On 12/01/2026 15:17, Even Rouault wrote:
Certain creation options, like LOSSLESS=YES in the last example, may
need to be passed on from the ENCODE_RGB driver to the actual output
driver. Is that possible in general, or would it have to be handled
as special cases for different formats?
You could require that such driver specific options are prefixed with
something like DRV_OPT_ and then strip that prefix when sending them
to the underlying driver
That's probably the way to go. The last example would then be:
gdal raster tile --min-zoom 5 --max-zoom 15 --format ENCODE_RGB --co
DRIVER=WEBP --co DRV_OPT_LOSSLESS=YES --co BANDS=RGB --co OFFSET=-10000
--co SCALE=0.1 dem.tif rgb-tiles/
I can start looking at implementing such a driver. I assume this would
warrant an RFC?
- Lars
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