CADI.Common.LogicalTarget.JPEG2000.Codestream
Class JPKMainHeaderDecoder

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

public class JPKMainHeaderDecoder
extends java.lang.Object

This class reads a JPK heading from a file. Then, get functions can be used to retrieve read values. This class receives an input stream and advance read up to heading end. Usage example:
construct
run
get functions

Version:

1.0.2 2008/11/08

Author:

Group on Interactive Coding of Images (GICI)

Field Summary

private int[]	BDBlockHeights Definition in CODParameters.blockHeights
private int	BDBlockHeights_BITS
private int[]	BDBlockWidths Definition in CODParameters.blockWidths
private int	BDBlockWidths_BITS
private int[][]	BDResolutionPrecinctHeights Definition in CODParameters.precinctHeights
private int	BDResolutionPrecinctHeights_BITS
private int[][]	BDResolutionPrecinctWidths Definition in CODParameters.precinctWidths
private int	BDResolutionPrecinctWidths_BITS
private int	BitStreamType Bitstream type.
private int	BitStreamType_BITS
private int[]	CTComponents Definition in CADI.Common.LogicalTarget.JPEG2000.Parameters.CODParameters#CTComponents
private int	CTComponents_BITS
private int	CTType Definition in CADI.Common.LogicalTarget.JPEG2000.Parameters.CODParameters#CTType
private int	CTType_BITS
private int[]	DBitPlaneEncodingSA Definition in JPKParameters.bitPlaneEncodingSA
private int	DBitPlaneEncodingSA_BITS
private int	DPCMRestartIndex Definition in JPKParameters.DPCMRestartIndex
private int	DPCMRestartIndex_BITS
private int[]	DWaveletSA Definition in JPKParameters.waveletSA
private int	DWaveletSA_BITS
private boolean[]	FWPacketHeaders Definition in CODParameters.useSOP and CODParameters.useEPH.
private int	FWProgressionOrder Definition in CODParameters.progressionOrder
private int	FWProgressionOrder_BITS
private BufferedDataInputStream	in Definition in JPEG2KLogicalTarget.in
private JPCParameters	jpcParameters Is an object where the main header are saved.
private BitStream	JPKHeading Temporal bitstream where the values are saved from the file.
private int	LCAchievedNumLayers Definition in CODParameters.numLayers
private int	LCAchievedNumLayers_BITS
private boolean[]	LSComponents Definition in JPKParameters.LSComponents
private boolean[]	LSSignedComponents Definition in SIZParameters.signed
private int[]	LSSubsValues Definition in JPKParameters.LSSubsValues
private int	LSSubsValues_BITS
private int	LSType Definition in JPKParameters.LSType
private int	LSType_BITS
private long	mainHeaderInitialPos Is the file pointer to the first byte of the main header.
private int	mainHeaderLength Is the length of the main header.
private int[]	QComponentsBits Definition in SIZParameters.precision
private int	QComponentsBits_BITS
private int	QDynamicRange Definition in JPKParameters.QDynamicRange
private int	QDynamicRange_BITS
private int[][][]	QExponents Definition in QCDParameters.QExponents
private int	QExponents_BITS
private int	QGuardBits Definition in QCDParameters.QGuardBits
private int	QGuardBits_BITS
private int[][][]	QMantisas Definition in QCDParameters.QMantisas
private int	QMantisas_BITS
private int[]	QTypes Definition in QCDParameters.QTypes
private int	QTypes_BITS
private int[]	RBitplanesScaling Definition in JPKParameters.RBitplanesScaling
private int	RBitplanesScaling_BITS
private float[]	RMMultValues Definition in JPKParameters.RMMultValues
private int[]	RroisParameters Definition in JPKParameters.RroisParameters
private int	RroisParameters_BITS
private int	RroiType Definition in JPKParameters.RroiType
private int	RroiType_BITS
private int	WSL Definition in JPKParameters.WSL
private int	WSL_BITS
private int	WST Definition in JPKParameters.WST
private int	WST_BITS
private int	WT3D Definition in JPKParameters.WT3D
private int	WT3D_BITS
private int[]	WTLevels Definition in CODParameters.WTLevels
private int	WTLevels_BITS
private int[]	WTTypes Definition in CODParameters.WTTypes
private int	WTTypes_BITS
private int	xSize Definition in SIZParameters.xSize
private int	xSize_BITS
private int	ySize Definition in SIZParameters.ySize
private int	ySize_BITS
private int	zSize Definition in SIZParameters.zSize
private int	zSize_BITS

Constructor Summary

JPKMainHeaderDecoder(BufferedDataInputStream in)
Constructor of JPKDeheading.

Method Summary

JPCParameters	getJPCParameters() Returns the jpcParameters attribute.
long	getMainHeaderInitialPos() Returns the mainHeaderInitialPos attribute.
int	getMainHeaderLength() Returns the mainHeaderLength attribute.
private boolean	readBoolean() Reads a boolean from the file and returns its value.
private int	readByte() Reads a byte from the file and returns its value.
private float	readFloat() Reads a float from the file and returns its value.
private int	readInteger(int numBits) Reads an integer from the file and returns its value.
void	run() Reads the JPK heading.

Methods inherited from class java.lang.Object

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

Field Detail

jpcParameters

private JPCParameters jpcParameters

Is an object where the main header are saved.

mainHeaderInitialPos

private long mainHeaderInitialPos

Is the file pointer to the first byte of the main header.

mainHeaderLength

private int mainHeaderLength

Is the length of the main header.

zSize

private int zSize

Definition in SIZParameters.zSize

zSize_BITS

private final int zSize_BITS

See Also:

Constant Field Values

ySize

private int ySize

Definition in SIZParameters.ySize

ySize_BITS

private final int ySize_BITS

See Also:

Constant Field Values

xSize

private int xSize

Definition in SIZParameters.xSize

xSize_BITS

private final int xSize_BITS

See Also:

Constant Field Values

LSType

private int LSType

Definition in JPKParameters.LSType

LSType_BITS

private final int LSType_BITS

See Also:

Constant Field Values

LSComponents

private boolean[] LSComponents

Definition in JPKParameters.LSComponents

LSSubsValues

private int[] LSSubsValues

Definition in JPKParameters.LSSubsValues

LSSubsValues_BITS

private final int LSSubsValues_BITS

See Also:

Constant Field Values

LSSignedComponents

private boolean[] LSSignedComponents

Definition in SIZParameters.signed

RMMultValues

private float[] RMMultValues

Definition in JPKParameters.RMMultValues

CTType

private int CTType

Definition in CADI.Common.LogicalTarget.JPEG2000.Parameters.CODParameters#CTType

CTType_BITS

private final int CTType_BITS

See Also:

Constant Field Values

CTComponents

private int[] CTComponents

Definition in CADI.Common.LogicalTarget.JPEG2000.Parameters.CODParameters#CTComponents

CTComponents_BITS

private final int CTComponents_BITS

See Also:

Constant Field Values

WTTypes

private int[] WTTypes

Definition in CODParameters.WTTypes

WTTypes_BITS

private final int WTTypes_BITS

See Also:

Constant Field Values

WTLevels

private int[] WTLevels

Definition in CODParameters.WTLevels

WTLevels_BITS

private final int WTLevels_BITS

See Also:

Constant Field Values

WT3D

private int WT3D

Definition in JPKParameters.WT3D

WT3D_BITS

private final int WT3D_BITS

See Also:

Constant Field Values

WSL

private int WSL

Definition in JPKParameters.WSL

WSL_BITS

private final int WSL_BITS

See Also:

Constant Field Values

WST

private int WST

Definition in JPKParameters.WST

WST_BITS

private final int WST_BITS

See Also:

Constant Field Values

QTypes

private int[] QTypes

Definition in QCDParameters.QTypes

QTypes_BITS

private final int QTypes_BITS

See Also:

Constant Field Values

QDynamicRange

private int QDynamicRange

Definition in JPKParameters.QDynamicRange

QDynamicRange_BITS

private final int QDynamicRange_BITS

See Also:

Constant Field Values

QComponentsBits

private int[] QComponentsBits

Definition in SIZParameters.precision

QComponentsBits_BITS

private final int QComponentsBits_BITS

See Also:

Constant Field Values

QExponents

private int[][][] QExponents

Definition in QCDParameters.QExponents

QExponents_BITS

private final int QExponents_BITS

See Also:

Constant Field Values

QMantisas

private int[][][] QMantisas

Definition in QCDParameters.QMantisas

QMantisas_BITS

private final int QMantisas_BITS

See Also:

Constant Field Values

QGuardBits

private int QGuardBits

Definition in QCDParameters.QGuardBits

QGuardBits_BITS

private final int QGuardBits_BITS

See Also:

Constant Field Values

BDBlockWidths

private int[] BDBlockWidths

Definition in CODParameters.blockWidths

BDBlockWidths_BITS

private final int BDBlockWidths_BITS

See Also:

Constant Field Values

BDBlockHeights

private int[] BDBlockHeights

Definition in CODParameters.blockHeights

BDBlockHeights_BITS

private final int BDBlockHeights_BITS

See Also:

Constant Field Values

BDResolutionPrecinctWidths

private int[][] BDResolutionPrecinctWidths

Definition in CODParameters.precinctWidths

BDResolutionPrecinctWidths_BITS

private final int BDResolutionPrecinctWidths_BITS

See Also:

Constant Field Values

BDResolutionPrecinctHeights

private int[][] BDResolutionPrecinctHeights

Definition in CODParameters.precinctHeights

BDResolutionPrecinctHeights_BITS

private final int BDResolutionPrecinctHeights_BITS

See Also:

Constant Field Values

LCAchievedNumLayers

private int LCAchievedNumLayers

Definition in CODParameters.numLayers

LCAchievedNumLayers_BITS

private final int LCAchievedNumLayers_BITS

See Also:

Constant Field Values

BitStreamType

private int BitStreamType

Bitstream type.

Bitstreams can be:

• 0- J2B JPEG2000 bitstream (without MQ coding)
• 1- J2C JPEG2000 codestream (with MQ coding)

BitStreamType_BITS

private final int BitStreamType_BITS

See Also:

Constant Field Values

FWProgressionOrder

private int FWProgressionOrder

Definition in CODParameters.progressionOrder

FWProgressionOrder_BITS

private final int FWProgressionOrder_BITS

See Also:

Constant Field Values

FWPacketHeaders

private boolean[] FWPacketHeaders

Definition in CODParameters.useSOP and CODParameters.useEPH.

DWaveletSA

private int[] DWaveletSA

Definition in JPKParameters.waveletSA

DWaveletSA_BITS

private final int DWaveletSA_BITS

See Also:

Constant Field Values

DBitPlaneEncodingSA

private int[] DBitPlaneEncodingSA

Definition in JPKParameters.bitPlaneEncodingSA

DBitPlaneEncodingSA_BITS

private final int DBitPlaneEncodingSA_BITS

See Also:

Constant Field Values

RroiType

private int RroiType

Definition in JPKParameters.RroiType

RroiType_BITS

private final int RroiType_BITS

See Also:

Constant Field Values

RroisParameters

private int[] RroisParameters

Definition in JPKParameters.RroisParameters

RroisParameters_BITS

private final int RroisParameters_BITS

See Also:

Constant Field Values

RBitplanesScaling

private int[] RBitplanesScaling

Definition in JPKParameters.RBitplanesScaling

RBitplanesScaling_BITS

private final int RBitplanesScaling_BITS

See Also:

Constant Field Values

DPCMRestartIndex

private int DPCMRestartIndex

Definition in JPKParameters.DPCMRestartIndex

DPCMRestartIndex_BITS

private final int DPCMRestartIndex_BITS

See Also:

Constant Field Values

in

private BufferedDataInputStream in

Definition in JPEG2KLogicalTarget.in

JPKHeading

private BitStream JPKHeading

Temporal bitstream where the values are saved from the file.

Content is a buffer of bits.

Constructor Detail

JPKMainHeaderDecoder

public JPKMainHeaderDecoder(BufferedDataInputStream in)

Constructor of JPKDeheading. It receives the information about the compressed image needed to be put in JPKHeading.

Parameters:

in - definition in in

Method Detail

run

public void run()
         throws ErrorException

Reads the JPK heading.

Throws:

ErrorException - when some I/O error occurs

getJPCParameters

public JPCParameters getJPCParameters()

Returns the jpcParameters attribute.

Returns:

the jpcParameters attribute

getMainHeaderInitialPos

public long getMainHeaderInitialPos()

Returns the mainHeaderInitialPos attribute.

Returns:

the mainHeaderInitialPos attribute.

getMainHeaderLength

public int getMainHeaderLength()

Returns the mainHeaderLength attribute.

Returns:

the mainHeaderLength attribute.

readBoolean

private boolean readBoolean()
                     throws ErrorException

Reads a boolean from the file and returns its value.

Returns:

the boolean read

Throws:

ErrorException - when some wrong bitstream or I/O operation occurs

readInteger

private int readInteger(int numBits)
                 throws ErrorException

Reads an integer from the file and returns its value.

Parameters:

numBits - the number of bits of the integer

Returns:

the integer read

Throws:

ErrorException - when some wrong bitstream or I/O operation occurs

readFloat

private float readFloat()
                 throws ErrorException

Reads a float from the file and returns its value.

Returns:

the float read

Throws:

ErrorException - when some wrong bitstream or I/O operation occurs

readByte

private int readByte()
              throws ErrorException

Reads a byte from the file and returns its value.

Returns:

the byte readed

Throws:

ErrorException - when some wrong bitstream or I/O operation occurs