fr.esrf.tangoatk.widget.image
Class JpegDecoder

java.lang.Object
  java.io.InputStream
      fr.esrf.tangoatk.widget.image.JpegDecoder

All Implemented Interfaces:

java.io.Closeable

public class JpegDecoder
extends java.io.InputStream

A class to decode jpeg image Author: JL Pons

Field Summary

static int	GRAY8 8 Bits Gray scale
static int	RGB24 32 Bits RGB

Constructor Summary

JpegDecoder(byte[] jpgBuffer)
Contructs a JPEG decoder

Method Summary

int	available()
byte[][]	decode() Decode the image
int	GetType() Returns type (0 is returned if no image has been decoded)
int	read()

Methods inherited from class java.io.InputStream

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

Methods inherited from class java.lang.Object

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

Field Detail

RGB24

public static final int RGB24

32 Bits RGB

See Also:

Constant Field Values

GRAY8

public static final int GRAY8

8 Bits Gray scale

See Also:

Constant Field Values

Constructor Detail

JpegDecoder

public JpegDecoder(byte[] jpgBuffer)

Contructs a JPEG decoder

Parameters:

jpgBuffer - buffer of encoded data

Method Detail

GetType

public int GetType()

Returns type (0 is returned if no image has been decoded)

See Also:

RGB24, GRAY8

decode

public byte[][] decode()
                throws java.io.IOException

Decode the image

Returns:

An array of 8Bits graysscale or 32Bits RGB

Throws:

java.io.IOException - in case of failure

read

public int read()
         throws java.io.IOException

Specified by:

read in class java.io.InputStream

Throws:

java.io.IOException

available

public int available()
              throws java.io.IOException

Overrides:

available in class java.io.InputStream

Throws:

java.io.IOException