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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
00365 static int
00366 match_repeated_char(const unsigned char *data, unsigned char ch, size_t n)
00367 {
00368 int i;
00369 for (i=n; i; --i, ++data) {
00370 if (*data == 0) {
00371 i = 0;
00372 break;
00373 }
00374 if (*data != ch)
00375 break;
00376 }
00377 return i;
00378 }
00379
00380 #define CF(entry,target,v,maxlen) \
00381 { \
00382 if (entry->format != target) { \
00383 exif_entry_log (entry, EXIF_LOG_CODE_CORRUPT_DATA, \
00384 _("The tag '%s' contains data of an invalid " \
00385 "format ('%s', expected '%s')."), \
00386 exif_tag_get_name (entry->tag), \
00387 exif_format_get_name (entry->format), \
00388 exif_format_get_name (target)); \
00389 break; \
00390 } \
00391 }
00392
00393 #define CC(entry,target,v,maxlen) \
00394 { \
00395 if (entry->components != target) { \
00396 exif_entry_log (entry, EXIF_LOG_CODE_CORRUPT_DATA, \
00397 _("The tag '%s' contains an invalid number of " \
00398 "components (%i, expected %i)."), \
00399 exif_tag_get_name (entry->tag), \
00400 (int) entry->components, (int) target); \
00401 break; \
00402 } \
00403 }
00404
00405 static struct {
00406 ExifTag tag;
00407 const char *strings[10];
00408 } list[] = {
00409 { EXIF_TAG_PLANAR_CONFIGURATION,
00410 { N_("chunky format"), N_("planar format"), NULL}},
00411 { EXIF_TAG_SENSING_METHOD,
00412 { "", N_("Not defined"), N_("One-chip color area sensor"),
00413 N_("Two-chip color area sensor"), N_("Three-chip color area sensor"),
00414 N_("Color sequential area sensor"), "", N_("Trilinear sensor"),
00415 N_("Color sequential linear sensor"), NULL}},
00416 { EXIF_TAG_ORIENTATION,
00417 { "", N_("top - left"), N_("top - right"), N_("bottom - right"),
00418 N_("bottom - left"), N_("left - top"), N_("right - top"),
00419 N_("right - bottom"), N_("left - bottom"), NULL}},
00420 { EXIF_TAG_YCBCR_POSITIONING,
00421 { "", N_("centered"), N_("co-sited"), NULL}},
00422 { EXIF_TAG_PHOTOMETRIC_INTERPRETATION, {"", N_("RGB"), N_("YCbCr"), NULL}},
00423 { EXIF_TAG_CUSTOM_RENDERED,
00424 { N_("Normal process"), N_("Custom process"), NULL}},
00425 { EXIF_TAG_EXPOSURE_MODE,
00426 { N_("Auto exposure"), N_("Manual exposure"), N_("Auto bracket"), NULL}},
00427 { EXIF_TAG_WHITE_BALANCE,
00428 { N_("Auto white balance"), N_("Manual white balance"), NULL}},
00429 { EXIF_TAG_SCENE_CAPTURE_TYPE,
00430 { N_("Standard"), N_("Landscape"), N_("Portrait"),
00431 N_("Night scene"), NULL}},
00432 { EXIF_TAG_GAIN_CONTROL,
00433 { N_("Normal"), N_("Low gain up"), N_("High gain up"),
00434 N_("Low gain down"), N_("High gain down"), NULL}},
00435 { EXIF_TAG_SATURATION,
00436 { N_("Normal"), N_("Low saturation"), N_("High saturation"), NULL}},
00437 { EXIF_TAG_CONTRAST , {N_("Normal"), N_("Soft"), N_("Hard"), NULL}},
00438 { EXIF_TAG_SHARPNESS, {N_("Normal"), N_("Soft"), N_("Hard"), NULL}},
00439 { 0, {NULL}}
00440 };
00441
00442 static struct {
00443 ExifTag tag;
00444 struct {
00445 int index;
00446 const char *values[4];
00447 } elem[25];
00448 } list2[] = {
00449 { EXIF_TAG_METERING_MODE,
00450 { { 0, {N_("Unknown"), NULL}},
00451 { 1, {N_("Average"), N_("avg"), NULL}},
00452 { 2, {N_("Center-Weighted Average"), N_("Center-Weight"), NULL}},
00453 { 3, {N_("Spot"), NULL}},
00454 { 4, {N_("Multi Spot"), NULL}},
00455 { 5, {N_("Pattern"), NULL}},
00456 { 6, {N_("Partial"), NULL}},
00457 {255, {N_("Other"), NULL}},
00458 { 0, {NULL}}}},
00459 { EXIF_TAG_COMPRESSION,
00460 { {1, {N_("Uncompressed"), NULL}},
00461 {5, {N_("LZW compression"), NULL}},
00462 {6, {N_("JPEG compression"), NULL}},
00463 {0, {NULL}}}},
00464 { EXIF_TAG_LIGHT_SOURCE,
00465 { { 0, {N_("Unknown"), NULL}},
00466 { 1, {N_("Daylight"), NULL}},
00467 { 2, {N_("Fluorescent"), NULL}},
00468 { 3, {N_("Tungsten incandescent light"), N_("Tungsten"), NULL}},
00469 { 4, {N_("Flash"), NULL}},
00470 { 9, {N_("Fine weather"), NULL}},
00471 { 10, {N_("Cloudy weather"), N_("cloudy"), NULL}},
00472 { 11, {N_("Shade"), NULL}},
00473 { 12, {N_("Daylight fluorescent"), NULL}},
00474 { 13, {N_("Day white fluorescent"), NULL}},
00475 { 14, {N_("Cool white fluorescent"), NULL}},
00476 { 15, {N_("White fluorescent"), NULL}},
00477 { 17, {N_("Standard light A"), NULL}},
00478 { 18, {N_("Standard light B"), NULL}},
00479 { 19, {N_("Standard light C"), NULL}},
00480 { 20, {N_("D55"), NULL}},
00481 { 21, {N_("D65"), NULL}},
00482 { 22, {N_("D75"), NULL}},
00483 { 24, {N_("ISO studio tungsten"),NULL}},
00484 {255, {N_("Other"), NULL}},
00485 { 0, {NULL}}}},
00486 { EXIF_TAG_FOCAL_PLANE_RESOLUTION_UNIT,
00487 { {2, {N_("Inch"), N_("in"), NULL}},
00488 {3, {N_("Centimeter"), N_("cm"), NULL}},
00489 {0, {NULL}}}},
00490 { EXIF_TAG_RESOLUTION_UNIT,
00491 { {2, {N_("Inch"), N_("in"), NULL}},
00492 {3, {N_("Centimeter"), N_("cm"), NULL}},
00493 {0, {NULL}}}},
00494 { EXIF_TAG_EXPOSURE_PROGRAM,
00495 { {0, {N_("Not defined"), NULL}},
00496 {1, {N_("Manual"), NULL}},
00497 {2, {N_("Normal program"), N_("Normal"), NULL}},
00498 {3, {N_("Aperture priority"), N_("Aperture"), NULL}},
00499 {4, {N_("Shutter priority"),N_("Shutter"), NULL}},
00500 {5, {N_("Creative program (biased toward depth of field)"),
00501 N_("Creative"), NULL}},
00502 {6, {N_("Creative program (biased toward fast shutter speed)"),
00503 N_("Action"), NULL}},
00504 {7, {N_("Portrait mode (for closeup photos with the background out "
00505 "of focus)"), N_("Portrait"), NULL}},
00506 {8, {N_("Landscape mode (for landscape photos with the background "
00507 "in focus)"), N_("Landscape"), NULL}},
00508 {0, {NULL}}}},
00509 { EXIF_TAG_FLASH,
00510 { {0x0000, {N_("Flash did not fire."), N_("no flash"), NULL}},
00511 {0x0001, {N_("Flash fired."), N_("flash"), N_("Yes"), NULL}},
00512 {0x0005, {N_("Strobe return light not detected."), N_("W/o strobe"),
00513 NULL}},
00514 {0x0007, {N_("Strobe return light detected."), N_("W. strobe"), NULL}},
00515 {0x0009, {N_("Flash fired, compulsatory flash mode"), NULL}},
00516 {0x000d, {N_("Flash fired, compulsatory flash mode, return light "
00517 "not detected."), NULL}},
00518 {0x000f, {N_("Flash fired, compulsatory flash mode, return light "
00519 "detected."), NULL}},
00520 {0x0010, {N_("Flash did not fire, compulsatory flash mode."), NULL}},
00521 {0x0018, {N_("Flash did not fire, auto mode."), NULL}},
00522 {0x0019, {N_("Flash fired, auto mode."), NULL}},
00523 {0x001d, {N_("Flash fired, auto mode, return light not detected."),
00524 NULL}},
00525 {0x001f, {N_("Flash fired, auto mode, return light detected."), NULL}},
00526 {0x0020, {N_("No flash function."),NULL}},
00527 {0x0041, {N_("Flash fired, red-eye reduction mode."), NULL}},
00528 {0x0045, {N_("Flash fired, red-eye reduction mode, return light "
00529 "not detected."), NULL}},
00530 {0x0047, {N_("Flash fired, red-eye reduction mode, return light "
00531 "detected."), NULL}},
00532 {0x0049, {N_("Flash fired, compulsory flash mode, red-eye reduction "
00533 "mode."), NULL}},
00534 {0x004d, {N_("Flash fired, compulsory flash mode, red-eye reduction "
00535 "mode, return light not detected"), NULL}},
00536 {0x004f, {N_("Flash fired, compulsory flash mode, red-eye reduction, "
00537 "return light detected"), NULL}},
00538 {0x0058, {N_("Flash did not fire, auto mode, red-eye reduction mode"), NULL}},
00539 {0x0059, {N_("Flash fired, auto mode, red-eye reduction mode"), NULL}},
00540 {0x005d, {N_("Flash fired, auto mode, return light not detected, "
00541 "red-eye reduction mode."), NULL}},
00542 {0x005f, {N_("Flash fired, auto mode, return light detected, "
00543 "red-eye reduction mode."), NULL}},
00544 {0x0000, {NULL}}}},
00545 {EXIF_TAG_SUBJECT_DISTANCE_RANGE,
00546 { {0, {N_("Unknown"), N_("?"), NULL}},
00547 {1, {N_("Macro"), NULL}},
00548 {2, {N_("Close view"), N_("close"), NULL}},
00549 {3, {N_("Distant view"), N_("distant"), NULL}},
00550 {0, {NULL}}}},
00551 { EXIF_TAG_COLOR_SPACE,
00552 { {1, {N_("sRGB"), NULL}},
00553 {2, {N_("Adobe RGB"), NULL}},
00554 {0xffff, {N_("Uncalibrated"), NULL}}}},
00555 {0, }
00556 };
00557
00558 const char *
00559 exif_entry_get_value (ExifEntry *e, char *val, unsigned int maxlen)
00560 {
00561 unsigned int i, j, k, l, ts;
00562 ExifByte v_byte;
00563 ExifShort v_short, v_short2, v_short3, v_short4;
00564 ExifLong v_long;
00565 ExifSLong v_slong;
00566 ExifRational v_rat;
00567 ExifSRational v_srat;
00568 char b[64];
00569 const char *c;
00570 size_t len;
00571 ExifByteOrder o;
00572 double d;
00573 ExifEntry *entry;
00574 static struct {
00575 char *label;
00576 char major, minor;
00577 } versions[] = {
00578 {"0110", 1, 1},
