************************************
2  * $Id: gdalexif.h 24549 2012-06-09 20:14:14Z rouault $
3  *
4  * Project: JPEG JFIF Driver
5  * Purpose: Implement GDAL JPEG Support based on IJG libjpeg.
6  * Author: Frank Warmerdam, warmerdam@pobox.com
7  *
8  ******************************************************************************
9  * Copyright (c) 2000, Frank Warmerdam
10  *
11  * Permission is hereby granted, free of charge, to any person obtaining a
12  * copy of this software and associated documentation files (the "Software"),
13  * to deal in the Software without restriction, including without limitation
14  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15  * and/or sell copies of the Software, and to permit persons to whom the
16  * Software is furnished to do so, subject to the following conditions:
17  *
18  * The above copyright notice and this permission notice shall be included
19  * in all copies or substantial portions of the Software.
20  *
21  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
27  * DEALINGS IN THE SOFTWARE.
28  ****************************************************************************/
29 
30 #define EXIFOFFSETTAG 0x8769
31 #define INTEROPERABILITYOFFSET 0xA005
32 #define GPSOFFSETTAG 0x8825
33 #define MAXSTRINGLENGTH 65535
34 
35 #ifdef RENAME_INTERNAL_LIBTIFF_SYMBOLS
36 #include "../frmts/gtiff/libtiff/gdal_libtiff_symbol_rename.h"
37 #endif
38 
39 static const struct gpsname {
40  GUInt16 tag;
41  const char* name;
42 } gpstags [] = {
43  { 0x00, "EXIF_GPSVersionID" },
44  { 0x01, "EXIF_GPSLatitudeRef" },
45  { 0x02, "EXIF_GPSLatitude" },
46  { 0x03, "EXIF_GPSLongitudeRef" },
47  { 0x04, "EXIF_GPSLongitude" },
48  { 0x05, "EXIF_GPSAltitudeRef" },
49  { 0x06, "EXIF_GPSAltitude" },
50  { 0x07, "EXIF_GPSTimeStamp" },
51  { 0x08, "EXIF_GPSSatellites" },
52  { 0x09, "EXIF_GPSStatus" },
53  { 0x0a, "EXIF_GPSMeasureMode" },
54  { 0x0b, "EXIF_GPSDOP" },
55  { 0x0c, "EXIF_GPSSpeedRef"},
56  { 0x0d, "EXIF_GPSSpeed"},
57  { 0x0e, "EXIF_GPSTrackRef"},
58  { 0x0f, "EXIF_GPSTrack"},
59  { 0x10, "EXIF_GPSImgDirectionRef"},
60  { 0x11, "EXIF_GPSImgDirection"},
61  { 0x12, "EXIF_GPSMapDatum"},
62  { 0x13, "EXIF_GPSDestLatitudeRef"},
63  { 0x14, "EXIF_GPSDestLatitude"},
64  { 0x15, "EXIF_GPSDestLongitudeRef"},
65  { 0x16, "EXIF_GPSDestLongitude"},
66  { 0x17, "EXIF_GPSDestBearingRef"},
67  { 0x18, "EXIF_GPSDestBearing"},
68  { 0x19, "EXIF_GPSDestDistanceRef"},
69  { 0x1a, "EXIF_GPSDestDistance"},
70  { 0x1b, "EXIF_GPSProcessingMethod"},
71  { 0x1c, "EXIF_GPSAreaInformation"},
72  { 0x1d, "EXIF_GPSDateStamp"},
73  { 0x1e, "EXIF_GPSDifferential"},
74  { 0xffff, ""}
75 };
76 
77 static const struct tagname {
78  GUInt16 tag;
79  const char* name;
80 } tagnames [] = {
81 
82 // { 0x100, "EXIF_Image_Width"},
83 // { 0x101, "EXIF_Image_Length"},
84  { 0x102, "EXIF_BitsPerSample"},
85  { 0x103, "EXIF_Compression"},
86  { 0x106, "EXIF_PhotometricInterpretation"},
87  { 0x10A, "EXIF_Fill_Order"},
88  { 0x10D, "EXIF_Document_Name"},
89  { 0x10E, "EXIF_ImageDescription"},
