Constructs an empty 'CompTransfSpec' with specified number of
tile and components. This constructor is called by the
decoder. Note: The number of component is here for symmetry
purpose. It is useless since only tile specifications are
nt - Number of tiles
nc - Number of components
type - the type of the specification module i.e. tile specific,
component specific or both.
public boolean isCompTransfUsed()
Check if component transformation is used in any of the tiles. This
method must not be used by the encoder.
True if a component transformation is used in at least on