00579 {"0120", 1, 2},
00580 {"0200", 2, 0},
00581 {"0210", 2, 1},
00582 {"0220", 2, 2},
00583 {"0221", 2, 21},
00584 {NULL , 0, 0}
00585 };
00586
00587
00588
00589
00590
00591
00592
00593
00594 bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
00595
00596
00597 if (!e || !e->parent || !e->parent->parent || !maxlen)
00598 return val;
00599 o = exif_data_get_byte_order (e->parent->parent);
00600
00601 memset (val, 0, maxlen);
00602 memset (b, 0, sizeof (b));
00603 maxlen--;
00604
00605
00606 if (e->size != e->components * exif_format_get_size (e->format)) {
00607 snprintf (val, maxlen, _("Invalid size of entry (%i, "
00608 "expected %li x %i)."), e->size, e->components,
00609 exif_format_get_size (e->format));
00610 return val;
00611 }
00612
00613 switch (e->tag) {
00614 case EXIF_TAG_USER_COMMENT:
00615
00616
00617
00618
00619
00620
00621
00622 if ((e->format != EXIF_FORMAT_ASCII) ||
00623 (e->size <= 8) ||
00624 ( memcmp (e->data, "ASCII\0\0\0" , 8) &&
00625 memcmp (e->data, "UNICODE\0" , 8) &&
00626 memcmp (e->data, "JIS\0\0\0\0\0", 8) &&
00627 memcmp (e->data, "\0\0\0\0\0\0\0\0", 8)))
00628 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
00629
00630
00631
00632
00633
00634
00635 if ((e->size >= 8) && !memcmp (e->data, "ASCII\0\0\0", 8)) {
00636 strncpy (val, (char *) e->data + 8, MIN (e->size - 8, maxlen));
00637 break;
00638 }
00639 if ((e->size >= 8) && !memcmp (e->data, "UNICODE\0", 8)) {
00640 strncpy (val, _("Unsupported UNICODE string"), maxlen);
00641 break;
00642 }
00643 if ((e->size >= 8) && !memcmp (e->data, "JIS\0\0\0\0\0", 8)) {
00644 strncpy (val, _("Unsupported JIS string"), maxlen);
00645 break;
00646 }
00647
00648
00649 for (i = 0; (i < e->size) &&
00650 (!e->data[i] || (e->data[i] == ' ')); i++);
00651 if (i == e->size) break;
00652
00653
00654
00655
00656
00657
00658 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
00659 _("Tag UserComment does not comply "
00660 "with standard but contains data."));
00661 for (j = 0; (i < e->size) && (j < maxlen); i++, j++) {
00662 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
00663 _("Byte at position %i: 0x%02x"), i, e->data[i]);
00664 val[j] = isprint (e->data[i]) ? e->data[i] : '.';
00665 }
00666 break;
00667
00668 case EXIF_TAG_EXIF_VERSION:
00669 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
00670 CC (e, 4, val, maxlen);
00671 strncpy (val, _("Unknown Exif Version"), maxlen);
00672 for (i = 0; versions[i].label; i++) {
00673 if (!memcmp (e->data, versions[i].label, 4)) {
00674 snprintf (val, maxlen,
00675 _("Exif Version %d.%d"),
00676 versions[i].major,
00677 versions[i].minor);
00678 break;
00679 }
00680 }
00681 break;
00682 case EXIF_TAG_FLASH_PIX_VERSION:
00683 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
00684 CC (e, 4, val, maxlen);
00685 if (!memcmp (e->data, "0100", 4))
00686 strncpy (val, _("FlashPix Version 1.0"), maxlen);
00687 else if (!memcmp (e->data, "0101", 4))
00688 strncpy (val, _("FlashPix Version 1.01"), maxlen);
00689 else
00690 strncpy (val, _("Unknown FlashPix Version"), maxlen);
00691 break;
00692 case EXIF_TAG_COPYRIGHT:
00693 CF (e, EXIF_FORMAT_ASCII, val, maxlen);
00694
00695
00696
00697
00698
00699
00700 if (e->size && e->data && match_repeated_char(e->data, ' ', e->size))
00701 strncpy (val, (char *) e->data, MIN (maxlen, e->size));
00702 else
00703 strncpy (val, _("[None]"), maxlen);
00704 strncat (val, " ", maxlen - strlen (val));
00705 strncat (val, _("(Photographer)"), maxlen - strlen (val));
00706
00707
00708 strncat (val, " - ", maxlen - strlen (val));
00709 k = 0;
00710 if (e->size && e->data) {
00711 const unsigned char *tagdata = memchr(e->data, 0, e->size);
00712 if (tagdata++) {
00713 int editor_ofs = tagdata - e->data;
00714 int remaining = e->size - editor_ofs;
00715 if (match_repeated_char(tagdata, ' ', remaining)) {
00716 strncat (val, (const char*)tagdata, MIN (maxlen - strlen (val), remaining));
00717 ++k;
00718 }
00719 }
00720 }
00721 if (!k)
00722 strncat (val, _("[None]"), maxlen - strlen (val));
00723 strncat (val, " ", maxlen - strlen (val));
00724 strncat (val, _("(Editor)"), maxlen - strlen (val));
00725
00726 break;
00727 case EXIF_TAG_FNUMBER:
00728 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
00729 CC (e, 1, val, maxlen);
00730 v_rat = exif_get_rational (e->data, o);
