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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 identifyer. 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 t = e->data + strlen ((char *) e->data) + 1;
00686 ts = e->data + e->size - t;
00687 strncat (val, " - ", maxlen - strlen (val));
00688 if (e->size && e->data && (ts > 0) &&
00689 (strspn ((char *)t, " ") != ts))
00690 strncat (val, (char *)t, MIN (maxlen - strlen (val), ts));
00691 else
00692 strncat (val, _("[None]"), maxlen - strlen (val));
00693 strncat (val, " ", maxlen - strlen (val));
00694 strncat (val, _("(Editor)"), maxlen - strlen (val));
00695
00696 break;
00697 case EXIF_TAG_FNUMBER:
00698 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
00699 CC (e, 1, val, maxlen);
00700 v_rat = exif_get_rational (e->data, o);
00701 if (!v_rat.denominator) return val;
00702 snprintf (val, maxlen, "f/%.01f", (float) v_rat.numerator /
00703 (float) v_rat.denominator);
00704 break;
00705 case EXIF_TAG_APERTURE_VALUE:
00706 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
00707 CC (e, 1, val, maxlen);
00708 v_rat = exif_get_rational (e->data, o);
00709 if (!v_rat.denominator) return val;
00710 snprintf (val, maxlen, "f/%.01f",
00711 pow (2 , ((float) v_rat.numerator /
00712 (float) v_rat.denominator) / 2.));
00713 break;
00714 case EXIF_TAG_FOCAL_LENGTH:
00715 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
00716 CC (e, 1, val, maxlen);
00717 v_rat = exif_get_rational (e->data, o);
00718 if (!v_rat.denominator) return val;
00719
00720
00721
00722
00723
00724
00725 d = 0.;
00726 entry = exif_content_get_entry (
00727 e->parent->parent->ifd[EXIF_IFD_0], EXIF_TAG_MAKE);
00728 if (entry && entry->data &&
00729 !strncmp ((char *)entry->data, "Minolta", 7)) {
00730 entry = exif_content_get_entry (
00731 e->parent->parent->ifd[EXIF_IFD_0],
00732 EXIF_TAG_MODEL);
00733 if (entry && entry->data) {
00734 if (!strncmp ((char *)entry->data, "DiMAGE 7", 8))
00735 d = 3.9;
00736 else if (!strncmp ((char *)entry->data, "DiMAGE 5", 8))
00737 d = 4.9;
00738 }
00739 }
00740 if (d)
00741 snprintf (b, sizeof (b), _(" (35 equivalent: %d mm)"),
00742 (int) (d * (double) v_rat.numerator /
00743 (double) v_rat.denominator));
00744
00745 snprintf (val, maxlen, "%.1f mm",
00746 (float) v_rat.numerator / (float) v_rat.denominator);
00747 if (maxlen > strlen (val) + strlen (b))
00748 strncat (val, b, maxlen - strlen (val) - 1);
00749 break;
00750 case EXIF_TAG_SUBJECT_DISTANCE:
00751 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
00752 CC (e, 1, val, maxlen);
00753 v_rat = exif_get_rational (e->data, o);
00754 if (!v_rat.denominator) return val;
00755 snprintf (val, maxlen, "%.1f m", (float) v_rat.numerator /
00756 (float) v_rat.denominator);
00757 break;
00758 case EXIF_TAG_EXPOSURE_TIME:
00759 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
00760 CC (e, 1, val, maxlen);
00761 v_rat = exif_get_rational (e->data, o);
00762 if (!v_rat.denominator) return val;
00763 d = (double) v_rat.numerator / (double) v_rat.denominator;
00764 if (d < 1)
00765 snprintf (val, maxlen, _("1/%d"),
00766 (int) (1. / d));
00767 else
00768 snprintf (val, maxlen, _("%d"), (int) d);
00769 if (maxlen > strlen (val) + strlen (_(" sec.")))
00770 strncat (val, _(" sec."), maxlen - strlen (val) - 1);
00771 break;
00772 case EXIF_TAG_SHUTTER_SPEED_VALUE:
00773 CF (e, EXIF_FORMAT_SRATIONAL, val, maxlen);
00774 CC (e, 1, val, maxlen);
00775 v_srat = exif_get_srational (e->data, o);
00776 if (!v_srat.denominator) return val;
00777 snprintf (val, maxlen, "%.0f/%.0f", (float) v_srat.numerator,
00778 (float) v_srat.denominator);
00779 if (maxlen > strlen (val) + strlen (_(" sec.")))
