We have three jpeg2k implementations (jasper, openjpeg, luratech) and soon a 4th with Intel performance primitives; and two jbig2 implementations with jbig2dec vs luratech. Would be nice to switch between them with say ./configure --with-luratech=<>, etc.
http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=cacd7d