00731 if (!v_rat.denominator) return val;
00732 snprintf (val, maxlen, "f/%.01f", (float) v_rat.numerator /
00733 (float) v_rat.denominator);
00734 break;
00735 case EXIF_TAG_APERTURE_VALUE:
00736 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
00737 CC (e, 1, val, maxlen);
00738 v_rat = exif_get_rational (e->data, o);
00739 if (!v_rat.denominator) return val;
00740 snprintf (val, maxlen, "f/%.01f",
00741 pow (2 , ((float) v_rat.numerator /
00742 (float) v_rat.denominator) / 2.));
00743 break;
00744 case EXIF_TAG_FOCAL_LENGTH:
00745 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
00746 CC (e, 1, val, maxlen);
00747 v_rat = exif_get_rational (e->data, o);
00748 if (!v_rat.denominator) return val;
00749
00750
00751
00752
00753
00754
00755 d = 0.;
00756 entry = exif_content_get_entry (
00757 e->parent->parent->ifd[EXIF_IFD_0], EXIF_TAG_MAKE);
00758 if (entry && entry->data &&
00759 !strncmp ((char *)entry->data, "Minolta", 7)) {
00760 entry = exif_content_get_entry (
00761 e->parent->parent->ifd[EXIF_IFD_0],
00762 EXIF_TAG_MODEL);
00763 if (entry && entry->data) {
00764 if (!strncmp ((char *)entry->data, "DiMAGE 7", 8))
00765 d = 3.9;
00766 else if (!strncmp ((char *)entry->data, "DiMAGE 5", 8))
00767 d = 4.9;
00768 }
00769 }
00770 if (d)
00771 snprintf (b, sizeof (b), _(" (35 equivalent: %d mm)"),
00772 (int) (d * (double) v_rat.numerator /
00773 (double) v_rat.denominator));
00774
00775 snprintf (val, maxlen, "%.1f mm",
00776 (float) v_rat.numerator / (float) v_rat.denominator);
00777 if (maxlen > strlen (val) + strlen (b))
00778 strncat (val, b, maxlen - strlen (val) - 1);
00779 break;
00780 case EXIF_TAG_SUBJECT_DISTANCE:
00781 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
00782 CC (e, 1, val, maxlen);
00783 v_rat = exif_get_rational (e->data, o);
00784 if (!v_rat.denominator) return val;
00785 snprintf (val, maxlen, "%.1f m", (float) v_rat.numerator /
00786 (float) v_rat.denominator);
00787 break;
00788 case EXIF_TAG_EXPOSURE_TIME:
00789 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
00790 CC (e, 1, val, maxlen);
00791 v_rat = exif_get_rational (e->data, o);
00792 if (!v_rat.denominator) return val;
00793 d = (double) v_rat.numerator / (double) v_rat.denominator;
00794 if (d < 1)
00795 snprintf (val, maxlen, _("1/%d"),
00796 (int) (1. / d));
00797 else
00798 snprintf (val, maxlen, _("%d"), (int) d);
00799 if (maxlen > strlen (val) + strlen (_(" sec.")))
00800 strncat (val, _(" sec."), maxlen - strlen (val) - 1);
00801 break;
00802 case EXIF_TAG_SHUTTER_SPEED_VALUE:
00803 CF (e, EXIF_FORMAT_SRATIONAL, val, maxlen);
00804 CC (e, 1, val, maxlen);
00805 v_srat = exif_get_srational (e->data, o);
00806 if (!v_srat.denominator) return val;
00807 snprintf (val, maxlen, "%.0f/%.0f", (float) v_srat.numerator,
00808 (float) v_srat.denominator);
00809 if (maxlen > strlen (val) + strlen (_(" sec.")))
00810 strncat (val, _(" sec."), maxlen - strlen (val) - 1);
00811 snprintf (b, sizeof (b), " (APEX: %i)",
00812 (int) pow (sqrt(2), (float) v_srat.numerator /
00813 (float) v_srat.denominator));
00814 if (maxlen > strlen (val) + strlen (b))
00815 strncat (val, b, maxlen - strlen (val) - 1);
00816 break;
00817 case EXIF_TAG_BRIGHTNESS_VALUE:
00818 CF (e, EXIF_FORMAT_SRATIONAL, val, maxlen);
00819 CC (e, 1, val, maxlen);
00820 v_srat = exif_get_srational (e->data, o);
00821 snprintf (val, maxlen, "%i/%i", (int) v_srat.numerator,
00822 (int) v_srat.denominator);
00823
00824 break;
00825 case EXIF_TAG_FILE_SOURCE:
00826 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
00827 CC (e, 1, val, maxlen);
00828 switch (e->data[0]) {
00829 case 0x03: strncpy (val, _("DSC"), maxlen); break;
00830 default: snprintf (val, maxlen, "0x%02x", e->data[0]); break;
00831 }
00832 break;
00833 case EXIF_TAG_COMPONENTS_CONFIGURATION:
00834 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
00835 CC (e, 4, val, maxlen);
00836 for (i = 0; i < 4; i++) {
00837 switch (e->data[i]) {
00838 case 0: c = _("-"); break;
00839 case 1: c = _("Y"); break;
00840 case 2: c = _("Cb"); break;
00841 case 3: c = _("Cr"); break;
00842 case 4: c = _("R"); break;
00843 case 5: c = _("G"); break;
00844 case 6: c = _("B"); break;
00845 default: c = _("reserved"); break;
00846 }
00847 strncat (val, c, maxlen - strlen (val));
00848 if (i < 3) strncat (val, " ", maxlen - strlen (val));
00849 }
00850 break;
00851 case EXIF_TAG_EXPOSURE_BIAS_VALUE:
00852 CF (e, EXIF_FORMAT_SRATIONAL, val, maxlen);
00853 CC (e, 1, val, maxlen);
00854 v_srat = exif_get_srational (e->data, o);
00855 if (!v_srat.denominator) return val;
00856 snprintf (val, maxlen, "%s%.01f",
00857 v_srat.denominator * v_srat.numerator > 0 ? "+" : "",
00858 (double) v_srat.numerator /
00859 (double) v_srat.denominator);
00860 break;
00861 case EXIF_TAG_YCBCR_SUB_SAMPLING:
00862 CF (e, EXIF_FORMAT_SHORT, val, maxlen);
00863 CC (e, 2, val, maxlen);
00864 v_short = exif_get_short (e->data, o);
00865 v_short2 = exif_get_short (
00866 e->data + exif_format_get_size (e->format),
00867 o);
00868 if ((v_short == 2) && (v_short2 == 1))
00869 strncpy (val, _("YCbCr4:2:2"), maxlen);
00870 else if ((v_short == 2) && (v_short2 == 2))
00871 strncpy (val, _("YCbCr4:2:0"), maxlen);
00872 else
00873 snprintf (val, maxlen, "%i, %i", v_short, v_short2);
00874 break;
00875 case EXIF_TAG_MAKER_NOTE:
00876 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
00877 snprintf (val, maxlen, _("%i bytes unknown data"),
00878 (int) e->components);
00879 break;
00880 case EXIF_TAG_SUBJECT_AREA:
00881 CF (e, EXIF_FORMAT_SHORT, val, maxlen);
00882 switch (e->components) {
00883 case 2:
00884 v_short = exif_get_short (e->data, o);
00885 v_short2 = exif_get_short (e->data + 2, o);
00886 snprintf (val, maxlen, "(x,y) = (%i,%i)",
00887 v_short, v_short2);
00888 break;
00889 case 3:
00890 v_short = exif_get_short (e->data, o);
00891 v_short2 = exif_get_short (e->data + 2, o);
00892 v_short3 = exif_get_short (e->data + 4, o);
00893 snprintf (val, maxlen, _("Within distance %i of "
00894 "(x,y) = (%i,%i)"), v_short3, v_short,
00895 v_short2);
00896 break;
00897 case 4:
00898 v_short = exif_get_short (e->data, o);
00899 v_short2 = exif_get_short (e->data + 2, o);
00900 v_short3 = exif_get_short (e->data + 4, o);
00901 v_short4 = exif_get_short (e->data + 6, o);
00902 snprintf (val, maxlen, _("Within rectangle "
00903 "(width %i, height %i) around "
00904 "(x,y) = (%i,%i)"), v_short3, v_short4,
00905 v_short, v_short2);
00906 break;
00907 default:
00908 snprintf (val, maxlen, _("Unexpected number "
00909 "of components (%li, expected 2, 3, or 4)."),
00910 e->components);
00911 }
00912 break;
00913
00914 case EXIF_TAG_METERING_MODE:
00915 case EXIF_TAG_COMPRESSION:
00916 case EXIF_TAG_FOCAL_PLANE_RESOLUTION_UNIT:
00917 case EXIF_TAG_RESOLUTION_UNIT:
00918 case EXIF_TAG_EXPOSURE_PROGRAM:
00919 case EXIF_TAG_FLASH:
00920 case EXIF_TAG_SUBJECT_DISTANCE_RANGE:
00921 case EXIF_TAG_COLOR_SPACE:
00922 CF (e,EXIF_FORMAT_SHORT, val, maxlen);
00923 CC (e, 1, val, maxlen);
00924 v_short = exif_get_short (e->data, o);
00925
00926
00927 for (i = 0; list2[i].tag && (list2[i].tag != e->tag); i++);
00928 if (!list2[i].tag) {
00929 strncpy (val, _("Internal error."), maxlen - 1);
00930 break;
00931 }
00932
00933
00934 for (j = 0; list2[i].elem[j].values &&
00935 (list2[i].elem[j].index < v_short); j++);
00936 if (list2[i].elem[j].index != v_short || v_short == 65535) {
00937 snprintf (val, maxlen, _("Internal error (unknown "
00938 "value %i)."), v_short);
00939 break;
00940 }
00941
00942
00943 memset (val, 0, maxlen);
00944 for (k = 0; list2[i].elem[j].values &&
00945 list2[i].elem[j].values[k]; k++) {
00946 l = strlen (_(list2[i].elem[j].values[k]));
00947 if ((maxlen > l) && (strlen (val) < l))
00948 strncpy (val, _(list2[i].elem[j].values[k]), maxlen - 1);
00949 }
00950 if (!strlen (val)) snprintf (val, maxlen, "%i", v_short);
00951
00952 break;
00953 case EXIF_TAG_PLANAR_CONFIGURATION:
00954 case EXIF_TAG_SENSING_METHOD:
00955 case EXIF_TAG_ORIENTATION:
00956 case EXIF_TAG_YCBCR_POSITIONING:
00957 case EXIF_TAG_PHOTOMETRIC_INTERPRETATION:
00958 case EXIF_TAG_CUSTOM_RENDERED:
00959 case EXIF_TAG_EXPOSURE_MODE:
00960 case EXIF_TAG_WHITE_BALANCE:
00961 case EXIF_TAG_SCENE_CAPTURE_TYPE:
00962 case EXIF_TAG_GAIN_CONTROL:
00963 case EXIF_TAG_SATURATION:
00964 case EXIF_TAG_CONTRAST:
00965 case EXIF_TAG_SHARPNESS:
00966 CF (e, EXIF_FORMAT_SHORT, val, maxlen);
00967 CC (e, 1, val, maxlen);
00968 v_short = exif_get_short (e->data, o);
00969
00970
00971 for (i = 0; list[i].tag && (list[i].tag != e->tag); i++);
00972 if (!list[i].tag) {
