jj2000.j2k.entropy.decoder
Class DecLyrdCBlk

java.lang.Object
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  +--jj2000.j2k.entropy.CodedCBlk
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        +--jj2000.j2k.entropy.decoder.DecLyrdCBlk

public class DecLyrdCBlk

extends CodedCBlk

This class stores coded (compressed) code-blocks that are organized in layers. This object can contain either all code-block data (i.e. all layers), or a subset of all the layers that make up the whole compressed code-block. It is applicable to the decoder engine only. Some data of the coded-block is stored in the super class, see CodedCBlk.

A code-block may have its progressive attribute set (i.e. the 'prog' flag is true). If a code-block is progressive then it means that more data for it may be obtained for an improved quality. If the progressive flag is false then no more data is available from the source for this code-block.

See Also:

CodedCBlk

Field Summary

int	dl The coded (compressed) data length.
int	ftpIdx The index of the first truncation point returned
int	h The height of the code-block
int	nl The number of layers in the coded data.
int	nTrunc The total number of truncation points from layer 1 to the last one in this object.
boolean	prog The progressive flag, false by default (see above).
int[]	tsLengths The length of each terminated segment.
int	ulx The horizontal coordinate of the upper-left corner of the code-block
int	uly The vertical coordinate of the upper left corner of the code-block
int	w The width of the code-block

Fields inherited from class jj2000.j2k.entropy.CodedCBlk

data, m, n, skipMSBP

Constructor Summary

DecLyrdCBlk()

Method Summary

java.lang.String

toString() Object information in a string

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

ulx

public int ulx

The horizontal coordinate of the upper-left corner of the code-block

uly

public int uly

The vertical coordinate of the upper left corner of the code-block

w

public int w

The width of the code-block

h

public int h

The height of the code-block

dl

public int dl

The coded (compressed) data length. The data is stored in the 'data' array (see super class).

prog

public boolean prog

The progressive flag, false by default (see above).

nl

public int nl

The number of layers in the coded data.

ftpIdx

public int ftpIdx

The index of the first truncation point returned

nTrunc

public int nTrunc

The total number of truncation points from layer 1 to the last one in this object. The number of truncation points in 'data' is 'nTrunc-ftpIdx'.

tsLengths

public int[] tsLengths

The length of each terminated segment. If null then there is only one terminated segment, and its length is 'dl'. The number of terminated segments is to be deduced from 'ftpIdx', 'nTrunc' and the coding options. This array contains all terminated segments from the 'ftpIdx' truncation point, upto, and including, the 'nTrunc-1' truncation point. Any data after 'nTrunc-1' is not included in any length.

Constructor Detail

DecLyrdCBlk

public DecLyrdCBlk()

Method Detail

toString

public java.lang.String toString()

Object information in a string

Overrides:

toString in class CodedCBlk

Returns:

Information in a string