Package jj2000.j2k.util

Class CodestreamManipulator

java.lang.Object

jj2000.j2k.util.CodestreamManipulator

public class CodestreamManipulator
extends java.lang.Object

This class takes a legal JPEG 2000 codestream and performs some manipulation on it. Currently the manipulations supported are: Tile-parts

Constructor Summary

Constructors

Constructor	Description
CodestreamManipulator(java.io.File file, int nt, int pptp, boolean ppm, boolean ppt, boolean tempSop, boolean tempEph)	Instantiates a codestream manipulator..

Method Summary

Modifier and Type	Method	Description
int	doCodestreamManipulation()	This method performs the actual manipulation of the codestream which is the reparsing for tile parts and packed packet headers

Methods inherited from class java.lang.Object

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

Constructor Detail

CodestreamManipulator

public CodestreamManipulator(java.io.File file,
                             int nt,
                             int pptp,
                             boolean ppm,
                             boolean ppt,
                             boolean tempSop,
                             boolean tempEph)

Instantiates a codestream manipulator..

Parameters:

file - The name of the original outfile

nt - The number of tiles in the image

pptp - Packets per tile-part. If zero, no division into tileparts is performed

ppm - Flag indicating that PPM marker is used

ppt - Flag indicating that PPT marker is used

tempSop - Flag indicating whether SOP merker should be removed

tempEph - Flag indicating whether EPH merker should be removed

Method Detail

doCodestreamManipulation

public int doCodestreamManipulation()
                             throws java.io.IOException

This method performs the actual manipulation of the codestream which is the reparsing for tile parts and packed packet headers

Returns:

The number of bytes that the file has increased by

Throws:

java.io.IOException - If an I/O error ocurred.