90  { 0x10F, "EXIF_Make"},
91  { 0x110, "EXIF_Model"},
92  { 0x111, "EXIF_StripOffsets"},
93  { 0x112, "EXIF_Orientation"},
94  { 0x115, "EXIF_SamplesPerPixel"},
95  { 0x116, "EXIF_RowsPerStrip"},
96  { 0x117, "EXIF_StripByteCounts"},
97  { 0x11A, "EXIF_XResolution"},
98  { 0x11B, "EXIF_YResolution"},
99  { 0x11C, "EXIF_PlanarConfiguration"},
100  { 0x128, "EXIF_ResolutionUnit"},
101  { 0x12D, "EXIF_TransferFunction"},
102  { 0x131, "EXIF_Software"},
103  { 0x132, "EXIF_DateTime"},
104  { 0x13B, "EXIF_Artist"},
105  { 0x13E, "EXIF_WhitePoint"},
106  { 0x13F, "EXIF_PrimaryChromaticities"},
107  { 0x156, "EXIF_Transfer_Range"},
108  { 0x200, "EXIF_JPEG_Proc"},
109  { 0x201, "EXIF_JPEGInterchangeFormat"},
110  { 0x202, "EXIF_JPEGInterchangeFormatLength"},
111  { 0x211, "EXIF_YCbCrCoefficients"},
112  { 0x212, "EXIF_YCbCrSubSampling"},
113  { 0x213, "EXIF_YCbCrPositioning"},
114  { 0x214, "EXIF_ReferenceBlackWhite"},
115  { 0x828D, "EXIF_CFA_Repeat_Pattern_Dim"},
116  { 0x828E, "EXIF_CFA_Pattern"},
117  { 0x828F, "EXIF_Battery_Level"},
118  { 0x8298, "EXIF_Copyright"},
119  { 0x829A, "EXIF_ExposureTime"},
120  { 0x829D, "EXIF_FNumber"},
121  { 0x83BB, "EXIF_IPTC/NAA"},
122 // { 0x8769, "EXIF_Offset"},
123  { 0x8773, "EXIF_Inter_Color_Profile"},
124  { 0x8822, "EXIF_ExposureProgram"},
125  { 0x8824, "EXIF_SpectralSensitivity"},
126 // { 0x8825, "EXIF_GPSOffset"},
127  { 0x8827, "EXIF_ISOSpeedRatings"},
128  { 0x8828, "EXIF_OECF"},
129  { 0x9000, "EXIF_ExifVersion"},
130  { 0x9003, "EXIF_DateTimeOriginal"},
131  { 0x9004, "EXIF_DateTimeDigitized"},
132  { 0x9101, "EXIF_ComponentsConfiguration"},
133  { 0x9102, "EXIF_CompressedBitsPerPixel"},
134  { 0x9201, "EXIF_ShutterSpeedValue"},
135  { 0x9202, "EXIF_ApertureValue"},
136  { 0x9203, "EXIF_BrightnessValue"},
137  { 0x9204, "EXIF_ExposureBiasValue"},
138  { 0x9205, "EXIF_MaxApertureValue"},
139  { 0x9206, "EXIF_SubjectDistance"},
140  { 0x9207, "EXIF_MeteringMode"},
141  { 0x9208, "EXIF_LightSource"},
142  { 0x9209, "EXIF_Flash"},
143  { 0x920A, "EXIF_FocalLength"},
144  { 0x9214, "EXIF_SubjectArea"},
145  { 0x927C, "EXIF_MakerNote"},
146  { 0x9286, "EXIF_UserComment"},
147  { 0x9290, "EXIF_SubSecTime"},
148  { 0x9291, "EXIF_SubSecTime_Original"},
149  { 0x9292, "EXIF_SubSecTime_Digitized"},
150  { 0xA000, "EXIF_FlashpixVersion"},
151  { 0xA001, "EXIF_ColorSpace"},
152  { 0xA002, "EXIF_PixelXDimension"},
153  { 0xA003, "EXIF_PixelYDimension"},
154  { 0xA004, "EXIF_RelatedSoundFile"},
155 // { 0xA005, "EXIF_InteroperabilityOffset"},
156  { 0xA20B, "EXIF_FlashEnergy"}, // 0x920B in TIFF/EP
157  { 0xA20C, "EXIF_SpatialFrequencyResponse"}, // 0x920C - -
158  { 0xA20E, "EXIF_FocalPlaneXResolution"}, // 0x920E - -
159  { 0xA20F, "EXIF_FocalPlaneYResolution"}, // 0x920F - -
160  { 0xA210, "EXIF_FocalPlaneResolutionUnit"}, // 0x9210 - -
161  { 0xA214, "EXIF_SubjectLocation"}, // 0x9214 - -
162  { 0xA215, "EXIF_ExposureIndex"}, // 0x9215 - -
163  { 0xA217, "EXIF_SensingMethod"}, // 0x9217 - -
164  { 0xA300, "EXIF_FileSource"},
165  { 0xA301, "EXIF_SceneType"},
166  { 0xA302, "EXIF_CFAPattern"},
167  { 0xA401, "EXIF_CustomRendered"},
168  { 0xA402, "EXIF_ExposureMode"},
169  { 0XA403, "EXIF_WhiteBalance"},
170  { 0xA404, "EXIF_DigitalZoomRatio"},
171  { 0xA405, "EXIF_FocalLengthIn35mmFilm"},
172  { 0xA406, "EXIF_SceneCaptureType"},
173  { 0xA407, "EXIF_GainControl"},
174  { 0xA408, "EXIF_Contrast"},
175  { 0xA409, "EXIF_Saturation"},
176  { 0xA40A, "EXIF_Sharpness"},
177  { 0xA40B, "EXIF_DeviceSettingDescription"},
178  { 0xA40C, "EXIF_SubjectDistanceRange"},
179  { 0xA420, "EXIF_ImageUniqueID"},
180  { 0x0000, ""}
181 };
182 
183 
184 static const struct intr_tag {
185  GInt16 tag;
186  const char* name;
187 } intr_tags [] = {
188 
189  { 0x1, "EXIF_Interoperability_Index"},
190  { 0x2, "EXIF_Interoperability_Version"},
191  { 0x1000, "EXIF_Related_Image_File_Format"},
192  { 0x1001, "EXIF_Related_Image_Width"},
193  { 0x1002, "EXIF_Related_Image_Length"},
194  { 0x0000, ""}
195 };
196 
197 typedef enum {
198  TIFF_NOTYPE = 0, /* placeholder */
199  TIFF_BYTE = 1, /* 8-bit unsigned integer */
200  TIFF_ASCII = 2, /* 8-bit bytes w/ last byte null */
201  TIFF_SHORT = 3, /* 16-bit unsigned integer */
202  TIFF_LONG = 4, /* 32-bit unsigned integer */
203  TIFF_RATIONAL = 5, /* 64-bit unsigned fraction */
204  TIFF_SBYTE = 6, /* !8-bit signed integer */
205  TIFF_UNDEFINED = 7, /* !8-bit untyped data */
206  TIFF_SSHORT = 8, /* !16-bit signed integer */
207  TIFF_SLONG = 9, /* !32-bit signed integer */
208  TIFF_SRATIONAL = 10, /* !64-bit signed fraction */
209  TIFF_FLOAT = 11, /* !32-bit IEEE floating point */
210  TIFF_DOUBLE = 12, /* !64-bit IEEE floating point */
211  TIFF_IFD = 13 /* %32-bit unsigned integer (offset) */
212 } TIFFDataType;
213 
214 /*
215  * TIFF Image File Directories are comprised of a table of field
216  * descriptors of the form shown below. The table is sorted in
217  * ascending order by tag. The values associated with each entry are
218  * disjoint and may appear anywhere in the file (so long as they are
219  * placed on a word boundary).
220  *
221  * If the value is 4 bytes or less, then it is placed in the offset
222  * field to save space. If the value is less than 4 bytes, it is
223  * left-justified in the offset field.
224  */
225 typedef struct {
226  GUInt16 tdir_tag; /* see below */
227  GUInt16 tdir_type; /* data type; see below */
228  GUInt32 tdir_count; /* number of items; length in spec */
229  GUInt32 tdir_offset; /* byte offset to field data */
230 } TIFFDirEntry;
231 
232 CPL_C_START
233 extern int TIFFDataWidth(TIFFDataType); /* table of tag datatype widths */
234 extern void TIFFSwabShort(GUInt16*);
235 extern void TIFFSwabLong(GUInt32*);
236 extern void TIFFSwabDouble(double*);
237 extern void TIFFSwabArrayOfShort(GUInt16*, unsigned long);
238 extern void TIFFSwabArrayOfLong(GUInt32*, unsigned long);
239 extern void TIFFSwabArrayOfDouble(double*, unsigned long);
240 CPL_C_END
241 
Definition: gdalexif.h:225

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