00973 strncpy (val, _("Internal error."), maxlen - 1);
00974 break;
00975 }
00976
00977
00978 for (j = 0; list[i].strings[j] && (j < v_short); j++);
00979 if (!list[i].strings[j])
00980 snprintf (val, maxlen, "%i", v_short);
00981 else
00982 strncpy (val, _(list[i].strings[j]), maxlen - 1);
00983 break;
00984 default:
00985 if (!e->components) break;
00986 switch (e->format) {
00987 case EXIF_FORMAT_UNDEFINED:
00988 break;
00989 case EXIF_FORMAT_BYTE:
00990 case EXIF_FORMAT_SBYTE:
00991 v_byte = e->data[0];
00992 snprintf (val, maxlen, "0x%02x", v_byte);
00993 len = strlen (val);
00994 for (i = 1; i < e->components; i++) {
00995 v_byte = e->data[i];
00996 snprintf (val+len, maxlen-len, ", 0x%02x", v_byte);
00997 len += strlen (val+len);
00998 if (len >= maxlen-1) break;
00999 }
01000 break;
01001 case EXIF_FORMAT_SHORT:
01002 case EXIF_FORMAT_SSHORT:
01003 v_short = exif_get_short (e->data, o);
01004 snprintf (val, maxlen, "%i", v_short);
01005 len = strlen (val);
01006 for (i = 1; i < e->components; i++) {
01007 v_short = exif_get_short (e->data +
01008 exif_format_get_size (e->format) *
01009 i, o);
01010 snprintf (val+len, maxlen-len, ", %i", v_short);
01011 len += strlen (val+len);
01012 if (len >= maxlen-1) break;
01013 }
01014 break;
01015 case EXIF_FORMAT_LONG:
01016 v_long = exif_get_long (e->data, o);
01017 snprintf (val, maxlen, "%li", (long int) v_long);
01018 len = strlen (val);
01019 for (i = 1; i < e->components; i++) {
01020 v_long = exif_get_long (e->data +
01021 exif_format_get_size (e->format) *
01022 i, o);
01023 snprintf (val+len, maxlen-len, ", %li", (unsigned long) v_long);
01024 len += strlen (val+len);
01025 if (len >= maxlen-1) break;
01026 }
01027 break;
01028 case EXIF_FORMAT_SLONG:
01029 v_slong = exif_get_slong (e->data, o);
01030 snprintf (val, maxlen, "%li", (long int) v_slong);
01031 len = strlen (val);
01032 for (i = 1; i < e->components; i++) {
01033 v_long = exif_get_slong (e->data +
01034 exif_format_get_size (e->format) *
01035 i, o);
01036 snprintf (val+len, maxlen-len, ", %li", (long) v_slong);
01037 len += strlen (val+len);
01038 if (len >= maxlen-1) break;
01039 }
01040 break;
01041 case EXIF_FORMAT_ASCII:
01042 strncpy (val, (char *) e->data, MIN (maxlen-1, e->size));
01043 val[MIN (maxlen-1, e->size)] = 0;
01044 break;
01045 case EXIF_FORMAT_RATIONAL:
01046 len = 0;
01047 v_rat = exif_get_rational (e->data, o);
01048 if (v_rat.denominator) {
01049 snprintf (val+len, maxlen-len, "%2.2f", (double)v_rat.numerator / v_rat.denominator);
01050 } else {
01051 snprintf (val+len, maxlen-len, "%i/%i", v_rat.numerator, v_rat.denominator);
01052 }
01053 len += strlen (val+len);
01054 for (i = 1; i < e->components; i++) {
01055 v_rat = exif_get_rational (
01056 e->data + 8 * i, o);
01057 snprintf (val+len, maxlen-len, ", %2.2f",
01058 (double)v_rat.numerator / v_rat.denominator);
01059 len += strlen (val+len);
01060 if (len >= maxlen-1) break;
01061 }
01062 break;
01063 case EXIF_FORMAT_SRATIONAL:
01064 len = 0;
01065 v_srat = exif_get_srational (e->data, o);
01066 if (v_srat.denominator) {
01067 snprintf (val+len, maxlen-len, "%2.2f", (double)v_srat.numerator / v_srat.denominator);
01068 } else {
01069 snprintf (val+len, maxlen-len, "%i/%i", v_srat.numerator, v_srat.denominator);
01070 }
01071 len += strlen (val+len);
01072 for (i = 1; i < e->components; i++) {
01073 v_srat = exif_get_srational (
01074 e->data + 8 * i, o);
01075 snprintf (val+len, maxlen-len, ", %2.2f",
01076 (double)v_srat.numerator / v_srat.denominator);
01077 len += strlen (val+len);
01078 if (len >= maxlen-1) break;
01079 }
01080 break;
01081 case EXIF_FORMAT_DOUBLE:
01082 case EXIF_FORMAT_FLOAT:
01083 default:
01084
01085 break;
01086 }
01087 }
01088
01089 return val;
01090 }
01091
01092 void
01093 exif_entry_initialize (ExifEntry *e, ExifTag tag)
01094 {
01095 time_t t;
01096 struct tm *tm;
01097 ExifRational r;
01098 ExifByteOrder o;
01099
01100
01101 if (!e || !e->parent || e->data || !e->parent->parent)
01102 return;
01103 o = exif_data_get_byte_order (e->parent->parent);
01104
01105 e->tag = tag;
01106 switch (tag) {
01107
01108
01109 case EXIF_TAG_PIXEL_X_DIMENSION:
01110 case EXIF_TAG_PIXEL_Y_DIMENSION:
01111 case EXIF_TAG_EXIF_IFD_POINTER:
01112 case EXIF_TAG_GPS_INFO_IFD_POINTER:
01113 case EXIF_TAG_INTEROPERABILITY_IFD_POINTER:
01114 case EXIF_TAG_JPEG_INTERCHANGE_FORMAT_LENGTH:
01115 case EXIF_TAG_JPEG_INTERCHANGE_FORMAT:
01116 e->components = 1;
01117 e->format = EXIF_FORMAT_LONG;
01118 e->size = exif_format_get_size (e->format) * e->components;
01119 e->data = exif_entry_alloc (e, e->size);
01120 break;
01121
01122
01123 case EXIF_TAG_SUBJECT_LOCATION:
01124 case EXIF_TAG_SENSING_METHOD:
01125 case EXIF_TAG_PHOTOMETRIC_INTERPRETATION:
01126 case EXIF_TAG_COMPRESSION:
01127 case EXIF_TAG_EXPOSURE_MODE:
01128 case EXIF_TAG_WHITE_BALANCE:
01129 case EXIF_TAG_FOCAL_LENGTH_IN_35MM_FILM:
01130 case EXIF_TAG_GAIN_CONTROL:
01131 case EXIF_TAG_SUBJECT_DISTANCE_RANGE:
01132
01133
01134 case EXIF_TAG_IMAGE_WIDTH:
01135 case EXIF_TAG_IMAGE_LENGTH:
01136 case EXIF_TAG_EXPOSURE_PROGRAM:
01137 case EXIF_TAG_LIGHT_SOURCE:
01138 case EXIF_TAG_METERING_MODE:
01139 case EXIF_TAG_CUSTOM_RENDERED:
01140 case EXIF_TAG_SCENE_CAPTURE_TYPE:
01141 case EXIF_TAG_CONTRAST:
01142 case EXIF_TAG_SATURATION:
01143 case EXIF_TAG_SHARPNESS:
01144 e->components = 1;
01145 e->format = EXIF_FORMAT_SHORT;
01146 e->size = exif_format_get_size (e->format) * e->components;
01147 e->data = exif_entry_alloc (e, e->size);
01148 exif_set_short (e->data, o, 0);
01149 break;
01150
01151
01152 case EXIF_TAG_ORIENTATION:
01153 case EXIF_TAG_PLANAR_CONFIGURATION:
01154 case EXIF_TAG_YCBCR_POSITIONING:
01155 e->components = 1;
01156 e->format = EXIF_FORMAT_SHORT;
01157 e->size = exif_format_get_size (e->format) * e->components;
01158 e->data = exif_entry_alloc (e, e->size);
01159 exif_set_short (e->data, o, 1);
01160 break;
01161
01162
01163 case EXIF_TAG_RESOLUTION_UNIT:
01164 case EXIF_TAG_FOCAL_PLANE_RESOLUTION_UNIT:
01165 e->components = 1;
01166 e->format = EXIF_FORMAT_SHORT;
01167 e->size = exif_format_get_size (e->format) * e->components;
01168 e->data = exif_entry_alloc (e, e->size);
01169 exif_set_short (e->data, o, 2);
01170 break;
01171
01172
01173 case EXIF_TAG_SAMPLES_PER_PIXEL:
01174 e->components = 1;
01175 e->format = EXIF_FORMAT_SHORT;
01176 e->size = exif_format_get_size (e->format) * e->components;
01177 e->data = exif_entry_alloc (e, e->size);
01178 exif_set_short (e->data, o, 3);
01179 break;
01180
01181 case EXIF_TAG_BITS_PER_SAMPLE:
01182 e->components = 3;
01183 e->format = EXIF_FORMAT_SHORT;
01184 e->size = exif_format_get_size (e->format) * e->components;
01185 e->data = exif_entry_alloc (e, e->size);
01186 if (!e->data) break;
01187 exif_set_short (e->data, o, 8);
01188 exif_set_short (
01189 e->data + exif_format_get_size (e->format),
01190 o, 8);
01191 exif_set_short (
01192 e->data + 2 * exif_format_get_size (e->format),
01193 o, 8);
01194 break;
01195 case EXIF_TAG_YCBCR_SUB_SAMPLING:
01196 e->components = 2;
01197 e->format = EXIF_FORMAT_SHORT;
01198 e->size = exif_format_get_size (e->format) * e->components;
01199 e->data = exif_entry_alloc (e, e->size);
01200 if (!e->data) break;
01201 exif_set_short (e->data, o, 2);
01202 exif_set_short (
01203 e->data + exif_format_get_size (e->format),
01204 o, 1);
01205 break;
01206
01207
01208 case EXIF_TAG_EXPOSURE_BIAS_VALUE:
01209 case EXIF_TAG_BRIGHTNESS_VALUE:
01210 case EXIF_TAG_SHUTTER_SPEED_VALUE:
01211 e->components = 1;
01212 e->format = EXIF_FORMAT_SRATIONAL;
01213 e->size = exif_format_get_size (e->format) * e->components;
01214 e->data = exif_entry_alloc (e, e->size);
01215 break;
01216
01217
01218 case EXIF_TAG_EXPOSURE_TIME:
01219 case EXIF_TAG_FOCAL_PLANE_X_RESOLUTION:
01220 case EXIF_TAG_FOCAL_PLANE_Y_RESOLUTION:
01221 case EXIF_TAG_EXPOSURE_INDEX:
01222 case EXIF_TAG_FLASH_ENERGY:
01223 case EXIF_TAG_FNUMBER:
01224 case EXIF_TAG_FOCAL_LENGTH:
01225 case EXIF_TAG_SUBJECT_DISTANCE:
01226 case EXIF_TAG_MAX_APERTURE_VALUE:
01227 case EXIF_TAG_APERTURE_VALUE:
01228 case EXIF_TAG_COMPRESSED_BITS_PER_PIXEL:
01229 case EXIF_TAG_PRIMARY_CHROMATICITIES:
01230 case EXIF_TAG_DIGITAL_ZOOM_RATIO:
01231 e->components = 1;
01232 e->format = EXIF_FORMAT_RATIONAL;
01233 e->size = exif_format_get_size (e->format) * e->components;
01234 e->data = exif_entry_alloc (e, e->size);
01235 break;
01236
01237
01238 case EXIF_TAG_X_RESOLUTION:
01239 case EXIF_TAG_Y_RESOLUTION:
01240 e->components = 1;
01241 e->format = EXIF_FORMAT_RATIONAL;
01242 e->size = exif_format_get_size (e->format) * e->components;
