Package org.loboevolution.pdfview.decode

Class ASCII85Decode

java.lang.Object

org.loboevolution.pdfview.decode.ASCII85Decode

public final class ASCII85Decode
extends Object

decode ASCII85 text into a byte array.

Author Mike Wessler

Method Summary

Modifier and Type	Method	Description
static ByteBuffer	decode(ByteBuffer buf, PDFObject params)	decode an array of bytes in ASCII85 format.

Methods inherited from class java.lang.Object

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

Method Details

decode

public static ByteBuffer decode(ByteBuffer buf,
 PDFObject params)
                         throws PDFParseException

decode an array of bytes in ASCII85 format.

In ASCII85 format, every 5 characters represents 4 decoded bytes in base 85. The entire stream can contain whitespace, and ends in the characters '~>'.

Parameters:

buf - the encoded ASCII85 characters in a byte buffer

params - parameters to the decoder (ignored)

Returns:

the decoded bytes

Throws:

PDFParseException - if any.