Frank, I have built Jasper JPEG2000. And my question was what 'J2K_SUBFILE:3935,115450995,caf_08mar12.ntf' is. My input file name was caf_08mar12.ntf. It seems wants to tell me something: why J2K_SUBFILE? And what are those two numbers (3935 and 115450995) for? Thanks.
Mo -----Original Message----- From: Frank Warmerdam [mailto:[email protected]] Sent: Tuesday, December 16, 2008 11:20 AM To: Mo Wang Cc: [email protected] Subject: Re: [gdal-dev] What is the meaning of the message from gdalinfo Mo Wang wrote: > Hi all, > > > > I ran gdalinfo (both gdal 1.5.2 and gdal 1.6.0) on a nitf image and got > the following message: > > > > gdalinfo caf_08mar12.ntf > > ERROR 4: 'J2K_SUBFILE:3935,115450995,caf_08mar12.ntf' does not exist in > the file system, and is not recognised as a supported dataset name. > > ERROR 1: Unable to open JPEG2000 image within NITF file. > > Is the JP2KAK driver available? > > gdalinfo failed - unable to open 'caf_08mar12.ntf'. > > > > What is the meaning of the message (especially ERROR 4)? Thank you in > advance for taking time to answer. Mo, ERROR 4 maps to "CPLE_OpenFailed" as defined in gdal/port/cpl_error.h. The error basically means that your NITF file contains a JPEG2000 compressed image so the NITF driver attempted to open that as a subdataset using the specal J2K_SUBFILE mechanism but this failed. Mostly likely it failed because you do not have JPEG2000 support built into your GDAL library. Best regards, -- ---------------------------------------+-------------------------------- ------ I set the clouds in motion - turn up | Frank Warmerdam, [email protected] light and sound - activate the windows | http://pobox.com/~warmerdam and watch the world go round - Rush | Geospatial Programmer for Rent _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
