[gdal-dev] JP2 files created with JP2OpenJPEG can only have 1 or 3 bands?

[Paul Hasenohr]

Hello,

I just compiled gdal-1.11.1 with support for jpeg2000 through OpenJPEG 
and wanted to convert a 4 bands TIFF file (with LZW compression) into a 
lossless JP2 file.
While attempting to run gdal_translate, I received this error message 
ERROR 6: Unable to export files with 4 bands

Looking at the file openjpegdataset.cpp [1], it seems that CreateCopy() 
only supports 1 band and 3 bands files. The option for 4 bands is even 
commented out. What is the reason for this?
Would it be possible to support the creation of JPEG2000 of any number 
of bands?
Can I safely enable the creation of 4 bands files?

I want to create GMLJP2 files as it is one option suggested by the 
INSPIRE technical guidelines on orthoimagery and I would like to use 
GDAL for this.

Thank you for your support.

Best regards,
Paul Hasenohr

[1] https://svn.osgeo.org/gdal/trunk/gdal/frmts/openjpeg/openjpegdataset.cpp