This interface defines a source of quantized wavelet coefficients and methods to transfer them in a code-block by code-block basis. In each call to 'getNextCodeBlock()' or 'getNextInternCodeBlock()' a new code-block is returned. The code-blocks are returned in no specific order.

This class is the source of data for the entropy coder. See the 'EntropyCoder' class.

Code-block data is returned in sign-magnitude representation, instead of the normal two's complement one. Only integral types are used. The sign magnitude representation is more adequate for entropy coding. In sign magnitude representation, the most significant bit is used for the sign (0 if positive, 1 if negative) and the magnitude of the coefficient is stored in the next M most significant bits. The rest of the bits (least significant bits) can contain a fractional value of the quantized coefficient. The number 'M' of magnitude bits is communicated in the 'magbits' member variable of the 'CBlkWTData'.

Note that no more of one object may request data, otherwise one object would get some of the data and another one another part, in no defined manner.

'Declaration
 
Public Interface CBlkQuantDataSrcEnc 
   Inherits CSJ2K.j2k.image.ImgData, CSJ2K.j2k.wavelet.analysis.ForwWTDataProps 

public interface CBlkQuantDataSrcEnc : CSJ2K.j2k.image.ImgData, CSJ2K.j2k.wavelet.analysis.ForwWTDataProps