[gdal-dev] Fwd: Problem with 4 bands Jpeg2000 files using GDAL + Erdas ECW4.3 Read-only

[Even Rouault]

Le mercredi 09 octobre 2013 16:17:11, victor fomin a écrit :
> Hello Even,
> 
> thank you for the reply. I attached a minimal test that compares as you
> suggested to buffers.
> When I use CPLSetConfigOption("ECW_CLEVER", "NO"); two buffers are equal.
> When
> CPLSetConfigOption("ECW_CLEVER", "YES"); two buffers are different. A 4
> bands image can be donwloaded from this link :
> http://www.astrium-geo.com/en/23-sample-imagery
> 
> I do not know if it is an issue in GDAL, however there is something strange
> with the usage of sCachedMultiBandIO from ECWDataset.

Problem confirmed and now fixed : see http://trac.osgeo.org/gdal/ticket/5262

In the meantime, ECW_CLEVER=NO can be used as a workaround.

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