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>
66 /* Temporarily used while loading data */
74 exif_data_alloc (ExifData *data, unsigned int i)
78 if (!data || !i)
81 d = exif_mem_alloc (data->priv->mem, i);
85 EXIF_LOG_NO_MEMORY (data->priv->log, "ExifData", i);
109 ExifData *data;
115 data = exif_mem_alloc (mem, sizeof (ExifData));
116 if (!data)
118 data->priv = exif_mem_alloc (mem, sizeof (ExifDataPrivate));
119 if (!data->priv) {
120 exif_mem_free (mem, data);
123 data->priv->ref_count = 1;
125 data->priv->mem = mem;
129 data->ifd[i] = exif_content_new_mem (data->priv->mem);
130 if (!data->ifd[i]) {
131 exif_data_free (data);
134 data->ifd[i]->parent = data;
143 exif_data_set_option (data, EXIF_DATA_OPTION_IGNORE_UNKNOWN_TAGS);
145 exif_data_set_option (data, EXIF_DATA_OPTION_FOLLOW_SPECIFICATION);
147 /* Default data type: none */
148 exif_data_set_data_type (data, EXIF_DATA_TYPE_COUNT);
150 return (data);
154 exif_data_new_from_data (const unsigned char *data, unsigned int size)
159 exif_data_load_data (edata, data, size);
164 exif_data_load_data_entry (ExifData *data, ExifEntry *entry,
170 entry->tag = exif_get_short (d + offset + 0, data->priv->order);
171 entry->format = exif_get_short (d + offset + 2, data->priv->order);
172 entry->components = exif_get_long (d + offset + 4, data->priv->order);
177 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
189 * Size? If bigger than 4 bytes, the actual data is not
193 doff = exif_get_long (d + offset + 8, data->priv->order);
199 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
200 "Tag data past end of buffer (%u > %u)", doff+s, size);
204 entry->data = exif_data_alloc (data, s);
205 if (entry->data) {
207 memcpy (entry->data, d + doff, s);
209 /* FIXME: What do our callers do if (entry->data == NULL)? */
210 EXIF_LOG_NO_MEMORY(data->priv->log, "ExifData", s);
215 if (!entry->data) {
216 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
217 "MakerNote found with empty data");
219 exif_log (data->priv->log,
223 entry->data[0], entry->data[1], entry->data[2],
224 entry->data[3], entry->data[4], entry->data[5],
225 entry->data[6]);
227 data->priv->offset_mnote = doff;
233 exif_data_save_data_entry (ExifData *data, ExifEntry *e,
241 if (!data || !data->priv)
249 data->priv->order, (ExifShort) e->tag);
251 data->priv->order, (ExifShort) e->format);
253 if (!(data->priv->options & EXIF_DATA_OPTION_DONT_CHANGE_MAKER_NOTE)) {
255 if ((e->tag == EXIF_TAG_MAKER_NOTE) && data->priv->md) {
256 exif_mem_free (data->priv->mem, e->data);
257 e->data = NULL;
259 exif_mnote_data_set_offset (data->priv->md, *ds - 6);
260 exif_mnote_data_save (data->priv->md, &e->data, &e->size);
266 data->priv->order, e->components);
269 * Size? If bigger than 4 bytes, the actual data is not in
284 t = exif_mem_realloc (data->priv->mem, *d, ts);
286 EXIF_LOG_NO_MEMORY (data->priv->log, "ExifData", ts);
291 exif_set_long (*d + 6 + offset + 8, data->priv->order, doff);
298 /* Write the data. Fill unneeded bytes with 0. Do not crash with
299 * e->data is NULL */
300 if (e->data) {
301 memcpy (*d + 6 + doff, e->data, s);
310 exif_data_load_data_thumbnail (ExifData *data, const unsigned char *d,
315 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
321 if (data->data)
322 exif_mem_free (data->priv->mem, data->data);
323 if (!(data->data = exif_data_alloc (data, s))) {
324 EXIF_LOG_NO_MEMORY (data->priv->log, "ExifData", s);
325 data->size = 0;
328 data->size = s;
329 memcpy (data->data, d + o, s);
335 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, \
341 if (data->ifd[(i)]->count) { \
342 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, \
350 /*! Load data for an IFD.
352 * \param[in,out] data #ExifData
354 * \param[in] d pointer to buffer containing raw IFD data
355 * \param[in] ds size of raw data in buffer at \c d
361 exif_data_load_data_content (ExifData *data, ExifIfd ifd,
371 if (!data || !data->priv)
379 exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA, "ExifData",
386 exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA, "ExifData",
387 "Tag data past end of buffer (%u > %u)", offset+2, ds);
390 n = exif_get_short (d + offset, data->priv->order);
391 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
395 /* Check if we have enough data. */
398 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
399 "Short data; only loading %hu entries...", n);
404 tag = exif_get_short (d + offset + 12 * i, data->priv->order);
412 data->priv->order);
416 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
422 exif_data_load_data_content (data, EXIF_IFD_EXIF, d, ds, o, recursion_depth + 1);
426 exif_data_load_data_content (data, EXIF_IFD_GPS, d, ds, o, recursion_depth + 1);
430 exif_data_load_data_content (data, EXIF_IFD_INTEROPERABILITY, d, ds, o, recursion_depth + 1);
435 exif_data_load_data_thumbnail (data, d,
442 exif_data_load_data_thumbnail (data, d,
464 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
469 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
473 if (data->priv->options & EXIF_DATA_OPTION_IGNORE_UNKNOWN_TAGS)
476 entry = exif_entry_new_mem (data->priv->mem);
477 if (exif_data_load_data_entry (data, entry, d, ds,
479 exif_content_add_entry (data->ifd[ifd], entry);
510 exif_data_save_data_content (ExifData *data, ExifContent *ifd,
519 if (!data || !data->priv || !ifd || !d || !ds)
523 if (ifd == data->ifd[i])
538 if (data->ifd[EXIF_IFD_EXIF]->count ||
539 data->ifd[EXIF_IFD_INTEROPERABILITY]->count)
543 if (data->ifd[EXIF_IFD_GPS]->count)
548 if (data->size)
552 if (data->ifd[EXIF_IFD_INTEROPERABILITY]->count)
563 t = exif_mem_realloc (data->priv->mem, *d, ts);
565 EXIF_LOG_NO_MEMORY (data->priv->log, "ExifData", ts);
572 exif_set_short (*d + 6 + offset, data->priv->order,
580 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
585 exif_data_save_data_entry (data, ifd->entries[j], d, ds,
602 if (data->ifd[EXIF_IFD_EXIF]->count ||
603 data->ifd[EXIF_IFD_INTEROPERABILITY]->count) {
604 exif_set_short (*d + 6 + offset + 0, data->priv->order,
606 exif_set_short (*d + 6 + offset + 2, data->priv->order,
608 exif_set_long (*d + 6 + offset + 4, data->priv->order,
610 exif_set_long (*d + 6 + offset + 8, data->priv->order,
612 exif_data_save_data_content (data,
613 data->ifd[EXIF_IFD_EXIF], d, ds, *ds - 6);
618 if (data->ifd[EXIF_IFD_GPS]->count) {
619 exif_set_short (*d + 6 + offset + 0, data->priv->order,
621 exif_set_short (*d + 6 + offset + 2, data->priv->order,
623 exif_set_long (*d + 6 + offset + 4, data->priv->order,
625 exif_set_long (*d + 6 + offset + 8, data->priv->order,
627 exif_data_save_data_content (data,
628 data->ifd[EXIF_IFD_GPS], d, ds, *ds - 6);
639 if (data->ifd[EXIF_IFD_INTEROPERABILITY]->count) {
640 exif_set_short (*d + 6 + offset + 0, data->priv->order,
642 exif_set_short (*d + 6 + offset + 2, data->priv->order,
644 exif_set_long (*d + 6 + offset + 4, data->priv->order,
646 exif_set_long (*d + 6 + offset + 8, data->priv->order,
