3 * Copyright (c) 2001 Lutz Mueller <lutz@users.sourceforge.net>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
23 #include <libexif/exif-entry.h>
24 #include <libexif/exif-ifd.h>
25 #include <libexif/exif-utils.h>
26 #include <libexif/i18n.h>
35 struct _ExifEntryPrivate
37 unsigned int ref_count;
42 /* This function is hidden in exif-data.c */
43 ExifLog *exif_data_get_log (ExifData *);
45 #ifndef NO_VERBOSE_TAG_STRINGS
47 exif_entry_log (ExifEntry *e, ExifLogCode code, const char *format, ...)
52 if (e && e->parent && e->parent->parent)
53 l = exif_data_get_log (e->parent->parent);
54 va_start (args, format);
55 exif_logv (l, code, "ExifEntry", format, args);
59 #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
60 #define exif_entry_log(...) do { } while (0)
61 #elif defined(__GNUC__)
62 #define exif_entry_log(x...) do { } while (0)
64 #define exif_entry_log (void)
69 exif_entry_alloc (ExifEntry *e, unsigned int i)
74 if (!e || !e->priv || !i) return NULL;
76 d = exif_mem_alloc (e->priv->mem, i);
79 if (e->parent && e->parent->parent)
80 l = exif_data_get_log (e->parent->parent);
81 EXIF_LOG_NO_MEMORY (l, "ExifEntry", i);
86 exif_entry_realloc (ExifEntry *e, void *d_orig, unsigned int i)
91 if (!e || !e->priv) return NULL;
93 if (!i) { exif_mem_free (e->priv->mem, d_orig); return NULL; }
95 d = exif_mem_realloc (e->priv->mem, d_orig, i);
98 if (e->parent && e->parent->parent)
99 l = exif_data_get_log (e->parent->parent);
100 EXIF_LOG_NO_MEMORY (l, "ExifEntry", i);
105 exif_entry_new (void)
107 ExifMem *mem = exif_mem_new_default ();
108 ExifEntry *e = exif_entry_new_mem (mem);
110 exif_mem_unref (mem);
116 exif_entry_new_mem (ExifMem *mem)
120 e = exif_mem_alloc (mem, sizeof (ExifEntry));
122 e->priv = exif_mem_alloc (mem, sizeof (ExifEntryPrivate));
123 if (!e->priv) { exif_mem_free (mem, e); return NULL; }
124 e->priv->ref_count = 1;
133 exif_entry_ref (ExifEntry *e)
137 e->priv->ref_count++;
141 exif_entry_unref (ExifEntry *e)
145 e->priv->ref_count--;
146 if (!e->priv->ref_count)
151 exif_entry_free (ExifEntry *e)
156 ExifMem *mem = e->priv->mem;
158 exif_mem_free (mem, e->data);
159 exif_mem_free (mem, e->priv);
160 exif_mem_free (mem, e);
161 exif_mem_unref (mem);
165 /*! Get a value and convert it to an ExifShort.
166 * \bug Not all types are converted that could be converted and no indication
167 * is made when that occurs
169 static inline ExifShort
170 exif_get_short_convert (const unsigned char *buf, ExifFormat format,
174 case EXIF_FORMAT_LONG:
175 return (ExifShort) exif_get_long (buf, order);
176 case EXIF_FORMAT_SLONG:
177 return (ExifShort) exif_get_slong (buf, order);
178 case EXIF_FORMAT_SHORT:
179 return (ExifShort) exif_get_short (buf, order);
180 case EXIF_FORMAT_SSHORT:
181 return (ExifShort) exif_get_sshort (buf, order);
182 case EXIF_FORMAT_BYTE:
183 case EXIF_FORMAT_SBYTE:
184 return (ExifShort) buf[0];
186 /* Unsupported type */
187 return (ExifShort) 0;
192 exif_entry_fix (ExifEntry *e)
199 if (!e || !e->priv) return;
203 /* These tags all need to be of format SHORT. */
204 case EXIF_TAG_YCBCR_SUB_SAMPLING:
205 case EXIF_TAG_SUBJECT_AREA:
206 case EXIF_TAG_COLOR_SPACE:
207 case EXIF_TAG_PLANAR_CONFIGURATION:
208 case EXIF_TAG_SENSING_METHOD:
209 case EXIF_TAG_ORIENTATION:
210 case EXIF_TAG_YCBCR_POSITIONING:
211 case EXIF_TAG_PHOTOMETRIC_INTERPRETATION:
212 case EXIF_TAG_CUSTOM_RENDERED:
213 case EXIF_TAG_EXPOSURE_MODE:
214 case EXIF_TAG_WHITE_BALANCE:
215 case EXIF_TAG_SCENE_CAPTURE_TYPE:
216 case EXIF_TAG_GAIN_CONTROL:
217 case EXIF_TAG_SATURATION:
218 case EXIF_TAG_CONTRAST:
219 case EXIF_TAG_SHARPNESS:
221 case EXIF_FORMAT_LONG:
222 case EXIF_FORMAT_SLONG:
223 case EXIF_FORMAT_BYTE:
224 case EXIF_FORMAT_SBYTE:
225 case EXIF_FORMAT_SSHORT:
226 if (!e->parent || !e->parent->parent) break;
227 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
228 _("Tag '%s' was of format '%s' (which is "
229 "against specification) and has been "
230 "changed to format '%s'."),
231 exif_tag_get_name_in_ifd(e->tag,
232 exif_entry_get_ifd(e)),
233 exif_format_get_name (e->format),
234 exif_format_get_name (EXIF_FORMAT_SHORT));
235 o = exif_data_get_byte_order (e->parent->parent);
236 for (i = 0; i < e->components; i++)
239 exif_format_get_size (
240 EXIF_FORMAT_SHORT), o,
241 exif_get_short_convert (
243 exif_format_get_size (e->format),
245 e->format = EXIF_FORMAT_SHORT;
246 e->size = e->components *
247 exif_format_get_size (e->format);
248 e->data = exif_entry_realloc (e, e->data, e->size);
250 case EXIF_FORMAT_SHORT:
251 /* No conversion necessary */
254 exif_entry_log (e, EXIF_LOG_CODE_CORRUPT_DATA,
255 _("Tag '%s' is of format '%s' (which is "
256 "against specification) but cannot be changed "
258 exif_tag_get_name_in_ifd(e->tag,
259 exif_entry_get_ifd(e)),
260 exif_format_get_name (e->format),
261 exif_format_get_name (EXIF_FORMAT_SHORT));
266 /* All these tags need to be of format 'Rational'. */
267 case EXIF_TAG_FNUMBER:
268 case EXIF_TAG_APERTURE_VALUE:
269 case EXIF_TAG_EXPOSURE_TIME:
270 case EXIF_TAG_FOCAL_LENGTH:
272 case EXIF_FORMAT_SRATIONAL:
273 if (!e->parent || !e->parent->parent) break;
274 o = exif_data_get_byte_order (e->parent->parent);
275 for (i = 0; i < e->components; i++) {
276 sr = exif_get_srational (e->data + i *
277 exif_format_get_size (
278 EXIF_FORMAT_SRATIONAL), o);
279 r.numerator = (ExifLong) sr.numerator;
280 r.denominator = (ExifLong) sr.denominator;
281 exif_set_rational (e->data + i *
282 exif_format_get_size (
283 EXIF_FORMAT_RATIONAL), o, r);
285 e->format = EXIF_FORMAT_RATIONAL;
286 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
287 _("Tag '%s' was of format '%s' (which is "
288 "against specification) and has been "
289 "changed to format '%s'."),
290 exif_tag_get_name_in_ifd(e->tag,
291 exif_entry_get_ifd(e)),
292 exif_format_get_name (EXIF_FORMAT_SRATIONAL),
293 exif_format_get_name (EXIF_FORMAT_RATIONAL));
300 /* All these tags need to be of format 'SRational'. */
301 case EXIF_TAG_EXPOSURE_BIAS_VALUE:
302 case EXIF_TAG_BRIGHTNESS_VALUE:
303 case EXIF_TAG_SHUTTER_SPEED_VALUE:
305 case EXIF_FORMAT_RATIONAL:
306 if (!e->parent || !e->parent->parent) break;
307 o = exif_data_get_byte_order (e->parent->parent);
308 for (i = 0; i < e->components; i++) {
309 r = exif_get_rational (e->data + i *
310 exif_format_get_size (
311 EXIF_FORMAT_RATIONAL), o);
312 sr.numerator = (ExifLong) r.numerator;
313 sr.denominator = (ExifLong) r.denominator;
314 exif_set_srational (e->data + i *
315 exif_format_get_size (
316 EXIF_FORMAT_SRATIONAL), o, sr);
318 e->format = EXIF_FORMAT_SRATIONAL;
319 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
320 _("Tag '%s' was of format '%s' (which is "
321 "against specification) and has been "
322 "changed to format '%s'."),
323 exif_tag_get_name_in_ifd(e->tag,
324 exif_entry_get_ifd(e)),
325 exif_format_get_name (EXIF_FORMAT_RATIONAL),
326 exif_format_get_name (EXIF_FORMAT_SRATIONAL));
333 case EXIF_TAG_USER_COMMENT:
335 /* Format needs to be UNDEFINED. */
336 if (e->format != EXIF_FORMAT_UNDEFINED) {
337 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
338 _("Tag 'UserComment' had invalid format '%s'. "
339 "Format has been set to 'undefined'."),
340 exif_format_get_name (e->format));
341 e->format = EXIF_FORMAT_UNDEFINED;
344 /* Some packages like Canon ZoomBrowser EX 4.5 store
345 only one zero byte followed by 7 bytes of rubbish */
346 if ((e->size >= 8) && (e->data[0] == 0)) {
347 memcpy(e->data, "\0\0\0\0\0\0\0\0", 8);
350 /* There need to be at least 8 bytes. */
352 e->data = exif_entry_realloc (e, e->data, 8 + e->size);
360 memmove (e->data + 8, e->data, e->size);
361 memcpy (e->data, "ASCII\0\0\0", 8);
364 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
365 _("Tag 'UserComment' has been expanded to at "
366 "least 8 bytes in order to follow the "
372 * If the first 8 bytes are empty and real data starts
373 * afterwards, let's assume ASCII and claim the 8 first
374 * bytes for the format specifyer.
376 for (i = 0; (i < e->size) && !e->data[i]; i++);
377 if (!i) for ( ; (i < e->size) && (e->data[i] == ' '); i++);
378 if ((i >= 8) && (i < e->size)) {
379 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
380 _("Tag 'UserComment' is not empty but does not "
381 "start with a format identifier. "
382 "This has been fixed."));
383 memcpy (e->data, "ASCII\0\0\0", 8);
388 * First 8 bytes need to follow the specification. If they don't,
391 if (memcmp (e->data, "ASCII\0\0\0" , 8) &&
392 memcmp (e->data, "UNICODE\0" , 8) &&
393 memcmp (e->data, "JIS\0\0\0\0\0" , 8) &&
394 memcmp (e->data, "\0\0\0\0\0\0\0\0", 8)) {
395 e->data = exif_entry_realloc (e, e->data, 8 + e->size);
403 memmove (e->data + 8, e->data, e->size);
404 memcpy (e->data, "ASCII\0\0\0", 8);
407 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
408 _("Tag 'UserComment' did not start with a "
409 "format identifier. This has been fixed."));
419 /*! Format the value of an ExifEntry for human display in a generic way.
420 * The output is localized. The formatting is independent of the tag number.
421 * \pre The buffer at val is entirely cleared to 0. This guarantees that the
422 * resulting string will be NUL terminated.
423 * \pre The ExifEntry is already a member of an ExifData.
424 * \param[in] e EXIF entry
425 * \param[out] val buffer in which to store value
426 * \param[in] maxlen one less than the length of the buffer val
429 exif_entry_format_value(ExifEntry *e, char *val, size_t maxlen)
436 ExifSRational v_srat;
440 const ExifByteOrder o = exif_data_get_byte_order (e->parent->parent);
445 case EXIF_FORMAT_UNDEFINED:
446 snprintf (val, maxlen, _("%i bytes undefined data"), e->size);
448 case EXIF_FORMAT_BYTE:
449 case EXIF_FORMAT_SBYTE:
451 snprintf (val, maxlen, "0x%02x", v_byte);
452 maxlen -= strlen (val);
453 for (i = 1; i < e->components; i++) {
455 snprintf (b, sizeof (b), ", 0x%02x", v_byte);
456 strncat (val, b, maxlen);
457 maxlen -= strlen (b);
458 if ((signed)maxlen <= 0) break;
461 case EXIF_FORMAT_SHORT:
462 v_short = exif_get_short (e->data, o);
463 snprintf (val, maxlen, "%u", v_short);
464 maxlen -= strlen (val);
465 for (i = 1; i < e->components; i++) {
466 v_short = exif_get_short (e->data +
467 exif_format_get_size (e->format) * i, o);
468 snprintf (b, sizeof (b), ", %u", v_short);
469 strncat (val, b, maxlen);
470 maxlen -= strlen (b);
471 if ((signed)maxlen <= 0) break;
474 case EXIF_FORMAT_SSHORT:
475 v_sshort = exif_get_sshort (e->data, o);
476 snprintf (val, maxlen, "%i", v_sshort);
477 maxlen -= strlen (val);
478 for (i = 1; i < e->components; i++) {
479 v_sshort = exif_get_short (e->data +
480 exif_format_get_size (e->format) *
482 snprintf (b, sizeof (b), ", %i", v_sshort);
483 strncat (val, b, maxlen);
484 maxlen -= strlen (b);
485 if ((signed)maxlen <= 0) break;
488 case EXIF_FORMAT_LONG:
489 v_long = exif_get_long (e->data, o);
490 snprintf (val, maxlen, "%lu", (long int) v_long);
491 maxlen -= strlen (val);
492 for (i = 1; i < e->components; i++) {
493 v_long = exif_get_long (e->data +
494 exif_format_get_size (e->format) *
496 snprintf (b, sizeof (b), ", %lu", (long int) v_long);
497 strncat (val, b, maxlen);
498 maxlen -= strlen (b);
499 if ((signed)maxlen <= 0) break;
502 case EXIF_FORMAT_SLONG:
503 v_slong = exif_get_slong (e->data, o);
504 snprintf (val, maxlen, "%li", (long) v_slong);
505 maxlen -= strlen (val);
506 for (i = 1; i < e->components; i++) {
507 v_slong = exif_get_slong (e->data +
508 exif_format_get_size (e->format) * i, o);
509 snprintf (b, sizeof (b), ", %li", (long) v_slong);
510 strncat (val, b, maxlen);
511 maxlen -= strlen (b);
512 if ((signed)maxlen <= 0) break;
515 case EXIF_FORMAT_ASCII:
516 strncpy (val, (char *) e->data, MIN (maxlen, e->size));
518 case EXIF_FORMAT_RATIONAL:
519 v_rat = exif_get_rational (e->data, o);
520 if (v_rat.denominator)
521 snprintf (val, maxlen, "%2.2lf",
522 (double) v_rat.numerator /
523 (double) v_rat.denominator);
525 snprintf (val, maxlen, "%lu/%lu",
526 (unsigned long) v_rat.numerator,
527 (unsigned long) v_rat.denominator);
528 maxlen -= strlen (val);
529 for (i = 1; i < e->components; i++) {
530 v_rat = exif_get_rational (
532 if (v_rat.denominator)
533 snprintf (b, sizeof (b), ", %2.2lf",
534 (double) v_rat.numerator /
535 (double) v_rat.denominator);
537 snprintf (b, sizeof (b), ", %lu/%lu",
538 (unsigned long) v_rat.numerator,
539 (unsigned long) v_rat.denominator);
540 strncat (val, b, maxlen);
541 maxlen -= strlen (b);
542 if ((signed) maxlen <= 0) break;
545 case EXIF_FORMAT_SRATIONAL:
546 v_srat = exif_get_srational (e->data, o);
547 if (v_srat.denominator) {
548 snprintf (val, maxlen, "%2.2f",
549 (double)v_srat.numerator / v_srat.denominator);
551 snprintf (val, maxlen, "%li/%li",
552 (long) v_srat.numerator,
553 (long) v_srat.denominator);
555 maxlen -= strlen (val);
556 for (i = 1; i < e->components; i++) {
557 v_srat = exif_get_srational (
559 if (v_srat.denominator)
560 snprintf (b, sizeof (b), ", %2.2f",
561 (double)v_srat.numerator / v_srat.denominator);
563 snprintf (b, sizeof (b), ", %li/%li",
564 (long) v_srat.numerator,
565 (long) v_srat.denominator);
566 strncat (val, b, maxlen);
567 maxlen -= strlen (b);
568 if ((signed) maxlen <= 0) break;
571 case EXIF_FORMAT_DOUBLE:
572 case EXIF_FORMAT_FLOAT:
574 snprintf (val, maxlen, _("%i bytes unsupported data type"),
581 exif_entry_dump (ExifEntry *e, unsigned int indent)
587 for (i = 0; i < 2 * indent; i++)
594 printf ("%sTag: 0x%x ('%s')\n", buf, e->tag,
595 exif_tag_get_name (e->tag));
596 printf ("%s Format: %i ('%s')\n", buf, e->format,
597 exif_format_get_name (e->format));
598 printf ("%s Components: %i\n", buf, (int) e->components);
599 printf ("%s Size: %i\n", buf, e->size);
600 printf ("%s Value: %s\n", buf, exif_entry_get_value (e, value, sizeof(value)));
603 #define CF(entry,target,v,maxlen) \
605 if (entry->format != target) { \
606 exif_entry_log (entry, EXIF_LOG_CODE_CORRUPT_DATA, \
607 _("The tag '%s' contains data of an invalid " \
608 "format ('%s', expected '%s')."), \
609 exif_tag_get_name (entry->tag), \
610 exif_format_get_name (entry->format), \
611 exif_format_get_name (target)); \
616 #define CC(entry,target,v,maxlen) \
618 if (entry->components != target) { \
619 exif_entry_log (entry, EXIF_LOG_CODE_CORRUPT_DATA, \
620 _("The tag '%s' contains an invalid number of " \
621 "components (%i, expected %i)."), \
622 exif_tag_get_name (entry->tag), \
623 (int) entry->components, (int) target); \
628 static const struct {
630 const char *strings[10];
632 #ifndef NO_VERBOSE_TAG_DATA
633 { EXIF_TAG_PLANAR_CONFIGURATION,
634 { N_("chunky format"), N_("planar format"), NULL}},
635 { EXIF_TAG_SENSING_METHOD,
636 { "", N_("Not defined"), N_("One-chip color area sensor"),
637 N_("Two-chip color area sensor"), N_("Three-chip color area sensor"),
638 N_("Color sequential area sensor"), "", N_("Trilinear sensor"),
639 N_("Color sequential linear sensor"), NULL}},
640 { EXIF_TAG_ORIENTATION,
641 { "", N_("top - left"), N_("top - right"), N_("bottom - right"),
642 N_("bottom - left"), N_("left - top"), N_("right - top"),
643 N_("right - bottom"), N_("left - bottom"), NULL}},
644 { EXIF_TAG_YCBCR_POSITIONING,
645 { "", N_("centered"), N_("co-sited"), NULL}},
646 { EXIF_TAG_PHOTOMETRIC_INTERPRETATION,
647 { N_("Reversed mono"), N_("Normal mono"), N_("RGB"), N_("Palette"), "",
648 N_("CMYK"), N_("YCbCr"), "", N_("CieLAB"), NULL}},
649 { EXIF_TAG_CUSTOM_RENDERED,
650 { N_("Normal process"), N_("Custom process"), NULL}},
651 { EXIF_TAG_EXPOSURE_MODE,
652 { N_("Auto exposure"), N_("Manual exposure"), N_("Auto bracket"), NULL}},
653 { EXIF_TAG_WHITE_BALANCE,
654 { N_("Auto white balance"), N_("Manual white balance"), NULL}},
655 { EXIF_TAG_SCENE_CAPTURE_TYPE,
656 { N_("Standard"), N_("Landscape"), N_("Portrait"),
657 N_("Night scene"), NULL}},
658 { EXIF_TAG_GAIN_CONTROL,
659 { N_("Normal"), N_("Low gain up"), N_("High gain up"),
660 N_("Low gain down"), N_("High gain down"), NULL}},
661 { EXIF_TAG_SATURATION,
662 { N_("Normal"), N_("Low saturation"), N_("High saturation"), NULL}},
663 { EXIF_TAG_CONTRAST , {N_("Normal"), N_("Soft"), N_("Hard"), NULL}},
664 { EXIF_TAG_SHARPNESS, {N_("Normal"), N_("Soft"), N_("Hard"), NULL}},
669 static const struct {
673 const char *values[4];
676 #ifndef NO_VERBOSE_TAG_DATA
677 { EXIF_TAG_METERING_MODE,
678 { { 0, {N_("Unknown"), NULL}},
679 { 1, {N_("Average"), N_("avg"), NULL}},
680 { 2, {N_("Center-Weighted Average"), N_("Center-Weight"), NULL}},
681 { 3, {N_("Spot"), NULL}},
682 { 4, {N_("Multi Spot"), NULL}},
683 { 5, {N_("Pattern"), NULL}},
684 { 6, {N_("Partial"), NULL}},
685 {255, {N_("Other"), NULL}},
687 { EXIF_TAG_COMPRESSION,
688 { {1, {N_("Uncompressed"), NULL}},
689 {5, {N_("LZW compression"), NULL}},
690 {6, {N_("JPEG compression"), NULL}},
691 {7, {N_("JPEG compression"), NULL}},
692 {8, {N_("Deflate/ZIP compression"), NULL}},
693 {32773, {N_("PackBits compression"), NULL}},
695 { EXIF_TAG_LIGHT_SOURCE,
696 { { 0, {N_("Unknown"), NULL}},
697 { 1, {N_("Daylight"), NULL}},
698 { 2, {N_("Fluorescent"), NULL}},
699 { 3, {N_("Tungsten incandescent light"), N_("Tungsten"), NULL}},
700 { 4, {N_("Flash"), NULL}},
701 { 9, {N_("Fine weather"), NULL}},
702 { 10, {N_("Cloudy weather"), N_("Cloudy"), NULL}},
703 { 11, {N_("Shade"), NULL}},
704 { 12, {N_("Daylight fluorescent"), NULL}},
705 { 13, {N_("Day white fluorescent"), NULL}},
706 { 14, {N_("Cool white fluorescent"), NULL}},
707 { 15, {N_("White fluorescent"), NULL}},
708 { 17, {N_("Standard light A"), NULL}},
709 { 18, {N_("Standard light B"), NULL}},
710 { 19, {N_("Standard light C"), NULL}},
711 { 20, {N_("D55"), NULL}},
