Le jeudi 29 décembre 2011 20:15:32, Ivan Lucena a écrit : > Hi there, > > I am getting a lot of messages like that when using deflate compression > (zlib): > > $ gdal_translate input.tif output.tif -co compress=deflate > Input file size is 800, 600 > 0...10...20...30...40...50...60...70...80...90...100 - done. > > bit length overflow > code 4 bits 5->6 > > bit length overflow > code 16 bits 6->7 > > bit length overflow > code 11 bits 6->7 > > bit length overflow > code 5 bits 6->7 > code 11 bits 6->7 > > bit length overflow > code 3 bits 6->7 > > bit length overflow > code 5 bits 5->6 > > bit length overflow > code 5 bits 6->7 > code 12 bits 6->7 > > bit length overflow > code 11 bits 6->7 > > bit length overflow > code 12 bits 6->7 > > bit length overflow > code 16 bits 6->7 > > The input and output image has the same checksum at the end, so what is > going on?
Ivan, I suppose you are using GDAL internal zlib. This error message comes from frmts/zlib/trees.c, and it appears it is only a debug message that is output if DEBUG is #define 'd (see zutil.h). On a non-debug build, the message shouldn't appear. > > The image is RGB, GDAL is compiled for 32bits running in a win64 machine. > > Regards, > > Ivan > > > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/gdal-dev _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
