uk.co.mmscomputing.imageio.jpeg
Class JPEGComponentInputStream

java.lang.Object
  java.io.InputStream
      uk.co.mmscomputing.imageio.jpeg.JPEGComponentInputStream

All Implemented Interfaces:

java.io.Closeable

public class JPEGComponentInputStream
extends java.io.InputStream

Field Summary

protected int	bps
protected int	height
protected int	Hf
protected int	HMax
protected int	id
protected JPEGDCTInputStream	in
protected int[]	qt
protected int	shift
protected int	Vf
protected int	VMax
protected int	width
protected int	Xf
protected int	Yf

Constructor Summary

JPEGComponentInputStream(int id)

Method Summary

protected void	copyDataUnit(byte[] buf, int off, int maxy, int maxx, int[] buffer)
protected void	copyDataUnit(int[] buf, int off, int maxy, int maxx, int[] buffer)
protected void	copyPixel(byte[] buf, int off, int maxy, int maxx, int b)
protected void	copyPixel(int[] buf, int off, int maxy, int maxx, int b)
int	getId()
int	read()
void	read(byte[] buf, int off, int maxy, int maxx)
void	read(int[] buf, int off, int maxy, int maxx)
void	restart()
void	setBitsPerSample(int bps)
void	setDimensions(int h, int w)
void	setHuffmanTables(JPEGHuffmanInputStream dc, JPEGHuffmanInputStream ac)
void	setMaxSamplingRate(int VMax, int HMax)
void	setQuantizationTable(int[] qt)
void	setSamplingRate(int Vf, int Hf)
void	setShift(int shift)
java.lang.String	toString()

Methods inherited from class java.io.InputStream

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

Methods inherited from class java.lang.Object

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

Field Detail

id

protected int id

shift

protected int shift

height

protected int height

width

protected int width

bps

protected int bps

Hf

protected int Hf

Vf

protected int Vf

HMax

protected int HMax

VMax

protected int VMax

Yf

protected int Yf

Xf

protected int Xf

qt

protected int[] qt

in

protected JPEGDCTInputStream in

Constructor Detail

JPEGComponentInputStream

public JPEGComponentInputStream(int id)

Method Detail

getId

public int getId()

setShift

public void setShift(int shift)

setBitsPerSample

public void setBitsPerSample(int bps)

setDimensions

public void setDimensions(int h,
                          int w)

setSamplingRate

public void setSamplingRate(int Vf,
                            int Hf)

setMaxSamplingRate

public void setMaxSamplingRate(int VMax,
                               int HMax)

setQuantizationTable

public void setQuantizationTable(int[] qt)

setHuffmanTables

public void setHuffmanTables(JPEGHuffmanInputStream dc,
                             JPEGHuffmanInputStream ac)

restart

public void restart()
             throws java.io.IOException

Throws:

java.io.IOException

read

public int read()
         throws java.io.IOException

Specified by:

read in class java.io.InputStream

Throws:

java.io.IOException

copyPixel

protected void copyPixel(int[] buf,
                         int off,
                         int maxy,
                         int maxx,
                         int b)

copyDataUnit

protected void copyDataUnit(int[] buf,
                            int off,
                            int maxy,
                            int maxx,
                            int[] buffer)
                     throws java.io.IOException

Throws:

java.io.IOException

read

public void read(int[] buf,
                 int off,
                 int maxy,
                 int maxx)
          throws java.io.IOException

Throws:

java.io.IOException

copyPixel

protected void copyPixel(byte[] buf,
                         int off,
                         int maxy,
                         int maxx,
                         int b)

copyDataUnit

protected void copyDataUnit(byte[] buf,
                            int off,
                            int maxy,
                            int maxx,
                            int[] buffer)
                     throws java.io.IOException

Throws:

java.io.IOException

read

public void read(byte[] buf,
                 int off,
                 int maxy,
                 int maxx)
          throws java.io.IOException

Throws:

java.io.IOException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object