00780 strncat (val, _(" sec."), maxlen - strlen (val) - 1);
00781 snprintf (b, sizeof (b), " (APEX: %i)",
00782 (int) pow (sqrt(2), (float) v_srat.numerator /
00783 (float) v_srat.denominator));
00784 if (maxlen > strlen (val) + strlen (b))
00785 strncat (val, b, maxlen - strlen (val) - 1);
00786 break;
00787 case EXIF_TAG_BRIGHTNESS_VALUE:
00788 CF (e, EXIF_FORMAT_SRATIONAL, val, maxlen);
00789 CC (e, 1, val, maxlen);
00790 v_srat = exif_get_srational (e->data, o);
00791 snprintf (val, maxlen, "%i/%i", (int) v_srat.numerator,
00792 (int) v_srat.denominator);
00793
00794 break;
00795 case EXIF_TAG_FILE_SOURCE:
00796 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
00797 CC (e, 1, val, maxlen);
00798 switch (e->data[0]) {
00799 case 0x03: strncpy (val, _("DSC"), maxlen); break;
00800 default: snprintf (val, maxlen, "0x%02x", e->data[0]); break;
00801 }
00802 break;
00803 case EXIF_TAG_COMPONENTS_CONFIGURATION:
00804 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
00805 CC (e, 4, val, maxlen);
00806 for (i = 0; i < 4; i++) {
00807 switch (e->data[i]) {
00808 case 0: c = _("-"); break;
00809 case 1: c = _("Y"); break;
00810 case 2: c = _("Cb"); break;
00811 case 3: c = _("Cr"); break;
00812 case 4: c = _("R"); break;
00813 case 5: c = _("G"); break;
00814 case 6: c = _("B"); break;
00815 default: c = _("reserved"); break;
00816 }
00817 strncat (val, c, maxlen - strlen (val));
00818 if (i < 3) strncat (val, " ", maxlen - strlen (val));
00819 }
00820 break;
00821 case EXIF_TAG_EXPOSURE_BIAS_VALUE:
00822 CF (e, EXIF_FORMAT_SRATIONAL, val, maxlen);
00823 CC (e, 1, val, maxlen);
00824 v_srat = exif_get_srational (e->data, o);
00825 if (!v_srat.denominator) return val;
00826 snprintf (val, maxlen, "%s%.01f",
00827 v_srat.denominator * v_srat.numerator > 0 ? "+" : "",
00828 (double) v_srat.numerator /
00829 (double) v_srat.denominator);
00830 break;
00831 case EXIF_TAG_YCBCR_SUB_SAMPLING:
00832 CF (e, EXIF_FORMAT_SHORT, val, maxlen);
00833 CC (e, 2, val, maxlen);
00834 v_short = exif_get_short (e->data, o);
00835 v_short2 = exif_get_short (
00836 e->data + exif_format_get_size (e->format),
00837 o);
00838 if ((v_short == 2) && (v_short2 == 1))
00839 strncpy (val, _("YCbCr4:2:2"), maxlen);
00840 else if ((v_short == 2) && (v_short2 == 2))
00841 strncpy (val, _("YCbCr4:2:0"), maxlen);
00842 else
00843 snprintf (val, maxlen, "%i, %i", v_short, v_short2);
00844 break;
00845 case EXIF_TAG_MAKER_NOTE:
00846 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
00847 snprintf (val, maxlen, _("%i bytes unknown data"),
00848 (int) e->components);
00849 break;
00850 case EXIF_TAG_SUBJECT_AREA:
00851 CF (e, EXIF_FORMAT_SHORT, val, maxlen);
00852 switch (e->components) {
00853 case 2:
00854 v_short = exif_get_short (e->data, o);
00855 v_short2 = exif_get_short (e->data + 2, o);
00856 snprintf (val, maxlen, "(x,y) = (%i,%i)",
00857 v_short, v_short2);
00858 break;
00859 case 3:
00860 v_short = exif_get_short (e->data, o);
00861 v_short2 = exif_get_short (e->data + 2, o);
00862 v_short3 = exif_get_short (e->data + 4, o);
00863 snprintf (val, maxlen, _("Within distance %i of "
