We recently began seeing the following error (which doesn’t seem to produce
incorrect output images)
ERROR 1: _TIFFVSetField:/vsimem/gtiff/thread/job/0x1f5d0970: Bad value 4 for
"ExtraSamples" tag
when creating a geotif image from C++ with creation options:
char *disk_create_options[] = {"COMPRESS=ZSTD", "ZSTD_LEVEL=1",
"INTERLEAVE=BAND", "Tiled=YES", "NUM_THREADS=ALL_CPUS", "SPARSE_OK=True",
"PREDICTOR=3", 0};
We are not explicitly using the vsimem driver, only the driver returned by:
GDALGetDriverByName("GTiff")
Notably, the “ALPHA” creation option is absent, and per the documentation that
is the only relevant option. The error is emitted on gdal 3.8.4, but we have
another environment with 3.4.3 and there’s no error. On the 3.8.4 environment,
we’re using internal libtiff w/ JXL support, if helpful.
Best,
Jesse
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