712 { 21, {N_("D65"), NULL}},
713 { 22, {N_("D75"), NULL}},
714 { 24, {N_("ISO studio tungsten"),NULL}},
715 {255, {N_("Other"), NULL}},
717 { EXIF_TAG_FOCAL_PLANE_RESOLUTION_UNIT,
718 { {2, {N_("Inch"), N_("in"), NULL}},
719 {3, {N_("Centimeter"), N_("cm"), NULL}},
721 { EXIF_TAG_RESOLUTION_UNIT,
722 { {2, {N_("Inch"), N_("in"), NULL}},
723 {3, {N_("Centimeter"), N_("cm"), NULL}},
725 { EXIF_TAG_EXPOSURE_PROGRAM,
726 { {0, {N_("Not defined"), NULL}},
727 {1, {N_("Manual"), NULL}},
728 {2, {N_("Normal program"), N_("Normal"), NULL}},
729 {3, {N_("Aperture priority"), N_("Aperture"), NULL}},
730 {4, {N_("Shutter priority"),N_("Shutter"), NULL}},
731 {5, {N_("Creative program (biased toward depth of field)"),
732 N_("Creative"), NULL}},
733 {6, {N_("Creative program (biased toward fast shutter speed)"),
734 N_("Action"), NULL}},
735 {7, {N_("Portrait mode (for closeup photos with the background out "
736 "of focus)"), N_("Portrait"), NULL}},
737 {8, {N_("Landscape mode (for landscape photos with the background "
738 "in focus)"), N_("Landscape"), NULL}},
741 { {0x0000, {N_("Flash did not fire"), N_("no flash"), NULL}},
742 {0x0001, {N_("Flash fired"), N_("flash"), N_("Yes"), NULL}},
743 {0x0005, {N_("Strobe return light not detected"), N_("W/o strobe"),
745 {0x0007, {N_("Strobe return light detected"), N_("W. strobe"), NULL}},
746 {0x0008, {N_("Flash did not fire"), NULL}}, /* Olympus E-330 */
747 {0x0009, {N_("Flash fired, compulsory flash mode"), NULL}},
748 {0x000d, {N_("Flash fired, compulsory flash mode, return light "
749 "not detected"), NULL}},
750 {0x000f, {N_("Flash fired, compulsory flash mode, return light "
752 {0x0010, {N_("Flash did not fire, compulsory flash mode"), NULL}},
753 {0x0018, {N_("Flash did not fire, auto mode"), NULL}},
754 {0x0019, {N_("Flash fired, auto mode"), NULL}},
755 {0x001d, {N_("Flash fired, auto mode, return light not detected"),
757 {0x001f, {N_("Flash fired, auto mode, return light detected"), NULL}},
758 {0x0020, {N_("No flash function"),NULL}},
759 {0x0041, {N_("Flash fired, red-eye reduction mode"), NULL}},
760 {0x0045, {N_("Flash fired, red-eye reduction mode, return light "
761 "not detected"), NULL}},
762 {0x0047, {N_("Flash fired, red-eye reduction mode, return light "
764 {0x0049, {N_("Flash fired, compulsory flash mode, red-eye reduction "
766 {0x004d, {N_("Flash fired, compulsory flash mode, red-eye reduction "
767 "mode, return light not detected"), NULL}},
768 {0x004f, {N_("Flash fired, compulsory flash mode, red-eye reduction mode, "
769 "return light detected"), NULL}},
770 {0x0058, {N_("Flash did not fire, auto mode, red-eye reduction mode"), NULL}},
771 {0x0059, {N_("Flash fired, auto mode, red-eye reduction mode"), NULL}},
772 {0x005d, {N_("Flash fired, auto mode, return light not detected, "
773 "red-eye reduction mode"), NULL}},
774 {0x005f, {N_("Flash fired, auto mode, return light detected, "
775 "red-eye reduction mode"), NULL}},
777 { EXIF_TAG_SUBJECT_DISTANCE_RANGE,
778 { {0, {N_("Unknown"), N_("?"), NULL}},
779 {1, {N_("Macro"), NULL}},
780 {2, {N_("Close view"), N_("Close"), NULL}},
781 {3, {N_("Distant view"), N_("Distant"), NULL}},
783 { EXIF_TAG_COLOR_SPACE,
784 { {1, {N_("sRGB"), NULL}},
785 {2, {N_("Adobe RGB"), NULL}},
786 {0xffff, {N_("Uncalibrated"), NULL}},
789 {0, { { 0, {NULL}}} }
793 exif_entry_get_value (ExifEntry *e, char *val, unsigned int maxlen)
795 unsigned int i, j, k;
796 const unsigned char *t;
797 ExifShort v_short, v_short2, v_short3, v_short4;
800 ExifSRational v_srat;
806 static const struct {
819 /* FIXME: This belongs to somewhere else. */
820 /* libexif should use the default system locale.
821 * If an application specifically requires UTF-8, then we
822 * must give the application a way to tell libexif that.
824 * bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
826 bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
828 /* make sure the returned string is zero terminated */
829 memset (val, 0, maxlen);
831 memset (b, 0, sizeof (b));
833 /* We need the byte order */
834 if (!e || !e->parent || !e->parent->parent)
836 o = exif_data_get_byte_order (e->parent->parent);
839 if (e->size != e->components * exif_format_get_size (e->format)) {
840 snprintf (val, maxlen, _("Invalid size of entry (%i, "
841 "expected %li x %i)."), e->size, e->components,
842 exif_format_get_size (e->format));
847 case EXIF_TAG_USER_COMMENT:
850 * The specification says UNDEFINED, but some
851 * manufacturers don't care and use ASCII. If this is the
852 * case here, only refuse to read it if there is no chance
853 * of finding readable data.
855 if ((e->format != EXIF_FORMAT_ASCII) ||
857 ( memcmp (e->data, "ASCII\0\0\0" , 8) &&
858 memcmp (e->data, "UNICODE\0" , 8) &&
859 memcmp (e->data, "JIS\0\0\0\0\0", 8) &&
860 memcmp (e->data, "\0\0\0\0\0\0\0\0", 8)))
861 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
864 * Note that, according to the specification (V2.1, p 40),
865 * the user comment field does not have to be
868 if ((e->size >= 8) && !memcmp (e->data, "ASCII\0\0\0", 8)) {
869 strncpy (val, (char *) e->data + 8, MIN (e->size - 8, maxlen));
872 if ((e->size >= 8) && !memcmp (e->data, "UNICODE\0", 8)) {
873 strncpy (val, _("Unsupported UNICODE string"), maxlen);
874 /* FIXME: use iconv to convert into the locale encoding.
875 * EXIF 2.2 implies (but does not say) that this encoding is
880 if ((e->size >= 8) && !memcmp (e->data, "JIS\0\0\0\0\0", 8)) {
881 strncpy (val, _("Unsupported JIS string"), maxlen);
882 /* FIXME: use iconv to convert into the locale encoding */
886 /* Check if there is really some information in the tag. */
887 for (i = 0; (i < e->size) &&
888 (!e->data[i] || (e->data[i] == ' ')); i++);
889 if (i == e->size) break;
892 * If we reach this point, the tag does not
893 * comply with the standard and seems to contain data.
894 * Print as much as possible.
896 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
897 _("Tag UserComment does not comply "
898 "with standard but contains data."));
899 for (; (i < e->size) && (strlen (val) < maxlen - 1); i++) {
900 exif_entry_log (e, EXIF_LOG_CODE_DEBUG,
901 _("Byte at position %i: 0x%02x"), i, e->data[i]);
903 isprint (e->data[i]) ? e->data[i] : '.';
907 case EXIF_TAG_EXIF_VERSION:
908 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
909 CC (e, 4, val, maxlen);
910 strncpy (val, _("Unknown Exif Version"), maxlen);
911 for (i = 0; *versions[i].label; i++) {
912 if (!memcmp (e->data, versions[i].label, 4)) {
913 snprintf (val, maxlen,
914 _("Exif Version %d.%d"),
921 case EXIF_TAG_FLASH_PIX_VERSION:
922 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
923 CC (e, 4, val, maxlen);
924 if (!memcmp (e->data, "0100", 4))
925 strncpy (val, _("FlashPix Version 1.0"), maxlen);
926 else if (!memcmp (e->data, "0101", 4))
927 strncpy (val, _("FlashPix Version 1.01"), maxlen);
929 strncpy (val, _("Unknown FlashPix Version"), maxlen);
931 case EXIF_TAG_COPYRIGHT:
932 CF (e, EXIF_FORMAT_ASCII, val, maxlen);
935 * First part: Photographer.
936 * Some cameras store a string like " " here. Ignore it.
938 if (e->size && e->data &&
939 (strspn ((char *)e->data, " ") != strlen ((char *) e->data)))
940 strncpy (val, (char *) e->data, MIN (maxlen, e->size));
942 strncpy (val, _("[None]"), maxlen);
943 strncat (val, " ", maxlen - strlen (val));
944 strncat (val, _("(Photographer)"), maxlen - strlen (val));
946 /* Second part: Editor. */
947 strncat (val, " - ", maxlen - strlen (val));
948 if (e->size && e->data) {
950 t = e->data + strlen ((char *) e->data) + 1;
951 ts = e->data + e->size - t;
952 if ((ts > 0) && (strspn ((char *)t, " ") != ts))
953 strncat (val, (char *)t, MIN (maxlen - strlen (val), ts));
955 strncat (val, _("[None]"), maxlen - strlen (val));
957 strncat (val, " ", maxlen - strlen (val));
958 strncat (val, _("(Editor)"), maxlen - strlen (val));
961 case EXIF_TAG_FNUMBER:
962 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
963 CC (e, 1, val, maxlen);
964 v_rat = exif_get_rational (e->data, o);
965 if (!v_rat.denominator) {
966 exif_entry_format_value(e, val, maxlen);
969 d = (double) v_rat.numerator / (double) v_rat.denominator;
970 snprintf (val, maxlen, "f/%.01lf", d);
972 case EXIF_TAG_APERTURE_VALUE:
973 case EXIF_TAG_MAX_APERTURE_VALUE:
974 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
975 CC (e, 1, val, maxlen);
976 v_rat = exif_get_rational (e->data, o);
977 if (!v_rat.denominator) {
978 exif_entry_format_value(e, val, maxlen);
981 d = (double) v_rat.numerator / (double) v_rat.denominator;
982 snprintf (val, maxlen, _("%.02lf EV"), d);
983 snprintf (b, sizeof (b), _(" (f/%.01f)"), pow (2, d / 2.));
984 if (maxlen > strlen (val) + strlen (b))
985 strncat (val, b, maxlen - strlen (val) - 1);
987 case EXIF_TAG_FOCAL_LENGTH:
988 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
989 CC (e, 1, val, maxlen);
990 v_rat = exif_get_rational (e->data, o);
991 if (!v_rat.denominator) {
992 exif_entry_format_value(e, val, maxlen);
997 * For calculation of the 35mm equivalent,
998 * Minolta cameras need a multiplier that depends on the
1002 entry = exif_content_get_entry (
1003 e->parent->parent->ifd[EXIF_IFD_0], EXIF_TAG_MAKE);
1004 if (entry && entry->data &&
1005 !strncmp ((char *)entry->data, "Minolta", 7)) {
1006 entry = exif_content_get_entry (
1007 e->parent->parent->ifd[EXIF_IFD_0],
1009 if (entry && entry->data) {
1010 if (!strncmp ((char *)entry->data, "DiMAGE 7", 8))
1012 else if (!strncmp ((char *)entry->data, "DiMAGE 5", 8))
1017 snprintf (b, sizeof (b), _(" (35 equivalent: %d mm)"),
1018 (int) (d * (double) v_rat.numerator /
1019 (double) v_rat.denominator));
1021 d = (double) v_rat.numerator / (double) v_rat.denominator;
1022 snprintf (val, maxlen, "%.1lf mm", d);
1023 if (maxlen > strlen (val) + strlen (b))
1024 strncat (val, b, maxlen - strlen (val) - 1);
1026 case EXIF_TAG_SUBJECT_DISTANCE:
1027 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
1028 CC (e, 1, val, maxlen);
1029 v_rat = exif_get_rational (e->data, o);
1030 if (!v_rat.denominator) {
1031 exif_entry_format_value(e, val, maxlen);
1034 d = (double) v_rat.numerator / (double) v_rat.denominator;
1035 snprintf (val, maxlen, "%.1lf m", d);
1037 case EXIF_TAG_EXPOSURE_TIME:
1038 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
1039 CC (e, 1, val, maxlen);
1040 v_rat = exif_get_rational (e->data, o);
1041 if (!v_rat.denominator) {
1042 exif_entry_format_value(e, val, maxlen);
1045 d = (double) v_rat.numerator / (double) v_rat.denominator;
1047 snprintf (val, maxlen, _("1/%d"), (int) (0.5 + 1. / d));
1049 snprintf (val, maxlen, _("%d"), (int) d);
1050 if (maxlen > strlen (val) + strlen (_(" sec.")))
1051 strncat (val, _(" sec."), maxlen - strlen (val) - 1);
1053 case EXIF_TAG_SHUTTER_SPEED_VALUE:
1054 CF (e, EXIF_FORMAT_SRATIONAL, val, maxlen);
1055 CC (e, 1, val, maxlen);
1056 v_srat = exif_get_srational (e->data, o);
1057 if (!v_srat.denominator) {
1058 exif_entry_format_value(e, val, maxlen);
1061 d = (double) v_srat.numerator / (double) v_srat.denominator;
1062 snprintf (val, maxlen, _("%.02f EV"), d);
1063 snprintf (b, sizeof (b), " (APEX: %i)", (int) pow (sqrt(2), d));
1064 if (maxlen > strlen (val) + strlen (b))
1065 strncat (val, b, maxlen - strlen (val) - 1);
1066 d = 1. / pow (2, d);
1068 snprintf (b, sizeof (b), _(" 1/%d sec.)"), (int) (1. / d));
1070 snprintf (b, sizeof (b), _(" %d sec.)"), (int) d);
1071 if (maxlen > strlen (val) + strlen (b)) {
1072 val[strlen (val) - 1] = ',';
1073 strncat (val, b, maxlen - strlen (val) - 1);
1076 case EXIF_TAG_BRIGHTNESS_VALUE:
1077 CF (e, EXIF_FORMAT_SRATIONAL, val, maxlen);
1078 CC (e, 1, val, maxlen);
1079 v_srat = exif_get_srational (e->data, o);
1080 if (!v_srat.denominator) {
1081 exif_entry_format_value(e, val, maxlen);
1084 d = (double) v_srat.numerator / (double) v_srat.denominator;
1085 snprintf (val, maxlen, _("%.02f EV"), d);
1086 snprintf (b, sizeof (b), _(" (%.02f cd/m^2)"),
1087 1. / (M_PI * 0.3048 * 0.3048) * pow (2, d));
1088 if (maxlen > strlen (val) + strlen (b))
1089 strncat (val, b, maxlen - strlen (val) - 1);
1091 case EXIF_TAG_FILE_SOURCE:
1092 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
1093 CC (e, 1, val, maxlen);
1094 v_byte = e->data[0];
1096 strncpy (val, _("DSC"), maxlen);
1098 snprintf (val, maxlen, _("Internal error (unknown "
1099 "value %i)"), v_byte);
1101 case EXIF_TAG_COMPONENTS_CONFIGURATION:
1102 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
1103 CC (e, 4, val, maxlen);
1104 for (i = 0; i < 4; i++) {
1105 switch (e->data[i]) {
1106 case 0: c = _("-"); break;
1107 case 1: c = _("Y"); break;
1108 case 2: c = _("Cb"); break;
1109 case 3: c = _("Cr"); break;
1110 case 4: c = _("R"); break;
1111 case 5: c = _("G"); break;
1112 case 6: c = _("B"); break;
1113 default: c = _("reserved"); break;
1115 strncat (val, c, maxlen - strlen (val));
1116 if (i < 3) strncat (val, " ", maxlen - strlen (val));
1119 case EXIF_TAG_EXPOSURE_BIAS_VALUE:
1120 CF (e, EXIF_FORMAT_SRATIONAL, val, maxlen);
1121 CC (e, 1, val, maxlen);
1122 v_srat = exif_get_srational (e->data, o);
1123 if (!v_srat.denominator) {
1124 exif_entry_format_value(e, val, maxlen);
1127 d = (double) v_srat.numerator / (double) v_srat.denominator;
1128 snprintf (val, maxlen, _("%.02f EV"), d);
1130 case EXIF_TAG_SCENE_TYPE:
1131 CF (e, EXIF_FORMAT_UNDEFINED, val, maxlen);
1132 CC (e, 1, val, maxlen);
1133 v_byte = e->data[0];
1135 strncpy (val, _("Directly photographed"), maxlen);
1137 snprintf (val, maxlen, _("Internal error (unknown "
1138 "value %i)"), v_byte);
1140 case EXIF_TAG_YCBCR_SUB_SAMPLING:
1141 CF (e, EXIF_FORMAT_SHORT, val, maxlen);
1142 CC (e, 2, val, maxlen);
1143 v_short = exif_get_short (e->data, o);
1144 v_short2 = exif_get_short (
1145 e->data + exif_format_get_size (e->format),
1147 if ((v_short == 2) && (v_short2 == 1))
1148 strncpy (val, _("YCbCr4:2:2"), maxlen);
1149 else if ((v_short == 2) && (v_short2 == 2))
1150 strncpy (val, _("YCbCr4:2:0"), maxlen);
1152 snprintf (val, maxlen, "%u, %u", v_short, v_short2);
1154 case EXIF_TAG_SUBJECT_AREA:
1155 CF (e, EXIF_FORMAT_SHORT, val, maxlen);
1156 switch (e->components) {
1158 v_short = exif_get_short (e->data, o);
1159 v_short2 = exif_get_short (e->data + 2, o);
1160 snprintf (val, maxlen, "(x,y) = (%i,%i)",
1164 v_short = exif_get_short (e->data, o);
1165 v_short2 = exif_get_short (e->data + 2, o);
1166 v_short3 = exif_get_short (e->data + 4, o);
1167 snprintf (val, maxlen, _("Within distance %i of "
1168 "(x,y) = (%i,%i)"), v_short3, v_short,
1172 v_short = exif_get_short (e->data, o);
1173 v_short2 = exif_get_short (e->data + 2, o);
1174 v_short3 = exif_get_short (e->data + 4, o);
1175 v_short4 = exif_get_short (e->data + 6, o);
1176 snprintf (val, maxlen, _("Within rectangle "
1177 "(width %i, height %i) around "
1178 "(x,y) = (%i,%i)"), v_short3, v_short4,
1182 snprintf (val, maxlen, _("Unexpected number "
1183 "of components (%li, expected 2, 3, or 4)."),
1187 case EXIF_TAG_GPS_VERSION_ID:
1188 /* This is only valid in the GPS IFD */
1189 CF (e, EXIF_FORMAT_BYTE, val, maxlen);
1190 CC (e, 4, val, maxlen);
1191 v_byte = e->data[0];
1192 snprintf (val, maxlen, "%u", v_byte);
1193 maxlen -= strlen (val);
1194 for (i = 1; i < e->components; i++) {
1195 v_byte = e->data[i];
1196 snprintf (b, sizeof (b), ".%u", v_byte);
1197 strncat (val, b, maxlen);
1198 maxlen -= strlen (b);
1199 if ((signed)maxlen <= 0) break;
1202 case EXIF_TAG_INTEROPERABILITY_VERSION:
1203 /* a.k.a. case EXIF_TAG_GPS_LATITUDE: */
1204 /* This tag occurs in EXIF_IFD_INTEROPERABILITY */
1205 if (e->format == EXIF_FORMAT_UNDEFINED) {
1206 strncpy (val, (char *) e->data, MIN (maxlen, e->size));
1209 /* EXIF_TAG_GPS_LATITUDE is the same numerically as
1210 * EXIF_TAG_INTEROPERABILITY_VERSION but in EXIF_IFD_GPS
1212 exif_entry_format_value(e, val, maxlen);
1214 case EXIF_TAG_GPS_ALTITUDE_REF:
1215 /* This is only valid in the GPS IFD */
1216 CF (e, EXIF_FORMAT_BYTE, val, maxlen);
1217 CC (e, 1, val, maxlen);
1218 v_byte = e->data[0];
1220 strncpy (val, _("Sea level"), maxlen);
1221 else if (v_byte == 1)
1222 strncpy (val, _("Sea level reference"), maxlen);
1224 snprintf (val, maxlen, _("Internal error (unknown "
1225 "value %i)"), v_byte);
1227 case EXIF_TAG_GPS_TIME_STAMP:
1228 /* This is only valid in the GPS IFD */
1229 CF (e, EXIF_FORMAT_RATIONAL, val, maxlen);
1230 CC (e, 3, val, maxlen);
1232 v_rat = exif_get_rational (e->data, o);
1233 if (!v_rat.denominator) {
1234 exif_entry_format_value(e, val, maxlen);
1237 i = v_rat.numerator / v_rat.denominator;
1239 v_rat = exif_get_rational (e->data +
1240 exif_format_get_size (e->format),
1242 if (!v_rat.denominator) {
1243 exif_entry_format_value(e, val, maxlen);
1246 j = v_rat.numerator / v_rat.denominator;
1248 v_rat = exif_get_rational (e->data +
1249 2*exif_format_get_size (e->format),
1251 if (!v_rat.denominator) {
1252 exif_entry_format_value(e, val, maxlen);
1255 d = (double) v_rat.numerator / (double) v_rat.denominator;
1256 snprintf (val, maxlen, "%02u:%02u:%05.2f", i, j, d);
1259 case EXIF_TAG_METERING_MODE:
1260 case EXIF_TAG_COMPRESSION:
1261 case EXIF_TAG_LIGHT_SOURCE:
1262 case EXIF_TAG_FOCAL_PLANE_RESOLUTION_UNIT:
1263 case EXIF_TAG_RESOLUTION_UNIT:
1264 case EXIF_TAG_EXPOSURE_PROGRAM:
1265 case EXIF_TAG_FLASH:
1266 case EXIF_TAG_SUBJECT_DISTANCE_RANGE:
1267 case EXIF_TAG_COLOR_SPACE:
1268 CF (e,EXIF_FORMAT_SHORT, val, maxlen);
1269 CC (e, 1, val, maxlen);
1270 v_short = exif_get_short (e->data, o);
1272 /* Search the tag */
1273 for (i = 0; list2[i].tag && (list2[i].tag != e->tag); i++);
1274 if (!list2[i].tag) {
1275 snprintf (val, maxlen, _("Internal error (unknown "
1276 "value %i)"), v_short);
1280 /* Find the value */
1281 for (j = 0; list2[i].elem[j].values[0] &&
1282 (list2[i].elem[j].index < v_short); j++);
1283 if (list2[i].elem[j].index != v_short) {
1284 snprintf (val, maxlen, _("Internal error (unknown "
1285 "value %i)"), v_short);
1289 /* Find a short enough value */
1290 memset (val, 0, maxlen);
1291 for (k = 0; list2[i].elem[j].values[k]; k++) {
1292 size_t l = strlen (_(list2[i].elem[j].values[k]));
1293 if ((maxlen > l) && (strlen (val) < l))
1294 strncpy (val, _(list2[i].elem[j].values[k]), maxlen);
1296 if (!val[0]) snprintf (val, maxlen, "%i", v_short);
1300 case EXIF_TAG_PLANAR_CONFIGURATION:
1301 case EXIF_TAG_SENSING_METHOD:
1302 case EXIF_TAG_ORIENTATION:
1303 case EXIF_TAG_YCBCR_POSITIONING:
1304 case EXIF_TAG_PHOTOMETRIC_INTERPRETATION:
1305 case EXIF_TAG_CUSTOM_RENDERED:
1306 case EXIF_TAG_EXPOSURE_MODE:
1307 case EXIF_TAG_WHITE_BALANCE:
1308 case EXIF_TAG_SCENE_CAPTURE_TYPE:
1309 case EXIF_TAG_GAIN_CONTROL:
1310 case EXIF_TAG_SATURATION:
1311 case EXIF_TAG_CONTRAST:
1312 case EXIF_TAG_SHARPNESS:
1313 CF (e, EXIF_FORMAT_SHORT, val, maxlen);
1314 CC (e, 1, val, maxlen);
1315 v_short = exif_get_short (e->data, o);
1317 /* Search the tag */
1318 for (i = 0; list[i].tag && (list[i].tag != e->tag); i++);
1320 snprintf (val, maxlen, _("Internal error (unknown "
1321 "value %i)"), v_short);
1325 /* Find the value */
1326 for (j = 0; list[i].strings[j] && (j < v_short); j++);
1327 if (!list[i].strings[j])
1328 snprintf (val, maxlen, "%i", v_short);
1329 else if (!*list[i].strings[j])
1330 snprintf (val, maxlen, _("Unknown value %i"), v_short);
1332 strncpy (val, _(list[i].strings[j]), maxlen);
1335 case EXIF_TAG_XP_TITLE:
1336 case EXIF_TAG_XP_COMMENT:
1337 case EXIF_TAG_XP_AUTHOR:
1338 case EXIF_TAG_XP_KEYWORDS:
1339 case EXIF_TAG_XP_SUBJECT:
1340 /* Warning! The texts are converted from UTF16 to UTF8 */
1341 /* FIXME: use iconv to convert into the locale encoding */
1342 exif_convert_utf16_to_utf8(val, (unsigned short*)e->data, MIN(maxlen, e->size));
1346 /* Use a generic value formatting */
1347 exif_entry_format_value(e, val, maxlen);
1355 * \bug Log and report failed exif_mem_malloc() calls.
1358 exif_entry_initialize (ExifEntry *e, ExifTag tag)
1363 /* We need the byte order */
1364 if (!e || !e->parent || e->data || !e->parent->parent)
1366 o = exif_data_get_byte_order (e->parent->parent);
1371 /* LONG, 1 component, no default */
1372 case EXIF_TAG_PIXEL_X_DIMENSION:
1373 case EXIF_TAG_PIXEL_Y_DIMENSION:
1374 case EXIF_TAG_EXIF_IFD_POINTER:
1375 case EXIF_TAG_GPS_INFO_IFD_POINTER:
1376 case EXIF_TAG_INTEROPERABILITY_IFD_POINTER:
1377 case EXIF_TAG_JPEG_INTERCHANGE_FORMAT_LENGTH:
1378 case EXIF_TAG_JPEG_INTERCHANGE_FORMAT:
1380 e->format = EXIF_FORMAT_LONG;
1381 e->size = exif_format_get_size (e->format) * e->components;
1382 e->data = exif_entry_alloc (e, e->size);
1383 if (!e->data) break;
1386 /* SHORT, 1 component, no default */
1387 case EXIF_TAG_SUBJECT_LOCATION:
1388 case EXIF_TAG_SENSING_METHOD:
1389 case EXIF_TAG_PHOTOMETRIC_INTERPRETATION:
1390 case EXIF_TAG_COMPRESSION:
1391 case EXIF_TAG_EXPOSURE_MODE:
1392 case EXIF_TAG_WHITE_BALANCE:
1393 case EXIF_TAG_FOCAL_LENGTH_IN_35MM_FILM:
1394 case EXIF_TAG_GAIN_CONTROL:
1395 case EXIF_TAG_SUBJECT_DISTANCE_RANGE:
1396 case EXIF_TAG_FLASH:
1398 /* SHORT, 1 component, default 0 */
1399 case EXIF_TAG_IMAGE_WIDTH:
1400 case EXIF_TAG_IMAGE_LENGTH:
1401 case EXIF_TAG_EXPOSURE_PROGRAM:
1402 case EXIF_TAG_LIGHT_SOURCE:
1403 case EXIF_TAG_METERING_MODE:
1404 case EXIF_TAG_CUSTOM_RENDERED:
1405 case EXIF_TAG_SCENE_CAPTURE_TYPE:
1406 case EXIF_TAG_CONTRAST:
1407 case EXIF_TAG_SATURATION:
1408 case EXIF_TAG_SHARPNESS:
1410 e->format = EXIF_FORMAT_SHORT;
1411 e->size = exif_format_get_size (e->format) * e->components;
1412 e->data = exif_entry_alloc (e, e->size);
1413 if (!e->data) break;
1414 exif_set_short (e->data, o, 0);
1417 /* SHORT, 1 component, default 1 */
1418 case EXIF_TAG_ORIENTATION:
1419 case EXIF_TAG_PLANAR_CONFIGURATION:
1420 case EXIF_TAG_YCBCR_POSITIONING:
1422 e->format = EXIF_FORMAT_SHORT;
1423 e->size = exif_format_get_size (e->format) * e->components;
1424 e->data = exif_entry_alloc (e, e->size);
1425 if (!e->data) break;
1426 exif_set_short (e->data, o, 1);
1429 /* SHORT, 1 component, default 2 */
1430 case EXIF_TAG_RESOLUTION_UNIT:
1431 case EXIF_TAG_FOCAL_PLANE_RESOLUTION_UNIT:
1433 e->format = EXIF_FORMAT_SHORT;
1434 e->size = exif_format_get_size (e->format) * e->components;
1435 e->data = exif_entry_alloc (e, e->size);
1436 if (!e->data) break;
1437 exif_set_short (e->data, o, 2);
1440 /* SHORT, 1 component, default 3 */
1441 case EXIF_TAG_SAMPLES_PER_PIXEL:
1443 e->format = EXIF_FORMAT_SHORT;
1444 e->size = exif_format_get_size (e->format) * e->components;
1445 e->data = exif_entry_alloc (e, e->size);
1446 if (!e->data) break;
1447 exif_set_short (e->data, o, 3);
1450 case EXIF_TAG_COLOR_SPACE:
1451 /* SHORT, 1 component, default 0xffff */
1453 e->format = EXIF_FORMAT_SHORT;
1454 e->size = exif_format_get_size (e->format) * e->components;
1455 e->data = exif_entry_alloc (e, e->size);
1456 if (!e->data) break;
1457 exif_set_short (e->data, o, 0xffff);
1461 case EXIF_TAG_BITS_PER_SAMPLE:
1463 e->format = EXIF_FORMAT_SHORT;
