Image::ExifTool::Fixup man page on Mandriva

Image::ExifTool::Fixup man page on Mandriva

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Image::ExifTool::FixupUser Contributed Perl DocumentaImage::ExifTool::Fixup(3)

NAME
       Image::ExifTool::Fixup - Utility to handle pointer fixups

SYNOPSIS
	   use Image::ExifTool::Fixup;

	   $fixup = new Image::ExifTool::Fixup;

	   # add a new fixup to a pointer at the specified offset in data
	   $fixup->AddFixup($offset);

	   # add a new Fixup object to the tree
	   $fixup->AddFixup($subFixup);

	   $fixup->{Start} += $shift1;	 # shift pointer offsets and values

	   $fixup->{Shift} += $shift2;	 # shift pointer values only

	   # recursively apply fixups to the specified data
	   $fixup->ApplyFixups(\$data);

	   $fixup->Dump();		 # dump debugging information

DESCRIPTION
       This module contains the code to keep track of pointers in memory and
       to shift these pointers as required.  It is used by ExifTool to
       maintain the pointers in image file directories (IFD's).

NOTES
       Keeps track of pointers with different byte ordering, and relies on
       Image::ExifTool::GetByteOrder() to determine the current byte ordering
       when adding new pointers to a fixup.

       Maintains a hierarchical list of fixups so that the whole hierarchy can
       be shifted by a simple shift at the base.  Hierarchy is collapsed to a
       linear list when ApplyFixups() is called.

AUTHOR
       Copyright 2003-2010, Phil Harvey (phil at owl.phy.queensu.ca)

       This library is free software; you can redistribute it and/or modify it
       under the same terms as Perl itself.

SEE ALSO
       Image::ExifTool(3pm)

perl v5.10.1			  2010-01-04	     Image::ExifTool::Fixup(3)

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