[Libjpeg-devel-6x] Compressing 12bit JPEG with high quality triggers Bogus Huffman table definition

[Frank W. <war...@po...>]

Folks,

I thought I had pretty much slain the 12bit jpeg dragon until my client
actually tried compressing with high quality values.  At this point I
start getting "Bogus Huffman table definition" which appears to reflect
some sort of table size overflow.

I am wondering if anyone else is using libjpeg to compress 12bit jpeg
data and could suggest ways of resolving this problem?

The file in question is:

   http://download.osgeo.org/gdal/data/pnm/mandril_12bit.pnm

Try compressing it like:

   cjpeg -quality 90 -outfile out.jpg mandril_12bit.pnm

after building libjpeg and cjpeg in 12bit mode of course.  If appropriate
I can seek client funding for meaningful assistance.

Best regards,
-- 
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up   | Frank Warmerdam, war...@po...
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent