Exiv2
tiffvisitor_int.hpp
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20 #ifndef TIFFVISITOR_INT_HPP_
21 #define TIFFVISITOR_INT_HPP_
22 
23 // *****************************************************************************
24 // included header files
25 #include "exif.hpp"
26 #include "tifffwd_int.hpp"
27 #include "types.hpp"
28 
29 // + standard includes
30 #include <memory>
31 #include <iostream>
32 #include <iomanip>
33 #include <cassert>
34 #include <map>
35 #include <set>
36 #include <vector>
37 
38 // *****************************************************************************
39 // namespace extensions
40 namespace Exiv2 {
41 
42  class IptcData;
43  class XmpData;
44 
45  namespace Internal {
46 
47 // *****************************************************************************
48 // class definitions
49 
65  class TiffVisitor {
66  public:
68  enum GoEvent {
73  // Note: If you add more events here, adjust the events_ constant too!
74  };
75 
76  private:
77  static const int events_ = 2;
78  bool go_[events_];
79 
80  public:
82 
83  TiffVisitor();
86  virtual ~TiffVisitor();
88 
90 
91 
102  void setGo(GoEvent event, bool go);
104  virtual void visitEntry(TiffEntry* object) =0;
106  virtual void visitDataEntry(TiffDataEntry* object) =0;
108  virtual void visitImageEntry(TiffImageEntry* object) =0;
110  virtual void visitSizeEntry(TiffSizeEntry* object) =0;
112  virtual void visitDirectory(TiffDirectory* object) =0;
117  virtual void visitDirectoryNext(TiffDirectory* object);
122  virtual void visitDirectoryEnd(TiffDirectory* object);
124  virtual void visitSubIfd(TiffSubIfd* object) =0;
126  virtual void visitMnEntry(TiffMnEntry* object) =0;
128  virtual void visitIfdMakernote(TiffIfdMakernote* object) =0;
130  virtual void visitIfdMakernoteEnd(TiffIfdMakernote* object);
132  virtual void visitBinaryArray(TiffBinaryArray* object) =0;
137  virtual void visitBinaryArrayEnd(TiffBinaryArray* object);
139  virtual void visitBinaryElement(TiffBinaryElement* object) =0;
141 
143 
144  bool go(GoEvent event) const;
147 
148  }; // class TiffVisitor
149 
156  class TiffFinder : public TiffVisitor {
157  public:
159 
160  TiffFinder(uint16_t tag, IfdId group)
162  : tag_(tag), group_(group), tiffComponent_(0) {}
164  virtual ~TiffFinder();
166 
168 
169  virtual void visitEntry(TiffEntry* object);
172  virtual void visitDataEntry(TiffDataEntry* object);
174  virtual void visitImageEntry(TiffImageEntry* object);
176  virtual void visitSizeEntry(TiffSizeEntry* object);
178  virtual void visitDirectory(TiffDirectory* object);
180  virtual void visitSubIfd(TiffSubIfd* object);
182  virtual void visitMnEntry(TiffMnEntry* object);
184  virtual void visitIfdMakernote(TiffIfdMakernote* object);
186  virtual void visitBinaryArray(TiffBinaryArray* object);
188  virtual void visitBinaryElement(TiffBinaryElement* object);
189 
191  void findObject(TiffComponent* object);
193  void init(uint16_t tag, IfdId group);
195 
197 
198 
202  TiffComponent* result() const { return tiffComponent_; }
204 
205  private:
206  uint16_t tag_;
207  IfdId group_;
208  TiffComponent* tiffComponent_;
209  }; // class TiffFinder
210 
216  class TiffCopier : public TiffVisitor {
217  public:
219 
220 
228  TiffCopier( TiffComponent* pRoot,
229  uint32_t root,
230  const TiffHeaderBase* pHeader,
231  const PrimaryGroups* pPrimaryGroups);
233  virtual ~TiffCopier();
235 
237 
238  virtual void visitEntry(TiffEntry* object);
241  virtual void visitDataEntry(TiffDataEntry* object);
243  virtual void visitImageEntry(TiffImageEntry* object);
245  virtual void visitSizeEntry(TiffSizeEntry* object);
247  virtual void visitDirectory(TiffDirectory* object);
249  virtual void visitSubIfd(TiffSubIfd* object);
251  virtual void visitMnEntry(TiffMnEntry* object);
253  virtual void visitIfdMakernote(TiffIfdMakernote* object);
255  virtual void visitBinaryArray(TiffBinaryArray* object);
257  virtual void visitBinaryElement(TiffBinaryElement* object);
258 
260  void copyObject(TiffComponent* object);
262 
263  private:
264  TiffComponent* pRoot_;
265  uint32_t root_;
266  const TiffHeaderBase* pHeader_;
267  const PrimaryGroups* pPrimaryGroups_;
268  }; // class TiffCopier
269 
276  class TiffDecoder : public TiffVisitor {
277  public:
279 
280 
285  TiffDecoder(
286  ExifData& exifData,
287  IptcData& iptcData,
288  XmpData& xmpData,
289  TiffComponent* const pRoot,
290  FindDecoderFct findDecoderFct
291  );
293  virtual ~TiffDecoder();
295 
297 
298  virtual void visitEntry(TiffEntry* object);
301  virtual void visitDataEntry(TiffDataEntry* object);
303  virtual void visitImageEntry(TiffImageEntry* object);
305  virtual void visitSizeEntry(TiffSizeEntry* object);
307  virtual void visitDirectory(TiffDirectory* object);
309  virtual void visitSubIfd(TiffSubIfd* object);
311  virtual void visitMnEntry(TiffMnEntry* object);
313  virtual void visitIfdMakernote(TiffIfdMakernote* object);
315  virtual void visitBinaryArray(TiffBinaryArray* object);
317  virtual void visitBinaryElement(TiffBinaryElement* object);
318 
320  void decodeTiffEntry(const TiffEntryBase* object);
322  void decodeStdTiffEntry(const TiffEntryBase* object);
324  void decodeIptc(const TiffEntryBase* object);
326  void decodeXmp(const TiffEntryBase* object);
328  void decodeCanonAFInfo(const TiffEntryBase* object);
330 
331  private:
333 
334 
342  void getObjData(byte const*& pData,
343  long& size,
344  uint16_t tag,
345  IfdId group,
346  const TiffEntryBase* object);
348 
349  private:
350  // DATA
351  ExifData& exifData_;
352  IptcData& iptcData_;
353  XmpData& xmpData_;
354  TiffComponent* const pRoot_;
355  const FindDecoderFct findDecoderFct_;
356  std::string make_;
357  bool decodedIptc_;
358 
359  }; // class TiffDecoder
360 
376  class TiffEncoder : public TiffVisitor {
377  public:
379 
380 
385  TiffEncoder(
386  const ExifData& exifData,
387  const IptcData& iptcData,
388  const XmpData& xmpData,
389  TiffComponent* pRoot,
390  const bool isNewImage,
391  const PrimaryGroups* pPrimaryGroups,
392  const TiffHeaderBase* pHeader,
393  FindEncoderFct findEncoderFct
394  );
396  virtual ~TiffEncoder();
398 
400 
401  virtual void visitEntry(TiffEntry* object);
404  virtual void visitDataEntry(TiffDataEntry* object);
406  virtual void visitImageEntry(TiffImageEntry* object);
408  virtual void visitSizeEntry(TiffSizeEntry* object);
410  virtual void visitDirectory(TiffDirectory* object);
412  virtual void visitDirectoryNext(TiffDirectory* object);
414  virtual void visitSubIfd(TiffSubIfd* object);
416  virtual void visitMnEntry(TiffMnEntry* object);
418  virtual void visitIfdMakernote(TiffIfdMakernote* object);
420  virtual void visitIfdMakernoteEnd(TiffIfdMakernote* object);
422  virtual void visitBinaryArray(TiffBinaryArray* object);
424  virtual void visitBinaryArrayEnd(TiffBinaryArray* object);
426  virtual void visitBinaryElement(TiffBinaryElement* object);
427 
447  void encodeTiffComponent(
448  TiffEntryBase* object,
449  const Exifdatum* datum =0
450  );
451 
453  void encodeBinaryElement(TiffBinaryElement* object, const Exifdatum* datum);
455  void encodeBinaryArray(TiffBinaryArray* object, const Exifdatum* datum);
457  void encodeDataEntry(TiffDataEntry* object, const Exifdatum* datum);
459  void encodeTiffEntry(TiffEntry* object, const Exifdatum* datum);
461  void encodeImageEntry(TiffImageEntry* object, const Exifdatum* datum);
463  void encodeMnEntry(TiffMnEntry* object, const Exifdatum* datum);
465  void encodeSizeEntry(TiffSizeEntry* object, const Exifdatum* datum);
467  void encodeSubIfd(TiffSubIfd* object, const Exifdatum* datum);
