org.restcomm.media.codec.ilbc

Class CodingFunctions

java.lang.Object

org.restcomm.media.codec.ilbc.CodingFunctions

public class CodingFunctions
extends Object

Author:

oifa yulian

Constructor Summary

Constructors

Constructor and Description
CodingFunctions()

Method Summary

Methods

Modifier and Type	Method and Description
static void	absQuant(EncoderBits encoderBits, short[] in, int inIndex, short[] weightDenum, int weightDenumIndex)
static void	absQUantLoop(EncoderBits encoderBits, short[] syntOut, int syntOutIndex, short[] inWeighted, int inWeightedIndex, short[] weightDenum, int weightDenumIndex, short[] quantLen, int quantLenIndex)
static void	augmentCbCorr(short[] target, int targetIndex, short[] buf, int bufIndex, short[] interpSamples, int interpSamplesIndex, int[] cDot, int cDotIndex, int low, int high, int scale)
static void	autoCorrelation(short[] input, int inputIndex, int inputLength, int order, int[] result, int resultIndex)
static void	cbConstruct(EncoderBits encoderBits, short[] decVector, int decVectorIndex, short[] mem, int memIndex, short length, short vectorLength, int cbIndexIndex, int gainIndexIndex)
static void	cbMemEnergy(short range, short[] cb, int cbIndex, short[] filteredCB, int filteredCbIndex, short length, short targetLength, short[] energy, int energyIndex, short[] energyShifts, int energyShiftsIndex, short scale, short baseSize)
static void	cbMemEnergyAugmentation(short[] interpSamples, int interpSamplesIndex, short[] cbMem, int cbMemIndex, short scale, short baseSize, short[] energy, int energyIndex, short[] energyShifts, int energyShiftsIndex)
static void	cbSearch(EncoderState encoderState, EncoderBits encoderBits, CbSearchData searchData, CbUpdateIndexData updateIndexData, short[] inTarget, int inTargetIndex, short[] decResidual, int decResidualIndex, int length, int vectorLength, short[] weightDenum, int weightDenumindex, int blockNumber, int cbIndexIndex, int gainIndexIndex)
static void	cbSearchCore(CbSearchData searchData, int[] cDot, int cDotIndex, short range, short stage, short[] inverseEnergy, int inverseEnergyIndex, short[] inverseEnergyShift, int inverseEnergyShiftIndex, int[] crit, int critIndex)
static short	chebushev(short value, short[] coefs, int coefsIndex)
static void	compCorr(CorrData currData, short[] buffer, int bufferIndex, short lag, short bLen, short sRange, short scale)
static void	createAugmentVector(short index, short[] buf, int bufIndex, short[] cbVec, int cbVecIndex)
static void	crossCorrelation(int[] crossCorrelation, int crossCorrelationIndex, short[] seq1, int seq1Index, short[] seq2, int seq2Index, short dimSeq, short dimCrossCorrelation, short rightShifts, short stepSeq2)
static void	decodeResidual(DecoderState decoderState, EncoderBits encoderBits, short[] decResidual, int decResidualIndex, short[] syntDenum, int syntDenumIndex)
static void	decoderInterpolateLsf(DecoderState decoderState, short[] syntDenum, int syntDenumIndex, short[] weightDenum, int weightDenumIndex, short[] lsfDeq, int lsfDeqIndex, short length)
static void	doThePlc(DecoderState decoderState, short[] plcResidual, int plcResidualIndex, short[] plcLpc, int plcLpcIndex, short pli, short[] decResidual, int decResidualIndex, short[] lpc, int lpcIndex, short inLag)
static void	energyCalc(int energy, short range, short[] ppi, int ppiIndex, short[] ppo, int ppoIndex, short[] energyArray, int energyArrayIndex, short[] energyShifts, int energyShiftsIndex, short scale, short baseSize)
static void	energyInverse(short[] energy, int energyIndex, int length)
static void	filteredCBVecs(short[] cbVectors, int cbVectorsIndex, short[] cbMem, int cbMemIndex, int length, int samples)
