* libopenjpeg: contains the sources of the openjpeg library
* jpwl: contains the additional sources if you want to build a JPWL-flavoured library.
* applications: contains all applications that use the openjpeg library
* common: common files to all applications
* codec: a basic codec
* mj2: motion jpeg 2000 executables
* JavaOpenJPEG: java jni to use openjpeg in a java program
* indexer_JPIP: obsolete. Will be replaced by a complete JPIP implementation soon.
* OPJViewer: gui for displaying j2k files (based on wxWidget)
* thirdparty: thirdparty libraries used by some applications. These libraries will be build only if there are not found on the system. Note that libopenjpeg itself does not have any dependency.
* doc: doxygen documentation setup file and man pages
* testing: all files required to test the library and executables (obsolete)