468 
470  void encodeTiffEntryBase(TiffEntryBase* object, const Exifdatum* datum);
472  void encodeOffsetEntry(TiffEntryBase* object, const Exifdatum* datum);
473 
475  // Todo void encodeNikonSubIfd(TiffEntryBase* object, const Exifdatum* datum);
476 
478  void encodeIptc(TiffEntryBase* object, const Exifdatum* datum);
491  void add(
492  TiffComponent* pRootDir,
493  TiffComponent* pSourceDir,
494  uint32_t root
495  );
497  void setDirty(bool flag =true);
499 
501 
502 
506  ByteOrder byteOrder() const { return byteOrder_; }
511  bool dirty() const;
513  WriteMethod writeMethod() const { return writeMethod_; }
515 
516  private:
518 
519 
524  void encodeIptc();
529  void encodeXmp();
531 
533 
534 
539  uint32_t updateDirEntry(byte* buf,
541  TiffComponent* pTiffComponent) const;
551  bool isImageTag(uint16_t tag, IfdId group) const;
553 
554  private:
555  // DATA
556  ExifData exifData_;
557  const IptcData& iptcData_;
558  const XmpData& xmpData_;
559  bool del_;
560  const TiffHeaderBase* pHeader_;
561  TiffComponent* pRoot_;
562  const bool isNewImage_;
563  const PrimaryGroups* pPrimaryGroups_;
564  TiffComponent* pSourceTree_;
565  ByteOrder byteOrder_;
566  ByteOrder origByteOrder_;
567  const FindEncoderFct findEncoderFct_;
568  std::string make_;
569  bool dirty_;
570  WriteMethod writeMethod_;
571 
572  }; // class TiffEncoder
573 
580  class TiffRwState {
581  public:
583 
586  uint32_t baseOffset)
587  : byteOrder_(byteOrder),
588  baseOffset_(baseOffset) {}
590 
592 
593 
597  ByteOrder byteOrder() const { return byteOrder_; }
609  uint32_t baseOffset() const { return baseOffset_; }
611 
612  private:
613  ByteOrder byteOrder_;
614  uint32_t baseOffset_;
615  }; // TiffRwState
616 
622  class TiffReader : public TiffVisitor {
623  public:
625 
626 
635  TiffReader(const byte* pData,
636  uint32_t size,
637  TiffComponent* pRoot,
638  TiffRwState state);
639 
641  virtual ~TiffReader();
643 
645 
646  virtual void visitEntry(TiffEntry* object);
649  virtual void visitDataEntry(TiffDataEntry* object);
651  virtual void visitImageEntry(TiffImageEntry* object);
653  virtual void visitSizeEntry(TiffSizeEntry* object);
655  virtual void visitDirectory(TiffDirectory* object);
657  virtual void visitSubIfd(TiffSubIfd* object);
659  virtual void visitMnEntry(TiffMnEntry* object);
661  virtual void visitIfdMakernote(TiffIfdMakernote* object);
663  virtual void visitIfdMakernoteEnd(TiffIfdMakernote* object);
665  virtual void visitBinaryArray(TiffBinaryArray* object);
667  virtual void visitBinaryElement(TiffBinaryElement* object);
668 
670  void readTiffEntry(TiffEntryBase* object);
672  void readDataEntryBase(TiffDataEntryBase* object);
679  void setMnState(const TiffRwState* state =0);
681  void setOrigState();
683  bool circularReference(const byte* start, IfdId group);
685  int nextIdx(IfdId group);
686 
696  void postProcess();
698 
700 
701  ByteOrder byteOrder() const;
704  uint32_t baseOffset() const;
706 
707  private:
708  typedef std::map<const byte*, IfdId> DirList;
709  typedef std::map<uint16_t, int> IdxSeq;
710  typedef std::vector<TiffComponent*> PostList;
711 
712  // DATA
713  const byte* pData_;
714  const uint32_t size_;
715  const byte* pLast_;
716  TiffComponent* const pRoot_;
717  TiffRwState* pState_;
718  TiffRwState origState_;
719  TiffRwState mnState_;
720  DirList dirList_;
721  IdxSeq idxSeq_;
722  PostList postList_;
723  bool postProc_;
724  }; // class TiffReader
725 
726 }} // namespace Internal, Exiv2
727 
728 #endif // #ifndef TIFFVISITOR_INT_HPP_
A container for Exif data. This is a top-level class of the Exiv2 library. The container holds Exifda...
Definition: exif.hpp:434
An Exif metadatum, consisting of an ExifKey and a Value and methods to manipulate these.