00864 "(x,y) = (%i,%i)"), v_short3, v_short,
00865 v_short2);
00866 break;
00867 case 4:
00868 v_short = exif_get_short (e->data, o);
00869 v_short2 = exif_get_short (e->data + 2, o);
00870 v_short3 = exif_get_short (e->data + 4, o);
00871 v_short4 = exif_get_short (e->data + 6, o);
00872 snprintf (val, maxlen, _("Within rectangle "
00873 "(width %i, height %i) around "
00874 "(x,y) = (%i,%i)"), v_short3, v_short4,
00875 v_short, v_short2);
00876 break;
00877 default:
00878 snprintf (val, maxlen, _("Unexpected number "
00879 "of components (%li, expected 2, 3, or 4)."),
00880 e->components);
00881 }
00882 break;
00883
00884 case EXIF_TAG_METERING_MODE:
00885 case EXIF_TAG_COMPRESSION:
00886 case EXIF_TAG_FOCAL_PLANE_RESOLUTION_UNIT:
00887 case EXIF_TAG_RESOLUTION_UNIT:
00888 case EXIF_TAG_EXPOSURE_PROGRAM:
00889 case EXIF_TAG_FLASH:
00890 case EXIF_TAG_SUBJECT_DISTANCE_RANGE:
00891 case EXIF_TAG_COLOR_SPACE:
00892 CF (e,EXIF_FORMAT_SHORT, val, maxlen);
00893 CC (e, 1, val, maxlen);
00894 v_short = exif_get_short (e->data, o);
00895
00896
00897 for (i = 0; list2[i].tag && (list2[i].tag != e->tag); i++);
00898 if (!list2[i].tag) {
00899 strncpy (val, "Internal error.", maxlen - 1);
00900 break;
00901 }
00902
00903
00904 for (j = 0; list2[i].elem[j].values &&
00905 (list2[i].elem[j].index < v_short); j++);
00906 if (list2[i].elem[j].index != v_short) {
00907 snprintf (val, maxlen, "Internal error (unknown "
00908 "value %i).", v_short);
00909 break;
00910 }
00911
00912
00913 memset (val, 0, maxlen);
00914 for (k = 0; list2[i].elem[j].values &&
00915 list2[i].elem[j].values[k]; k++) {
00916 l = strlen (_(list2[i].elem[j].values[k]));
00917 if ((maxlen > l) && (strlen (val) < l))
00918 strncpy (val, _(list2[i].elem[j].values[k]), maxlen - 1);
00919 }
00920 if (!strlen (val)) snprintf (val, maxlen, "%i", v_short);
00921
00922 break;
00923 case EXIF_TAG_PLANAR_CONFIGURATION:
00924 case EXIF_TAG_SENSING_METHOD:
00925 case EXIF_TAG_ORIENTATION:
00926 case EXIF_TAG_YCBCR_POSITIONING:
00927 case EXIF_TAG_PHOTOMETRIC_INTERPRETATION:
00928 case EXIF_TAG_CUSTOM_RENDERED:
00929 case EXIF_TAG_EXPOSURE_MODE:
00930 case EXIF_TAG_WHITE_BALANCE:
00931 case EXIF_TAG_SCENE_CAPTURE_TYPE:
00932 case EXIF_TAG_GAIN_CONTROL:
00933 case EXIF_TAG_SATURATION:
00934 case EXIF_TAG_CONTRAST:
00935 case EXIF_TAG_SHARPNESS:
00936 CF (e, EXIF_FORMAT_SHORT, val, maxlen);
00937 CC (e, 1, val, maxlen);
00938 v_short = exif_get_short (e->data, o);
00939
00940
00941 for (i = 0; list[i].tag && (list[i].tag != e->tag); i++);
00942 if (!list[i].tag) {
00943 strncpy (val, "Internal error.", maxlen - 1);
00944 break;
00945 }
00946
00947
00948 for (j = 0; list[i].strings[j] && (j < v_short); j++);
00949 if (!list[i].strings[j])
00950 snprintf (val, maxlen, "%i", v_short);
00951 else
00952 strncpy (val, _(list[i].strings[j]), maxlen - 1);
00953 break;
00954 default:
00955 if (!e->components) break;
00956 switch (e->format) {
00957 case EXIF_FORMAT_UNDEFINED:
00958 break;
00959 case EXIF_FORMAT_BYTE:
00960 case EXIF_FORMAT_SBYTE:
00961 v_byte = e->data[0];
00962 snprintf (val, maxlen, "0x%02x", v_byte);
00963 maxlen -= strlen (val);
