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00021 #include <config.h>
00022
00023 #include <libexif/exif-entry.h>
00024 #include <libexif/exif-ifd.h>
00025 #include <libexif/exif-utils.h>
00026 #include <libexif/i18n.h>
00027
00028 #include <ctype.h>
00029 #include <stdlib.h>
00030 #include <stdio.h>
00031 #include <string.h>
00032 #include <time.h>
00033 #include <math.h>
00034
00035 struct _ExifEntryPrivate
00036 {
00037 unsigned int ref_count;
00038
00039 ExifMem *mem;
00040 };
00041
00042
00043 ExifLog *exif_data_get_log (ExifData *);
00044
00045 static void
00046 exif_entry_log (ExifEntry *e, ExifLogCode code, const char *format, ...)
00047 {
00048 va_list args;
00049 ExifLog *l = NULL;
00050
00051 if (e && e->parent && e->parent->parent)
00052 l = exif_data_get_log (e->parent->parent);
00053 va_start (args, format);
00054 exif_logv (l, code, "ExifEntry", format, args);
00055 va_end (args);
00056 }
00057
00058 static void *
00059 exif_entry_alloc (ExifEntry *e, unsigned int i)
00060 {
00061 void *d;
00062 ExifLog *l = NULL;
00063
00064 if (!e || !e->priv || !i) return NULL;
00065
00066 d = exif_mem_alloc (e->priv->mem, i);
00067 if (d) return d;
00068
00069 if (e->parent && e->parent->parent)
00070 l = exif_data_get_log (e->parent->parent);
00071 EXIF_LOG_NO_MEMORY (l, "ExifEntry", i);
00072 return NULL;
00073 }
00074
00075 static void *
00076 exif_entry_realloc (ExifEntry *e, void *d_orig, unsigned int i)
00077 {
00078 void *d;
00079 ExifLog *l = NULL;
00080
00081 if (!e || !e->priv) return NULL;
00082
00083 if (!i) { exif_mem_free (e->priv->mem, d_orig); return NULL; }
00084
00085 d = exif_mem_realloc (e->priv->mem, d_orig, i);
00086 if (d) return d;
00087
00088 if (e->parent && e->parent->parent)
00089 l = exif_data_get_log (e->parent->parent);
00090 EXIF_LOG_NO_MEMORY (l, "ExifEntry", i);
00091 return NULL;
00092 }
00093
00094 ExifEntry *
00095 exif_entry_new (void)
00096 {
00097 ExifMem *mem = exif_mem_new_default ();
00098 ExifEntry *e = exif_entry_new_mem (mem);
00099
00100 exif_mem_unref (mem);
00101
00102 return e;
00103 }
00104
00105 ExifEntry *
00106 exif_entry_new_mem (ExifMem *mem)
00107 {
00108 ExifEntry *e = NULL;
00109
00110 e = exif_mem_alloc (mem, sizeof (ExifEntry));
00111 if (!e) return NULL;
00112 e->priv = exif_mem_alloc (mem, sizeof (ExifEntryPrivate));
00113 if (!e->priv) { exif_mem_free (mem, e); return NULL; }
00114 e->priv->ref_count = 1;
00115
00116 e->priv->mem = mem;
00117 exif_mem_ref (mem);
00118
00119 return e;
00120 }
00121
00122 void
00123 exif_entry_ref (ExifEntry *e)
00124 {
00125 if (!e) return;
00126
00127 e->priv->ref_count++;
00128 }
00129
00130 void
00131 exif_entry_unref (ExifEntry *e)
00132 {
00133 if (!e) return;
00134
00135 e->priv->ref_count--;
00136 if (!e->priv->ref_count)
00137 exif_entry_free (e);
00138 }
00139
00140 void
00141 exif_entry_free (ExifEntry *e)
00142 {
00143 if (!e) return;
00144
00145 if (e->priv) {
00146 ExifMem *mem = e->priv->mem;
00147 if (e->data)
00148 exif_mem_free (mem, e->data);
00149 exif_mem_free (mem, e->priv);
00150 exif_mem_free (mem, e);
00151 exif_mem_unref (mem);
00152 }
00153 }
00154
00155 void
00156 exif_entry_fix (ExifEntry *e)
00157 {
00158 unsigned int i;
00159 ExifByteOrder o;
00160 ExifRational r;
00161 ExifSRational sr;
00162
00163 if (!e || !e->priv) return;
00164
00165 switch (e->tag) {
00166
00167
00168 case EXIF_TAG_YCBCR_SUB_SAMPLING:
00169 case EXIF_TAG_SUBJECT_AREA:
00170 case EXIF_TAG_COLOR_SPACE:
00171 case EXIF_TAG_PLANAR_CONFIGURATION:
00172 case EXIF_TAG_SENSING_METHOD:
00173 case EXIF_TAG_ORIENTATION:
00174 case EXIF_TAG_YCBCR_POSITIONING:
00175 case EXIF_TAG_PHOTOMETRIC_INTERPRETATION:
00176 case EXIF_TAG_CUSTOM_RENDERED:
00177 case EXIF_TAG_EXPOSURE_MODE:
00178 case EXIF_TAG_WHITE_BALANCE:
00179 case EXIF_TAG_SCENE_CAPTURE_TYPE:
00180 case EXIF_TAG_GAIN_CONTROL:
00181 case EXIF_TAG_SATURATION:
00182 case EXIF_TAG_CONTRAST:
00183 case EXIF_TAG_SHARPNESS:
00184 switch (e->format) {
00185 case EXIF_FORMAT_LONG:
00186 if (!e->parent || !e->parent->parent) break;
00187 o = exif_data_get_byte_order (e->parent->parent);
00188 for (i = 0; i < e->components; i++)
00189 exif_set_short (
00190 e->data + i *
00191 exif_format_get_size (
00192 EXIF_FORMAT_SHORT), o,
00193 (ExifShort) exif_get_long (
00194 e->data + i *
00195 exif_format_get_size (
00196 EXIF_FORMAT_LONG), o));
00197 e->format = EXIF_FORMAT_SHORT;
00198 e->size = e->components *
00199 exif_format_get_size (e->format);
00200 e->data = exif_entry_realloc (e, e->data, e->size);
00201 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
00202 _("Tag '%s' was of format '%s' (which is "
00203 "against specification) and has been "
00204 "changed to format '%s'."),
00205 exif_tag_get_name (e->tag),
00206 exif_format_get_name (EXIF_FORMAT_LONG),
00207 exif_format_get_name (EXIF_FORMAT_SHORT));
00208 break;
00209 case EXIF_FORMAT_SHORT:
00210 default:
00211 break;
00212 }
00213 break;
00214
00215
00216 case EXIF_TAG_FNUMBER:
00217 case EXIF_TAG_APERTURE_VALUE:
00218 case EXIF_TAG_EXPOSURE_TIME:
00219 case EXIF_TAG_FOCAL_LENGTH:
00220 switch (e->format) {
00221 case EXIF_FORMAT_SRATIONAL:
00222 if (!e->parent || !e->parent->parent) break;
00223 o = exif_data_get_byte_order (e->parent->parent);
00224 for (i = 0; i < e->components; i++) {
00225 sr = exif_get_srational (e->data + i *
00226 exif_format_get_size (