Definition: exif.hpp:59
Composite to model an array of different tags. The tag types as well as other aspects of the array ar...
Definition: tiffcomposite_int.hpp:1354
Element of a TiffBinaryArray.
Definition: tiffcomposite_int.hpp:1493
Interface class for components of a TIFF directory hierarchy (Composite pattern). Both TIFF directori...
Definition: tiffcomposite_int.hpp:171
Copy all image tags from the source tree (the tree that is traversed) to a target tree,...
Definition: tiffvisitor_int.hpp:216
virtual void visitEntry(TiffEntry *object)
Copy a TIFF entry if it is an image tag.
Definition: tiffvisitor_int.cpp:225
virtual void visitMnEntry(TiffMnEntry *object)
Copy a TIFF makernote if it is an image tag.
Definition: tiffvisitor_int.cpp:255
virtual void visitDirectory(TiffDirectory *object)
Copy a TIFF directory if it is an image tag.
Definition: tiffvisitor_int.cpp:245
virtual void visitSizeEntry(TiffSizeEntry *object)
Copy a TIFF size entry if it is an image tag.
Definition: tiffvisitor_int.cpp:240
virtual void visitIfdMakernote(TiffIfdMakernote *object)
Copy an IFD makernote if it is an image tag.
Definition: tiffvisitor_int.cpp:260
virtual void visitBinaryElement(TiffBinaryElement *object)
Copy an element of a binary array if it is an image tag.
Definition: tiffvisitor_int.cpp:270
virtual void visitImageEntry(TiffImageEntry *object)
Copy a TIFF image entry if it is an image tag.
Definition: tiffvisitor_int.cpp:235
virtual void visitSubIfd(TiffSubIfd *object)
Copy a TIFF sub-IFD if it is an image tag.
Definition: tiffvisitor_int.cpp:250
virtual void visitBinaryArray(TiffBinaryArray *object)
Copy a binary array if it is an image tag.
Definition: tiffvisitor_int.cpp:265
TiffCopier(TiffComponent *pRoot, uint32_t root, const TiffHeaderBase *pHeader, const PrimaryGroups *pPrimaryGroups)
Constructor.
Definition: tiffvisitor_int.cpp:190
virtual ~TiffCopier()
Virtual destructor.
Definition: tiffvisitor_int.cpp:204
void copyObject(TiffComponent *object)
Check if object is an image tag and if so, copy it to the target tree.
Definition: tiffvisitor_int.cpp:208
virtual void visitDataEntry(TiffDataEntry *object)
Copy a TIFF data entry if it is an image tag.
Definition: tiffvisitor_int.cpp:230
Interface for a standard TIFF IFD entry consisting of a value which is a set of offsets to a data are...
Definition: tiffcomposite_int.hpp:595
A standard TIFF IFD entry consisting of a value which is an offset to a data area and the data area....
Definition: tiffcomposite_int.hpp:650
TIFF composite visitor to decode metadata from the TIFF tree and add it to an Image,...
Definition: tiffvisitor_int.hpp:276
TiffDecoder(ExifData &exifData, IptcData &iptcData, XmpData &xmpData, TiffComponent *const pRoot, FindDecoderFct findDecoderFct)
Constructor, taking metadata containers to add the metadata to, the root element of the composite to ...
Definition: tiffvisitor_int.cpp:275
virtual void visitEntry(TiffEntry *object)
Decode a TIFF entry.
Definition: tiffvisitor_int.cpp:311
void decodeStdTiffEntry(const TiffEntryBase *object)
Decode a standard TIFF entry.
Definition: tiffvisitor_int.cpp:553
virtual ~TiffDecoder()
Virtual destructor.
Definition: tiffvisitor_int.cpp:307
void decodeIptc(const TiffEntryBase *object)
Decode IPTC data from an IPTCNAA tag or Photoshop ImageResources.
Definition: tiffvisitor_int.cpp:413
void decodeCanonAFInfo(const TiffEntryBase *object)
Decode Exif.Canon.AFInfo.
Definition: tiffvisitor_int.cpp:471
virtual void visitMnEntry(TiffMnEntry *object)
Decode a TIFF makernote.
Definition: tiffvisitor_int.cpp:341
virtual void visitBinaryElement(TiffBinaryElement *object)
Decode an element of a binary array.
Definition: tiffvisitor_int.cpp:569
virtual void visitDirectory(TiffDirectory *object)
Decode a TIFF directory.
Definition: tiffvisitor_int.cpp:331
void decodeTiffEntry(const TiffEntryBase *object)
Entry function, determines how to decode each tag.
