2017.04.28 20:38 "[Tiff] Interesting change/problem in LibTiff 4.0.7
with unsupported compressions", by
Thread
2017.04.28 20:38 "[Tiff] Interesting change/problem in LibTiff 4.0.7 with unsupported compressions", by
I found a decent change in the behavior of Libtiff - after I updated from
the 3.5.6/3.5.7 era to the most recent (yes 15 year jump!!)
Specifically this piece of code - basically ends up tripping an error if the
compression is not compiled/activated in the code. So you can't even
peruse/move through a file without tripping an error.
/*
* An opportunity for compression mode dependent tag fixup
*/
(*tif->tif_fixuptags)(tif);
Our engine specifically watches for errors and assumes it's pretty fatal -
when really it's kinda benign - UNLESS I want to extract the image data
itself, right??
Surely that should be pretty benign to just enumerate through a TIFF - even
if you don't support the compression of each page??
Mike