00964 for (i = 1; i < e->components; i++) {
00965 v_byte = e->data[i];
00966 snprintf (b, sizeof (b), ", 0x%02x", v_byte);
00967 strncat (val, b, maxlen);
00968 maxlen -= strlen (b);
00969 if ((signed)maxlen <= 0) break;
00970 }
00971 break;
00972 case EXIF_FORMAT_SHORT:
00973 case EXIF_FORMAT_SSHORT:
00974 v_short = exif_get_short (e->data, o);
00975 snprintf (val, maxlen, "%i", v_short);
00976 maxlen -= strlen (val);
00977 for (i = 1; i < e->components; i++) {
00978 v_short = exif_get_short (e->data +
00979 exif_format_get_size (e->format) *
00980 i, o);
00981 snprintf (b, sizeof (b), ", %i", v_short);
00982 strncat (val, b, maxlen);
00983 maxlen -= strlen (b);
00984 if ((signed)maxlen <= 0) break;
00985 }
00986 break;
00987 case EXIF_FORMAT_LONG:
00988 v_long = exif_get_long (e->data, o);
00989 snprintf (val, maxlen, "%li", (long int) v_long);
00990 maxlen -= strlen (val);
00991 for (i = 1; i < e->components; i++) {
00992 v_long = exif_get_long (e->data +
00993 exif_format_get_size (e->format) *
00994 i, o);
00995 snprintf (b, sizeof (b), ", %li",
00996 (long int) v_long);
00997 strncat (val, b, maxlen);
00998 maxlen -= strlen (b);
00999 if ((signed)maxlen <= 0) break;
01000 }
01001 break;
01002 case EXIF_FORMAT_SLONG:
01003 v_slong = exif_get_slong (e->data, o);
01004 snprintf (val, maxlen, "%li", (long int) v_slong);
01005 maxlen -= strlen (val);
01006 for (i = 1; i < e->components; i++) {
01007 v_long = exif_get_slong (e->data +
01008 exif_format_get_size (e->format) *
01009 i, o);
01010 snprintf (b, sizeof (b), ", %li",
01011 (long int) v_long);
01012 strncat (val, b, maxlen);
01013 maxlen -= strlen (b);
01014 if ((signed)maxlen <= 0) break;
01015 }
01016 break;
01017 case EXIF_FORMAT_ASCII:
01018 strncpy (val, (char *) e->data, MIN (maxlen, e->size));
01019 break;
01020 case EXIF_FORMAT_RATIONAL:
01021 v_rat = exif_get_rational (e->data, o);
01022 if (v_rat.denominator) {
01023 snprintf (val, maxlen, "%2.2f", (double)v_rat.numerator / v_rat.denominator);
01024 } else {
01025 snprintf (val, maxlen, "%i/%i", v_rat.numerator, v_rat.denominator);
01026 }
01027 maxlen -= strlen (val);
01028 for (i = 1; i < e->components; i++) {
01029 v_rat = exif_get_rational (
01030 e->data + 8 * i, o);
01031 snprintf (b, sizeof (b), ", %2.2f",
01032 (double)v_rat.numerator / v_rat.denominator);
01033 strncat (val, b, maxlen);
01034 maxlen -= strlen (b);
01035 if ((signed)maxlen <= 0) break;
01036 }
01037 break;
01038 case EXIF_FORMAT_SRATIONAL:
01039 v_srat = exif_get_srational (e->data, o);
01040 if (v_srat.denominator) {
01041 snprintf (val, maxlen, "%2.2f", (double)v_srat.numerator / v_srat.denominator);
01042 } else {
01043 snprintf (val, maxlen, "%i/%i", v_srat.numerator, v_srat.denominator);
01044 }
01045 maxlen -= strlen (val);
01046 for (i = 1; i < e->components; i++) {
01047 v_srat = exif_get_srational (
01048 e->data + 8 * i, o);
01049 snprintf (b, sizeof (b), ", %2.2f",
01050 (double)v_srat.numerator / v_srat.denominator);
01051 strncat (val, b, maxlen);
01052 maxlen -= strlen (b);
01053 if ((signed) maxlen <= 0) break;
01054 }
01055 break;