00227 EXIF_FORMAT_SRATIONAL), o);
00228 r.numerator = (ExifLong) sr.numerator;
00229 r.denominator = (ExifLong) sr.denominator;
00230 exif_set_rational (e->data + i *
00231 exif_format_get_size (
00232 EXIF_FORMAT_RATIONAL), o, r);
00233 }
00234 e->format = EXIF_FORMAT_RATIONAL;
00235 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
00236 _("Tag '%s' was of format '%s' (which is "
00237 "against specification) and has been "
00238 "changed to format '%s'."),
00239 exif_tag_get_name (e->tag),
00240 exif_format_get_name (EXIF_FORMAT_SRATIONAL),
00241 exif_format_get_name (EXIF_FORMAT_RATIONAL));
00242 break;
00243 default:
00244 break;
00245 }
00246 break;
00247
00248 case EXIF_TAG_USER_COMMENT:
00249
00250
00251 if (e->format != EXIF_FORMAT_UNDEFINED) {
00252 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
00253 _("Tag 'UserComment' had invalid format '%s'. "
00254 "Format has been set to 'undefined'."),
00255 exif_format_get_name (e->format));
00256 e->format = EXIF_FORMAT_UNDEFINED;
00257 }
00258
00259
00260
00261 if ((e->size >= 8) && (e->data[0] == 0)) {
00262 memcpy(e->data, "\0\0\0\0\0\0\0\0", 8);
00263 }
00264
00265
00266 if (e->size < 8) {
00267 e->data = exif_entry_realloc (e, e->data, 8 + e->size);
00268 if (!e->data) {
00269 e->size = 0;
00270 e->components = 0;
00271 return;
00272 }
00273
00274
00275 memmove (e->data + 8, e->data, e->size);
00276 memcpy (e->data, "ASCII\0\0\0", 8);
00277 e->size += 8;
00278 e->components += 8;
00279 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
00280 _("Tag 'UserComment' has been expanded to at "
00281 "least 8 bytes in order to follow the "
00282 "specification."));
00283 break;
00284 }
00285
00286
00287
00288
00289
00290
00291 for (i = 0; (i < e->size) && !e->data[i]; i++);
00292 if (!i) for ( ; (i < e->size) && (e->data[i] == ' '); i++);
00293 if ((i >= 8) && (i < e->size)) {
00294 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
00295 "Tag 'UserComment' is not empty but does not start with "
00296 "format identifyer. This has been fixed.");
00297 memcpy (e->data, "ASCII\0\0\0", 8);
00298 break;
00299 }
00300
00301
00302
00303
00304
00305 if (memcmp (e->data, "ASCII\0\0\0" , 8) &&
00306 memcmp (e->data, "UNICODE\0" , 8) &&
00307 memcmp (e->data, "JIS\0\0\0\0\0" , 8) &&
00308 memcmp (e->data, "\0\0\0\0\0\0\0\0", 8)) {
00309 e->data = exif_entry_realloc (e, e->data, 8 + e->size);
00310 if (!e->data) {
00311 e->size = 0;
00312 e->components = 0;
00313 break;
00314 }
00315
00316
00317 memmove (e->data + 8, e->data, e->size);
00318 memcpy (e->data, "ASCII\0\0\0", 8);
00319 e->size += 8;
00320 e->components += 8;
00321 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
00322 _("Tag 'UserComment' did not start with "
00323 "format identifier. This has been fixed."));
00324 break;
00325 }
00326
00327 break;
00328 default:
00329 break;
00330 }
00331 }
00332
00333 void
00334 exif_entry_dump (ExifEntry *e, unsigned int indent)
00335 {
00336 char buf[1024];
00337 char value[1024];
00338 unsigned int i;
00339
00340 for (i = 0; i < 2 * indent; i++)
00341 buf[i] = ' ';
00342 buf[i] = '\0';
00343
00344 if (!e)
00345 return;
00346
00347 printf ("%sTag: 0x%x ('%s')\n", buf, e->tag,
00348 exif_tag_get_name (e->tag));
00349 printf ("%s Format: %i ('%s')\n", buf, e->format,
00350 exif_format_get_name (e->format));
00351 printf ("%s Components: %i\n", buf, (int) e->components);
00352 printf ("%s Size: %i\n", buf, e->size);
00353 printf ("%s Value: %s\n", buf, exif_entry_get_value (e, value, sizeof(value)));
00354 }
00355
00356 #define CF(entry,target,v,maxlen) \
00357 { \
00358 if (entry->format != target) { \
00359 exif_entry_log (entry, EXIF_LOG_CODE_CORRUPT_DATA, \
00360 _("The tag '%s' contains data of an invalid " \
00361 "format ('%s', expected '%s')."), \
00362 exif_tag_get_name (entry->tag), \
00363 exif_format_get_name (entry->format), \
00364 exif_format_get_name (target)); \
00365 break; \
00366 } \
00367 }
00368
00369 #define CC(entry,target,v,maxlen) \
00370 { \
00371 if (entry->components != target) { \
00372 exif_entry_log (entry, EXIF_LOG_CODE_CORRUPT_DATA, \
00373 _("The tag '%s' contains an invalid number of " \
00374 "components (%i, expected %i)."), \
00375 exif_tag_get_name (entry->tag), \
00376 (int) entry->components, (int) target); \
00377 break; \
00378 } \
00379 }
00380
00381 static struct {
00382 ExifTag tag;
00383 const char *strings[10];
00384 } list[] = {
00385 { EXIF_TAG_PLANAR_CONFIGURATION,
00386 { N_("chunky format"), N_("planar format"), NULL}},
00387 { EXIF_TAG_SENSING_METHOD,
00388 { "", N_("Not defined"), N_("One-chip color area sensor"),
00389 N_("Two-chip color area sensor"), N_("Three-chip color area sensor"),
00390 N_("Color sequential area sensor"), "", N_("Trilinear sensor"),
00391 N_("Color sequential linear sensor"), NULL}},
00392 { EXIF_TAG_ORIENTATION,
00393 { "", N_("top - left"), N_("top - right"), N_("bottom - right"),
00394 N_("bottom - left"), N_("left - top"), N_("right - top"),
00395 N_("right - bottom"), N_("left - bottom"), NULL}},
00396 { EXIF_TAG_YCBCR_POSITIONING,
00397 { "", N_("centered"), N_("co-sited"), NULL}},
00398 { EXIF_TAG_PHOTOMETRIC_INTERPRETATION, {"", N_("RGB"), N_("YCbCr"), NULL}},
00399 { EXIF_TAG_CUSTOM_RENDERED,
00400 { N_("Normal process"), N_("Custom process"), NULL}},
00401 { EXIF_TAG_EXPOSURE_MODE,
