edu.harvard.hul.ois.jhove.module.jpeg2000
Class PPMMarkerSegment

java.lang.Object
  edu.harvard.hul.ois.jhove.module.jpeg2000.MarkerSegment
      edu.harvard.hul.ois.jhove.module.jpeg2000.PPMMarkerSegment

public class PPMMarkerSegment
extends MarkerSegment

Class for the PPM (Packed packet headers, main header) marker segment. I'm assuming for the present that the full details of packet headers is getting deeper into the bits than we want, so it just checks some basic information. There can be multiple PPM marker segments.

Author:

Gary McGath

Field Summary

Fields inherited from class edu.harvard.hul.ois.jhove.module.jpeg2000.MarkerSegment

_ccs, _cs, _dstream, _module, _repInfo, COC, COD, COM, CRG, EOC, EPH, PLM, PLT, POC, PPM, PPT, QCC, QCD, RGN, SIZ, SOC, SOD, SOP, SOT, TLM

Constructor Summary

PPMMarkerSegment()
Constructor.

Method Summary

protected boolean

process(int bytesToEat) Processes the marker segment.

Methods inherited from class edu.harvard.hul.ois.jhove.module.jpeg2000.MarkerSegment

getMainOrTile, isMarker, markerSegmentMaker, nCompBytes, readMarkLen, setCodestream, setContCodestream, setDataInputStream, setModule, setRepInfo

Methods inherited from class java.lang.Object

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

Constructor Detail

PPMMarkerSegment

public PPMMarkerSegment()

Constructor.

Method Detail

process

protected boolean process(int bytesToEat)
                   throws java.io.IOException

Processes the marker segment. The DataInputStream will be at the point of having read the marker code. The process method must consume exactly the number of bytes remaining in the marker segment.

Specified by:

process in class MarkerSegment

Parameters:

bytesToEat - The number of bytes that must be consumed. If it is 0 for a MarkerSegment, the number of bytes to consume is unknown.

Returns:

true if segment is well-formed, false otherwise.

Throws:

java.io.IOException