On mardi 31 octobre 2017 19:39:23 CET N. Farah wrote: > Hi, > > > In http://gdal.org/frmt_jp2openjpeg.html under 'Thread Support' section > there is the following: > > "Starting with GDAL 2.3, this multi-threading at code-block level is > automatically enabled by GDAL". > > > Was meant "Starting with OpenJpeg 2.3, ..." ?
No, was meant starting with GDAL 2.3 (the current dev version). And that requires openjpeg >= 2.2 as well. > > If yes, was that enabling made in the 'OpenJpeg 2.3' library or was made in > GDAL ? openjpeg >= 2.2 (actually 2.1.2, but I restricted to 2.2 or later) brings multithreading decoding at codeblock level, and GDAL trunk automatically enables it. So the doc is correct I think, but I know that those similar version numbers between GDAL and openjpeg can be confusing. Bottom line: use the latest and greatest of both to get the better performance. Even -- Spatialys - Geospatial professional services http://www.spatialys.com
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