Class YCbCr16UpsamplerStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

com.twelvemonkeys.imageio.plugins.tiff.YCbCr16UpsamplerStream

All Implemented Interfaces:

Closeable, AutoCloseable

final class YCbCr16UpsamplerStream
extends FilterInputStream

Input stream that provides on-the-fly upsampling of TIFF subsampled YCbCr 16 bit samples.

Version:

$Id: YCbCrUpsamplerStream.java,v 1.0 31.01.13 09:25 haraldk Exp$

Field Summary

Fields

Modifier and Type	Field	Description
private final byte[]	buffer
(package private) int	bufferLength
(package private) int	bufferPos
private final int	columns
(package private) int	decodedLength
(package private) int	decodedPos
private final byte[]	decodedRows
private final int	horizChromaSub
private final int	padding
private final int	units
private final int	unitSize
private final int	vertChromaSub
private final int	yCbCrPos

Fields inherited from class FilterInputStream

in

Constructor Summary

Constructors

Constructor	Description
YCbCr16UpsamplerStream(InputStream stream, int[] chromaSub, int yCbCrPos, int columns, ByteOrder byteOrder)

Method Summary

Modifier and Type	Method	Description
private void	decodeRows()
private void	fetch()
boolean	markSupported()
int	read()
int	read(byte[] b, int off, int len)
void	reset()
long	skip(long n)

Methods inherited from class FilterInputStream

available, close, mark, read

Methods inherited from class InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

Methods inherited from class Object

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

Field Details

horizChromaSub

private final int horizChromaSub

vertChromaSub

private final int vertChromaSub

yCbCrPos

private final int yCbCrPos

columns

private final int columns

units

private final int units

unitSize

private final int unitSize

padding

private final int padding

decodedRows

private final byte[] decodedRows

decodedLength

int decodedLength

decodedPos

int decodedPos

buffer

private final byte[] buffer

bufferLength

int bufferLength

bufferPos

int bufferPos

Constructor Details

YCbCr16UpsamplerStream

public YCbCr16UpsamplerStream(InputStream stream,
 int[] chromaSub,
 int yCbCrPos,
 int columns,
 ByteOrder byteOrder)

Method Details

fetch

private void fetch()
            throws IOException

Throws:

IOException

decodeRows

private void decodeRows()
                 throws EOFException

Throws:

EOFException

read

public int read()
         throws IOException

Overrides:

read in class FilterInputStream

Throws:

IOException

read

public int read(byte[] b,
 int off,
 int len)
         throws IOException

Overrides:

read in class FilterInputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class FilterInputStream

Throws:

IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class FilterInputStream

reset

public void reset()
           throws IOException

Overrides:

reset in class FilterInputStream

Throws:

IOException