Lines Matching refs:data
1 /* exif-data.c
23 #include <libexif/exif-mnote-data.h>
24 #include <libexif/exif-data.h>
26 #include <libexif/exif-mnote-data-priv.h>
33 #include <libexif/canon/exif-mnote-data-canon.h>
34 #include <libexif/fuji/exif-mnote-data-fuji.h>
35 #include <libexif/olympus/exif-mnote-data-olympus.h>
36 #include <libexif/pentax/exif-mnote-data-pentax.h>
62 /* Temporarily used while loading data */
70 exif_data_alloc (ExifData *data, unsigned int i)
74 if (!data || !i)
77 d = exif_mem_alloc (data->priv->mem, i);
81 EXIF_LOG_NO_MEMORY (data->priv->log, "ExifData", i);
105 ExifData *data;
111 data = exif_mem_alloc (mem, sizeof (ExifData));
112 if (!data)
114 data->priv = exif_mem_alloc (mem, sizeof (ExifDataPrivate));
115 if (!data->priv) {
116 exif_mem_free (mem, data);
119 data->priv->ref_count = 1;
121 data->priv->mem = mem;
125 data->ifd[i] = exif_content_new_mem (data->priv->mem);
126 if (!data->ifd[i]) {
127 exif_data_free (data);
130 data->ifd[i]->parent = data;
139 exif_data_set_option (data, EXIF_DATA_OPTION_IGNORE_UNKNOWN_TAGS);
141 exif_data_set_option (data, EXIF_DATA_OPTION_FOLLOW_SPECIFICATION);
143 /* Default data type: none */
144 exif_data_set_data_type (data, EXIF_DATA_TYPE_COUNT);
146 return (data);
150 exif_data_new_from_data (const unsigned char *data, unsigned int size)
155 exif_data_load_data (edata, data, size);
160 exif_data_load_data_entry (ExifData *data, ExifEntry *entry,
166 entry->tag = exif_get_short (d + offset + 0, data->priv->order);
167 entry->format = exif_get_short (d + offset + 2, data->priv->order);
168 entry->components = exif_get_long (d + offset + 4, data->priv->order);
173 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
185 * Size? If bigger than 4 bytes, the actual data is not
189 doff = exif_get_long (d + offset + 8, data->priv->order);
195 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
196 "Tag data past end of buffer (%u > %u)", doff+s, size);
200 entry->data = exif_data_alloc (data, s);
201 if (entry->data) {
203 memcpy (entry->data, d + doff, s);
205 /* FIXME: What do our callers do if (entry->data == NULL)? */
206 EXIF_LOG_NO_MEMORY(data->priv->log, "ExifData", s);
211 if (!entry->data) {
212 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
213 "MakerNote found with empty data");
215 exif_log (data->priv->log,
219 entry->data[0], entry->data[1], entry->data[2],
220 entry->data[3], entry->data[4], entry->data[5],
221 entry->data[6]);
223 data->priv->offset_mnote = doff;
229 exif_data_save_data_entry (ExifData *data, ExifEntry *e,
236 if (!data || !data->priv)
244 data->priv->order, (ExifShort) e->tag);
246 data->priv->order, (ExifShort) e->format);
248 if (!(data->priv->options & EXIF_DATA_OPTION_DONT_CHANGE_MAKER_NOTE)) {
250 if ((e->tag == EXIF_TAG_MAKER_NOTE) && data->priv->md) {
251 /* TODO: this is using the wrong ExifMem to free e->data */
252 exif_mem_free (data->priv->mem, e->data);
253 e->data = NULL;
255 exif_mnote_data_set_offset (data->priv->md, *ds - 6);
256 exif_mnote_data_save (data->priv->md, &e->data, &e->size);
262 data->priv->order, e->components);
265 * Size? If bigger than 4 bytes, the actual data is not in
281 t = exif_mem_realloc (data->priv->mem, *d, ts);
283 EXIF_LOG_NO_MEMORY (data->priv->log, "ExifData", ts);
288 exif_set_long (*d + 6 + offset + 8, data->priv->order, doff);
295 /* Write the data. Fill unneeded bytes with 0. Do not crash with
296 * e->data is NULL */
297 if (e->data) {
298 memcpy (*d + 6 + doff, e->data, s);
307 exif_data_load_data_thumbnail (ExifData *data, const unsigned char *d,
312 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
318 if (data->data)
319 exif_mem_free (data->priv->mem, data->data);
320 if (!(data->data = exif_data_alloc (data, s))) {
321 EXIF_LOG_NO_MEMORY (data->priv->log, "ExifData", s);
322 data->size = 0;
325 data->size = s;
326 memcpy (data->data, d + o, s);
332 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, \
338 if (data->ifd[(i)]->count) { \
339 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, \
347 /*! Load data for an IFD.
349 * \param[in,out] data #ExifData
351 * \param[in] d pointer to buffer containing raw IFD data
352 * \param[in] ds size of raw data in buffer at \c d
358 exif_data_load_data_content (ExifData *data, ExifIfd ifd,
368 if (!data || !data->priv)
376 exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA, "ExifData",
383 exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA, "ExifData",
384 "Tag data past end of buffer (%u > %u)", offset+2, ds);
387 n = exif_get_short (d + offset, data->priv->order);
388 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
392 /* Check if we have enough data. */
395 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
396 "Short data; only loading %hu entries...", n);
401 tag = exif_get_short (d + offset + 12 * i, data->priv->order);
409 data->priv->order);
413 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
419 exif_data_load_data_content (data, EXIF_IFD_EXIF, d, ds, o, recursion_depth + 1);
423 exif_data_load_data_content (data, EXIF_IFD_GPS, d, ds, o, recursion_depth + 1);
427 exif_data_load_data_content (data, EXIF_IFD_INTEROPERABILITY, d, ds, o, recursion_depth + 1);
432 exif_data_load_data_thumbnail (data, d,
439 exif_data_load_data_thumbnail (data, d,
461 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
466 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
470 if (data->priv->options & EXIF_DATA_OPTION_IGNORE_UNKNOWN_TAGS)
473 entry = exif_entry_new_mem (data->priv->mem);
474 if (exif_data_load_data_entry (data, entry, d, ds,
476 exif_content_add_entry (data->ifd[ifd], entry);
507 exif_data_save_data_content (ExifData *data, ExifContent *ifd,
516 if (!data || !data->priv || !ifd || !d || !ds)
520 if (ifd == data->ifd[i])
535 if (data->ifd[EXIF_IFD_EXIF]->count ||
536 data->ifd[EXIF_IFD_INTEROPERABILITY]->count)
540 if (data->ifd[EXIF_IFD_GPS]->count)
545 if (data->size)
549 if (data->ifd[EXIF_IFD_INTEROPERABILITY]->count)
560 t = exif_mem_realloc (data->priv->mem, *d, ts);
562 EXIF_LOG_NO_MEMORY (data->priv->log, "ExifData", ts);
569 exif_set_short (*d + 6 + offset, data->priv->order,
577 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
582 exif_data_save_data_entry (data, ifd->entries[j], d, ds,
599 if (data->ifd[EXIF_IFD_EXIF]->count ||
600 data->ifd[EXIF_IFD_INTEROPERABILITY]->count) {
601 exif_set_short (*d + 6 + offset + 0, data->priv->order,
603 exif_set_short (*d + 6 + offset + 2, data->priv->order,
605 exif_set_long (*d + 6 + offset + 4, data->priv->order,
607 exif_set_long (*d + 6 + offset + 8, data->priv->order,
609 exif_data_save_data_content (data,
610 data->ifd[EXIF_IFD_EXIF], d, ds, *ds - 6);
615 if (data->ifd[EXIF_IFD_GPS]->count) {
616 exif_set_short (*d + 6 + offset + 0, data->priv->order,
618 exif_set_short (*d + 6 + offset + 2, data->priv->order,
620 exif_set_long (*d + 6 + offset + 4, data->priv->order,
622 exif_set_long (*d + 6 + offset + 8, data->priv->order,
624 exif_data_save_data_content (data,
625 data->ifd[EXIF_IFD_GPS], d, ds, *ds - 6);
636 if (data->ifd[EXIF_IFD_INTEROPERABILITY]->count) {
637 exif_set_short (*d + 6 + offset + 0, data->priv->order,
639 exif_set_short (*d + 6 + offset + 2, data->priv->order,
641 exif_set_long (*d + 6 + offset + 4, data->priv->order,
643 exif_set_long (*d + 6 + offset + 8, data->priv->order,
645 exif_data_save_data_content (data,
646 data->ifd[EXIF_IFD_INTEROPERABILITY], d, ds,
658 if (data->size) {
661 exif_set_short (*d + 6 + offset + 0, data->priv->order,
663 exif_set_short (*d + 6 + offset + 2, data->priv->order,
665 exif_set_long (*d + 6 + offset + 4, data->priv->order,
667 exif_set_long (*d + 6 + offset + 8, data->priv->order,
669 ts = *ds + data->size;
670 t = exif_mem_realloc (data->priv->mem, *d, ts);
672 EXIF_LOG_NO_MEMORY (data->priv->log, "ExifData",
678 memcpy (*d + *ds - data->size, data->data, data->size);
682 exif_set_short (*d + 6 + offset + 0, data->priv->order,
684 exif_set_short (*d + 6 + offset + 2, data->priv->order,
686 exif_set_long (*d + 6 + offset + 4, data->priv->order,
688 exif_set_long (*d + 6 + offset + 8, data->priv->order,
689 data->size);
701 (data->priv->order == EXIF_BYTE_ORDER_INTEL) ? cmp_func_intel : cmp_func_motorola);
704 if (i == EXIF_IFD_0 && (data->ifd[EXIF_IFD_1]->count ||
705 data->size)) {
711 exif_set_long (*d + 6 + offset, data->priv->order, *ds - 6);
712 exif_data_save_data_content (data, data->ifd[EXIF_IFD_1], d, ds,
715 exif_set_long (*d + 6 + offset, data->priv->order, 0);
730 * \param[in,out] data #ExifData
731 * \param[in] d pointer to raw EXIF data
732 * \param[in] ds length of data at d
735 interpret_maker_note(ExifData *data, const unsigned char *d, unsigned int ds)
738 ExifEntry* e = exif_data_get_entry (data, EXIF_TAG_MAKER_NOTE);
742 if ((mnoteid = exif_mnote_data_olympus_identify (data, e)) != 0) {
743 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG,
745 data->priv->md = exif_mnote_data_olympus_new (data->priv->mem);
747 } else if ((mnoteid = exif_mnote_data_canon_identify (data, e)) != 0) {
748 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG,
750 data->priv->md = exif_mnote_data_canon_new (data->priv->mem, data->priv->options);
752 } else if ((mnoteid = exif_mnote_data_fuji_identify (data, e)) != 0) {
753 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG,
755 data->priv->md = exif_mnote_data_fuji_new (data->priv->mem);
759 } else if ((mnoteid = exif_mnote_data_pentax_identify (data, e)) != 0) {
760 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG,
762 data->priv->md = exif_mnote_data_pentax_new (data->priv->mem);
768 if (data->priv->md) {
769 exif_mnote_data_log (data->priv->md, data->priv->log);
770 exif_mnote_data_set_byte_order (data->priv->md,
771 data->priv->order);
772 exif_mnote_data_set_offset (data->priv->md,
773 data->priv->offset_mnote);
774 exif_mnote_data_load (data->priv->md, d, ds);
779 exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA, "ExifData", \
780 _("Size of data too small to allow for EXIF data."));
783 exif_data_load_data (ExifData *data, const unsigned char *d_orig,
792 if (!data || !data->priv || !d || !ds)
795 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
796 "Parsing %i byte(s) EXIF data...\n", ds);
799 * It can be that the data starts with the EXIF header. If it does
807 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
839 /* Unknown marker or data. Give up. */
840 exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA,
851 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
852 "We have to deal with %i byte(s) of EXIF data.",
867 exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA,
872 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
875 /* Sanity check the data length */
880 16-bit length), so cap the data length to protect against overflow
888 data->priv->order = EXIF_BYTE_ORDER_INTEL;
890 data->priv->order = EXIF_BYTE_ORDER_MOTOROLA;
892 exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA,
898 if (exif_get_short (d + 8, data->priv->order) != 0x002a)
902 offset = exif_get_long (d + 10, data->priv->order);
903 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
910 /* Parse the actual exif data (usually offset 14 from start) */
911 exif_data_load_data_content (data, EXIF_IFD_0, d + 6, ds - 6, offset, 0);
914 n = exif_get_short (d + 6 + offset, data->priv->order);
918 offset = exif_get_long (d + 6 + offset + 2 + 12 * n, data->priv->order);
920 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
925 exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA,
928 exif_data_load_data_content (data, EXIF_IFD_1, d + 6, ds - 6, offset, 0);
936 * to that data.
938 interpret_maker_note(data, d, fullds);
941 if (data->priv->options & EXIF_DATA_OPTION_FOLLOW_SPECIFICATION)
942 exif_data_fix (data);
946 exif_data_save_data (ExifData *data, unsigned char **d, unsigned int *ds)
951 if (!data || !d || !ds)
956 *d = exif_data_alloc (data, *ds);
964 if (data->priv->order == EXIF_BYTE_ORDER_INTEL) {
971 exif_set_short (*d + 8, data->priv->order, 0x002a);
979 exif_set_long (*d + 10, data->priv->order, 8);
982 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
984 exif_data_save_data_content (data, data->ifd[EXIF_IFD_0], d, ds,
986 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
987 "Saved %i byte(s) EXIF data.", *ds);
1005 exif_data_ref (ExifData *data)
1007 if (!data)
1010 data->priv->ref_count++;
1014 exif_data_unref (ExifData *data)
1016 if (!data)
1019 data->priv->ref_count--;
1020 if (!data->priv->ref_count)
1021 exif_data_free (data);
1025 exif_data_free (ExifData *data)
1028 ExifMem *mem = (data && data->priv) ? data->priv->mem : NULL;
1030 if (!data)
1034 if (data->ifd[i]) {
1035 exif_content_unref (data->ifd[i]);
1036 data->ifd[i] = NULL;
1040 if (data->data) {
1041 exif_mem_free (mem, data->data);
1042 data->data = NULL;
1045 if (data->priv) {
1046 if (data->priv->log) {
1047 exif_log_unref (data->priv->log);
1048 data->priv->log = NULL;
1050 if (data->priv->md) {
1051 exif_mnote_data_unref (data->priv->md);
1052 data->priv->md = NULL;
1054 exif_mem_free (mem, data->priv);
1055 exif_mem_free (mem, data);
1062 exif_data_dump (ExifData *data)
1066 if (!data)
1070 if (data->ifd[i] && data->ifd[i]->count) {
1073 exif_content_dump (data->ifd[i], 0);
1077 if (data->data) {
1078 printf ("%i byte(s) thumbnail data available.", data->size);
1079 if (data->size >= 4) {
1081 data->data[0], data->data[1],
1082 data->data[data->size - 2],
1083 data->data[data->size - 1]);
1089 exif_data_get_byte_order (ExifData *data)
1091 if (!data)
1094 return (data->priv->order);
1098 exif_data_foreach_content (ExifData *data, ExifDataForeachContentFunc func,
1103 if (!data || !func)
1107 func (data->ifd[i], user_data);
1116 entry_set_byte_order (ExifEntry *e, void *data)
1118 ByteOrderChangeData *d = data;
1123 exif_array_set_byte_order (e->format, e->data, e->components, d->old, d->new);
1127 content_set_byte_order (ExifContent *content, void *data)
1129 exif_content_foreach_entry (content, entry_set_byte_order, data);
1133 exif_data_set_byte_order (ExifData *data, ExifByteOrder order)
1137 if (!data || (order == data->priv->order))
1140 d.old = data->priv->order;
1142 exif_data_foreach_content (data, content_set_byte_order, &d);
1143 data->priv->order = order;
1144 if (data->priv->md)
1145 exif_mnote_data_set_byte_order (data->priv->md, order);
1149 exif_data_log (ExifData *data, ExifLog *log)
1153 if (!data || !data->priv)
1155 exif_log_unref (data->priv->log);
1156 data->priv->log = log;
1160 exif_content_log (data->ifd[i], log);
1166 exif_data_get_log (ExifData *data)
1168 if (!data || !data->priv)
1170 return data->priv->log;
1179 N_("Ignore unknown tags when loading EXIF data.")},
1181 N_("Add, correct and remove entries to get EXIF data that follows "
1184 N_("When loading and resaving Exif data, save the maker note unmodified."
1230 fix_func (ExifContent *c, void *UNUSED(data))
1234 if (c->parent->data)
1237 exif_log (c->parent->priv->log, EXIF_LOG_CODE_DEBUG, "exif-data",
1245 exif_log (c->parent->priv->log, EXIF_LOG_CODE_DEBUG, "exif-data",