00402 { N_("Auto exposure"), N_("Manual exposure"), N_("Auto bracket"), NULL}},
00403 { EXIF_TAG_WHITE_BALANCE,
00404 { N_("Auto white balance"), N_("Manual white balance"), NULL}},
00405 { EXIF_TAG_SCENE_CAPTURE_TYPE,
00406 { N_("Standard"), N_("Landscape"), N_("Portrait"),
00407 N_("Night scene"), NULL}},
00408 { EXIF_TAG_GAIN_CONTROL,
00409 { N_("Normal"), N_("Low gain up"), N_("High gain up"),
00410 N_("Low gain down"), N_("High gain down"), NULL}},
00411 { EXIF_TAG_SATURATION,
00412 { N_("Normal"), N_("Low saturation"), N_("High saturation"), NULL}},
00413 { EXIF_TAG_CONTRAST , {N_("Normal"), N_("Soft"), N_("Hard"), NULL}},
00414 { EXIF_TAG_SHARPNESS, {N_("Normal"), N_("Soft"), N_("Hard"), NULL}},
00415 { 0, {NULL}}
00416 };
00417
00418 static struct {
00419 ExifTag tag;
00420 struct {
00421 int index;
00422 const char *values[4];
00423 } elem[25];
00424 } list2[] = {
00425 { EXIF_TAG_METERING_MODE,
00426 { { 0, {N_("Unknown"), NULL}},
00427 { 1, {N_("Average"), N_("avg"), NULL}},
00428 { 2, {N_("Center-Weighted Average"), N_("Center-Weight"), NULL}},
00429 { 3, {N_("Spot"), NULL}},
00430 { 4, {N_("Multi Spot"), NULL}},
00431 { 5, {N_("Pattern"), NULL}},
00432 { 6, {N_("Partial"), NULL}},
00433 {255, {N_("Other"), NULL}},
00434 { 0, {NULL}}}},
00435 { EXIF_TAG_COMPRESSION,
00436 { {1, {N_("Uncompressed"), NULL}},
00437 {5, {N_("LZW compression"), NULL}},
00438 {6, {N_("JPEG compression"), NULL}},
00439 {0, {NULL}}}},
00440 { EXIF_TAG_LIGHT_SOURCE,
00441 { { 0, {N_("Unknown"), NULL}},
00442 { 1, {N_("Daylight"), NULL}},
00443 { 2, {N_("Fluorescent"), NULL}},
00444 { 3, {N_("Tungsten incandescent light"), N_("Tungsten"), NULL}},
00445 { 4, {N_("Flash"), NULL}},
00446 { 9, {N_("Fine weather"), NULL}},
00447 { 10, {N_("Cloudy weather"), N_("cloudy"), NULL}},
00448 { 11, {N_("Shade"), NULL}},
00449 { 12, {N_("Daylight fluorescent"), NULL}},
00450 { 13, {N_("Day white fluorescent"), NULL}},
00451 { 14, {N_("Cool white fluorescent"), NULL}},
00452 { 15, {N_("White fluorescent"), NULL}},
00453 { 17, {N_("Standard light A"), NULL}},
00454 { 18, {N_("Standard light B"), NULL}},
00455 { 19, {N_("Standard light C"), NULL}},
00456 { 20, {N_("D55"), NULL}},
00457 { 21, {N_("D65"), NULL}},
00458 { 22, {N_("D75"), NULL}},
00459 { 24, {N_("ISO studio tungsten"),NULL}},
00460 {255, {N_("Other"), NULL}},
00461 { 0, {NULL}}}},
00462 { EXIF_TAG_FOCAL_PLANE_RESOLUTION_UNIT,
00463 { {2, {N_("Inch"), N_("in"), NULL}},
00464 {3, {N_("Centimeter"), N_("cm"), NULL}},
00465 {0, {NULL}}}},
00466 { EXIF_TAG_RESOLUTION_UNIT,
00467 { {2, {N_("Inch"), N_("in"), NULL}},
00468 {3, {N_("Centimeter"), N_("cm"), NULL}},
00469 {0, {NULL}}}},
00470 { EXIF_TAG_EXPOSURE_PROGRAM,
00471 { {0, {N_("Not defined"), NULL}},
00472 {1, {N_("Manual"), NULL}},
00473 {2, {N_("Normal program"), N_("Normal"), NULL}},
00474 {3, {N_("Aperture priority"), N_("Aperture"), NULL}},
00475 {4, {N_("Shutter priority"),N_("Shutter"), NULL}},
00476 {5, {N_("Creative program (biased toward depth of field)"),
00477 N_("Creative"), NULL}},
00478 {6, {N_("Creative program (biased toward fast shutter speed)"),
00479 N_("Action"), NULL}},
00480 {7, {N_("Portrait mode (for closeup photos with the background out "
00481 "of focus)"), N_("Portrait"), NULL}},
00482 {8, {N_("Landscape mode (for landscape photos with the background "
00483 "in focus)"), N_("Landscape"), NULL}},
00484 {0, {NULL}}}},
00485 { EXIF_TAG_FLASH,
00486 { {0x0000, {N_("Flash did not fire."), N_("no flash"), NULL}},
00487 {0x0001, {N_("Flash fired."), N_("flash"), N_("Yes"), NULL}},
00488 {0x0005, {N_("Strobe return light not detected."), N_("W/o strobe"),
00489 NULL}},
00490 {0x0007, {N_("Strobe return light detected."), N_("W. strobe"), NULL}},
00491 {0x0009, {N_("Flash fired, compulsatory flash mode"), NULL}},
00492 {0x000d, {N_("Flash fired, compulsatory flash mode, return light "
00493 "not detected."), NULL}},
00494 {0x000f, {N_("Flash fired, compulsatory flash mode, return light "
00495 "detected."), NULL}},
00496 {0x0010, {N_("Flash did not fire, compulsatory flash mode."), NULL}},
00497 {0x0018, {N_("Flash did not fire, auto mode."), NULL}},
00498 {0x0019, {N_("Flash fired, auto mode."), NULL}},
00499 {0x001d, {N_("Flash fired, auto mode, return light not detected."),
00500 NULL}},
00501 {0x001f, {N_("Flash fired, auto mode, return light detected."), NULL}},
00502 {0x0020, {N_("No flash function."),NULL}},
00503 {0x0041, {N_("Flash fired, red-eye reduction mode."), NULL}},
00504 {0x0045, {N_("Flash fired, red-eye reduction mode, return light "
00505 "not detected."), NULL}},
00506 {0x0047, {N_("Flash fired, red-eye reduction mode, return light "
00507 "detected."), NULL}},
00508 {0x0049, {N_("Flash fired, compulsory flash mode, red-eye reduction "
00509 "mode."), NULL}},
00510 {0x004d, {N_("Flash fired, compulsory flash mode, red-eye reduction "
00511 "mode, return light not detected"), NULL}},
00512 {0x004f, {N_("Flash fired, compulsory flash mode, red-eye reduction, "
00513 "return light detected"), NULL}},
00514 {0x0058, {N_("Flash did not fire, auto mode, red-eye reduction mode"), NULL}},
00515 {0x0059, {N_("Flash fired, auto mode, red-eye reduction mode"), NULL}},
00516 {0x005d, {N_("Flash fired, auto mode, return light not detected, "
00517 "red-eye reduction mode."), NULL}},
00518 {0x005f, {N_("Flash fired, auto mode, return light detected, "
00519 "red-eye reduction mode."), NULL}},
