#6861 closed enhancement (fixed)
geraster - Add support for on BLOB JP2-F compression
Reported by: | ilucena | Owned by: | warmerdam |
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Priority: | normal | Milestone: | |
Component: | GDAL_Raster | Version: | svn-trunk |
Severity: | normal | Keywords: | georaster |
Cc: | ilucena |
Description
This is a new option on Oracle georaster that needs to be supported by the GDAL driver.
Change History (14)
comment:1 by , 7 years ago
Resolution: | → fixed |
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Status: | new → closed |
comment:2 by , 7 years ago
That revision implements the solution by adding a VSIL driver to access the Oracle BLOB directly.
The VSIL pointer is passed to the available JP2 driver to read or write as if it was a file.
In a special case, where the georaster object is JP2-F compressed and the data is been translated to a .jp2 file, some change have been made to the openjpeg to do it faster avoiding the regular decompression/compression usual operation.
At openjpeg's CreateCopy the new code will identify that origin is GeoRaster JP2-F compressed and it will dump the file directly.
comment:4 by , 7 years ago
comment:11 by , 7 years ago
An error was introduced on that latest updates.
When a GeoRaster image is created with the default COORDLOCATION, center-pixel, the geo-reference is registered incorrectly in the metadata an reported back incorrect too with a half pixel shift.
In 38015: