| Class | Description | |
|---|---|---|
 | CBlkSizeSpec | |
| CodedCBlk | This is the generic class to store coded (compressed) code-block. It stores the compressed data as well as the necessary side-information.
This class is normally not used. Instead the EncRDCBlk, EncLyrdCBlk and the DecLyrdCBlk subclasses are used. |
| PrecinctSizeSpec | |
| Progression | This class holds one of the different progression orders defined in the bit stream. The type(s) of progression order are defined in the ProgressionType interface. A Progression object is totally defined by its component start and end, resolution level start and end and layer start and end indexes. If no progression order change is defined, there is only Progression instance. |
| ProgressionSpec | This class extends ModuleSpec class for progression type(s) and progression order changes holding purposes.
It stores the progression type(s) used in the codestream. There can be several progression type(s) if progression order changes are used (POC markers). |