Definition: tiffvisitor_int.cpp:537
virtual void visitImageEntry(TiffImageEntry *object)
Decode a TIFF image entry.
Definition: tiffvisitor_int.cpp:321
virtual void visitIfdMakernote(TiffIfdMakernote *object)
Decode an IFD makernote.
Definition: tiffvisitor_int.cpp:347
virtual void visitSubIfd(TiffSubIfd *object)
Decode a TIFF sub-IFD.
Definition: tiffvisitor_int.cpp:336
virtual void visitSizeEntry(TiffSizeEntry *object)
Decode a TIFF size entry.
Definition: tiffvisitor_int.cpp:326
void decodeXmp(const TiffEntryBase *object)
Decode XMP packet from an XMLPacket tag.
Definition: tiffvisitor_int.cpp:386
virtual void visitDataEntry(TiffDataEntry *object)
Decode a TIFF data entry.
Definition: tiffvisitor_int.cpp:316
virtual void visitBinaryArray(TiffBinaryArray *object)
Decode a binary array.
Definition: tiffvisitor_int.cpp:562
This class models a TIFF directory (Ifd). It is a composite component of the TIFF tree.
Definition: tiffcomposite_int.hpp:858
TIFF composite visitor to encode metadata from an image to the TIFF tree. The metadata containers and...
Definition: tiffvisitor_int.hpp:376
virtual void visitEntry(TiffEntry *object)
Encode a TIFF entry.
Definition: tiffvisitor_int.cpp:724
virtual ~TiffEncoder()
Virtual destructor.
Definition: tiffvisitor_int.cpp:623
void encodeMnEntry(TiffMnEntry *object, const Exifdatum *datum)
Callback encoder function for a Makernote entry.
Definition: tiffvisitor_int.cpp:1071
void encodeSubIfd(TiffSubIfd *object, const Exifdatum *datum)
Callback encoder function for a sub-IFD entry.
Definition: tiffvisitor_int.cpp:1082
virtual void visitSizeEntry(TiffSizeEntry *object)
Encode a TIFF size entry.
Definition: tiffvisitor_int.cpp:739
virtual void visitDirectoryNext(TiffDirectory *object)
Update directory entries.
Definition: tiffvisitor_int.cpp:749
virtual void visitIfdMakernoteEnd(TiffIfdMakernote *object)
Reset encoder to its original state, undo makernote specific settings.
Definition: tiffvisitor_int.cpp:832
void encodeTiffEntryBase(TiffEntryBase *object, const Exifdatum *datum)
Special encoder function for the base part of a TIFF entry.
Definition: tiffvisitor_int.cpp:1087
virtual void visitBinaryElement(TiffBinaryElement *object)
Encode an element of a binary array.
Definition: tiffvisitor_int.cpp:873
void setDirty(bool flag=true)
Set the dirty flag and end of traversing signal.
Definition: tiffvisitor_int.cpp:712
void encodeImageEntry(TiffImageEntry *object, const Exifdatum *datum)
Callback encoder function for an image entry.
Definition: tiffvisitor_int.cpp:999
void encodeTiffComponent(TiffEntryBase *object, const Exifdatum *datum=0)
Top level encoder function. Determines how to encode each TIFF component. This function is called by ...
Definition: tiffvisitor_int.cpp:890
virtual void visitIfdMakernote(TiffIfdMakernote *object)
Encode an IFD makernote.
Definition: tiffvisitor_int.cpp:803
virtual void visitBinaryArrayEnd(TiffBinaryArray *object)
Re-encrypt binary array if necessary.
Definition: tiffvisitor_int.cpp:846
TiffEncoder(const ExifData &exifData, const IptcData &iptcData, const XmpData &xmpData, TiffComponent *pRoot, const bool isNewImage, const PrimaryGroups *pPrimaryGroups, const TiffHeaderBase *pHeader, FindEncoderFct findEncoderFct)
Constructor, taking the root element of the composite to encode to, the image with the metadata to en...
Definition: tiffvisitor_int.cpp:574
void encodeTiffEntry(TiffEntry *object, const Exifdatum *datum)
Callback encoder function for a standard TIFF entry.
Definition: tiffvisitor_int.cpp:994
void encodeBinaryArray(TiffBinaryArray *object, const Exifdatum *datum)
Callback encoder function for a binary array.
Definition: tiffvisitor_int.cpp:950
void encodeOffsetEntry(TiffEntryBase *object, const Exifdatum *datum)
Special encoder function for an offset entry.
