OpenRaw::Internals::IfdDir Class Reference

Inheritance diagram for OpenRaw::Internals::IfdDir:

Public Types
typedef std::shared_ptr< IfdDir >	Ref
typedef std::vector< Ref >	RefVec

Public Member Functions
	IfdDir (off_t _offset, IfdFileContainer &_container)
bool	isPrimary () const
bool	isThumbnail () const
off_t	offset () const
const IfdFileContainer &	container () const
bool	load ()
int	numTags ()
IfdEntry::Ref	getEntry (uint16_t id) const
template<typename T >
Option< T >	getValue (uint16_t id) const
Option< uint32_t >	getIntegerValue (uint16_t id)
off_t	nextIFD ()
Ref	getSubIFD (uint32_t idx=0) const
Option< std::vector< IfdDir::Ref > >	getSubIFDs ()
Ref	getExifIFD ()
Ref	getMakerNoteIfd ()

Detailed Description

Definition at line 44 of file ifddir.hpp.

Member Function Documentation

getExifIFD()

IfdDir::Ref OpenRaw::Internals::IfdDir::getExifIFD

(

)

get the Exif IFD.

Returns

Ref to the new IfdDir if found

The SubIFD is located at offset found in the field EXIF_TAG_SUB_IFDS

Definition at line 173 of file ifddir.cpp.

getIntegerValue()

Option< uint32_t > OpenRaw::Internals::IfdDir::getIntegerValue

(

uint16_t

id

)

Get an loosely typed integer value from an entry. This method is preferred over getLongValue() or getShortValue() unless you really want the strong typing that IFD structure provide

Parameters

id	the IFD field id

Returns

an Option<uint32_t> containing the value or none.

Definition at line 101 of file ifddir.cpp.

getMakerNoteIfd()

IfdDir::Ref OpenRaw::Internals::IfdDir::getMakerNoteIfd

(

)

get the MakerNote IFD.

Returns

Ref to the new MakerNoteDir if found

Definition at line 191 of file ifddir.cpp.

getSubIFD()

IfdDir::Ref OpenRaw::Internals::IfdDir::getSubIFD

(

uint32_t

idx = 0

)

const

get the SubIFD at index idx.

Returns

Ref to the new IfdDir if found

The SubIFD is locate at offset found in the field EXIF_TAG_SUB_IFDS

Definition at line 131 of file ifddir.cpp.

getSubIFDs()

Option< std::vector< IfdDir::Ref > > OpenRaw::Internals::IfdDir::getSubIFDs

(

)

get all SubIFDs

Returns

an option of ifds the list of IFDs Ref

Definition at line 151 of file ifddir.cpp.

getValue()

template<typename T >

Option<T> OpenRaw::Internals::IfdDir::getValue ( uint16_t  id ) const

inline

Get a T value from an entry

Parameters

id	the IFD field id

Returns

an Option<T> containing the value or none.

Definition at line 70 of file ifddir.hpp.

load()

bool OpenRaw::Internals::IfdDir::load

(

)

load the directory to memory

Definition at line 59 of file ifddir.cpp.

nextIFD()

off_t OpenRaw::Internals::IfdDir::nextIFD

(

)

get the offset of the next IFD in absolute

Definition at line 110 of file ifddir.cpp.

numTags()

int OpenRaw::Internals::IfdDir::numTags ( )

inline

return the number of entries

Definition at line 62 of file ifddir.hpp.

offset()

off_t OpenRaw::Internals::IfdDir::offset ( ) const

inline

return the offset

Definition at line 56 of file ifddir.hpp.

Referenced by OpenRaw::Internals::MakerNoteDir::createMakerNote().

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The documentation for this class was generated from the following files:

• lib/ifddir.hpp
• lib/ifddir.cpp