00520 {0x0000, {NULL}}}},
00521 {EXIF_TAG_SUBJECT_DISTANCE_RANGE,
00522 { {0, {N_("Unknown"), N_("?"), NULL}},
00523 {1, {N_("Macro"), NULL}},
00524 {2, {N_("Close view"), N_("close"), NULL}},
00525 {3, {N_("Distant view"), N_("distant"), NULL}},
00526 {0, {NULL}}}},
00527 { EXIF_TAG_COLOR_SPACE,
00528 { {1, {N_("sRGB"), NULL}},
00529 {2, {N_("Adobe RGB"), NULL}},
00530 {0xffff, {N_("Uncalibrated"), NULL}}}},
00531 {0, }
00532 };
00533
00534 const char *
00535 exif_entry_get_value (ExifEntry *e, char *val, unsigned int maxlen)
00536 {
00537 unsigned int i, j, k, l, ts;
00538 const unsigned char *t;
00539 ExifByte v_byte;
00540 ExifShort v_short, v_short2, v_short3, v_short4;
00541 ExifLong v_long;
00542 ExifSLong v_slong;
00543 ExifRational v_rat;
00544 ExifSRational v_srat;
00545 char b[64];
00546 const char *c;
00547 ExifByteOrder o;
00548 double d;
00549 ExifEntry *entry;
00550 static struct {
00551 char *label;
00552 char major, minor;
00553 } versions[] = {
00554 {"0110", 1, 1},
00555 {"0120", 1, 2},
00556 {"0200", 2, 0},
00557 {"0210", 2, 1},
00558 {"0220", 2, 2},
00559 {"0221", 2, 21},
00560 {NULL , 0, 0}
00561 };
00562
00563
00564
00565
00566
00567
00568
00569
00570 bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
00571
00572
00573 if (!e || !e->parent || !e->parent->parent)
00574 return val;
00575 o = exif_data_get_byte_order (e->parent->parent);
00576
00577 memset (val, 0, maxlen);
00578 memset (b, 0, sizeof (b));
00579 maxlen--;
00580
00581
00582 if (e->size != e->components * exif_format_get_size (e->format)) {
00583 snprintf (val, maxlen, _("Invalid size of entry (%i, "
00584 "expected %li x %i)."), e->size, e->components,
00585 exif_format_get_size (e->format));
00586 return val;
00587 }
00588
00589 switch (e->tag) {
00590 case EXIF_TAG_USER_COMMENT:
00591
00592
00593
00594
00595
00596
00597
00598 if ((e->format != EXIF_FORMAT_ASCII) ||
00599 (e->size <= 8) ||
00600 ( memcmp (e->data, "ASCII\0\0\0" , 8) &&
00601 memcmp (e->data, "UNICODE\0" , 8) &&
00602 memcmp (e->data, "JIS\0\0\0\0\0", 8) &&
00603 memcmp (e->data, "\0\0\0\0\0\0\0\0", 8)))
00604 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
00605
00606
00607
00608
00609
00610
00611 if ((e->size >= 8) && !memcmp (e->data, "ASCII\0\0\0", 8)) {
00612 strncpy (val, (char *) e->data + 8, MIN (e->size - 8, maxlen));
00613 break;
00614 }
00615 if ((e->size >= 8) && !memcmp (e->data, "UNICODE\0", 8)) {
00616 strncpy (val, _("Unsupported UNICODE string"), maxlen);
00617 break;
00618 }
00619 if ((e->size >= 8) && !memcmp (e->data, "JIS\0\0\0\0\0", 8)) {
00620 strncpy (val, _("Unsupported JIS string"), maxlen);
00621 break;
00622 }
00623
00624
00625 for (i = 0; (i < e->size) &&
00626 (!e->data[i] || (e->data[i] == ' ')); i++);
00627 if (i == e->size) break;
00628
00629
00630
00631
00632
00633
00634 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
00635 _("Tag UserComment does not comply "
00636 "with standard but contains data."));
00637 for (; (i < e->size) && (strlen (val) < maxlen - 1); i++) {
00638 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
00639 _("Byte at position %i: 0x%02x"), i, e->data[i]);
00640 val[strlen (val)] =
00641 isprint (e->data[i]) ? e->data[i] : '.';
00642 }
00643 break;
00644
00645 case EXIF_TAG_EXIF_VERSION:
00646 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
00647 CC (e, 4, val, maxlen);
00648 strncpy (val, _("Unknown Exif Version"), maxlen);
00649 for (i = 0; versions[i].label; i++) {
00650 if (!memcmp (e->data, versions[i].label, 4)) {
00651 snprintf (val, maxlen,
00652 _("Exif Version %d.%d"),
00653 versions[i].major,
00654 versions[i].minor);
00655 break;
00656 }
00657 }
00658 break;
00659 case EXIF_TAG_FLASH_PIX_VERSION:
00660 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
00661 CC (e, 4, val, maxlen);
00662 if (!memcmp (e->data, "0100", 4))
00663 strncpy (val, _("FlashPix Version 1.0"), maxlen);
00664 else if (!memcmp (e->data, "0101", 4))
00665 strncpy (val, _("FlashPix Version 1.01"), maxlen);
00666 else
00667 strncpy (val, _("Unknown FlashPix Version"), maxlen);
00668 break;
00669 case EXIF_TAG_COPYRIGHT:
00670 CF (e, EXIF_FORMAT_ASCII, val, maxlen);
00671
00672
00673
00674
00675
00676 if (e->size && e->data &&
00677 (strspn ((char *)e->data, " ") != strlen ((char *) e->data)))
00678 strncpy (val, (char *) e->data, MIN (maxlen, e->size));
00679 else
00680 strncpy (val, _("[None]"), maxlen);
00681 strncat (val, " ", maxlen - strlen (val));
00682 strncat (val, _("(Photographer)"), maxlen - strlen (val));
00683
00684
00685 strncat (val, " - ", maxlen - strlen (val));
00686 if (e->size && e->data) {
00687 t = e->data + strlen ((char *) e->data) + 1;
00688 ts = e->data + e->size - t;
00689 if ((ts > 0) && (strspn ((char *)t, " ") != ts))
00690 strncat (val, (char *)t, MIN (maxlen - strlen (val), ts));
00691 } else {
00692 strncat (val, _("[None]"), maxlen - strlen (val));
00693 }
00694 strncat (val, " ", maxlen - strlen (val));
00695 strncat (val, _("(Editor)"), maxlen - strlen (val));
00696
00697 break;
00698 case EXIF_TAG_FNUMBER:
00699 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
00700 CC (e, 1, val, maxlen);
00701 v_rat = exif_get_rational (e->data, o);
00702 if (!v_rat.denominator) return val;
00703 snprintf (val, maxlen, "f/%.01f", (float) v_rat.numerator /
00704 (float) v_rat.denominator);
00705 break;
