Exiv2
cr2header_int.hpp
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27 #ifndef CR2IMAGE_INT_HPP_
28 #define CR2IMAGE_INT_HPP_
29 
30 // *****************************************************************************
31 // included header files
32 #include "tiffimage_int.hpp"
33 
34 // *****************************************************************************
35 // namespace extensions
36 namespace Exiv2 {
37  namespace Internal {
38 
39 // *****************************************************************************
40 // class definitions
41 
43  class Cr2Header : public TiffHeaderBase {
44  public:
46 
47  explicit Cr2Header(ByteOrder byteOrder =littleEndian);
50  ~Cr2Header();
52 
54 
55  bool read(const byte* pData, uint32_t size);
57 
59 
60  DataBuf write() const;
61  bool isImageTag( uint16_t tag,
62  IfdId group,
63  const PrimaryGroups* pPrimaryGroups) const;
65 
67  static uint32_t offset2addr() { return 12; }
68 
69  private:
70  // DATA
71  uint32_t offset2_;
72  static const char* cr2sig_;
73  }; // class Cr2Header
74 
75 }} // namespace Internal, Exiv2
76 
77 #endif // #ifndef CR2IMAGE_INT_HPP_
Exiv2::Internal::Cr2Header::write
DataBuf write() const
Return the image header in binary format. The caller owns this data and DataBuf ensures that it will ...
Definition: cr2header_int.cpp:41
Exiv2::DataBuf::pData_
byte * pData_
Pointer to the buffer, 0 if none has been allocated.
Definition: types.hpp:258
Exiv2::Internal::TiffHeaderBase
Abstract base class defining the interface of an image header. Used internally by classes for TIFF-ba...
Definition: tiffimage_int.hpp:52
Exiv2::Internal::IfdId
IfdId
Type to specify the IFD to which a metadata belongs.
Definition: tags_int.hpp:46
Exiv2::Internal::Cr2Header::read
bool read(const byte *pData, uint32_t size)
Read the image header from a data buffer. Return false if the data buffer does not contain an image h...
Definition: cr2header_int.cpp:18
Exiv2::Internal::Cr2Header::offset2addr
static uint32_t offset2addr()
Return the address of offset2 from the start of the header.
Definition: cr2header_int.hpp:67
Exiv2::DataBuf
Utility class containing a character array. All it does is to take care of memory allocation and dele...
Definition: types.hpp:193
Exiv2::us2Data
EXIV2API long us2Data(byte *buf, uint16_t s, ByteOrder byteOrder)
Convert an unsigned short to data, write the data to the buffer, return number of bytes written.
Definition: types.cpp:390
Exiv2::Internal::PrimaryGroups
std::vector< IfdId > PrimaryGroups
Type for a list of primary image groups.
Definition: tifffwd_int.hpp:107
Exiv2
Provides classes and functions to encode and decode Exif and Iptc data. The libexiv2 API consists of ...
Definition: asfvideo.hpp:36
Exiv2::Internal::isTiffImageTag
bool isTiffImageTag(uint16_t tag, IfdId group)
Convenience function to check if tag, group is in the list of TIFF image tags.
Definition: tiffimage_int.cpp:1993
Exiv2::Internal::Cr2Header
Canon CR2 header structure.
Definition: cr2header_int.hpp:43
Exiv2::ul2Data
EXIV2API long ul2Data(byte *buf, uint32_t l, ByteOrder byteOrder)
Convert an unsigned long to data, write the data to the buffer, return number of bytes written.
Definition: types.cpp:403
Exiv2::getUShort
EXIV2API uint16_t getUShort(const byte *buf, ByteOrder byteOrder)
Read a 2 byte unsigned short value from the data buffer.
Definition: types.cpp:273
Exiv2::ByteOrder
ByteOrder
Type to express the byte order (little or big endian)
Definition: types.hpp:102
Exiv2::Internal::Cr2Header::Cr2Header
Cr2Header(ByteOrder byteOrder=littleEndian)
Default constructor.
Definition: cr2header_int.cpp:8
Exiv2::Internal::Cr2Header::~Cr2Header
~Cr2Header()
Destructor.
Definition: cr2header_int.cpp:14
Exiv2::Internal::Cr2Header::isImageTag
bool isImageTag(uint16_t tag, IfdId group, const PrimaryGroups *pPrimaryGroups) const
Return true if the Exif tag from group is an image tag.
Definition: cr2header_int.cpp:65
Exiv2::Internal::TiffHeaderBase::setOffset
virtual void setOffset(uint32_t offset)
Set the offset to the start of the root directory.
Definition: tiffimage_int.cpp:1971
Exiv2::Internal::TiffHeaderBase::size
virtual uint32_t size() const
Return the size (in bytes) of the image header.
Definition: tiffimage_int.cpp:1976
Exiv2::Internal::TiffHeaderBase::setByteOrder
virtual void setByteOrder(ByteOrder byteOrder)
Set the byte order.
Definition: tiffimage_int.cpp:1961
Exiv2::Internal::TiffHeaderBase::tag
virtual uint16_t tag() const
Return the tag value (magic number) which identifies the buffer as TIFF data.
Definition: tiffimage_int.cpp:1981
Exiv2::Internal::TiffHeaderBase::byteOrder
virtual ByteOrder byteOrder() const
Return the byte order (little or big endian).
Definition: tiffimage_int.cpp:1956
Exiv2::getULong
EXIV2API uint32_t getULong(const byte *buf, ByteOrder byteOrder)
Read a 4 byte unsigned long value from the data buffer.
Definition: types.cpp:278