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Date: Sat, 16 Nov 2002 17:55:17 -0500
To: tiff@olympiakos.com
From: Chris Losinger <losinger@earthlink.net>
Subject: LibTIFF: adding to tiffFieldInfo
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<x-flowed>
	Hi,

	I'm adding EXIF support, using Coran Poelman's PDS code. this involves 
adding an entry to the tiffFieldInfo array so i can grab the SubIFD offset 
field.

	the item i'm adding looks like this:

	{ 0x8769,	1,1,	TIFF_LONG, FIELD_EXIFDATA ,	TRUE,	FALSE,	"EXIF Offset" },

	and i'm adding it between TIFFTAG_PHOTOSHOP and TIFFTAG_ICCPROFILE because 
0x8769 falls between these two tags' IDs.

	my question is, what should i use for the value of "FIELD_EXIFDATA" ?

	* should i add it after FIELD_CODEC ? (give it a value of 64)
	* should i increment FIELD_CODEC to 64 and make my tag's field ID 63?
	* should i use something huge, like 9999 ?

	-c
----
Chris Losinger
losinger@earthlink.net
smallest@smalleranimals.com          http://www.smalleranimals.com


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