static short	frameClassify(short[] residual)
static short	gainDequant(short index, short maxIn, short stage)
static short	gainQuant(short gain, short maxIn, short stage, short[] index, int indexIndex)
static void	getCbVec(short[] cbVec, int cbVecIndex, short[] mem, int memIndex, short index, int length, int vectorLength)
static void	getLspPoly(short[] lsp, int lspIndex, int[] f, int fIndex)
static void	hpInput(EncoderState encoderState, short[] data, int startIndex, int length)
static void	hpOutput(short[] signal, short[] ba, short[] y, short[] x, short len)
static void	interpolate(short[] out, int outIndex, short[] in1, int in1Index, short[] in2, int in2Index, short coef, int length)
static void	interpolateSamples(short[] interpSamples, int interpSamplesIndex, short[] cbMem, int cbMemIndex, int length)
static boolean	levinsonDurbin(int[] R, int rIndex, short[] A, int aIndex, short[] K, int kIndex, int order)
static void	lpcEncode(EncoderState encoderState, EncoderBits encoderBits, short[] synthDenum, int synthDenumIndex, short[] weightDenum, int weightDenumIndex, short[] data, int startIndex)
static void	lsf2Lsp(short[] lsf, int lsfIndex, short[] lsp, int lspIndex, int count)
static void	lsf2Poly(short[] a, int aIndex, short[] lsf, int lsfIndex)
static void	lsfCheck(short[] lsf, int lsfIndex, int lsfSize)
static void	lsfInterpolate2PolyEnc(short[] a, short aIndex, short[] lsf1, int lsf1Index, short[] lsf2, int lsf2Index, short coef, int length)
static void	lspInterpolate2PolyDec(short[] a, int aIndex, short[] lsf1, int lsf1Index, short[] lsf2, int lsf2Index, short coef, int length)
static void	lspToLsf(short[] lsp, int lspIndex, short[] lsf, int lsfIndex, int coefsNumber)
static void	packBits(EncoderState encoderState, EncoderBits encoderBits, byte[] result)
static void	poly2Lsf(short[] lsf, int lsfIndex, short[] A, int aIndex)
static void	poly2Lsp(short[] A, int aIndex, short[] lsp, int lspIndex)
static void	simpleInterpolateLsf(EncoderState encoderState, short[] synthdenum, int synthDenumIndex, short[] weightDenum, int weightDenumIndex, short[] lsf, int lsfIndex, short[] lsfDeq, int lsfDeqIndex, int length)
static short[]	simpleLpcAnalysis(EncoderState encoderState, short[] lsf, int lsfIndex, short[] data, int startIndex)
static void	simpleLsfDeq(short[] lsfDeq, int lsfDeqIndex, short[] index, int indexIndex, int lpcN)
static void	simpleLsfQ(EncoderBits encoderBits, short[] lsfdeq, int lsfdeqIndex, short[] lsfArray, int lsfArrrayIndex)
static void	splitVq(short[] qX, int qXIndex, short[] lsf, int lsfIndex, short[] X, int xIndex)
static void	stateConstruct(EncoderBits encoderBits, short[] syntDenum, int syntDenumIndex, short[] outFix, int outFixIndex, int stateLen)
static void	stateSearch(EncoderState encoderState, EncoderBits encoderBits, short[] residual, int residualIndex, short[] syntDenum, int syntIndex, short[] weightDenum, int weightIndex)
static void	unpackBits(EncoderBits encoderBits, short[] data, int mode)
static void	updateBestIndex(CbUpdateIndexData updateIndexData, int critNew, short critNewSh, short indexNew, int cDotNew, short inverseEnergyNew, short energyShiftNew)
static void	updateDecIndex(EncoderBits encoderBits)
static void	vq3(short[] qX, int qXIndex, short[] lsf, int lsfIndex, int cbIndex, short[] X, int xIndex, int cbSize)
static void	vq4(short[] qX, int qXIndex, short[] lsf, int lsfIndex, int cbIndex, short[] X, int xIndex, int cbSize)
static void	windowMultiply(int[] output, int outputIndex, int[] input, int inputIndex, int[] window, int length)
static int	xCorrCoef(short[] target, int targetIndex, short[] regressor, int regressorIndex, short subl, short searchLen, short offset, short step)

