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How to create an ECW plugin in GDAL?
ECW_PLUGIN = YES Then do the following in gdal/frmts/ecw (after the GDAL build) to create the plugins:
Which is the latest version of GDAL for QGIS 64bit?
Note: The QGIS 64bit installer used GDAL 1.10 which has the ECW plugin included. The 32bit installer is getting updated to GDAL 1.10 with the plugin at some stage, no ETA at the moment. The following method is only needed for the 32bit installer until it updated with the new GDAL.
How to build ECW drivers as a plugin?
In order to build the ECW and JP2ECW drivers as plugins uncomment the plugin line in the nmake.opt: # To build ECW support as a plugin uncomment the following, and make sure # to do “nmake /f makefile.vc plugin” in gdal/frmts/ecw and copy the two # resulting DLLs to an appropriate place. ECW_PLUGIN = YES
Can you write ECW files to JPEG2000?
In order to write ECW or JPEG2000 files via the ECW SDK it is necessary to purchase a write enabled version of the SDK from Hexagon Geospatial/ERDAS. If the out of date libecwj 3.3 SDK can be found (e.g. https://sourceforge.net/projects/libecw-legacy/ or https://github.com/bogind/libecwj2-3.3 ), it can also be used.
Is the GCC SDK compatible with the ECW SDK?
Since GCC 5.1, GCC uses by default a new C++ ABI for libstdc++, which is incompatible of the ECW SDK binaries prior to version 5.4. The workaround is to build GDAL with CXXFLAGS=”-D_GLIBCXX_USE_CXX11_ABI=0″ ./configure [options]
Which is the best SDK for ECW 5.4?
Use ECW SDK 5.4 if possible, together with GDAL >= r41789 (GDAL 2.3.0dev and GDAL 2.2.4), since this SDK is the first one to ship with a library with the new C++ ABI, which solves the below issues. Since GCC 5.1, GCC uses by default a new C++ ABI for libstdc++, which is incompatible of the ECW SDK binaries prior to version 5.4.
Where can I download a GDAL binary for Windows?
Head over to Tamas Szekeres’ Windows binaries and download the appropriate GDAL Binary. For this tutorial, we are using the MSC v.1500 on a 32-bit system, the picture below illustrates how to match the version with your own python version.