2006.08.11 16:12 "RE: [Tiff] Newbie RICHTIFFIPTC query", by Bob Friesenhahn
There is something wrong with my assignment I think
I currently have this:
uint32 count;
char *data;
snip
if (TIFFGetField(tif, TIFFTAG_RICHTIFFIPTC, &count, &data) == 0) {
printf("Size of IPTC Tag is %d bytes.\n", &count);
Which yelds this:
>> Size of IPTC Tag is -18344092 bytes.
You should be using %u rather than %d to print an unsigned value. Regardless, some recent libtiff releases have had severe problems in this area. Some releases have treated the 'count' argument as a 16-bit type while others have treated it as 32 bit. The most recent release also has a nasty bug in its tag code which shows up on big-endian CPUs.
As far as I am aware, the current libtiff CVS code retrieves these tags correctly.
Bob
======================================
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/