org.apache.pdfbox.jbig2.decoder.arithmetic

Class ArithmeticIntegerDecoder

java.lang.Object

org.apache.pdfbox.jbig2.decoder.arithmetic.ArithmeticIntegerDecoder

public class ArithmeticIntegerDecoder
extends Object

This class represents the arithmetic integer decoder, described in ISO/IEC 14492:2001 (Annex A).

Constructor Summary

Constructors

Constructor and Description
ArithmeticIntegerDecoder(ArithmeticDecoder decoder)

Method Summary

Modifier and Type	Method and Description
long	decode(CX cxIAx) Arithmetic Integer Decoding Procedure, Annex A.2.
int	decodeIAID(CX cxIAID, long symCodeLen) The IAID decoding procedure, Annex A.3.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArithmeticIntegerDecoder

public ArithmeticIntegerDecoder(ArithmeticDecoder decoder)

Method Detail

decode

public long decode(CX cxIAx)
            throws IOException

Arithmetic Integer Decoding Procedure, Annex A.2.

Parameters:

cxIAx - to be decoded value

Returns:

Decoded value.

Throws:

IOException - if an underlying IO operation fails

decodeIAID

public int decodeIAID(CX cxIAID,
                      long symCodeLen)
               throws IOException

The IAID decoding procedure, Annex A.3.

Parameters:

cxIAID - - The contexts and statistics for decoding procedure.

symCodeLen - - Symbol code length.

Returns:

The decoded value.

Throws:

IOException - if an underlying IO operation fails