Pete,
ouch, confirmed, and fix queued in
https://github.com/OSGeo/gdal/pull/5547 . And the commit you mention was
indeed the culprit.
Potential workarounds (besides generating the VRT on GDAL <= 3.4.0)
- if using gdalbuildvrt on a single source, you could just use
"gdal_translate sen2_20210527_aber_subset.kea test.vrt -b 2", that will
do the job equally well
- if using multiple sources, you could also use gdal_translate with band
selection on the VRT generated by gdalbuildvrt (without band selection)
to extract only the band(s) you're interested in, but obviously that
creates one more file
(do not hesitate to file an issue in github for obvious regressions like
that. emails tend to be easily forgotten)
Even
Le 30/03/2022 à 12:59, Pete Bunting via gdal-dev a écrit :
Hi,
With the release of gdal 3.4.2, gdalbuildvrt seems to have a bug when selecting
image bands. It works OK when band 1 is specified but if other band(s) in the image
are used without band 1 then it seg faults. I noticed there were some changes around
checking bands in the release notes "change logic to check homogenous number of
bands” and I had a quick look at the commits but cannot see where this is occurring.
# Works:
gdalbuildvrt test.vrt sen2_20210527_aber_subset.kea -b 1
# Seg Faults:
gdalbuildvrt test.vrt sen2_20210527_aber_subset.kea -b 2
ERROR 5: sen2_20210527_aber_subset.kea: GDALDataset::GetRasterBand(2) - Illegal
band #
Segmentation fault (core dumped)
# Works:
gdalbuildvrt test.vrt sen2_20210527_aber_subset.kea -b 1 -b 2 -b 3
# Seg Faults:
gdalbuildvrt test.vrt sen2_20210527_aber_subset.kea -b 2 -b 3 -b 4
ERROR 5: sen2_20210527_aber_subset.kea: GDALDataset::GetRasterBand(4) - Illegal
band #
Segmentation fault (core dumped)
Note, the input image I was using has 10 bands and these commands work with 3.4.1. I get
the same seg fault on Mac, Linux and Windows ("Windows fatal exception: access
violation").
Many thanks,
Pete
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