[Gdal-dev] gdaladdo problems on an Mac OS X Panther

[William Kyngesburye]

Poking around some more today.

- Wrong "StripByteCounts" - looks like that comes from a new  
validation check in libtiff 3.8.0 (you should not get this warning in  
3.7.4).  So, that spot tif may really be corrupt.  The SPOT tif you  
made available, was that converted with the previous version of GIS  
Libs when it seemed to work?

I converted the HDF with the new versions (libtiff 3.8.1/GDAL 1.3.1)  
and gdaladdo did not give these warnings.  In fact, I didn't get any  
block errors either.  At least, up to level 32 overview.  As soon as  
I add level 64, I get StripByteCounts warnings AND block errors, and  
it's right away, BTW, not when it gets to the point of doing lvl 64.

When I add the average resampling, the StripByteCounts warnings  
always come up and the block errors start at lvl 8.  But the block  
errors only display when it gets to processing that level.  Just like  
my previous tests with the old SPOT tiff.


Still clueless why the LZW compression is causing bus errors and seg  
faults in some cases.


Any ideas yet, Frank?

-----
William Kyngesburye <kyngchaos at kyngchaos.com>
http://www.kyngchaos.com/

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