00706 case EXIF_TAG_APERTURE_VALUE:
00707 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
00708 CC (e, 1, val, maxlen);
00709 v_rat = exif_get_rational (e->data, o);
00710 if (!v_rat.denominator) return val;
00711 snprintf (val, maxlen, "f/%.01f",
00712 pow (2 , ((float) v_rat.numerator /
00713 (float) v_rat.denominator) / 2.));
00714 break;
00715 case EXIF_TAG_FOCAL_LENGTH:
00716 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
00717 CC (e, 1, val, maxlen);
00718 v_rat = exif_get_rational (e->data, o);
00719 if (!v_rat.denominator) return val;
00720
00721
00722
00723
00724
00725
00726 d = 0.;
00727 entry = exif_content_get_entry (
00728 e->parent->parent->ifd[EXIF_IFD_0], EXIF_TAG_MAKE);
00729 if (entry && entry->data &&
00730 !strncmp ((char *)entry->data, "Minolta", 7)) {
00731 entry = exif_content_get_entry (
00732 e->parent->parent->ifd[EXIF_IFD_0],
00733 EXIF_TAG_MODEL);
00734 if (entry && entry->data) {
00735 if (!strncmp ((char *)entry->data, "DiMAGE 7", 8))
00736 d = 3.9;
00737 else if (!strncmp ((char *)entry->data, "DiMAGE 5", 8))
00738 d = 4.9;
00739 }
00740 }
00741 if (d)
00742 snprintf (b, sizeof (b), _(" (35 equivalent: %d mm)"),
00743 (int) (d * (double) v_rat.numerator /
00744 (double) v_rat.denominator));
00745
00746 snprintf (val, maxlen, "%.1f mm",
00747 (float) v_rat.numerator / (float) v_rat.denominator);
00748 if (maxlen > strlen (val) + strlen (b))
00749 strncat (val, b, maxlen - strlen (val) - 1);
00750 break;
00751 case EXIF_TAG_SUBJECT_DISTANCE:
00752 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
00753 CC (e, 1, val, maxlen);
00754 v_rat = exif_get_rational (e->data, o);
00755 if (!v_rat.denominator) return val;
00756 snprintf (val, maxlen, "%.1f m", (float) v_rat.numerator /
00757 (float) v_rat.denominator);
00758 break;
00759 case EXIF_TAG_EXPOSURE_TIME:
00760 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
00761 CC (e, 1, val, maxlen);
00762 v_rat = exif_get_rational (e->data, o);
00763 if (!v_rat.denominator) return val;
00764 d = (double) v_rat.numerator / (double) v_rat.denominator;
00765 if (d < 1)
00766 snprintf (val, maxlen, _("1/%d"),
00767 (int) (1. / d));
00768 else
00769 snprintf (val, maxlen, _("%d"), (int) d);
00770 if (maxlen > strlen (val) + strlen (_(" sec.")))
00771 strncat (val, _(" sec."), maxlen - strlen (val) - 1);
00772 break;
00773 case EXIF_TAG_SHUTTER_SPEED_VALUE:
00774 CF (e, EXIF_FORMAT_SRATIONAL, val, maxlen);
00775 CC (e, 1, val, maxlen);
00776 v_srat = exif_get_srational (e->data, o);
00777 if (!v_srat.denominator) return val;
00778 snprintf (val, maxlen, "%.0f/%.0f", (float) v_srat.numerator,
00779 (float) v_srat.denominator);
00780 if (maxlen > strlen (val) + strlen (_(" sec.")))
00781 strncat (val, _(" sec."), maxlen - strlen (val) - 1);
00782 snprintf (b, sizeof (b), " (APEX: %i)",
00783 (int) pow (sqrt(2), (float) v_srat.numerator /
00784 (float) v_srat.denominator));
00785 if (maxlen > strlen (val) + strlen (b))
00786 strncat (val, b, maxlen - strlen (val) - 1);
00787 break;
00788 case EXIF_TAG_BRIGHTNESS_VALUE:
00789 CF (e, EXIF_FORMAT_SRATIONAL, val, maxlen);
00790 CC (e, 1, val, maxlen);
00791 v_srat = exif_get_srational (e->data, o);
00792 snprintf (val, maxlen, "%i/%i", (int) v_srat.numerator,
00793 (int) v_srat.denominator);
00794
00795 break;
00796 case EXIF_TAG_FILE_SOURCE:
00797 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
00798 CC (e, 1, val, maxlen);
00799 switch (e->data[0]) {
00800 case 0x03: strncpy (val, _("DSC"), maxlen); break;
00801 default: snprintf (val, maxlen, "0x%02x", e->data[0]); break;
00802 }
00803 break;
00804 case EXIF_TAG_COMPONENTS_CONFIGURATION:
00805 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
00806 CC (e, 4, val, maxlen);
00807 for (i = 0; i < 4; i++) {
00808 switch (e->data[i]) {
00809 case 0: c = _("-"); break;
00810 case 1: c = _("Y"); break;
00811 case 2: c = _("Cb"); break;
00812 case 3: c = _("Cr"); break;
00813 case 4: c = _("R"); break;
00814 case 5: c = _("G"); break;
00815 case 6: c = _("B"); break;
00816 default: c = _("reserved"); break;
00817 }
00818 strncat (val, c, maxlen - strlen (val));
00819 if (i < 3) strncat (val, " ", maxlen - strlen (val));
00820 }
00821 break;
00822 case EXIF_TAG_EXPOSURE_BIAS_VALUE:
00823 CF (e, EXIF_FORMAT_SRATIONAL, val, maxlen);
00824 CC (e, 1, val, maxlen);
00825 v_srat = exif_get_srational (e->data, o);
00826 if (!v_srat.denominator) return val;
00827 snprintf (val, maxlen, "%s%.01f",
00828 v_srat.denominator * v_srat.numerator > 0 ? "+" : "",
00829 (double) v_srat.numerator /
00830 (double) v_srat.denominator);
00831 break;
00832 case EXIF_TAG_YCBCR_SUB_SAMPLING:
00833 CF (e, EXIF_FORMAT_SHORT, val, maxlen);
00834 CC (e, 2, val, maxlen);
00835 v_short = exif_get_short (e->data, o);
00836 v_short2 = exif_get_short (
00837 e->data + exif_format_get_size (e->format),
00838 o);
00839 if ((v_short == 2) && (v_short2 == 1))
00840 strncpy (val, _("YCbCr4:2:2"), maxlen);
00841 else if ((v_short == 2) && (v_short2 == 2))
00842 strncpy (val, _("YCbCr4:2:0"), maxlen);
00843 else
00844 snprintf (val, maxlen, "%i, %i", v_short, v_short2);
00845 break;
00846 case EXIF_TAG_MAKER_NOTE:
00847 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
00848 snprintf (val, maxlen, _("%i bytes unknown data"),
00849 (int) e->components);
00850 break;
00851 case EXIF_TAG_SUBJECT_AREA:
00852 CF (e, EXIF_FORMAT_SHORT, val, maxlen);
00853 switch (e->components) {
00854 case 2:
00855 v_short = exif_get_short (e->data, o);
00856 v_short2 = exif_get_short (e->data + 2, o);
00857 snprintf (val, maxlen, "(x,y) = (%i,%i)",
00858 v_short, v_short2);
00859 break;
00860 case 3:
00861 v_short = exif_get_short (e->data, o);
00862 v_short2 = exif_get_short (e->data + 2, o);
00863 v_short3 = exif_get_short (e->data + 4, o);
00864 snprintf (val, maxlen, _("Within distance %i of "
00865 "(x,y) = (%i,%i)"), v_short3, v_short,
00866 v_short2);
00867 break;
00868 case 4:
00869 v_short = exif_get_short (e->data, o);
00870 v_short2 = exif_get_short (e->data + 2, o);
00871 v_short3 = exif_get_short (e->data + 4, o);
00872 v_short4 = exif_get_short (e->data + 6, o);
00873 snprintf (val, maxlen, _("Within rectangle "
00874 "(width %i, height %i) around "
00875 "(x,y) = (%i,%i)"), v_short3, v_short4,
00876 v_short, v_short2);
00877 break;
00878 default:
00879 snprintf (val, maxlen, _("Unexpected number "
00880 "of components (%li, expected 2, 3, or 4)."),
00881 e->components);
00882 }
00883 break;
00884
00885 case EXIF_TAG_METERING_MODE:
00886 case EXIF_TAG_COMPRESSION:
00887 case EXIF_TAG_FOCAL_PLANE_RESOLUTION_UNIT:
00888 case EXIF_TAG_RESOLUTION_UNIT:
00889 case EXIF_TAG_EXPOSURE_PROGRAM:
00890 case EXIF_TAG_FLASH:
00891 case EXIF_TAG_SUBJECT_DISTANCE_RANGE:
00892 case EXIF_TAG_COLOR_SPACE:
00893 CF (e,EXIF_FORMAT_SHORT, val, maxlen);
00894 CC (e, 1, val, maxlen);
00895 v_short = exif_get_short (e->data, o);
00896
00897
00898 for (i = 0; list2[i].tag && (list2[i].tag != e->tag); i++);
00899 if (!list2[i].tag) {
00900 strncpy (val, _("Internal error."), maxlen - 1);
00901 break;
00902 }
00903
00904
00905 for (j = 0; list2[i].elem[j].values &&
00906 (list2[i].elem[j].index < v_short); j++);
00907 if (list2[i].elem[j].index != v_short) {
00908 snprintf (val, maxlen, _("Internal error (unknown "
00909 "value %i)."), v_short);
00910 break;
00911 }
00912
00913
00914 memset (val, 0, maxlen);
00915 for (k = 0; list2[i].elem[j].values &&
00916 list2[i].elem[j].values[k]; k++) {
00917 l = strlen (_(list2[i].elem[j].values[k]));
00918 if ((maxlen > l) && (strlen (val) < l))
00919 strncpy (val, _(list2[i].elem[j].values[k]), maxlen - 1);
00920 }
00921 if (!strlen (val)) snprintf (val, maxlen, "%i", v_short);
00922
00923 break;
00924 case EXIF_TAG_PLANAR_CONFIGURATION:
00925 case EXIF_TAG_SENSING_METHOD:
00926 case EXIF_TAG_ORIENTATION:
00927 case EXIF_TAG_YCBCR_POSITIONING:
00928 case EXIF_TAG_PHOTOMETRIC_INTERPRETATION:
00929 case EXIF_TAG_CUSTOM_RENDERED:
00930 case EXIF_TAG_EXPOSURE_MODE:
00931 case EXIF_TAG_WHITE_BALANCE:
00932 case EXIF_TAG_SCENE_CAPTURE_TYPE:
00933 case EXIF_TAG_GAIN_CONTROL:
00934 case EXIF_TAG_SATURATION:
00935 case EXIF_TAG_CONTRAST:
00936 case EXIF_TAG_SHARPNESS:
00937 CF (e, EXIF_FORMAT_SHORT, val, maxlen);
00938 CC (e, 1, val, maxlen);
00939 v_short = exif_get_short (e->data, o);
00940
00941
00942 for (i = 0; list[i].tag && (list[i].tag != e->tag); i++);
00943 if (!list[i].tag) {
00944 strncpy (val, _("Internal error."), maxlen - 1);
00945 break;
00946 }
00947
00948
00949 for (j = 0; list[i].strings[j] && (j < v_short); j++);
00950 if (!list[i].strings[j])
00951 snprintf (val, maxlen, "%i", v_short);
00952 else
00953 strncpy (val, _(list[i].strings[j]), maxlen - 1);
00954 break;
00955 default:
00956 if (!e->components) break;
00957 switch (e->format) {
00958 case EXIF_FORMAT_UNDEFINED:
00959 break;
00960 case EXIF_FORMAT_BYTE:
00961 case EXIF_FORMAT_SBYTE:
00962 v_byte = e->data[0];
00963 snprintf (val, maxlen, "0x%02x", v_byte);
00964 maxlen -= strlen (val);
00965 for (i = 1; i < e->components; i++) {
00966 v_byte = e->data[i];
00967 snprintf (b, sizeof (b), ", 0x%02x", v_byte);
00968 strncat (val, b, maxlen);
00969 maxlen -= strlen (b);
00970 if ((signed)maxlen <= 0) break;
00971 }
00972 break;
00973 case EXIF_FORMAT_SHORT:
00974 case EXIF_FORMAT_SSHORT:
00975 v_short = exif_get_short (e->data, o);
00976 snprintf (val, maxlen, "%i", v_short);
00977 maxlen -= strlen (val);
00978 for (i = 1; i < e->components; i++) {
00979 v_short = exif_get_short (e->data +
00980 exif_format_get_size (e->format) *
00981 i, o);
00982 snprintf (b, sizeof (b), ", %i", v_short);
00983 strncat (val, b, maxlen);
00984 maxlen -= strlen (b);
00985 if ((signed)maxlen <= 0) break;
00986 }
00987 break;
00988 case EXIF_FORMAT_LONG:
00989 v_long = exif_get_long (e->data, o);
00990 snprintf (val, maxlen, "%li", (long int) v_long);
00991 maxlen -= strlen (val);
00992 for (i = 1; i < e->components; i++) {
00993 v_long = exif_get_long (e->data +
00994 exif_format_get_size (e->format) *
00995 i, o);
00996 snprintf (b, sizeof (b), ", %li",
00997 (long int) v_long);
00998 strncat (val, b, maxlen);
00999 maxlen -= strlen (b);
01000 if ((signed)maxlen <= 0) break;
01001 }
01002 break;
01003 case EXIF_FORMAT_SLONG:
01004 v_slong = exif_get_slong (e->data, o);
01005 snprintf (val, maxlen, "%li", (long int) v_slong);
01006 maxlen -= strlen (val);
01007 for (i = 1; i < e->components; i++) {
01008 v_long = exif_get_slong (e->data +
01009 exif_format_get_size (e->format) *
01010 i, o);
01011 snprintf (b, sizeof (b), ", %li",
01012 (long int) v_long);
01013 strncat (val, b, maxlen);
01014 maxlen -= strlen (b);
01015 if ((signed)maxlen <= 0) break;
01016 }
01017 break;
01018 case EXIF_FORMAT_ASCII:
01019 strncpy (val, (char *) e->data, MIN (maxlen, e->size));
01020 break;
01021 case EXIF_FORMAT_RATIONAL:
01022 v_rat = exif_get_rational (e->data, o);
01023 if (v_rat.denominator) {
01024 snprintf (val, maxlen, "%2.2f", (double)v_rat.numerator / v_rat.denominator);
01025 } else {
01026 snprintf (val, maxlen, "%i/%i", v_rat.numerator, v_rat.denominator);
01027 }
01028 maxlen -= strlen (val);
01029 for (i = 1; i < e->components; i++) {
01030 v_rat = exif_get_rational (
01031 e->data + 8 * i, o);
01032 snprintf (b, sizeof (b), ", %2.2f",
01033 (double)v_rat.numerator / v_rat.denominator);
01034 strncat (val, b, maxlen);
01035 maxlen -= strlen (b);
01036 if ((signed)maxlen <= 0) break;
01037 }
01038 break;
01039 case EXIF_FORMAT_SRATIONAL:
01040 v_srat = exif_get_srational (e->data, o);
01041 if (v_srat.denominator) {
01042 snprintf (val, maxlen, "%2.2f", (double)v_srat.numerator / v_srat.denominator);
01043 } else {
01044 snprintf (val, maxlen, "%i/%i", v_srat.numerator, v_srat.denominator);
01045 }
01046 maxlen -= strlen (val);
01047 for (i = 1; i < e->components; i++) {
01048 v_srat = exif_get_srational (
01049 e->data + 8 * i, o);
01050 snprintf (b, sizeof (b), ", %2.2f",
01051 (double)v_srat.numerator / v_srat.denominator);
01052 strncat (val, b, maxlen);
01053 maxlen -= strlen (b);
01054 if ((signed) maxlen <= 0) break;
01055 }
01056 break;
01057 case EXIF_FORMAT_DOUBLE:
01058 case EXIF_FORMAT_FLOAT:
01059 default:
01060
01061 break;
01062 }
01063 }
01064
01065 return val;
01066 }
01067
01068 void
01069 exif_entry_initialize (ExifEntry *e, ExifTag tag)
01070 {
01071 time_t t;
01072 struct tm *tm;
01073 ExifRational r;
01074 ExifByteOrder o;
01075
01076
01077 if (!e || !e->parent || e->data || !e->parent->parent)
01078 return;
01079 o = exif_data_get_byte_order (e->parent->parent);
01080
01081 e->tag = tag;
01082 switch (tag) {
01083
01084
01085 case EXIF_TAG_PIXEL_X_DIMENSION:
01086 case EXIF_TAG_PIXEL_Y_DIMENSION:
01087 case EXIF_TAG_EXIF_IFD_POINTER:
01088 case EXIF_TAG_GPS_INFO_IFD_POINTER:
01089 case EXIF_TAG_INTEROPERABILITY_IFD_POINTER:
01090 case EXIF_TAG_JPEG_INTERCHANGE_FORMAT_LENGTH:
01091 case EXIF_TAG_JPEG_INTERCHANGE_FORMAT:
01092 e->components = 1;
01093 e->format = EXIF_FORMAT_LONG;
01094 e->size = exif_format_get_size (e->format) * e->components;
01095 e->data = exif_entry_alloc (e, e->size);
01096 break;
01097
01098
01099 case EXIF_TAG_SUBJECT_LOCATION:
01100 case EXIF_TAG_SENSING_METHOD:
01101 case EXIF_TAG_PHOTOMETRIC_INTERPRETATION:
01102 case EXIF_TAG_COMPRESSION:
01103 case EXIF_TAG_EXPOSURE_MODE:
01104 case EXIF_TAG_WHITE_BALANCE:
01105 case EXIF_TAG_FOCAL_LENGTH_IN_35MM_FILM:
01106 case EXIF_TAG_GAIN_CONTROL:
01107 case EXIF_TAG_SUBJECT_DISTANCE_RANGE:
01108
01109
01110 case EXIF_TAG_IMAGE_WIDTH:
01111 case EXIF_TAG_IMAGE_LENGTH:
01112 case EXIF_TAG_EXPOSURE_PROGRAM:
01113 case EXIF_TAG_LIGHT_SOURCE:
01114 case EXIF_TAG_METERING_MODE:
01115 case EXIF_TAG_CUSTOM_RENDERED:
01116 case EXIF_TAG_SCENE_CAPTURE_TYPE:
01117 case EXIF_TAG_CONTRAST:
01118 case EXIF_TAG_SATURATION:
01119 case EXIF_TAG_SHARPNESS:
01120 e->components = 1;
01121 e->format = EXIF_FORMAT_SHORT;
01122 e->size = exif_format_get_size (e->format) * e->components;
01123 e->data = exif_entry_alloc (e, e->size);
01124 exif_set_short (e->data, o, 0);
01125 break;
01126
01127
01128 case EXIF_TAG_ORIENTATION:
01129 case EXIF_TAG_PLANAR_CONFIGURATION:
01130 case EXIF_TAG_YCBCR_POSITIONING:
01131 e->components = 1;
01132 e->format = EXIF_FORMAT_SHORT;
01133 e->size = exif_format_get_size (e->format) * e->components;
01134 e->data = exif_entry_alloc (e, e->size);
01135 exif_set_short (e->data, o, 1);
01136 break;
01137
01138
01139 case EXIF_TAG_RESOLUTION_UNIT:
01140 case EXIF_TAG_FOCAL_PLANE_RESOLUTION_UNIT:
01141 e->components = 1;
01142 e->format = EXIF_FORMAT_SHORT;
01143 e->size = exif_format_get_size (e->format) * e->components;
01144 e->data = exif_entry_alloc (e, e->size);
01145 exif_set_short (e->data, o, 2);
01146 break;
01147
01148
01149 case EXIF_TAG_SAMPLES_PER_PIXEL:
01150 e->components = 1;
01151 e->format = EXIF_FORMAT_SHORT;
01152 e->size = exif_format_get_size (e->format) * e->components;
01153 e->data = exif_entry_alloc (e, e->size);
01154 exif_set_short (e->data, o, 3);
01155 break;
01156
01157 case EXIF_TAG_BITS_PER_SAMPLE:
01158 e->components = 3;
01159 e->format = EXIF_FORMAT_SHORT;
01160 e->size = exif_format_get_size (e->format) * e->components;
01161 e->data = exif_entry_alloc (e, e->size);
01162 if (!e->data) break;
01163 exif_set_short (e->data, o, 8);
01164 exif_set_short (
01165 e->data + exif_format_get_size (e->format),
01166 o, 8);
01167 exif_set_short (
01168 e->data + 2 * exif_format_get_size (e->format),
01169 o, 8);
01170 break;
01171 case EXIF_TAG_YCBCR_SUB_SAMPLING:
01172 e->components = 2;
01173 e->format = EXIF_FORMAT_SHORT;
01174 e->size = exif_format_get_size (e->format) * e->components;
01175 e->data = exif_entry_alloc (e, e->size);
01176 if (!e->data) break;
01177 exif_set_short (e->data, o, 2);
01178 exif_set_short (
01179 e->data + exif_format_get_size (e->format),
01180 o, 1);
01181 break;
01182
01183
01184 case EXIF_TAG_EXPOSURE_BIAS_VALUE:
01185 case EXIF_TAG_BRIGHTNESS_VALUE:
01186 case EXIF_TAG_SHUTTER_SPEED_VALUE:
01187 e->components = 1;
01188 e->format = EXIF_FORMAT_SRATIONAL;
01189 e->size = exif_format_get_size (e->format) * e->components;
