org.verapdf.cos.filters

Class COSPredictorDecode

java.lang.Object

java.io.InputStream

org.verapdf.as.io.ASInputStream

org.verapdf.as.filters.ASInFilter

org.verapdf.as.filters.io.ASBufferedInFilter

org.verapdf.cos.filters.COSPredictorDecode

All Implemented Interfaces:

Closeable, AutoCloseable

public class COSPredictorDecode
extends ASBufferedInFilter

This filter represents predictor that is applied to Flate and LZW encodings.

Author:

Sergey Shemyakov

Field Summary

Fields

Modifier and Type	Field and Description
static int	BITS_PER_COMPONENT_DEFAULT
static int	COLORS_DEFAULT
static int	COLUMNS_DEFAULT
static byte	PREDICTOR_DEFAULT

Fields inherited from class org.verapdf.as.filters.io.ASBufferedInFilter

BF_BUFFER_SIZE, buffer

Fields inherited from class org.verapdf.as.io.ASInputStream

nPos, resourceUsers

Constructor Summary

Constructors

Constructor and Description
COSPredictorDecode(ASInputStream stream, COSDictionary decodeParams) Constructor from stream and decode parameters.

Method Summary

Modifier and Type	Method and Description
int	read(byte[] buffer, int size)
void	reset()

Methods inherited from class org.verapdf.as.filters.io.ASBufferedInFilter

addToBuffer, bufferPop, bufferPopArray, bufferSize, closeResource, concatenate, decode, feedBuffer, getBufferBegin, getBufferCapacity, getBufferEnd, getReadCounter, initialize, isEOF, peek, peek, processBuffer, read, readByte, resetReadCounter, skip, unread, unread

Methods inherited from class org.verapdf.as.filters.ASInFilter

close, getInputStream, incrementResourceUsers, read, setInputStream

Methods inherited from class org.verapdf.as.io.ASInputStream

createStreamFromStream

Methods inherited from class java.io.InputStream

available, mark, markSupported, read, skip

Methods inherited from class java.lang.Object

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

Field Detail

PREDICTOR_DEFAULT

public static final byte PREDICTOR_DEFAULT

See Also:

Constant Field Values

COLORS_DEFAULT

public static final int COLORS_DEFAULT

See Also:

Constant Field Values

BITS_PER_COMPONENT_DEFAULT

public static final int BITS_PER_COMPONENT_DEFAULT

See Also:

Constant Field Values

COLUMNS_DEFAULT

public static final int COLUMNS_DEFAULT

See Also:

Constant Field Values

Constructor Detail

COSPredictorDecode

public COSPredictorDecode(ASInputStream stream,
                          COSDictionary decodeParams)
                   throws IOException

Constructor from stream and decode parameters.

Parameters:

stream - is unpredicted stream.

decodeParams - is COSDictionary containing decode parameters.

Throws:

IOException

Method Detail

read

public int read(byte[] buffer,
                int size)
         throws IOException

Overrides:

read in class ASBufferedInFilter

Throws:

IOException

reset

public void reset()
           throws IOException

Overrides:

reset in class ASBufferedInFilter

Throws:

IOException