01056 case EXIF_FORMAT_DOUBLE:
01057 case EXIF_FORMAT_FLOAT:
01058 default:
01059
01060 break;
01061 }
01062 }
01063
01064 return val;
01065 }
01066
01067 void
01068 exif_entry_initialize (ExifEntry *e, ExifTag tag)
01069 {
01070 time_t t;
01071 struct tm *tm;
01072 ExifRational r;
01073 ExifByteOrder o;
01074
01075
01076 if (!e || !e->parent || e->data || !e->parent->parent)
01077 return;
01078 o = exif_data_get_byte_order (e->parent->parent);
01079
01080 e->tag = tag;
01081 switch (tag) {
01082
01083
01084 case EXIF_TAG_PIXEL_X_DIMENSION:
01085 case EXIF_TAG_PIXEL_Y_DIMENSION:
01086 case EXIF_TAG_EXIF_IFD_POINTER:
01087 case EXIF_TAG_GPS_INFO_IFD_POINTER:
01088 case EXIF_TAG_INTEROPERABILITY_IFD_POINTER:
01089 case EXIF_TAG_JPEG_INTERCHANGE_FORMAT_LENGTH:
01090 case EXIF_TAG_JPEG_INTERCHANGE_FORMAT:
01091 e->components = 1;
01092 e->format = EXIF_FORMAT_LONG;
01093 e->size = exif_format_get_size (e->format) * e->components;
01094 e->data = exif_entry_alloc (e, e->size);
01095 break;
01096
01097
01098 case EXIF_TAG_SUBJECT_LOCATION:
01099 case EXIF_TAG_SENSING_METHOD:
01100 case EXIF_TAG_PHOTOMETRIC_INTERPRETATION:
01101 case EXIF_TAG_COMPRESSION:
01102 case EXIF_TAG_EXPOSURE_MODE:
01103 case EXIF_TAG_WHITE_BALANCE:
01104 case EXIF_TAG_FOCAL_LENGTH_IN_35MM_FILM:
01105 case EXIF_TAG_GAIN_CONTROL:
01106 case EXIF_TAG_SUBJECT_DISTANCE_RANGE:
01107
01108
01109 case EXIF_TAG_IMAGE_WIDTH:
01110 case EXIF_TAG_IMAGE_LENGTH:
01111 case EXIF_TAG_EXPOSURE_PROGRAM:
01112 case EXIF_TAG_LIGHT_SOURCE:
01113 case EXIF_TAG_METERING_MODE:
01114 case EXIF_TAG_CUSTOM_RENDERED:
01115 case EXIF_TAG_SCENE_CAPTURE_TYPE:
01116 case EXIF_TAG_CONTRAST:
01117 case EXIF_TAG_SATURATION:
01118 case EXIF_TAG_SHARPNESS:
01119 e->components = 1;
01120 e->format = EXIF_FORMAT_SHORT;
01121 e->size = exif_format_get_size (e->format) * e->components;
01122 e->data = exif_entry_alloc (e, e->size);
01123 exif_set_short (e->data, o, 0);
01124 break;
01125
01126
01127 case EXIF_TAG_ORIENTATION:
01128 case EXIF_TAG_PLANAR_CONFIGURATION:
01129 case EXIF_TAG_YCBCR_POSITIONING:
01130 e->components = 1;
01131 e->format = EXIF_FORMAT_SHORT;
01132 e->size = exif_format_get_size (e->format) * e->components;
01133 e->data = exif_entry_alloc (e, e->size);
01134 exif_set_short (e->data, o, 1);
01135 break;
01136
01137
01138 case EXIF_TAG_RESOLUTION_UNIT:
01139 case EXIF_TAG_FOCAL_PLANE_RESOLUTION_UNIT:
01140 e->components = 1;
01141 e->format = EXIF_FORMAT_SHORT;
01142 e->size = exif_format_get_size (e->format) * e->components;
01143 e->data = exif_entry_alloc (e, e->size);
01144 exif_set_short (e->data, o, 2);
01145 break;
01146
01147
01148 case EXIF_TAG_SAMPLES_PER_PIXEL:
01149 e->components = 1;
01150 e->format = EXIF_FORMAT_SHORT;
01151 e->size = exif_format_get_size (e->format) * e->components;
01152 e->data = exif_entry_alloc (e, e->size);
01153 exif_set_short (e->data, o, 3);
01154 break;
01155
01156 case EXIF_TAG_BITS_PER_SAMPLE:
01157 e->components = 3;
01158 e->format = EXIF_FORMAT_SHORT;
01159 e->size = exif_format_get_size (e->format) * e->components;
01160 e->data = exif_entry_alloc (e, e->size);
01161 if (!e->data) break;
01162 exif_set_short (e->data, o, 8);
01163 exif_set_short (
01164 e->data + exif_format_get_size (e->format),
01165 o, 8);
01166 exif_set_short (
01167 e->data + 2 * exif_format_get_size (e->format),
01168 o, 8);
01169 break;
01170 case EXIF_TAG_YCBCR_SUB_SAMPLING:
01171 e->components = 2;
01172 e->format = EXIF_FORMAT_SHORT;
01173 e->size = exif_format_get_size (e->format) * e->components;
01174 e->data = exif_entry_alloc (e, e->size);
01175 if (!e->data) break;
01176 exif_set_short (e->data, o, 2);
01177 exif_set_short (
01178 e->data + exif_format_get_size (e->format),
01179 o, 1);
01180 break;
01181
01182
01183 case EXIF_TAG_EXPOSURE_BIAS_VALUE:
01184 case EXIF_TAG_BRIGHTNESS_VALUE:
01185 case EXIF_TAG_SHUTTER_SPEED_VALUE:
01186 e->components = 1;
01187 e->format = EXIF_FORMAT_SRATIONAL;
01188 e->size = exif_format_get_size (e->format) * e->components;
01189 e->data = exif_entry_alloc (e, e->size);
01190 break;
01191
01192
01193 case EXIF_TAG_EXPOSURE_TIME:
01194 case EXIF_TAG_FOCAL_PLANE_X_RESOLUTION:
01195 case EXIF_TAG_FOCAL_PLANE_Y_RESOLUTION:
01196 case EXIF_TAG_EXPOSURE_INDEX:
01197 case EXIF_TAG_FLASH_ENERGY:
01198 case EXIF_TAG_FNUMBER:
01199 case EXIF_TAG_FOCAL_LENGTH:
01200 case EXIF_TAG_SUBJECT_DISTANCE:
01201 case EXIF_TAG_MAX_APERTURE_VALUE:
01202 case EXIF_TAG_APERTURE_VALUE:
01203 case EXIF_TAG_COMPRESSED_BITS_PER_PIXEL:
01204 case EXIF_TAG_PRIMARY_CHROMATICITIES:
01205 case EXIF_TAG_DIGITAL_ZOOM_RATIO:
01206 e->components = 1;
01207 e->format = EXIF_FORMAT_RATIONAL;
01208 e->size = exif_format_get_size (e->format) * e->components;
01209 e->data = exif_entry_alloc (e, e->size);
01210 break;
01211
01212
01213 case EXIF_TAG_X_RESOLUTION:
01214 case EXIF_TAG_Y_RESOLUTION:
01215 e->components = 1;
01216 e->format = EXIF_FORMAT_RATIONAL;
01217 e->size = exif_format_get_size (e->format) * e->components;
01218 e->data = exif_entry_alloc (e, e->size);
01219 r.numerator = 72;
01220 r.denominator = 1;
01221 exif_set_rational (e->data, o, r);
01222 break;
01223
01224
01225 case EXIF_TAG_WHITE_POINT:
01226 e->components = 2;
01227 e->format = EXIF_FORMAT_RATIONAL;
01228 e->size = exif_format_get_size (e->format) * e->components;
01229 e->data = exif_entry_alloc (e, e->size);
01230 break;
01231
01232
01233 case EXIF_TAG_REFERENCE_BLACK_WHITE:
01234 e->components = 6;
01235 e->format = EXIF_FORMAT_RATIONAL;
01236 e->size = exif_format_get_size (e->format) * e->components;
01237 e->data = exif_entry_alloc (e, e->size);
01238 if (!e->data) break;
01239 r.denominator = 1;
01240 r.numerator = 0;
01241 exif_set_rational (e->data, o, r);
01242 r.numerator = 255;
01243 exif_set_rational (
01244 e->data + exif_format_get_size (e->format), o, r);
01245 r.numerator = 0;
01246 exif_set_rational (
01247 e->data + 2 * exif_format_get_size (e->format), o, r);
01248 r.numerator = 255;
01249 exif_set_rational (
01250 e->data + 3 * exif_format_get_size (e->format), o, r);
01251 r.numerator = 0;
01252 exif_set_rational (
01253 e->data + 4 * exif_format_get_size (e->format), o, r);
01254 r.numerator = 255;
01255 exif_set_rational (
01256 e->data + 5 * exif_format_get_size (e->format), o, r);
