Package com.mcgath.jhove.module.png

Class IdatChunk

java.lang.Object

com.mcgath.jhove.module.png.PNGChunk

com.mcgath.jhove.module.png.IdatChunk

public class IdatChunk
extends PNGChunk

The IDAT (pixel data) chunk

Field Summary

Fields inherited from class com.mcgath.jhove.module.png.PNGChunk

_dstream, _module, _nisoMetadata, _propList, ancillary, bKGD_HEAD_SIG, cHRM_HEAD_SIG, chunkData, chunkType, crc, duplicateAllowed, gAMA_HEAD_SIG, hIST_HEAD_SIG, iCCP_HEAD_SIG, IDAT_HEAD_SIG, IEND_HEAD_SIG, IHDR_HEAD_SIG, iTXt_HEAD_SIG, length, pHYs_HEAD_SIG, PLTE_HEAD_SIG, sBIT_HEAD_SIG, sPLT_HEAD_SIG, sRGB_HEAD_SIG, tEXt_HEAD_SIG, tIME_HEAD_SIG, tRNS_HEAD_SIG, zTXt_HEAD_SIG

Constructor Summary

Constructors

Constructor	Description
IdatChunk(int sig, long leng)	Constructor

Method Summary

Modifier and Type	Method	Description
void	processChunk(RepInfo info)	Process the chunk.

Methods inherited from class com.mcgath.jhove.module.png.PNGChunk

chunkTypeString, getChunkData, getChunkType, getCRC, getLength, makePNGChunk, processChunkCommon, readCRC, readUnsignedByte, readUnsignedInt, readUnsignedShort, setInputStream, setModule, setNisoMetadata, setPropertyList, skipBytes

Methods inherited from class java.lang.Object

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

Constructor Details

IdatChunk

public IdatChunk(int sig,
 long leng)

Constructor

Method Details

processChunk

public void processChunk(RepInfo info)
                  throws Exception

Process the chunk. We don't analyze or report the data, but we enforce the requirement that IDAT chunks must be consecutive.

Overrides:

processChunk in class PNGChunk

Throws:

Exception