648 exif_data_save_data_content (data,
649 data->ifd[EXIF_IFD_INTEROPERABILITY], d, ds,
661 if (data->size) {
664 exif_set_short (*d + 6 + offset + 0, data->priv->order,
666 exif_set_short (*d + 6 + offset + 2, data->priv->order,
668 exif_set_long (*d + 6 + offset + 4, data->priv->order,
670 exif_set_long (*d + 6 + offset + 8, data->priv->order,
672 ts = *ds + data->size;
673 t = exif_mem_realloc (data->priv->mem, *d, ts);
675 EXIF_LOG_NO_MEMORY (data->priv->log, "ExifData",
681 memcpy (*d + *ds - data->size, data->data, data->size);
685 exif_set_short (*d + 6 + offset + 0, data->priv->order,
687 exif_set_short (*d + 6 + offset + 2, data->priv->order,
689 exif_set_long (*d + 6 + offset + 4, data->priv->order,
691 exif_set_long (*d + 6 + offset + 8, data->priv->order,
692 data->size);
704 (data->priv->order == EXIF_BYTE_ORDER_INTEL) ? cmp_func_intel : cmp_func_motorola);
707 if (i == EXIF_IFD_0 && (data->ifd[EXIF_IFD_1]->count ||
708 data->size)) {
714 exif_set_long (*d + 6 + offset, data->priv->order, *ds - 6);
715 exif_data_save_data_content (data, data->ifd[EXIF_IFD_1], d, ds,
718 exif_set_long (*d + 6 + offset, data->priv->order, 0);
745 if ((e->size >= 8) && ( !memcmp (e->data, "OLYMP", 6) ||
746 !memcmp (e->data, "OLYMPUS", 8) ||
747 !memcmp (e->data, "SANYO", 6) ||
748 !memcmp (e->data, "EPSON", 6) ||
749 !memcmp (e->data, "Nikon", 6)))
761 if ((e->size >= 2) && (e->data[0] == 0x00) && (e->data[1] == 0x1b)) {
769 if ((e->size >= 8) && !memcmp (e->data, "AOC", 4)) {
772 if ((e->size >= 8) && !memcmp (e->data, "QVC", 4)) {
775 if ((e->size >= 12) && !memcmp (e->data, "FUJIFILM", 8)) {
783 exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA, "ExifData", \
784 _("Size of data too small to allow for EXIF data."));
787 exif_data_load_data (ExifData *data, const unsigned char *d_orig,
796 if (!data || !data->priv || !d || !ds)
799 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
800 "Parsing %i byte(s) EXIF data...\n", ds);
803 * It can be that the data starts with the EXIF header. If it does
811 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
843 /* Unknown marker or data. Give up. */
844 exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA,
855 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
856 "We have to deal with %i byte(s) of EXIF data.",
871 exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA,
876 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
883 data->priv->order = EXIF_BYTE_ORDER_INTEL;
885 data->priv->order = EXIF_BYTE_ORDER_MOTOROLA;
887 exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA,
893 if (exif_get_short (d + 8, data->priv->order) != 0x002a)
897 offset = exif_get_long (d + 10, data->priv->order);
898 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
901 /* Parse the actual exif data (usually offset 14 from start) */
902 exif_data_load_data_content (data, EXIF_IFD_0, d + 6, ds - 6, offset, 0);
908 n = exif_get_short (d + 6 + offset, data->priv->order);
912 offset = exif_get_long (d + 6 + offset + 2 + 12 * n, data->priv->order);
914 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
919 exif_log (data->priv->log, EXIF_LOG_CODE_CORRUPT_DATA,
922 exif_data_load_data_content (data, EXIF_IFD_1, d + 6, ds - 6, offset, 0);
930 * to that data.
932 switch (exif_data_get_type_maker_note (data)) {
935 data->priv->md = exif_mnote_data_olympus_new (data->priv->mem);
939 data->priv->md = exif_mnote_data_pentax_new (data->priv->mem);
942 data->priv->md = exif_mnote_data_canon_new (data->priv->mem, data->priv->options);
945 data->priv->md = exif_mnote_data_fuji_new (data->priv->mem);
954 if (data->priv->md) {
955 exif_mnote_data_log (data->priv->md, data->priv->log);
956 exif_mnote_data_set_byte_order (data->priv->md,
957 data->priv->order);
958 exif_mnote_data_set_offset (data->priv->md,
959 data->priv->offset_mnote);
960 exif_mnote_data_load (data->priv->md, d, ds);
963 if (data->priv->options & EXIF_DATA_OPTION_FOLLOW_SPECIFICATION)
964 exif_data_fix (data);
968 exif_data_save_data (ExifData *data, unsigned char **d, unsigned int *ds)
973 if (!data || !d || !ds)
978 *d = exif_data_alloc (data, *ds);
986 if (data->priv->order == EXIF_BYTE_ORDER_INTEL) {
993 exif_set_short (*d + 8, data->priv->order, 0x002a);
1001 exif_set_long (*d + 10, data->priv->order, 8);
1004 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
1006 exif_data_save_data_content (data, data->ifd[EXIF_IFD_0], d, ds,
1008 exif_log (data->priv->log, EXIF_LOG_CODE_DEBUG, "ExifData",
1009 "Saved %i byte(s) EXIF data.", *ds);
1027 exif_data_ref (ExifData *data)
1029 if (!data)
1032 data->priv->ref_count++;
1036 exif_data_unref (ExifData *data)
1038 if (!data)
1041 data->priv->ref_count--;
1042 if (!data->priv->ref_count)
1043 exif_data_free (data);
1047 exif_data_free (ExifData *data)
1050 ExifMem *mem = (data && data->priv) ? data->priv->mem : NULL;
1052 if (!data)
1056 if (data->ifd[i]) {
1057 exif_content_unref (data->ifd[i]);
1058 data->ifd[i] = NULL;
1062 if (data->data) {
1063 exif_mem_free (mem, data->data);
1064 data->data = NULL;
1067 if (data->priv) {
1068 if (data->priv->log) {
1069 exif_log_unref (data->priv->log);
1070 data->priv->log = NULL;
1072 if (data->priv->md) {
1073 exif_mnote_data_unref (data->priv->md);
1074 data->priv->md = NULL;
1076 exif_mem_free (mem, data->priv);
1077 exif_mem_free (mem, data);
1084 exif_data_dump (ExifData *data)
1088 if (!data)
1092 if (data->ifd[i] && data->ifd[i]->count) {
1095 exif_content_dump (data->ifd[i], 0);
1099 if (data->data) {
1100 printf ("%i byte(s) thumbnail data available.", data->size);
1101 if (data->size >= 4) {
1103 data->data[0], data->data[1],
1104 data->data[data->size - 2],
1105 data->data[data->size - 1]);
1111 exif_data_get_byte_order (ExifData *data)
1113 if (!data)
1116 return (data->priv->order);
1120 exif_data_foreach_content (ExifData *data, ExifDataForeachContentFunc func,
1125 if (!data || !func)
1129 func (data->ifd[i], user_data);
1138 entry_set_byte_order (ExifEntry *e, void *data)
1140 ByteOrderChangeData *d = data;
1145 exif_array_set_byte_order (e->format, e->data, e->components, d->old, d->new);
1149 content_set_byte_order (ExifContent *content, void *data)
1151 exif_content_foreach_entry (content, entry_set_byte_order, data);
1155 exif_data_set_byte_order (ExifData *data, ExifByteOrder order)
1159 if (!data || (order == data->priv->order))
1162 d.old = data->priv->order;
1164 exif_data_foreach_content (data, content_set_byte_order, &d);
1165 data->priv->order = order;
1166 if (data->priv->md)
1167 exif_mnote_data_set_byte_order (data->priv->md, order);
1171 exif_data_log (ExifData *data, ExifLog *log)
1175 if (!data || !data->priv)
1177 exif_log_unref (data->priv->log);
1178 data->priv->log = log;
1182 exif_content_log (data->ifd[i], log);
1188 exif_data_get_log (ExifData *data)
1190 if (!data || !data->priv)
1192 return data->priv->log;
1201 N_("Ignore unknown tags when loading EXIF data.")},
1203 N_("Add, correct and remove entries to get EXIF data that follows "
1206 N_("When loading and resaving Exif data, save the maker note unmodified."
1252 fix_func (ExifContent *c, void *UNUSED(data))
1256 if (c->parent->data)
1259 exif_log (c->parent->priv->log, EXIF_LOG_CODE_DEBUG, "exif-data",
1267 exif_log (c->parent->priv->log, EXIF_LOG_CODE_DEBUG, "exif-data",