org.apache.pdfbox.io.ccitt
Class CCITTFaxG31DDecodeInputStream

java.lang.Object
  java.io.InputStream
      org.apache.pdfbox.io.ccitt.CCITTFaxG31DDecodeInputStream

All Implemented Interfaces:

Closeable, CCITTFaxConstants

public class CCITTFaxG31DDecodeInputStream
extends InputStream
implements CCITTFaxConstants

This is a CCITT Group 3 1D decoder (ITU T.4).

Version:

$Revision$

Field Summary

Fields inherited from interface org.apache.pdfbox.io.ccitt.CCITTFaxConstants

BLACK_MAKE_UP, BLACK_TERMINATING, COMPRESSION_GROUP3_1D, COMPRESSION_GROUP3_2D, COMPRESSION_GROUP4_2D, EOL_CODE, LONG_MAKE_UP, WHITE_MAKE_UP, WHITE_TERMINATING

Constructor Summary

CCITTFaxG31DDecodeInputStream(InputStream source, int columns, boolean encodedByteAlign)
Creates a new decoder.

CCITTFaxG31DDecodeInputStream(InputStream source, int columns, int rows, boolean encodedByteAlign)
Creates a new decoder.

Method Summary

boolean	markSupported()
int	read()

Methods inherited from class java.io.InputStream

available, close, mark, read, read, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

CCITTFaxG31DDecodeInputStream

public CCITTFaxG31DDecodeInputStream(InputStream source,
                                     int columns,
                                     int rows,
                                     boolean encodedByteAlign)

Creates a new decoder.

Parameters:

source - the input stream containing the compressed data.

columns - the number of columns

rows - the number of rows (0 if undefined)

encodedByteAlign - true if each encoded scan line is filled to a byte boundary, false if not

CCITTFaxG31DDecodeInputStream

public CCITTFaxG31DDecodeInputStream(InputStream source,
                                     int columns,
                                     boolean encodedByteAlign)

Creates a new decoder.

Parameters:

source - the input stream containing the compressed data.

columns - the number of columns

encodedByteAlign - true if each encoded scan line is filled to a byte boundary, false if not

Method Detail

markSupported

public boolean markSupported()

Overrides:

markSupported in class InputStream

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException