8 #include <exiv2/image.hpp>
9 #include <exiv2/exif.hpp>
12 // EXIV2_TEST_VERSION is defined in Exiv2 0.15 and newer.
13 #ifndef EXIV2_TEST_VERSION
14 # define EXIV2_TEST_VERSION(major,minor,patch) \
15 ( EXIV2_VERSION >= EXIV2_MAKE_VERSION(major,minor,patch) )
19 #include <sys/types.h>
25 #include <exiv2/tiffparser.hpp>
26 #include <exiv2/tiffcomposite.hpp>
27 #include <exiv2/tiffvisitor.hpp>
28 #include <exiv2/tiffimage.hpp>
29 #include <exiv2/cr2image.hpp>
30 #include <exiv2/crwimage.hpp>
31 #if EXIV2_TEST_VERSION(0,16,0)
32 #include <exiv2/orfimage.hpp>
34 #if EXIV2_TEST_VERSION(0,13,0)
35 #include <exiv2/rafimage.hpp>
37 #include <exiv2/futils.hpp>
51 Exiv2::Image::AutoPtr image;
52 Exiv2::Image::AutoPtr sidecar;
53 Exiv2::ExifData::const_iterator exifIter; /* for exif_get_next_item */
54 Exiv2::IptcData::const_iterator iptcIter; /* for exif_get_next_item */
55 #if EXIV2_TEST_VERSION(0,16,0)
56 Exiv2::XmpData::const_iterator xmpIter; /* for exif_get_next_item */
60 /* the icc profile in jpeg is not technically exif - store it here */
61 unsigned char *cp_data;
64 _ExifData(gchar *path, gchar *sidecar_path)
69 image = Exiv2::ImageFactory::open(path);
70 // g_assert (image.get() != 0);
71 image->readMetadata();
73 #if EXIV2_TEST_VERSION(0,16,0)
74 if (debug >= 2) printf("xmp count %li\n", image->xmpData().count());
75 if (sidecar_path && image->xmpData().empty())
77 sidecar = Exiv2::ImageFactory::open(sidecar_path);
78 sidecar->readMetadata();
79 have_sidecar = sidecar->good();
80 if (debug >= 2) printf("sidecar xmp count %li\n", sidecar->xmpData().count());
84 #if EXIV2_TEST_VERSION(0,14,0)
85 if (image->mimeType() == std::string("image/jpeg"))
87 /* try to get jpeg color profile */
88 Exiv2::BasicIo &io = image->io();
89 gint open = io.isopen();
91 unsigned char *mapped = (unsigned char*)io.mmap();
92 if (mapped) exif_jpeg_parse_color(this, mapped, io.size());
94 if (!open) io.close();
101 if (cp_data) g_free(cp_data);
106 if (have_sidecar) sidecar->writeMetadata();
107 image->writeMetadata();
110 Exiv2::ExifData &exifData ()
112 return image->exifData();
115 Exiv2::IptcData &iptcData ()
117 return image->iptcData();
120 #if EXIV2_TEST_VERSION(0,16,0)
121 Exiv2::XmpData &xmpData ()
123 return have_sidecar ? sidecar->xmpData() : image->xmpData();
131 ExifData *exif_read(gchar *path, gchar *sidecar_path)
133 if (debug) printf("exif read %s, sidecar: %s\n", path, sidecar_path ? sidecar_path : "-");
135 return new ExifData(path, sidecar_path);
137 catch (Exiv2::AnyError& e) {
138 std::cout << "Caught Exiv2 exception '" << e << "'\n";
144 int exif_write(ExifData *exif)
147 exif->writeMetadata();
150 catch (Exiv2::AnyError& e) {
151 std::cout << "Caught Exiv2 exception '" << e << "'\n";
158 void exif_free(ExifData *exif)
164 ExifItem *exif_get_item(ExifData *exif, const gchar *key)
167 Exiv2::Metadatum *item = NULL;
169 Exiv2::ExifKey ekey(key);
170 Exiv2::ExifData::iterator pos = exif->exifData().findKey(ekey);
171 if (pos == exif->exifData().end()) return NULL;
174 catch (Exiv2::AnyError& e) {
176 Exiv2::IptcKey ekey(key);
177 Exiv2::IptcData::iterator pos = exif->iptcData().findKey(ekey);
178 if (pos == exif->iptcData().end()) return NULL;
181 catch (Exiv2::AnyError& e) {
182 #if EXIV2_TEST_VERSION(0,16,0)
183 Exiv2::XmpKey ekey(key);
184 Exiv2::XmpData::iterator pos = exif->xmpData().findKey(ekey);
185 if (pos == exif->xmpData().end()) return NULL;
190 return (ExifItem *)item;
192 catch (Exiv2::AnyError& e) {
193 std::cout << "Caught Exiv2 exception '" << e << "'\n";
198 ExifItem *exif_add_item(ExifData *exif, const gchar *key)
201 Exiv2::Metadatum *item = NULL;
203 Exiv2::ExifKey ekey(key);
204 exif->exifData().add(ekey, NULL);
205 Exiv2::ExifData::iterator pos = exif->exifData().end(); // a hack, there should be a better way to get the currently added item
209 catch (Exiv2::AnyError& e) {
211 Exiv2::IptcKey ekey(key);
212 exif->iptcData().add(ekey, NULL);
213 Exiv2::IptcData::iterator pos = exif->iptcData().end();
217 catch (Exiv2::AnyError& e) {
218 #if EXIV2_TEST_VERSION(0,16,0)
219 Exiv2::XmpKey ekey(key);
220 exif->xmpData().add(ekey, NULL);
221 Exiv2::XmpData::iterator pos = exif->xmpData().end();
227 return (ExifItem *)item;
229 catch (Exiv2::AnyError& e) {
230 std::cout << "Caught Exiv2 exception '" << e << "'\n";
236 ExifItem *exif_get_first_item(ExifData *exif)
239 exif->exifIter = exif->exifData().begin();
240 exif->iptcIter = exif->iptcData().begin();
241 #if EXIV2_TEST_VERSION(0,16,0)
242 exif->xmpIter = exif->xmpData().begin();
244 if (exif->exifIter != exif->exifData().end())
246 const Exiv2::Metadatum *item = &*exif->exifIter;
248 return (ExifItem *)item;
250 if (exif->iptcIter != exif->iptcData().end())
252 const Exiv2::Metadatum *item = &*exif->iptcIter;
254 return (ExifItem *)item;
256 #if EXIV2_TEST_VERSION(0,16,0)
257 if (exif->xmpIter != exif->xmpData().end())
259 const Exiv2::Metadatum *item = &*exif->xmpIter;
261 return (ExifItem *)item;
267 catch (Exiv2::AnyError& e) {
268 std::cout << "Caught Exiv2 exception '" << e << "'\n";
273 ExifItem *exif_get_next_item(ExifData *exif)
276 if (exif->exifIter != exif->exifData().end())
278 const Exiv2::Metadatum *item = &*exif->exifIter;
280 return (ExifItem *)item;
282 if (exif->iptcIter != exif->iptcData().end())
284 const Exiv2::Metadatum *item = &*exif->iptcIter;
286 return (ExifItem *)item;
288 #if EXIV2_TEST_VERSION(0,16,0)
289 if (exif->xmpIter != exif->xmpData().end())
291 const Exiv2::Metadatum *item = &*exif->xmpIter;
293 return (ExifItem *)item;
298 catch (Exiv2::AnyError& e) {
299 std::cout << "Caught Exiv2 exception '" << e << "'\n";
304 char *exif_item_get_tag_name(ExifItem *item)
307 if (!item) return NULL;
308 return g_strdup(((Exiv2::Metadatum *)item)->key().c_str());
310 catch (Exiv2::AnyError& e) {
311 std::cout << "Caught Exiv2 exception '" << e << "'\n";
316 guint exif_item_get_tag_id(ExifItem *item)
320 return ((Exiv2::Metadatum *)item)->tag();
322 catch (Exiv2::AnyError& e) {
323 std::cout << "Caught Exiv2 exception '" << e << "'\n";
328 guint exif_item_get_elements(ExifItem *item)
332 return ((Exiv2::Metadatum *)item)->count();
334 catch (Exiv2::AnyError& e) {
335 std::cout << "Caught Exiv2 exception '" << e << "'\n";
340 char *exif_item_get_data(ExifItem *item, guint *data_len)
344 Exiv2::Metadatum *md = (Exiv2::Metadatum *)item;
345 if(data_len) *data_len = md->size();
346 char *data = (char *)g_malloc(md->size());
347 long res = md->copy((Exiv2::byte *)data, Exiv2::littleEndian /* should not matter */);
348 g_assert(res == md->size());
351 catch (Exiv2::AnyError& e) {
352 std::cout << "Caught Exiv2 exception '" << e << "'\n";
357 char *exif_item_get_description(ExifItem *item)
360 if (!item) return NULL;
361 return g_strdup(((Exiv2::Metadatum *)item)->tagLabel().c_str());
363 catch (std::exception& e) {
364 // std::cout << "Caught Exiv2 exception '" << e << "'\n";
370 invalidTypeId, unsignedByte, asciiString, unsignedShort,
371 unsignedLong, unsignedRational, signedByte, undefined,
372 signedShort, signedLong, signedRational, string,
373 date, time, comment, directory,
374 xmpText, xmpAlt, xmpBag, xmpSeq,
378 static guint format_id_trans_tbl [] = {
380 EXIF_FORMAT_BYTE_UNSIGNED,
382 EXIF_FORMAT_SHORT_UNSIGNED,
383 EXIF_FORMAT_LONG_UNSIGNED,
384 EXIF_FORMAT_RATIONAL_UNSIGNED,
386 EXIF_FORMAT_UNDEFINED,
389 EXIF_FORMAT_RATIONAL,
393 EXIF_FORMAT_UNDEFINED,
402 guint exif_item_get_format_id(ExifItem *item)
405 if (!item) return EXIF_FORMAT_UNKNOWN;
406 guint id = ((Exiv2::Metadatum *)item)->typeId();
407 if (id >= (sizeof(format_id_trans_tbl) / sizeof(format_id_trans_tbl[0])) ) return EXIF_FORMAT_UNKNOWN;
408 return format_id_trans_tbl[id];
410 catch (Exiv2::AnyError& e) {
411 std::cout << "Caught Exiv2 exception '" << e << "'\n";
412 return EXIF_FORMAT_UNKNOWN;
416 const char *exif_item_get_format_name(ExifItem *item, gint brief)
419 if (!item) return NULL;
420 return ((Exiv2::Metadatum *)item)->typeName();
422 catch (Exiv2::AnyError& e) {
423 std::cout << "Caught Exiv2 exception '" << e << "'\n";
429 gchar *exif_item_get_data_as_text(ExifItem *item)
432 if (!item) return NULL;
433 // std::stringstream str; // does not work with Exiv2::Metadatum because operator<< is not virtual
434 // str << *((Exiv2::Metadatum *)item);
435 // return g_strdup(str.str().c_str());
436 return g_strdup(((Exiv2::Metadatum *)item)->toString().c_str());
438 catch (Exiv2::AnyError& e) {
443 gchar *exif_item_get_string(ExifItem *item, int idx)
446 if (!item) return NULL;
447 Exiv2::Metadatum *em = (Exiv2::Metadatum *)item;
448 #if EXIV2_TEST_VERSION(0,16,0)
449 std::string str = em->toString(idx);
451 std::string str = em->toString(); // FIXME
453 if (idx == 0 && str == "") str = em->toString();
454 if (str.length() > 5 && str.substr(0, 5) == "lang=")
456 std::string::size_type pos = str.find_first_of(' ');
457 if (pos != std::string::npos) str = str.substr(pos+1);
460 return g_strdup(str.c_str());
462 catch (Exiv2::AnyError& e) {
468 gint exif_item_get_integer(ExifItem *item, gint *value)
