[gdal-dev] gdalwarp - Invalid Tiled GTiff

[Aaron Sutula]

Hi Frank,

I built the svn development version of gdal with all internal libraries 
and that did the trick; 1.5.2 still had the bug. Thanks for the help.

Aaron

Frank Warmerdam wrote:
> Aaron Sutula wrote:
>> Hi List,
>>
>> I am attempting to create a mosaic of elevation data I have stored as 
>> a bunch of geotiff files. I am trying this with gdalwarp from FWtools 
>> 2.0.6 (so there is bigtiff support). My approach is to gdalwarp one 
>> of the source geotiffs into an output geotiff  and specify that the 
>> output geotiff has a larger extent, my final extent for the mosaic. 
>> After that, I can gdalwarp the remaining source geotiffs into the 
>> first output geotiff.
> ...
>> $ du merge18.tif
>> 2111768    merge18.tif
>>
>> $ gdalinfo merge18.tif
>> ERROR 4: `merge18.tif' not recognised as a supported file format.
>> gdalinfo failed - unable to open 'merge18.tif'.
>
> Aaron,
>
> I think you are hitting the 2GB barrier.  A while ago we discovered the
> logic for switching to the "large file api" which is necessary past 2GB
> was not working properly in some unix and linux builds due to an 
> unexpected
> error code being returned from fopen().  This is exactly how it 
> manifests.
>
> Unfortunately there isn't a newer FWTools with the fix though the problem
> is fixed.  If you can build from source yourself you should be ok.  Or
> if you can keep the size a bit below 2GB you should be ok.
>
> Best regards,