Bug report #10175
OSGeo4w 2.2 build missing ECW support
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: |  Jürgen Fischer | ||
| Category: | - | ||
| Affected QGIS version: | 2.2.0 | Regression?: | No |
| Operating System: | Windows | Easy fix?: | No |
| Pull Request or Patch supplied: | No | Resolution: | up/downstream |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 18629 |
Description
Seems the ECW support no longer works in the 2.2 build of OSGeo4W (32) bit. Might be related to the 1.11 GDAL update as 2.2 is still on 1.10. Not sure but just guessing as ECWs work in qgis-dev.
History
#1
Updated by Jürgen Fischer about 10 years ago
- Status changed from Open to Closed
- Resolution set to up/downstream
QGIS 2.2 is built against GDAL 1.10.
#2
Updated by Nathan Woodrow about 10 years ago
And we can't have both gdal plugin versions installed? Is that correct?
#3
Updated by Jürgen Fischer about 10 years ago
#4
Updated by Miroslav Umlauf about 10 years ago
Does this link from QGIS FAQ helps as workaround before the whole problem will be solved? http://www.faunalia.com/content/adding-ecw-support-quantum-gis
#5
Updated by Giovanni Manghi about 10 years ago
Miroslav Umlauf wrote:
Does this link from QGIS FAQ helps as workaround before the whole problem will be solved? http://www.faunalia.com/content/adding-ecw-support-quantum-gis
it should work, but use this
#6
Updated by Miroslav Umlauf about 10 years ago
Thank you. I have installed that msi but there is only gdal_ECW_JP2ECW.dll (no libecwj2.dll). Also gdal_ECW_JP2ECW.dll is already in folder C:\\OSGeo4W64\\bin\\gdalplugins.
Update: On Win 8/32 and OSGeo4W, QGIS 2.2 it works. After installing http://www.gisinternals.com/sdk/Download.aspx?file=release-1600-gdal-1-10-1-mapserver-6-4-1\\gdal-110-1600-ecw.msi I took the C:\\Program Files\\GDAL\\NCSEcw.dll and C:\\Program Files\\GDAL\\gdalplugins\\gdal_ECW_JP2ECW.dll and overwritten existing dlls in C:\\OSGeo4W\\bin\\NCSEcw.dll and C:\\OSGeo4W\\bin\\gdalplugins\\gdal_ECW_JP2ECW.dll.
After some more testing only the C:\\OSGeo4W\\bin\\gdalplugins\\gdal_ECW_JP2ECW.dll is needed to replace on Win 8/32.
On Win 7 64 it is needed to download http://www.gisinternals.com/sdk/Download.aspx?file=release-1600-x64-gdal-1-10-1-mapserver-6-4-1\\gdal-110-1600-x64-ecw.msi and copy the C:\\Program Files\\GDAL\\gdalplugins\\gdal_ECW_JP2ECW.dll to C:\\OSGeo4W64\\bin\\gdalplugins\\gdal_ECW_JP2ECW.dll
#7
Updated by Jürgen Fischer about 10 years ago
This is not a qgis problem - hence I closed the ticket. QGIS 2.2 in OSGeo4W is built against GDAL 1.10. OSGeo4W moved on to GDAL 1.11. There is a compatibility package that provides GDAL 1.10 that QGIS 2.2 uses, but that doesn't extent to the plugins. qgis-dev (the master build) is built against GDAL 1.11.
If you need QGIS with GDAL plugins, you can still use the standalone installer for 2.2 (it has GDAL 1.10) or qgis-dev. Downgrading GDAL and it's plugins to 1.10 in OSGeo4W is also an option - but that will likely break qgis-dev.
#8
Updated by Andre Joost about 10 years ago
I wrote a workaround here:
Downgrading the ecw driver in OSGEO4W still works.
QGIS 2.4 should solve the problem anyway.