472 *value = ((Exiv2::Metadatum *)item)->toLong();
475 catch (Exiv2::AnyError& e) {
476 std::cout << "Caught Exiv2 exception '" << e << "'\n";
481 ExifRational *exif_item_get_rational(ExifItem *item, gint *sign)
484 if (!item) return NULL;
485 Exiv2::Rational v = ((Exiv2::Metadatum *)item)->toRational();
486 static ExifRational ret;
491 catch (Exiv2::AnyError& e) {
492 std::cout << "Caught Exiv2 exception '" << e << "'\n";
497 const gchar *exif_get_tag_description_by_key(const gchar *key)
500 Exiv2::ExifKey ekey(key);
501 return Exiv2::ExifTags::tagLabel(ekey.tag(), ekey.ifdId ());
503 catch (Exiv2::AnyError& e) {
504 std::cout << "Caught Exiv2 exception '" << e << "'\n";
509 int exif_item_set_string(ExifItem *item, const char *str)
513 ((Exiv2::Metadatum *)item)->setValue(std::string(str));
516 catch (Exiv2::AnyError& e) {
521 int exif_item_delete(ExifData *exif, ExifItem *item)
525 for (Exiv2::ExifData::iterator i = exif->exifData().begin(); i != exif->exifData().end(); ++i) {
526 if (((Exiv2::Metadatum *)item) == &*i) {
527 i = exif->exifData().erase(i);
531 for (Exiv2::IptcData::iterator i = exif->iptcData().begin(); i != exif->iptcData().end(); ++i) {
532 if (((Exiv2::Metadatum *)item) == &*i) {
533 i = exif->iptcData().erase(i);
537 #if EXIV2_TEST_VERSION(0,16,0)
538 for (Exiv2::XmpData::iterator i = exif->xmpData().begin(); i != exif->xmpData().end(); ++i) {
539 if (((Exiv2::Metadatum *)item) == &*i) {
540 i = exif->xmpData().erase(i);
547 catch (Exiv2::AnyError& e) {
552 void exif_add_jpeg_color_profile(ExifData *exif, unsigned char *cp_data, guint cp_length)
554 if (exif->cp_data) g_free(exif->cp_data);
555 exif->cp_data = cp_data;
556 exif->cp_length =cp_length;
559 unsigned char *exif_get_color_profile(ExifData *exif, guint *data_len)
563 if (data_len) *data_len = exif->cp_length;
564 return (unsigned char *) g_memdup(exif->cp_data, exif->cp_length);
566 ExifItem *prof_item = exif_get_item(exif, "Exif.Image.InterColorProfile");
567 if (prof_item && exif_item_get_format_id(prof_item) == EXIF_FORMAT_UNDEFINED)
568 return (unsigned char *) exif_item_get_data(prof_item, data_len);
576 /* This is a dirty hack to support raw file preview, bassed on
577 tiffparse.cpp from Exiv2 examples */
585 const Exiv2::Value *find(uint16_t tag, uint16_t group);
587 unsigned long preview_offset();
591 Exiv2::TiffComponent::AutoPtr rootDir;
592 Exiv2::byte *map_data;
594 unsigned long offset;
597 using namespace Exiv2;
599 RawFile::RawFile(int fd) : map_data(NULL), map_len(0), offset(0)
602 if (fstat(fd, &st) == -1)
606 map_len = st.st_size;
607 map_data = (Exiv2::byte *) mmap(0, map_len, PROT_READ, MAP_PRIVATE, fd, 0);
608 if (map_data == MAP_FAILED)
612 type = Exiv2::ImageFactory::getType(map_data, map_len);
614 #if EXIV2_TEST_VERSION(0,16,0)
615 TiffHeaderBase *tiffHeader = NULL;
617 TiffHeade2 *tiffHeader = NULL;
619 Cr2Header *cr2Header = NULL;
622 case Exiv2::ImageType::tiff:
623 tiffHeader = new TiffHeade2();
625 case Exiv2::ImageType::cr2:
626 cr2Header = new Cr2Header();
628 #if EXIV2_TEST_VERSION(0,16,0)
629 case Exiv2::ImageType::orf:
630 tiffHeader = new OrfHeader();
633 #if EXIV2_TEST_VERSION(0,13,0)
634 case Exiv2::ImageType::raf:
635 if (map_len < 84 + 4) throw Error(14);
636 offset = getULong(map_data + 84, bigEndian);
639 case Exiv2::ImageType::crw:
641 // Parse the image, starting with a CIFF header component
642 Exiv2::CiffHeader::AutoPtr parseTree(new Exiv2::CiffHeader);
643 parseTree->read(map_data, map_len);
644 CiffComponent *entry = parseTree->findComponent(0x2007, 0);
645 if (entry) offset = entry->pData() - map_data;
650 throw Error(3, "RAW");
653 // process tiff-like formats
655 TiffCompFactoryFct createFct = TiffCreator::create;
657 rootDir = createFct(Tag::root, Group::none);
658 if (0 == rootDir.get()) {
659 throw Error(1, "No root element defined in TIFF structure");
664 if (!tiffHeader->read(map_data, map_len)) throw Error(3, "TIFF");
665 #if EXIV2_TEST_VERSION(0,16,0)
666 rootDir->setStart(map_data + tiffHeader->offset());
668 rootDir->setStart(map_data + tiffHeader->ifdOffset());
674 rootDir->setStart(map_data + cr2Header->offset());
677 TiffRwState::AutoPtr state(new TiffRwState(tiffHeader ? tiffHeader->byteOrder() : littleEndian, 0, createFct));
679 TiffReader reader(map_data,
684 rootDir->accept(reader);
694 if (map_data && munmap(map_data, map_len) == -1)
696 printf("Failed to unmap file \n");
700 const Value * RawFile::find(uint16_t tag, uint16_t group)
702 TiffFinder finder(tag, group);
703 rootDir->accept(finder);
704 TiffEntryBase* te = dynamic_cast<TiffEntryBase*>(finder.result());
707 if (debug) printf("(tag: %04x %04x) ", tag, group);
714 unsigned long RawFile::preview_offset()
717 if (offset) return offset;
719 if (type == Exiv2::ImageType::cr2)
721 val = find(0x111, Group::ifd0);
722 if (val) return val->toLong();
727 val = find(0x201, Group::sub0_0);
728 if (val) return val->toLong();
730 val = find(0x201, Group::ifd0);
731 if (val) return val->toLong();
733 val = find(0x201, Group::ignr); // for PEF files, originally it was probably ifd2
734 if (val) return val->toLong();
736 val = find(0x111, Group::sub0_1); // dng
737 if (val) return val->toLong();
743 extern "C" gint format_raw_img_exif_offsets_fd(int fd, const gchar *path,
744 unsigned char *header_data, const guint header_len,
745 guint *image_offset, guint *exif_offset)
748 unsigned long offset;
750 /* given image pathname, first do simple (and fast) file extension test */
751 if (!filter_file_class(path, FORMAT_CLASS_RAWIMAGE)) return 0;
755 if (debug) printf("%s: offset ", path);
756 offset = rf.preview_offset();
757 if (debug) printf("%lu\n", offset);
759 catch (Exiv2::AnyError& e) {
760 std::cout << "Caught Exiv2 exception '" << e << "'\n";
764 if (image_offset && offset > 0)
766 *image_offset = offset;
767 if ((unsigned long) lseek(fd, *image_offset, SEEK_SET) != *image_offset)
769 printf("Failed to seek to embedded image\n");
772 if (*exif_offset) *exif_offset = 0;