Definition: tiffvisitor_int.cpp:1112
void encodeIptc(TiffEntryBase *object, const Exifdatum *datum)
Special encoder function to encode SubIFD contents to Image group if it contains primary image data.
void encodeBinaryElement(TiffBinaryElement *object, const Exifdatum *datum)
Callback encoder function for an element of a binary array.
Definition: tiffvisitor_int.cpp:955
bool dirty() const
True if any tag was deleted or allocated in the process of visiting a TIFF composite tree.
Definition: tiffvisitor_int.cpp:718
virtual void visitSubIfd(TiffSubIfd *object)
Encode a TIFF sub-IFD.
Definition: tiffvisitor_int.cpp:784
virtual void visitImageEntry(TiffImageEntry *object)
Encode a TIFF image entry.
Definition: tiffvisitor_int.cpp:734
void add(TiffComponent *pRootDir, TiffComponent *pSourceDir, uint32_t root)
Add metadata from image to the TIFF composite.
Definition: tiffvisitor_int.cpp:1138
virtual void visitDirectory(TiffDirectory *object)
Encode a TIFF directory.
Definition: tiffvisitor_int.cpp:744
virtual void visitDataEntry(TiffDataEntry *object)
Encode a TIFF data entry.
Definition: tiffvisitor_int.cpp:729
void encodeDataEntry(TiffDataEntry *object, const Exifdatum *datum)
Callback encoder function for a data entry.
Definition: tiffvisitor_int.cpp:960
void encodeSizeEntry(TiffSizeEntry *object, const Exifdatum *datum)
Callback encoder function for a size entry.
Definition: tiffvisitor_int.cpp:1077
virtual void visitBinaryArray(TiffBinaryArray *object)
Encode a binary array.
Definition: tiffvisitor_int.cpp:839
ByteOrder byteOrder() const
Return the applicable byte order. May be different for the Makernote and the rest of the TIFF entries...
Definition: tiffvisitor_int.hpp:506
virtual void visitMnEntry(TiffMnEntry *object)
Encode a TIFF makernote.
Definition: tiffvisitor_int.cpp:789
WriteMethod writeMethod() const
Return the write method used.
Definition: tiffvisitor_int.hpp:513
This abstract base class provides the common functionality of an IFD directory entry and defines an e...
Definition: tiffcomposite_int.hpp:411
A standard TIFF IFD entry.
Definition: tiffcomposite_int.hpp:563
Search the composite for a component with tag and group. Return a pointer to the component or 0,...
Definition: tiffvisitor_int.hpp:156
virtual void visitBinaryElement(TiffBinaryElement *object)
Find tag and group in an element of a binary array.
Definition: tiffvisitor_int.cpp:185
virtual void visitMnEntry(TiffMnEntry *object)
Find tag and group in a TIFF makernote.
Definition: tiffvisitor_int.cpp:170
virtual void visitEntry(TiffEntry *object)
Find tag and group in a TIFF entry.
Definition: tiffvisitor_int.cpp:140
virtual void visitImageEntry(TiffImageEntry *object)
Find tag and group in a TIFF image entry.
Definition: tiffvisitor_int.cpp:150
virtual void visitSizeEntry(TiffSizeEntry *object)
Find tag and group in a TIFF size entry.
Definition: tiffvisitor_int.cpp:155
virtual ~TiffFinder()
Virtual destructor.
Definition: tiffvisitor_int.cpp:128
virtual void visitIfdMakernote(TiffIfdMakernote *object)
Find tag and group in an IFD makernote.
Definition: tiffvisitor_int.cpp:175
virtual void visitDataEntry(TiffDataEntry *object)
Find tag and group in a TIFF data entry.
Definition: tiffvisitor_int.cpp:145
virtual void visitDirectory(TiffDirectory *object)
Find tag and group in a TIFF directory.
Definition: tiffvisitor_int.cpp:160
virtual void visitSubIfd(TiffSubIfd *object)
Find tag and group in a TIFF sub-IFD.
Definition: tiffvisitor_int.cpp:165
void init(uint16_t tag, IfdId group)
Initialize the Finder for a new search.
Definition: tiffvisitor_int.cpp:120
TiffComponent * result() const
Return the search result. 0 if no TIFF component was found for the tag and group combination.
Definition: tiffvisitor_int.hpp:202
virtual void visitBinaryArray(TiffBinaryArray *object)
Find tag and group in a binary array.
Definition: tiffvisitor_int.cpp:180
TiffFinder(uint16_t tag, IfdId group)
Constructor, taking tag and group of the component to find.
Definition: tiffvisitor_int.hpp:161
void findObject(TiffComponent *object)
Check if object matches tag and group.
Definition: tiffvisitor_int.cpp:132
Abstract base class defining the interface of an image header. Used internally by classes for TIFF-ba...
Definition: tiffimage_int.hpp:52
Tiff IFD Makernote. This is a concrete class suitable for all IFD makernotes.
Definition: tiffcomposite_int.hpp:1147
A standard TIFF IFD entry consisting of a value which is an array of offsets to image data areas....
Definition: tiffcomposite_int.hpp:733
This class is the basis for Makernote support in TIFF. It contains a pointer to a concrete Makernote....
Definition: tiffcomposite_int.hpp:1071
TIFF composite visitor to read the TIFF structure from a block of memory and build the composite from...
Definition: tiffvisitor_int.hpp:622
void readDataEntryBase(TiffDataEntryBase *object)
Read a TiffDataEntryBase from the data buffer.
Definition: tiffvisitor_int.cpp:1264
ByteOrder byteOrder() const
Return the byte order.
Definition: tiffvisitor_int.cpp:1252
virtual void visitIfdMakernote(TiffIfdMakernote *object)
Read an IFD makernote from the data buffer.
Definition: tiffvisitor_int.cpp:1489
virtual void visitSizeEntry(TiffSizeEntry *object)
Read a TIFF size entry from the data buffer.
Definition: tiffvisitor_int.cpp:1292
void setMnState(const TiffRwState *state=0)
Set the state of the reader to one suitable for the Makernote.
Definition: tiffvisitor_int.cpp:1238
virtual void visitBinaryElement(TiffBinaryElement *object)
Read an element of a binary array from the data buffer.
Definition: tiffvisitor_int.cpp:1734
int nextIdx(IfdId group)
Return the next idx sequence number for group.
Definition: tiffvisitor_int.cpp:1319
void readTiffEntry(TiffEntryBase *object)
Read a standard TIFF entry from the data buffer.
Definition: tiffvisitor_int.cpp:1527
virtual void visitImageEntry(TiffImageEntry *object)
Read a TIFF image entry from the data buffer.
Definition: tiffvisitor_int.cpp:1287
virtual void visitDataEntry(TiffDataEntry *object)
Read a TIFF data entry from the data buffer.
Definition: tiffvisitor_int.cpp:1282
virtual void visitIfdMakernoteEnd(TiffIfdMakernote *object)
Reset reader to its original state, undo makernote specific settings.
Definition: tiffvisitor_int.cpp:1521
virtual void visitMnEntry(TiffMnEntry *object)
Read a TIFF makernote entry from the data buffer.
Definition: tiffvisitor_int.cpp:1465
virtual void visitEntry(TiffEntry *object)
Read a TIFF entry from the data buffer.
Definition: tiffvisitor_int.cpp:1277
virtual void visitBinaryArray(TiffBinaryArray *object)
Read a binary array from the data buffer.
Definition: tiffvisitor_int.cpp:1654
void setOrigState()
Set the state to the original state as set in the constructor.
Definition: tiffvisitor_int.cpp:1233
uint32_t baseOffset() const
Return the base offset. See class TiffRwState for details.
Definition: tiffvisitor_int.cpp:1258
TiffReader(const byte *pData, uint32_t size, TiffComponent *pRoot, TiffRwState state)
Constructor. The data buffer and table describing the TIFF structure of the data are set in the const...
Definition: tiffvisitor_int.cpp:1211
bool circularReference(const byte *start, IfdId group)
Check IFD directory pointer start for circular reference.
Definition: tiffvisitor_int.cpp:1305
virtual void visitDirectory(TiffDirectory *object)
Read a TIFF directory from the data buffer.
Definition: tiffvisitor_int.cpp:1335
void postProcess()
Read deferred components.
Definition: tiffvisitor_int.cpp:1324
virtual void visitSubIfd(TiffSubIfd *object)
Read a TIFF sub-IFD from the data buffer.
Definition: tiffvisitor_int.cpp:1415
virtual ~TiffReader()
Virtual destructor.
Definition: tiffvisitor_int.cpp:1229
Simple state class containing relevant state information for the TIFF reader. This is in a separate c...
Definition: tiffvisitor_int.hpp:580
ByteOrder byteOrder() const
Return the applicable byte order. May be different for the Makernote and the rest of the TIFF entries...
Definition: tiffvisitor_int.hpp:597
TiffRwState(ByteOrder byteOrder, uint32_t baseOffset)
Constructor.
