org.kc7bfi.jflac
Class FixedPredictor

java.lang.Object
  org.kc7bfi.jflac.FixedPredictor

public class FixedPredictor
extends Object

Fixed Predictor utility class.

Author:

kc7bfi

Constructor Summary

FixedPredictor()

Method Summary

static int	computeBestPredictor(int[] data, int dataLen, double[] residualBitsPerSample) Compute the best predictor order.
static int	computeBestPredictorWide(int[] data, int dataLen, double[] residualBitsPerSample) Compute the best predictor order.
static void	computeResidual(int[] data, int dataLen, int order, int[] residual) Compute the residual from the compressed signal.
static void	restoreSignal(int[] residual, int dataLen, int order, int[] data, int startAt) Restore the signal from the fixed predictor.

Methods inherited from class java.lang.Object

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

Constructor Detail

FixedPredictor

public FixedPredictor()

Method Detail

computeBestPredictor

public static int computeBestPredictor(int[] data,
                                       int dataLen,
                                       double[] residualBitsPerSample)

Compute the best predictor order.

Parameters:

data -

dataLen -

residualBitsPerSample -

Returns:

computeBestPredictorWide

public static int computeBestPredictorWide(int[] data,
                                           int dataLen,
                                           double[] residualBitsPerSample)

Compute the best predictor order.

Parameters:

data -

dataLen -

residualBitsPerSample -

Returns:

computeResidual

public static void computeResidual(int[] data,
                                   int dataLen,
                                   int order,
                                   int[] residual)

Compute the residual from the compressed signal.

Parameters:

data -

dataLen -

order -

residual -

restoreSignal

public static void restoreSignal(int[] residual,
                                 int dataLen,
                                 int order,
                                 int[] data,
                                 int startAt)

Restore the signal from the fixed predictor.

Parameters:

residual - The residual data

dataLen - The length of residual data

order - The preicate order

data - The restored signal (output)

startAt - The starting position in the data array