01190 e->data = exif_entry_alloc (e, e->size);
01191 break;
01192
01193
01194 case EXIF_TAG_EXPOSURE_TIME:
01195 case EXIF_TAG_FOCAL_PLANE_X_RESOLUTION:
01196 case EXIF_TAG_FOCAL_PLANE_Y_RESOLUTION:
01197 case EXIF_TAG_EXPOSURE_INDEX:
01198 case EXIF_TAG_FLASH_ENERGY:
01199 case EXIF_TAG_FNUMBER:
01200 case EXIF_TAG_FOCAL_LENGTH:
01201 case EXIF_TAG_SUBJECT_DISTANCE:
01202 case EXIF_TAG_MAX_APERTURE_VALUE:
01203 case EXIF_TAG_APERTURE_VALUE:
01204 case EXIF_TAG_COMPRESSED_BITS_PER_PIXEL:
01205 case EXIF_TAG_PRIMARY_CHROMATICITIES:
01206 case EXIF_TAG_DIGITAL_ZOOM_RATIO:
01207 e->components = 1;
01208 e->format = EXIF_FORMAT_RATIONAL;
01209 e->size = exif_format_get_size (e->format) * e->components;
01210 e->data = exif_entry_alloc (e, e->size);
01211 break;
01212
01213
01214 case EXIF_TAG_X_RESOLUTION:
01215 case EXIF_TAG_Y_RESOLUTION:
01216 e->components = 1;
01217 e->format = EXIF_FORMAT_RATIONAL;
01218 e->size = exif_format_get_size (e->format) * e->components;
01219 e->data = exif_entry_alloc (e, e->size);
01220 r.numerator = 72;
01221 r.denominator = 1;
01222 exif_set_rational (e->data, o, r);
01223 break;
01224
01225
01226 case EXIF_TAG_WHITE_POINT:
01227 e->components = 2;
01228 e->format = EXIF_FORMAT_RATIONAL;
01229 e->size = exif_format_get_size (e->format) * e->components;
01230 e->data = exif_entry_alloc (e, e->size);
01231 break;
01232
01233
01234 case EXIF_TAG_REFERENCE_BLACK_WHITE:
01235 e->components = 6;
01236 e->format = EXIF_FORMAT_RATIONAL;
01237 e->size = exif_format_get_size (e->format) * e->components;
01238 e->data = exif_entry_alloc (e, e->size);
01239 if (!e->data) break;
01240 r.denominator = 1;
01241 r.numerator = 0;
01242 exif_set_rational (e->data, o, r);
01243 r.numerator = 255;
01244 exif_set_rational (
01245 e->data + exif_format_get_size (e->format), o, r);
01246 r.numerator = 0;
01247 exif_set_rational (
01248 e->data + 2 * exif_format_get_size (e->format), o, r);
01249 r.numerator = 255;
01250 exif_set_rational (
01251 e->data + 3 * exif_format_get_size (e->format), o, r);
01252 r.numerator = 0;
01253 exif_set_rational (
01254 e->data + 4 * exif_format_get_size (e->format), o, r);
01255 r.numerator = 255;
01256 exif_set_rational (
01257 e->data + 5 * exif_format_get_size (e->format), o, r);
01258 break;
01259
01260
01261 case EXIF_TAG_DATE_TIME:
01262 case EXIF_TAG_DATE_TIME_ORIGINAL:
01263 case EXIF_TAG_DATE_TIME_DIGITIZED:
01264 t = time (NULL);
01265 tm = localtime (&t);
01266 e->components = 20;
01267 e->format = EXIF_FORMAT_ASCII;
01268 e->size = exif_format_get_size (e->format) * e->components;
01269 e->data = exif_entry_alloc (e, e->size);
01270 if (!e->data) break;
01271 snprintf ((char *) e->data, e->size,
01272 "%04i:%02i:%02i %02i:%02i:%02i",
01273 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
01274 tm->tm_hour, tm->tm_min, tm->tm_sec);
01275 break;
01276
01277
01278 case EXIF_TAG_SUB_SEC_TIME:
01279 case EXIF_TAG_SUB_SEC_TIME_ORIGINAL:
01280 case EXIF_TAG_SUB_SEC_TIME_DIGITIZED:
01281 e->components = 0;
01282 e->format = EXIF_FORMAT_ASCII;
01283 e->size = 0;
01284 e->data = NULL;
01285 break;
01286 case EXIF_TAG_IMAGE_DESCRIPTION:
01287 case EXIF_TAG_MAKE:
01288 case EXIF_TAG_MODEL:
01289 case EXIF_TAG_SOFTWARE:
01290 case EXIF_TAG_ARTIST:
01291 e->components = strlen (_("[None]")) + 1;
01292 e->format = EXIF_FORMAT_ASCII;
01293 e->size = exif_format_get_size (e->format) * e->components;
01294 e->data = exif_entry_alloc (e, e->size);
01295 if (!e->data) break;
01296 strncpy ((char *)e->data, _("[None]"), e->size);
01297 break;
01298 case EXIF_TAG_COPYRIGHT:
01299 e->components = (strlen (_("[None]")) + 1) * 2;
01300 e->format = EXIF_FORMAT_ASCII;
01301 e->size = exif_format_get_size (e->format) * e->components;
01302 e->data = exif_entry_alloc (e, e->size);
01303 if (!e->data) break;
01304 strcpy (((char *)e->data) + 0, _("[None]"));
01305 strcpy (((char *)e->data) + strlen (_("[None]")) + 1, _("[None]"));
01306 break;
01307
01308
01309 case EXIF_TAG_MAKER_NOTE:
01310 case EXIF_TAG_USER_COMMENT:
01311 e->components = 0;
01312 e->format = EXIF_FORMAT_UNDEFINED;
01313 e->size = 0;
01314 e->data = NULL;
01315 break;
01316
01317
01318 case EXIF_TAG_SCENE_TYPE:
01319 e->components = 1;
01320 e->format = EXIF_FORMAT_UNDEFINED;
01321 e->size = exif_format_get_size (e->format) * e->components;
01322 e->data = exif_entry_alloc (e, e->size);
01323 if (!e->data) break;
01324 e->data[0] = 0x01;
01325 break;
01326
01327
01328 case EXIF_TAG_FILE_SOURCE:
01329 e->components = 1;
01330 e->format = EXIF_FORMAT_UNDEFINED;
01331 e->size = exif_format_get_size (e->format) * e->components;
01332 e->data = exif_entry_alloc (e, e->size);
01333 if (!e->data) break;
01334 e->data[0] = 0x03;
01335 break;
01336
01337
01338 case EXIF_TAG_FLASH_PIX_VERSION:
01339 e->components = 4;
01340 e->format = EXIF_FORMAT_UNDEFINED;
01341 e->size = exif_format_get_size (e->format) * e->components;
01342 e->data = exif_entry_alloc (e, e->size);
01343 if (!e->data) break;
01344 memcpy (e->data, "0100", 4);
01345 break;
01346
01347
01348 case EXIF_TAG_EXIF_VERSION:
01349 e->components = 4;
01350 e->format = EXIF_FORMAT_UNDEFINED;
01351 e->size = exif_format_get_size (e->format) * e->components;
01352 e->data = exif_entry_alloc (e, e->size);
01353 if (!e->data) break;
01354 memcpy (e->data, "0210", 4);
01355 break;
01356
01357 default:
01358 break;
01359 }
01360 }