Definition: tiffvisitor_int.hpp:585
uint32_t baseOffset() const
Return the base offset.
Definition: tiffvisitor_int.hpp:609
A TIFF IFD entry containing the size of a data area of a related TiffDataEntry. This component is use...
Definition: tiffcomposite_int.hpp:816
This class models a TIFF sub-directory (sub-IFD). A sub-IFD is an entry with one or more values that ...
Definition: tiffcomposite_int.hpp:982
Abstract base class defining the interface for TIFF composite visitors (Visitor pattern)
Definition: tiffvisitor_int.hpp:65
virtual void visitDataEntry(TiffDataEntry *object)=0
Operation to perform for a TIFF data entry.
bool go(GoEvent event) const
Check if stop flag for event is clear, return true if it's clear.
Definition: tiffvisitor_int.cpp:98
TiffVisitor()
Default constructor. Initialises all stop/go flags to true.
Definition: tiffvisitor_int.cpp:81
virtual void visitDirectoryNext(TiffDirectory *object)
Operation to perform for a TIFF directory, after all components and before the next entry is processe...
Definition: tiffvisitor_int.cpp:104
virtual ~TiffVisitor()
Virtual destructor.
Definition: tiffvisitor_int.cpp:88
virtual void visitBinaryArrayEnd(TiffBinaryArray *object)
Operation to perform for a TIFF binary array, at the end of the processing.
Definition: tiffvisitor_int.cpp:116
virtual void visitBinaryElement(TiffBinaryElement *object)=0
Operation to perform for an element of a binary array.
GoEvent
Events for the stop/go flag. See setGo().
Definition: tiffvisitor_int.hpp:68
@ geTraverse
Signal to control traversing of the composite tree.
Definition: tiffvisitor_int.hpp:70
@ geKnownMakernote
Signal used by TiffReader to signal an unknown makernote.
Definition: tiffvisitor_int.hpp:72
virtual void visitBinaryArray(TiffBinaryArray *object)=0
Operation to perform for a binary array.
virtual void visitSubIfd(TiffSubIfd *object)=0
Operation to perform for a TIFF sub-IFD.
virtual void visitDirectory(TiffDirectory *object)=0
Operation to perform for a TIFF directory.
virtual void visitImageEntry(TiffImageEntry *object)=0
Operation to perform for a TIFF image entry.
virtual void visitMnEntry(TiffMnEntry *object)=0
Operation to perform for the makernote component.
virtual void visitIfdMakernote(TiffIfdMakernote *object)=0
Operation to perform for an IFD makernote.
virtual void visitSizeEntry(TiffSizeEntry *object)=0
Operation to perform for a TIFF size entry.
void setGo(GoEvent event, bool go)
Set the stop/go flag: true for go, false for stop.
Definition: tiffvisitor_int.cpp:92
virtual void visitEntry(TiffEntry *object)=0
Operation to perform for a TIFF entry.
virtual void visitIfdMakernoteEnd(TiffIfdMakernote *object)
Operation to perform after processing an IFD makernote.
Definition: tiffvisitor_int.cpp:112
virtual void visitDirectoryEnd(TiffDirectory *object)
Operation to perform for a TIFF directory, at the end of the processing.
Definition: tiffvisitor_int.cpp:108
A container for IPTC data. This is a top-level class of the Exiv2 library.
Definition: iptc.hpp:170
A container for XMP data. This is a top-level class of the Exiv2 library.
Definition: xmp_exiv2.hpp:166
Encoding and decoding of Exif data.
DecoderFct(* FindDecoderFct)(const std::string &make, uint32_t extendedTag, IfdId group)
Type for a function pointer for a function to decode a TIFF component.
Definition: tifffwd_int.hpp:85
std::vector< IfdId > PrimaryGroups
Type for a list of primary image groups.
Definition: tifffwd_int.hpp:107
IfdId
Type to specify the IFD to which a metadata belongs.
Definition: tags_int.hpp:46
EncoderFct(* FindEncoderFct)(const std::string &make, uint32_t extendedTag, IfdId group)
Type for a function pointer for a function to encode a TIFF component.
Definition: tifffwd_int.hpp:91
Provides classes and functions to encode and decode Exif and Iptc data. The libexiv2 API consists of ...
Definition: asfvideo.hpp:36
ByteOrder
Type to express the byte order (little or big endian)
Definition: types.hpp:102
WriteMethod
Type to indicate write method used by TIFF parsers.
Definition: types.hpp:105