1464 e->size = exif_format_get_size (e->format) * e->components;
1465 e->data = exif_entry_alloc (e, e->size);
1466 if (!e->data) break;
1467 exif_set_short (e->data, o, 8);
1469 e->data + exif_format_get_size (e->format),
1472 e->data + 2 * exif_format_get_size (e->format),
1475 case EXIF_TAG_YCBCR_SUB_SAMPLING:
1477 e->format = EXIF_FORMAT_SHORT;
1478 e->size = exif_format_get_size (e->format) * e->components;
1479 e->data = exif_entry_alloc (e, e->size);
1480 if (!e->data) break;
1481 exif_set_short (e->data, o, 2);
1483 e->data + exif_format_get_size (e->format),
1487 /* SRATIONAL, 1 component, no default */
1488 case EXIF_TAG_EXPOSURE_BIAS_VALUE:
1489 case EXIF_TAG_BRIGHTNESS_VALUE:
1490 case EXIF_TAG_SHUTTER_SPEED_VALUE:
1492 e->format = EXIF_FORMAT_SRATIONAL;
1493 e->size = exif_format_get_size (e->format) * e->components;
1494 e->data = exif_entry_alloc (e, e->size);
1495 if (!e->data) break;
1498 /* RATIONAL, 1 component, no default */
1499 case EXIF_TAG_EXPOSURE_TIME:
1500 case EXIF_TAG_FOCAL_PLANE_X_RESOLUTION:
1501 case EXIF_TAG_FOCAL_PLANE_Y_RESOLUTION:
1502 case EXIF_TAG_EXPOSURE_INDEX:
1503 case EXIF_TAG_FLASH_ENERGY:
1504 case EXIF_TAG_FNUMBER:
1505 case EXIF_TAG_FOCAL_LENGTH:
1506 case EXIF_TAG_SUBJECT_DISTANCE:
1507 case EXIF_TAG_MAX_APERTURE_VALUE:
1508 case EXIF_TAG_APERTURE_VALUE:
1509 case EXIF_TAG_COMPRESSED_BITS_PER_PIXEL:
1510 case EXIF_TAG_PRIMARY_CHROMATICITIES:
1511 case EXIF_TAG_DIGITAL_ZOOM_RATIO:
1513 e->format = EXIF_FORMAT_RATIONAL;
1514 e->size = exif_format_get_size (e->format) * e->components;
1515 e->data = exif_entry_alloc (e, e->size);
1516 if (!e->data) break;
1519 /* RATIONAL, 1 component, default 72/1 */
1520 case EXIF_TAG_X_RESOLUTION:
1521 case EXIF_TAG_Y_RESOLUTION:
1523 e->format = EXIF_FORMAT_RATIONAL;
1524 e->size = exif_format_get_size (e->format) * e->components;
1525 e->data = exif_entry_alloc (e, e->size);
1526 if (!e->data) break;
1529 exif_set_rational (e->data, o, r);
1532 /* RATIONAL, 2 components, no default */
1533 case EXIF_TAG_WHITE_POINT:
1535 e->format = EXIF_FORMAT_RATIONAL;
1536 e->size = exif_format_get_size (e->format) * e->components;
1537 e->data = exif_entry_alloc (e, e->size);
1538 if (!e->data) break;
1541 /* RATIONAL, 6 components */
1542 case EXIF_TAG_REFERENCE_BLACK_WHITE:
1544 e->format = EXIF_FORMAT_RATIONAL;
1545 e->size = exif_format_get_size (e->format) * e->components;
1546 e->data = exif_entry_alloc (e, e->size);
1547 if (!e->data) break;
1550 exif_set_rational (e->data, o, r);
1553 e->data + exif_format_get_size (e->format), o, r);
1556 e->data + 2 * exif_format_get_size (e->format), o, r);
1559 e->data + 3 * exif_format_get_size (e->format), o, r);
1562 e->data + 4 * exif_format_get_size (e->format), o, r);
1565 e->data + 5 * exif_format_get_size (e->format), o, r);
1568 /* ASCII, 20 components */
1569 case EXIF_TAG_DATE_TIME:
1570 case EXIF_TAG_DATE_TIME_ORIGINAL:
1571 case EXIF_TAG_DATE_TIME_DIGITIZED:
1574 #ifdef HAVE_LOCALTIME_R
1580 #ifdef HAVE_LOCALTIME_R
1581 tm = localtime_r (&t, &tms);
1583 tm = localtime (&t);
1586 e->format = EXIF_FORMAT_ASCII;
1587 e->size = exif_format_get_size (e->format) * e->components;
1588 e->data = exif_entry_alloc (e, e->size);
1589 if (!e->data) break;
1590 snprintf ((char *) e->data, e->size,
1591 "%04i:%02i:%02i %02i:%02i:%02i",
1592 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
1593 tm->tm_hour, tm->tm_min, tm->tm_sec);
1597 /* ASCII, no default */
1598 case EXIF_TAG_SUB_SEC_TIME:
1599 case EXIF_TAG_SUB_SEC_TIME_ORIGINAL:
1600 case EXIF_TAG_SUB_SEC_TIME_DIGITIZED:
1602 e->format = EXIF_FORMAT_ASCII;
1606 case EXIF_TAG_IMAGE_DESCRIPTION:
1608 case EXIF_TAG_MODEL:
1609 case EXIF_TAG_SOFTWARE:
1610 case EXIF_TAG_ARTIST:
1611 e->components = strlen (_("[None]")) + 1;
1612 e->format = EXIF_FORMAT_ASCII;
1613 e->size = exif_format_get_size (e->format) * e->components;
1614 e->data = exif_entry_alloc (e, e->size);
1615 if (!e->data) break;
1616 strncpy ((char *)e->data, _("[None]"), e->size);
1618 case EXIF_TAG_COPYRIGHT:
1619 e->components = (strlen (_("[None]")) + 1) * 2;
1620 e->format = EXIF_FORMAT_ASCII;
1621 e->size = exif_format_get_size (e->format) * e->components;
1622 e->data = exif_entry_alloc (e, e->size);
1623 if (!e->data) break;
1624 strcpy (((char *)e->data) + 0, _("[None]"));
1625 strcpy (((char *)e->data) + strlen (_("[None]")) + 1, _("[None]"));
1628 /* UNDEFINED, no components, no default */
1629 /* Use this if the tag is otherwise unsupported */
1630 case EXIF_TAG_MAKER_NOTE:
1631 case EXIF_TAG_USER_COMMENT:
1634 e->format = EXIF_FORMAT_UNDEFINED;
1639 /* UNDEFINED, 1 component, default 1 */
1640 case EXIF_TAG_SCENE_TYPE:
1642 e->format = EXIF_FORMAT_UNDEFINED;
1643 e->size = exif_format_get_size (e->format) * e->components;
1644 e->data = exif_entry_alloc (e, e->size);
1645 if (!e->data) break;
1649 /* UNDEFINED, 1 component, default 3 */
1650 case EXIF_TAG_FILE_SOURCE:
1652 e->format = EXIF_FORMAT_UNDEFINED;
1653 e->size = exif_format_get_size (e->format) * e->components;
1654 e->data = exif_entry_alloc (e, e->size);
1655 if (!e->data) break;
1659 /* UNDEFINED, 4 components, default 0 1 0 0 */
1660 case EXIF_TAG_FLASH_PIX_VERSION:
1662 e->format = EXIF_FORMAT_UNDEFINED;
1663 e->size = exif_format_get_size (e->format) * e->components;
1664 e->data = exif_entry_alloc (e, e->size);
1665 if (!e->data) break;
1666 memcpy (e->data, "0100", 4);
1669 /* UNDEFINED, 4 components, default 0 2 1 0 */
1670 case EXIF_TAG_EXIF_VERSION:
1672 e->format = EXIF_FORMAT_UNDEFINED;
1673 e->size = exif_format_get_size (e->format) * e->components;
1674 e->data = exif_entry_alloc (e, e->size);
1675 if (!e->data) break;
1676 memcpy (e->data, "0210", 4);