CADI.Common.LogicalTarget.JPEG2000.Codestream
Class PacketHeaderDataDecoder

java.lang.Object
  CADI.Common.LogicalTarget.JPEG2000.Codestream.PacketHeaderDataDecoder

public class PacketHeaderDataDecoder
extends java.lang.Object

This class records the necessary information to decode packet headers belonging to a precinct.

Version:

1.0.1 2008/11/07

Author:

Group on Interactive Coding of Images (GICI)

Field Summary

int[][][]	firstLayer First layer in which the block is included.
int	layerToDecode Is an state attribute which indicates the layer to be decoded.
int[][][]	lBlock Code-block state variable.
TagTreeDecoder[]	TTInclusionInformation Tag Tree where is the first layer which a packet is included
TagTreeDecoder[]	TTZeroBitPlanes Tag Tree with the number of missing most significant bit planes for each codeblock
int[][][]	zeroBitPlanes Is the number of most significant bit planes which are missing.

Constructor Summary

PacketHeaderDataDecoder(int[][][] subbandStructure)
Constructor.

Method Summary

void	list(java.io.PrintStream out) Prints this Packet Header Data Decoder out to the specified output stream.
void	reset() Sets the attributes to its initial values.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

TTInclusionInformation

public TagTreeDecoder[] TTInclusionInformation

Tag Tree where is the first layer which a packet is included

TTZeroBitPlanes

public TagTreeDecoder[] TTZeroBitPlanes

Tag Tree with the number of missing most significant bit planes for each codeblock

lBlock

public int[][][] lBlock

Code-block state variable.

Value 0 means that the packet has not been incluyed in any layer.

Indexes mean: 1st subband 2nd yBlock 3rd xBlock

firstLayer

public int[][][] firstLayer

First layer in which the block is included. Indices means:
subband: 0 - HL, 1 - LH, 2 - HH (ifresolutionLevel == 0 --> 0 - LL)
yBlock: block row in the subband
xBlock: block column in the subband

Only positive values allowed (0 value is possible too. If 0 --> block is included in first quality layer).

zeroBitPlanes

public int[][][] zeroBitPlanes

Is the number of most significant bit planes which are missing. Indices means:
subband: 0 - HL, 1 - LH, 2 - HH (ifresolutionLevel == 0 --> 0 - LL)
yBlock: block row in the subband
xBlock: block column in the subband

Only positive values allowed (0 value is possible too.

layerToDecode

public int layerToDecode

Is an state attribute which indicates the layer to be decoded.

Constructor Detail

PacketHeaderDataDecoder

public PacketHeaderDataDecoder(int[][][] subbandStructure)

Constructor.

Parameters:

subbandStructure - contains the structure of the subband. Its indexes mean [subband][yBlock][xBlock]

Method Detail

reset

public void reset()

Sets the attributes to its initial values.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

list

public void list(java.io.PrintStream out)

Prints this Packet Header Data Decoder out to the specified output stream. This method is useful for debugging.

Parameters:

out - an output stream.