OpenRaw::Internals::IFDDir Class Reference

Classes
struct	isPrimary
struct	isThumbnail

Public Types
typedef boost::shared_ptr< IFDDir >	Ref
typedef std::vector< Ref >	RefVec

Public Member Functions
	IFDDir (off_t _offset, IFDFileContainer &_container)
off_t	offset () const
bool	load ()
int	numTags ()
IFDEntry::Ref	getEntry (uint16_t id) const
template<typename T >
bool	getValue (uint16_t id, T &v) const
bool	getIntegerValue (uint16_t id, uint32_t &v)
off_t	nextIFD ()
Ref	getSubIFD (uint32_t idx=0) const
bool	getSubIFDs (std::vector< IFDDir::Ref > &ifds)
Ref	getExifIFD ()

Detailed Description

Definition at line 37 of file ifddir.h.

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 locate at offset found in the field EXIF_TAG_SUB_IFDS

Definition at line 201 of file ifddir.cpp.

References getValue().

getIntegerValue()

bool OpenRaw::Internals::IFDDir::getIntegerValue	(	uint16_t	id,
		uint32_t &	v
	)

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

Return values

v	the long value

Returns

true if success

Definition at line 100 of file ifddir.cpp.

References OpenRaw::Internals::IFDTypeTrait< T >::get().

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 154 of file ifddir.cpp.

getSubIFDs()

bool OpenRaw::Internals::IFDDir::getSubIFDs

(

std::vector< IFDDir::Ref > &

ifds

)

get all SubIFDs

Return values

ifds	the list of IFDs Ref

Returns

true if found / success

Definition at line 175 of file ifddir.cpp.

getValue()

template<typename T >

bool OpenRaw::Internals::IFDDir::getValue ( uint16_t  id, T &  v  ) const

inline

Get a T value from an entry

Parameters

id	the IFD field id

Return values

v	the long value

Returns

true if success

Definition at line 75 of file ifddir.h.

References OpenRaw::Internals::IFDTypeTrait< T >::get().

Referenced by getExifIFD().

load()

bool OpenRaw::Internals::IFDDir::load

(

)

load the directory to memory

Definition at line 63 of file ifddir.cpp.

References OpenRaw::IO::Stream::read(), OpenRaw::Internals::RawContainer::readInt16(), OpenRaw::Internals::RawContainer::readInt32(), OpenRaw::Internals::RawContainer::readUInt16(), and OpenRaw::IO::Stream::seek().

nextIFD()

off_t OpenRaw::Internals::IFDDir::nextIFD

(

)

get the offset of the next IFD in absolute

Definition at line 129 of file ifddir.cpp.

References OpenRaw::Internals::RawContainer::readInt16(), OpenRaw::Internals::RawContainer::readInt32(), and OpenRaw::IO::Stream::seek().

numTags()

int OpenRaw::Internals::IFDDir::numTags ( )

inline

return the number of entries

Definition at line 63 of file ifddir.h.

offset()

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

inline

return the offset

Definition at line 55 of file ifddir.h.

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

• lib/ifddir.h
• lib/ifddir.cpp