Methods inherited from class java.lang.Object

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

Constructor Detail

CodingFunctions

public CodingFunctions()

Method Detail

hpInput

public static void hpInput(EncoderState encoderState,
           short[] data,
           int startIndex,
           int length)

hpOutput

public static void hpOutput(short[] signal,
            short[] ba,
            short[] y,
            short[] x,
            short len)

lpcEncode

public static void lpcEncode(EncoderState encoderState,
             EncoderBits encoderBits,
             short[] synthDenum,
             int synthDenumIndex,
             short[] weightDenum,
             int weightDenumIndex,
             short[] data,
             int startIndex)

simpleLpcAnalysis

public static short[] simpleLpcAnalysis(EncoderState encoderState,
                        short[] lsf,
                        int lsfIndex,
                        short[] data,
                        int startIndex)

autoCorrelation

public static void autoCorrelation(short[] input,
                   int inputIndex,
                   int inputLength,
                   int order,
                   int[] result,
                   int resultIndex)

windowMultiply

public static void windowMultiply(int[] output,
                  int outputIndex,
                  int[] input,
                  int inputIndex,
                  int[] window,
                  int length)

levinsonDurbin

public static boolean levinsonDurbin(int[] R,
                     int rIndex,
                     short[] A,
                     int aIndex,
                     short[] K,
                     int kIndex,
                     int order)

simpleInterpolateLsf

public static void simpleInterpolateLsf(EncoderState encoderState,
                        short[] synthdenum,
                        int synthDenumIndex,
                        short[] weightDenum,
                        int weightDenumIndex,
                        short[] lsf,
                        int lsfIndex,
                        short[] lsfDeq,
                        int lsfDeqIndex,
                        int length)

lsfInterpolate2PolyEnc

public static void lsfInterpolate2PolyEnc(short[] a,
                          short aIndex,
                          short[] lsf1,
                          int lsf1Index,
                          short[] lsf2,
                          int lsf2Index,
                          short coef,
                          int length)

interpolate

public static void interpolate(short[] out,
               int outIndex,
               short[] in1,
               int in1Index,
               short[] in2,
               int in2Index,
               short coef,
               int length)

lsf2Poly

public static void lsf2Poly(short[] a,
            int aIndex,
            short[] lsf,
            int lsfIndex)

lsf2Lsp

public static void lsf2Lsp(short[] lsf,
           int lsfIndex,
           short[] lsp,
           int lspIndex,
           int count)

getLspPoly

public static void getLspPoly(short[] lsp,
              int lspIndex,
              int[] f,
              int fIndex)

poly2Lsf

public static void poly2Lsf(short[] lsf,
            int lsfIndex,
            short[] A,
            int aIndex)

poly2Lsp

public static void poly2Lsp(short[] A,
            int aIndex,
            short[] lsp,
            int lspIndex)

chebushev

public static short chebushev(short value,
              short[] coefs,
              int coefsIndex)

lspToLsf

public static void lspToLsf(short[] lsp,
            int lspIndex,
            short[] lsf,
            int lsfIndex,
            int coefsNumber)

simpleLsfQ

public static void simpleLsfQ(EncoderBits encoderBits,
              short[] lsfdeq,
              int lsfdeqIndex,
              short[] lsfArray,
              int lsfArrrayIndex)

splitVq

public static void splitVq(short[] qX,
           int qXIndex,
           short[] lsf,
           int lsfIndex,
           short[] X,
           int xIndex)

vq3

public static void vq3(short[] qX,
       int qXIndex,
       short[] lsf,
       int lsfIndex,
       int cbIndex,
       short[] X,
       int xIndex,
       int cbSize)

vq4

public static void vq4(short[] qX,
       int qXIndex,
       short[] lsf,
       int lsfIndex,
       int cbIndex,
       short[] X,
       int xIndex,
       int cbSize)

lsfCheck

public static void lsfCheck(short[] lsf,
            int lsfIndex,
            int lsfSize)

gainDequant

public static short gainDequant(short index,
                short maxIn,
                short stage)

gainQuant

public static short gainQuant(short gain,
              short maxIn,
              short stage,
              short[] index,
              int indexIndex)

cbMemEnergyAugmentation

public static void cbMemEnergyAugmentation(short[] interpSamples,
                           int interpSamplesIndex,
                           short[] cbMem,
                           int cbMemIndex,
                           short scale,
                           short baseSize,
                           short[] energy,
                           int energyIndex,
                           short[] energyShifts,
                           int energyShiftsIndex)

cbMemEnergy

public static void cbMemEnergy(short range,
               short[] cb,
               int cbIndex,
               short[] filteredCB,
               int filteredCbIndex,
               short length,
               short targetLength,
               short[] energy,
               int energyIndex,
               short[] energyShifts,
               int energyShiftsIndex,
               short scale,
               short baseSize)

