Package org.jpedal.io.filter

Class DCT

java.lang.Object

com.idrsolutions.image.filter.Filter

org.jpedal.io.filter.DCT

public class DCT
extends Filter

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	DCT.TRANSFORM

Field Summary

Fields

Modifier and Type	Field	Description
static final DCT.TRANSFORM	vp8_short_fdct4x4
static final DCT.TRANSFORM	vp8_short_fdct8x4
static final DCT.TRANSFORM	vp8_short_walsh4x4

Constructor Summary

Constructors

Constructor	Description
DCT(FilterOptions options)

Method Summary

Modifier and Type	Method	Description
byte[]	decode(byte[] data)
void	decode(BufferedInputStream bis, BufferedOutputStream streamCache, String cacheName, Map<String,String> cachedObjects)
byte[]	encode(byte[] data)
void	encode(BufferedInputStream bis, BufferedOutputStream bos)
static void	IDCTQ(com.idrsolutions.image.jpeg.data.Component component, int offset, int[] p)
static void	IDCTQ12(com.idrsolutions.image.jpeg.data.Component component, int offset)
static void	IDCTQInts(com.idrsolutions.image.jpeg.data.Component component, int[] p)

Methods inherited from class com.idrsolutions.image.filter.Filter

hasError, setEncHash, setupCachedObjectForDecoding

Methods inherited from class java.lang.Object

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

Field Details

vp8_short_fdct8x4

public static final DCT.TRANSFORM vp8_short_fdct8x4

vp8_short_fdct4x4

public static final DCT.TRANSFORM vp8_short_fdct4x4

vp8_short_walsh4x4

public static final DCT.TRANSFORM vp8_short_walsh4x4

Constructor Details

DCT

public DCT(FilterOptions options)

Method Details

IDCTQ12

public static void IDCTQ12(com.idrsolutions.image.jpeg.data.Component component,
 int offset)

IDCTQ

public static void IDCTQ(com.idrsolutions.image.jpeg.data.Component component,
 int offset,
 int[] p)

IDCTQInts

public static void IDCTQInts(com.idrsolutions.image.jpeg.data.Component component,
 int[] p)

decode

public byte[] decode(byte[] data)
              throws Exception

Specified by:

decode in class Filter

Throws:

Exception

decode

public void decode(BufferedInputStream bis,
 BufferedOutputStream streamCache,
 String cacheName,
 Map<String,String> cachedObjects)
            throws Exception

Specified by:

decode in class Filter

Throws:

Exception

encode

public byte[] encode(byte[] data)

Specified by:

encode in class Filter

encode

public void encode(BufferedInputStream bis,
 BufferedOutputStream bos)
            throws Exception

Specified by:

encode in class Filter

Throws:

Exception