When converting to JPEG packing with the JasPer library, you get the above assertion:
% grib_set -s packingType=grid_jpeg input.grib2 output.grib2 grib_set: jpc_enc.c:186: jpc_abstorelstepsize: Assertion `!((expn) & (~0x1f))' failed. Aborted (core dumped) |
This problem can also occur if you have an existing JPEG packed field and you wish to encode it with different values e.g. scaling all values up
% grib_set -s scaleValuesBy=150 input.grib2 output.grib2 |
This is a problem in the Jasper library. It seems to be related to the number of bits per value of the input field.
Pick a decimal precision value that will avoid the assertion and preserves the required precision
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