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When converting to JPEG packing with the Jasper library, there is an assertionyou get the above assertion:
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% 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) |
Solution
This is a problem in the Jasper library. Try to reduced It seems to be related to the number of bits per value of the input field
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Pick a decimal precision value that will avoid the assertion and preserves the required precision
grib_set -s setDecimalPrecision=4,packingType=grid_jpeg input.grib2 output.grib2- Check the statistics before and after
grib_ls -n statistics input.grib2grib_ls -n statistics output.grib2- Compare the results
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