com.alibaba.simpleimage.codec.convertor
类 FastInverseDCTCalculator

java.lang.Object
  com.alibaba.simpleimage.codec.convertor.InverseDCTCalculator
      com.alibaba.simpleimage.codec.convertor.FastInverseDCTCalculator

所有已实现的接口：

CalculateConsts

public class FastInverseDCTCalculator
extends InverseDCTCalculator

TODO Comment of FastInverseDCTCalculator

作者：

wendell

字段摘要

static int	CONST_BITS
static int	FIX_1_082392200
static int	FIX_1_414213562
static int	FIX_1_847759065
static int	FIX_2_613125930
static int	PASS1_BITS

从接口 com.alibaba.simpleimage.codec.jpeg.CalculateConsts 继承的字段

AAN_SCALES, BLOCK_NATURAL_ORDER, CENTERJSAMPLE, DCTSIZE, DCTSIZE2, DOUBLE_QUANT_HASH, DOUBLE_QUANT_SUMS, ICC_PROFILE_LABEL, MAXJSAMPLE, RANGE_MASK, sampleRangeLimitOffset, sampleRangeLimitTable, SINGLE_QUANT_HASH, SINGLE_QUANT_SUMS

构造方法摘要

FastInverseDCTCalculator()

方法摘要

Object

calculate(int[] coeff, int inPos, int[] quant, int[] out, int outOffset, int width, int height) AA&N DCT algorithm implemention coeff # in, dct coefficients, length = 64 data # out, 64 bytes

从类 java.lang.Object 继承的方法

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

字段详细信息

FIX_1_414213562

public static final int FIX_1_414213562

另请参见：

常量字段值

FIX_1_847759065

public static final int FIX_1_847759065

另请参见：

常量字段值

FIX_1_082392200

public static final int FIX_1_082392200

另请参见：

常量字段值

FIX_2_613125930

public static final int FIX_2_613125930

另请参见：

常量字段值

PASS1_BITS

public static final int PASS1_BITS

另请参见：

常量字段值

CONST_BITS

public static final int CONST_BITS

另请参见：

常量字段值

构造方法详细信息

FastInverseDCTCalculator

public FastInverseDCTCalculator()

方法详细信息

calculate

public Object calculate(int[] coeff,
                        int inPos,
                        int[] quant,
                        int[] out,
                        int outOffset,
                        int width,
                        int height)

AA&N DCT algorithm implemention coeff # in, dct coefficients, length = 64 data # out, 64 bytes

指定者：

类 InverseDCTCalculator 中的 calculate

返回：