public class GifModule extends ModuleBase
| Modifier and Type | Field and Description |
|---|---|
protected java.util.List |
_blocksList |
protected Checksummer |
_ckSummer |
protected ChecksumInputStream |
_cstream |
protected java.io.DataInputStream |
_dstream |
protected int |
_gceCounter |
protected boolean |
_globalColorTableFlag |
protected int |
_globalColorTableSize |
protected Property |
_metadata |
protected int |
_numGraphicBlocks |
protected byte[] |
_sig
PRIVATE INSTANCE FIELDS.
|
protected Property |
_xmpProp |
_app, _bigEndian, _checksumFinished, _countStream, _coverage, _crc32, _date, _defaultParams, _features, _format, _init, _isRandomAccess, _je, _logger, _md5, _mimeType, _name, _nByte, _note, _param, _release, _repInfoNote, _rights, _sha1, _signature, _specification, _validityNote, _vendor, _verbosity, _wellFormedNoteMAXIMUM_VERBOSITY, MINIMUM_VERBOSITY| Constructor and Description |
|---|
GifModule()
Instantiate a GifModule object.
|
| Modifier and Type | Method and Description |
|---|---|
protected Property |
addByteProperty(java.lang.String name,
int value,
java.lang.String[] labels) |
void |
checkSignatures(java.io.File file,
java.io.InputStream stream,
RepInfo info)
Check if the digital object conforms to this Module's
internal signature information.
|
protected void |
initParse()
Initializes the state of the module for parsing.
|
int |
parse(java.io.InputStream stream,
RepInfo info,
int parseIndex)
Parse the content of a purported GIF stream digital object and store the
results in RepInfo.
|
protected boolean |
readAppExtension(RepInfo info) |
protected boolean |
readBlock(RepInfo info) |
protected boolean |
readCommentExtension(RepInfo info) |
protected boolean |
readExtBlock(RepInfo info) |
protected boolean |
readGraphicsCtlBlock(RepInfo info) |
protected boolean |
readImage(RepInfo info) |
protected boolean |
readLSD(RepInfo info) |
protected boolean |
readPlainTextExtension(RepInfo info) |
protected boolean |
readSig(RepInfo info) |
protected int |
readUnsignedShort(java.io.DataInputStream stream) |
protected int |
readXMP() |
addIntegerProperty, addIntegerProperty, applyDefaultParams, calcRAChecksum, checkSignatures, getApp, getBase, getBufferedDataStream, getCoverage, getCRC32, getDate, getDefaultParams, getFeatures, getFormat, getMimeType, getName, getNByte, getNote, getRelease, getRepInfoNote, getRights, getSignature, getSpecification, getValidityNote, getVendor, getWellFormedNote, hasFeature, init, initFeatures, isBigEndian, isRandomAccess, param, parse, readByteBuf, readDouble, readDouble, readDouble, readFloat, readFloat, readSignedByte, readSignedByte, readSignedByte, readSignedInt, readSignedInt, readSignedInt, readSignedLong, readSignedRational, readSignedRational, readSignedShort, readSignedShort, readSignedShort, readUnsignedByte, readUnsignedByte, readUnsignedByte, readUnsignedInt, readUnsignedInt, readUnsignedInt, readUnsignedRational, readUnsignedRational, readUnsignedRational, readUnsignedShort, readUnsignedShort, readUnsignedShort, resetParams, setApp, setBase, setChecksums, setCRC32, setDefaultParams, setMD5, setNByte, setSHA1, setValidityNote, setVerbosity, show, skipBytes, skipBytes, vectorToPropArrayprotected byte[] _sig
protected Checksummer _ckSummer
protected Property _xmpProp
protected ChecksumInputStream _cstream
protected java.io.DataInputStream _dstream
protected boolean _globalColorTableFlag
protected int _globalColorTableSize
protected int _gceCounter
protected Property _metadata
protected java.util.List _blocksList
protected int _numGraphicBlocks
public void checkSignatures(java.io.File file,
java.io.InputStream stream,
RepInfo info)
throws java.io.IOException
checkSignatures in interface ModulecheckSignatures in class ModuleBasefile - A File object for the object being parsedstream - An InputStream, positioned at its beginning,
which is generated from the object to be parsedinfo - A fresh RepInfo object which will be modified
to reflect the results of the testjava.io.IOExceptionpublic int parse(java.io.InputStream stream,
RepInfo info,
int parseIndex)
throws java.io.IOException
parse in interface Moduleparse in class ModuleBasestream - An InputStream, positioned at its beginning,
which is generated from the object to be parsedinfo - A fresh RepInfo object which will be modified
to reflect the results of the parsingparseIndex - Must be 0 in first call to parse. If
parse returns a nonzero value, it must be
called again with parseIndex
equal to that return value.java.io.IOExceptionprotected void initParse()
initParse in class ModuleBaseprotected boolean readSig(RepInfo info) throws java.io.IOException
java.io.IOExceptionprotected boolean readLSD(RepInfo info) throws java.io.IOException
java.io.IOExceptionprotected boolean readBlock(RepInfo info) throws java.io.IOException
java.io.IOExceptionprotected boolean readExtBlock(RepInfo info) throws java.io.IOException
java.io.IOExceptionprotected boolean readImage(RepInfo info) throws java.io.IOException
java.io.IOExceptionprotected boolean readAppExtension(RepInfo info) throws java.io.IOException
java.io.IOExceptionprotected boolean readCommentExtension(RepInfo info) throws java.io.IOException
java.io.IOExceptionprotected boolean readPlainTextExtension(RepInfo info) throws java.io.IOException
java.io.IOExceptionprotected boolean readGraphicsCtlBlock(RepInfo info) throws java.io.IOException
java.io.IOExceptionprotected int readXMP()
throws java.io.IOException
java.io.IOExceptionprotected Property addByteProperty(java.lang.String name, int value, java.lang.String[] labels)
protected int readUnsignedShort(java.io.DataInputStream stream)
throws java.io.IOException
java.io.IOException