Package com.mcgath.jhove.module.png

Class IhdrChunk

java.lang.Object

com.mcgath.jhove.module.png.PNGChunk

com.mcgath.jhove.module.png.IhdrChunk

public class IhdrChunk
extends PNGChunk

Representation of the IHDR (header) 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
IhdrChunk(int sig, long leng)	Constructor

Method Summary

Modifier and Type	Method	Description
void	processChunk(RepInfo info)	The IHDR chunk contains image information in a fixed format.

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

IhdrChunk

public IhdrChunk(int sig,
 long leng)

Constructor

Method Details

processChunk

public void processChunk(RepInfo info)
                  throws Exception

The IHDR chunk contains image information in a fixed format. I don't think the spec says it can't have extra bytes which would just be padding.

Overrides:

processChunk in class PNGChunk

Throws:

Exception