01257 break;
01258
01259
01260 case EXIF_TAG_DATE_TIME:
01261 case EXIF_TAG_DATE_TIME_ORIGINAL:
01262 case EXIF_TAG_DATE_TIME_DIGITIZED:
01263 t = time (NULL);
01264 tm = localtime (&t);
01265 e->components = 20;
01266 e->format = EXIF_FORMAT_ASCII;
01267 e->size = exif_format_get_size (e->format) * e->components;
01268 e->data = exif_entry_alloc (e, e->size);
01269 if (!e->data) break;
01270 snprintf ((char *) e->data, e->size,
01271 "%04i:%02i:%02i %02i:%02i:%02i",
01272 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
01273 tm->tm_hour, tm->tm_min, tm->tm_sec);
01274 break;
01275
01276
01277 case EXIF_TAG_SUB_SEC_TIME:
01278 case EXIF_TAG_SUB_SEC_TIME_ORIGINAL:
01279 case EXIF_TAG_SUB_SEC_TIME_DIGITIZED:
01280 e->components = 0;
01281 e->format = EXIF_FORMAT_ASCII;
01282 e->size = 0;
01283 e->data = NULL;
01284 break;
01285 case EXIF_TAG_IMAGE_DESCRIPTION:
01286 case EXIF_TAG_MAKE:
01287 case EXIF_TAG_MODEL:
01288 case EXIF_TAG_SOFTWARE:
01289 case EXIF_TAG_ARTIST:
01290 e->components = strlen (_("[None]")) + 1;
01291 e->format = EXIF_FORMAT_ASCII;
01292 e->size = exif_format_get_size (e->format) * e->components;
01293 e->data = exif_entry_alloc (e, e->size);
01294 if (!e->data) break;
01295 strncpy ((char *)e->data, _("[None]"), e->size);
01296 break;
01297 case EXIF_TAG_COPYRIGHT:
01298 e->components = (strlen (_("[None]")) + 1) * 2;
01299 e->format = EXIF_FORMAT_ASCII;
01300 e->size = exif_format_get_size (e->format) * e->components;
01301 e->data = exif_entry_alloc (e, e->size);
01302 if (!e->data) break;
01303 strcpy (((char *)e->data) + 0, _("[None]"));
01304 strcpy (((char *)e->data) + strlen (_("[None]")) + 1, _("[None]"));
01305 break;
01306
01307
01308 case EXIF_TAG_MAKER_NOTE:
01309 case EXIF_TAG_USER_COMMENT:
01310 e->components = 0;
01311 e->format = EXIF_FORMAT_UNDEFINED;
01312 e->size = 0;
01313 e->data = NULL;
01314 break;
01315
01316
01317 case EXIF_TAG_SCENE_TYPE:
01318 e->components = 1;
01319 e->format = EXIF_FORMAT_UNDEFINED;
01320 e->size = exif_format_get_size (e->format) * e->components;
01321 e->data = exif_entry_alloc (e, e->size);
01322 if (!e->data) break;
01323 e->data[0] = 0x01;
01324 break;
01325
01326
01327 case EXIF_TAG_FILE_SOURCE:
01328 e->components = 1;
01329 e->format = EXIF_FORMAT_UNDEFINED;
01330 e->size = exif_format_get_size (e->format) * e->components;
01331 e->data = exif_entry_alloc (e, e->size);
01332 if (!e->data) break;
01333 e->data[0] = 0x03;
01334 break;
01335
01336
01337 case EXIF_TAG_FLASH_PIX_VERSION:
01338 e->components = 4;
01339 e->format = EXIF_FORMAT_UNDEFINED;
01340 e->size = exif_format_get_size (e->format) * e->components;
01341 e->data = exif_entry_alloc (e, e->size);
01342 if (!e->data) break;
01343 memcpy (e->data, "0100", 4);
01344 break;
01345
01346
01347 case EXIF_TAG_EXIF_VERSION:
01348 e->components = 4;
01349 e->format = EXIF_FORMAT_UNDEFINED;
01350 e->size = exif_format_get_size (e->format) * e->components;
01351 e->data = exif_entry_alloc (e, e->size);
01352 if (!e->data) break;
01353 memcpy (e->data, "0210", 4);
01354 break;
01355
01356 default:
01357 break;
01358 }
01359 }
