Thanks for the fix Even.
> On 30 Mar 2022, at 14:21, Even Rouault wrote:
>
> 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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>
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