[Qgis-developer] Re: [Qgis-user] Building image pyramids -> qgis crashing

Oleg Gusev oleg at crista.uni-wuppertal.de
Sun Apr 13 15:12:58 EDT 2008

Am Sonntag 13 April 2008 20:53:11 schrieb Maciej Sieczka:
> Here Frank talks about gdalwarp and "-co COMPRESS" interaction issues,
> leading to compression under-performance. How does it relate to QGIS
> crashing when GDAL function for creating overviews is called, as
> described in Trac [1]?
"under-performance" is a real under-statement here. gdalwarp (and 
gdaladdo) often segfault when used with "-co COMPRESS" option.
Both programs use libtiff to write compressed data into an existing
tiff file, so they fail at the same place.


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