[Gdal-dev] gdal install gdaladdo IReadBlock failed

Frank Warmerdam warmerdam at pobox.com
Tue Jan 23 00:02:51 EST 2007

Ryan Ollerenshaw wrote:
> But when running gdaladdo i still get the following error:
> ...
> ERROR 1: IReadBlock failed at X offset 0, Y offset 29
> ERROR 1: GetBlockRef failed at X block offset 0, Y block offset 29
> ERROR 1: test.tif:DumpModeDecode: Not enough data for scanline 0
> ERROR 1: TIFFReadEncodedTile() failed.
> ...
> any ideas on what could be going wrong.  I thought a reinstall of a 
> newer version of gdal would fix this, but that does not seem to be the 
> case.


It might well be an improperly written TIFF file that is causing the
problem.  It might be helpful to have a "tiffinfo -m 10000 " report on
the file for which this problem is reported.

Best regards,
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | President OSGeo, http://osgeo.org

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