01243 e->data = exif_entry_alloc (e, e->size);
01244 r.numerator = 72;
01245 r.denominator = 1;
01246 exif_set_rational (e->data, o, r);
01247 break;
01248
01249
01250 case EXIF_TAG_WHITE_POINT:
01251 e->components = 2;
01252 e->format = EXIF_FORMAT_RATIONAL;
01253 e->size = exif_format_get_size (e->format) * e->components;
01254 e->data = exif_entry_alloc (e, e->size);
01255 break;
01256
01257
01258 case EXIF_TAG_REFERENCE_BLACK_WHITE:
01259 e->components = 6;
01260 e->format = EXIF_FORMAT_RATIONAL;
01261 e->size = exif_format_get_size (e->format) * e->components;
01262 e->data = exif_entry_alloc (e, e->size);
01263 if (!e->data) break;
01264 r.denominator = 1;
01265 r.numerator = 0;
01266 exif_set_rational (e->data, o, r);
01267 r.numerator = 255;
01268 exif_set_rational (
01269 e->data + exif_format_get_size (e->format), o, r);
01270 r.numerator = 0;
01271 exif_set_rational (
01272 e->data + 2 * exif_format_get_size (e->format), o, r);
01273 r.numerator = 255;
01274 exif_set_rational (
01275 e->data + 3 * exif_format_get_size (e->format), o, r);
01276 r.numerator = 0;
01277 exif_set_rational (
01278 e->data + 4 * exif_format_get_size (e->format), o, r);
01279 r.numerator = 255;
01280 exif_set_rational (
01281 e->data + 5 * exif_format_get_size (e->format), o, r);
01282 break;
01283
01284
01285 case EXIF_TAG_DATE_TIME:
01286 case EXIF_TAG_DATE_TIME_ORIGINAL:
01287 case EXIF_TAG_DATE_TIME_DIGITIZED:
01288 t = time (NULL);
01289 tm = localtime (&t);
01290 e->components = 20;
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 snprintf ((char *) e->data, e->size,
01296 "%04i:%02i:%02i %02i:%02i:%02i",
01297 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
01298 tm->tm_hour, tm->tm_min, tm->tm_sec);
01299 break;
01300
01301
01302 case EXIF_TAG_SUB_SEC_TIME:
01303 case EXIF_TAG_SUB_SEC_TIME_ORIGINAL:
01304 case EXIF_TAG_SUB_SEC_TIME_DIGITIZED:
01305 e->components = 0;
01306 e->format = EXIF_FORMAT_ASCII;
01307 e->size = 0;
01308 e->data = NULL;
01309 break;
01310 case EXIF_TAG_IMAGE_DESCRIPTION:
01311 case EXIF_TAG_MAKE:
01312 case EXIF_TAG_MODEL:
01313 case EXIF_TAG_SOFTWARE:
01314 case EXIF_TAG_ARTIST:
01315 e->components = strlen (_("[None]")) + 1;
01316 e->format = EXIF_FORMAT_ASCII;
01317 e->size = exif_format_get_size (e->format) * e->components;
01318 e->data = exif_entry_alloc (e, e->size);
01319 if (!e->data) break;
01320 strncpy ((char *)e->data, _("[None]"), e->size);
01321 break;
01322 case EXIF_TAG_COPYRIGHT:
01323 e->components = (strlen (_("[None]")) + 1) * 2;
01324 e->format = EXIF_FORMAT_ASCII;
01325 e->size = exif_format_get_size (e->format) * e->components;
01326 e->data = exif_entry_alloc (e, e->size);
01327 if (!e->data) break;
01328 strcpy (((char *)e->data) + 0, _("[None]"));
01329 strcpy (((char *)e->data) + strlen (_("[None]")) + 1, _("[None]"));
01330 break;
01331
01332
01333 case EXIF_TAG_MAKER_NOTE:
01334 case EXIF_TAG_USER_COMMENT:
01335 e->components = 0;
01336 e->format = EXIF_FORMAT_UNDEFINED;
01337 e->size = 0;
01338 e->data = NULL;
01339 break;
01340
01341
01342 case EXIF_TAG_SCENE_TYPE:
01343 e->components = 1;
01344 e->format = EXIF_FORMAT_UNDEFINED;
01345 e->size = exif_format_get_size (e->format) * e->components;
01346 e->data = exif_entry_alloc (e, e->size);
01347 if (!e->data) break;
01348 e->data[0] = 0x01;
01349 break;
01350
01351
01352 case EXIF_TAG_FILE_SOURCE:
01353 e->components = 1;
01354 e->format = EXIF_FORMAT_UNDEFINED;
01355 e->size = exif_format_get_size (e->format) * e->components;
01356 e->data = exif_entry_alloc (e, e->size);
01357 if (!e->data) break;
01358 e->data[0] = 0x03;
01359 break;
01360
01361
01362 case EXIF_TAG_FLASH_PIX_VERSION:
01363 e->components = 4;
01364 e->format = EXIF_FORMAT_UNDEFINED;
01365 e->size = exif_format_get_size (e->format) * e->components;
01366 e->data = exif_entry_alloc (e, e->size);
01367 if (!e->data) break;
01368 memcpy (e->data, "0100", 4);
01369 break;
01370
01371
01372 case EXIF_TAG_EXIF_VERSION:
01373 e->components = 4;
01374 e->format = EXIF_FORMAT_UNDEFINED;
01375 e->size = exif_format_get_size (e->format) * e->components;
01376 e->data = exif_entry_alloc (e, e->size);
01377 if (!e->data) break;
01378 memcpy (e->data, "0210", 4);
01379 break;
01380
01381 default:
01382 break;
01383 }
01384 }