[Osgeo4w-trac] [osgeo4w] #792: GeoTIFF 12 bit jpeg compression not supported

[OSGeo4W]

#792: GeoTIFF 12 bit jpeg compression not supported
--------------------------------+----------------------------
Reporter:  dugalh               |       Owner:  osgeo4w-dev@…
    Type:  defect               |      Status:  new
Priority:  normal               |   Component:  Package
 Version:                       |  Resolution:
Keywords:  12 bit jpeg geotiff  |
--------------------------------+----------------------------
Comment (by jef):

 From https://gdal.org/development/building_from_source.html:
 > Starting with GDAL 3.7, if using libjpeg-turbo >= 2.2, which adds native
 support for dual 8/12-bit, using internal libjpeg-12 is no longer needed
 to get 12-bit JPEG support in the JPEG, MRF, NITF or GeoTIFF (when built
 with internal libtiff) drivers. If using external libtiff, libtiff >= 4.5
 built against libjpeg-turbo >= 2.2 is needed to get 12-bit JPEG support in
 the GeoTIFF support.

 "We" have libtiff 4.4.0 instead of current 4.5.0 and libjpeg-turbo
 2.0.7-esr and it looks like 2.2 does not exists yet - the latest tag is
 2.1.91 (main is 2.1.92)
-- 
Ticket URL: <https://trac.osgeo.org/osgeo4w/ticket/792#comment:3>
OSGeo4W <http://trac.osgeo.org/osgeo4w>
OSGeo4W is the Windows installer and package environment for the OSGeo stack.