cbSearch

public static void cbSearch(EncoderState encoderState,
            EncoderBits encoderBits,
            CbSearchData searchData,
            CbUpdateIndexData updateIndexData,
            short[] inTarget,
            int inTargetIndex,
            short[] decResidual,
            int decResidualIndex,
            int length,
            int vectorLength,
            short[] weightDenum,
            int weightDenumindex,
            int blockNumber,
            int cbIndexIndex,
            int gainIndexIndex)

cbSearchCore

public static void cbSearchCore(CbSearchData searchData,
                int[] cDot,
                int cDotIndex,
                short range,
                short stage,
                short[] inverseEnergy,
                int inverseEnergyIndex,
                short[] inverseEnergyShift,
                int inverseEnergyShiftIndex,
                int[] crit,
                int critIndex)

cbConstruct

public static void cbConstruct(EncoderBits encoderBits,
               short[] decVector,
               int decVectorIndex,
               short[] mem,
               int memIndex,
               short length,
               short vectorLength,
               int cbIndexIndex,
               int gainIndexIndex)

stateSearch

public static void stateSearch(EncoderState encoderState,
               EncoderBits encoderBits,
               short[] residual,
               int residualIndex,
               short[] syntDenum,
               int syntIndex,
               short[] weightDenum,
               int weightIndex)

stateConstruct

public static void stateConstruct(EncoderBits encoderBits,
                  short[] syntDenum,
                  int syntDenumIndex,
                  short[] outFix,
                  int outFixIndex,
                  int stateLen)

filteredCBVecs

public static void filteredCBVecs(short[] cbVectors,
                  int cbVectorsIndex,
                  short[] cbMem,
                  int cbMemIndex,
                  int length,
                  int samples)

crossCorrelation

public static void crossCorrelation(int[] crossCorrelation,
                    int crossCorrelationIndex,
                    short[] seq1,
                    int seq1Index,
                    short[] seq2,
                    int seq2Index,
                    short dimSeq,
                    short dimCrossCorrelation,
                    short rightShifts,
                    short stepSeq2)

updateBestIndex

public static void updateBestIndex(CbUpdateIndexData updateIndexData,
                   int critNew,
                   short critNewSh,
                   short indexNew,
                   int cDotNew,
                   short inverseEnergyNew,
                   short energyShiftNew)

getCbVec

public static void getCbVec(short[] cbVec,
            int cbVecIndex,
            short[] mem,
            int memIndex,
            short index,
            int length,
            int vectorLength)

createAugmentVector

public static void createAugmentVector(short index,
                       short[] buf,
                       int bufIndex,
                       short[] cbVec,
                       int cbVecIndex)

energyInverse

public static void energyInverse(short[] energy,
                 int energyIndex,
                 int length)

energyCalc

public static void energyCalc(int energy,
              short range,
              short[] ppi,
              int ppiIndex,
              short[] ppo,
              int ppoIndex,
              short[] energyArray,
              int energyArrayIndex,
              short[] energyShifts,
              int energyShiftsIndex,
              short scale,
              short baseSize)

augmentCbCorr

public static void augmentCbCorr(short[] target,
                 int targetIndex,
                 short[] buf,
                 int bufIndex,
                 short[] interpSamples,
                 int interpSamplesIndex,
                 int[] cDot,
                 int cDotIndex,
                 int low,
                 int high,
                 int scale)

absQuant

public static void absQuant(EncoderBits encoderBits,
            short[] in,
            int inIndex,
            short[] weightDenum,
            int weightDenumIndex)

absQUantLoop

public static void absQUantLoop(EncoderBits encoderBits,
                short[] syntOut,
                int syntOutIndex,
                short[] inWeighted,
                int inWeightedIndex,
                short[] weightDenum,
                int weightDenumIndex,
                short[] quantLen,
                int quantLenIndex)

interpolateSamples

public static void interpolateSamples(short[] interpSamples,
                      int interpSamplesIndex,
                      short[] cbMem,
                      int cbMemIndex,
                      int length)

frameClassify

public static short frameClassify(short[] residual)

packBits

public static void packBits(EncoderState encoderState,
            EncoderBits encoderBits,
            byte[] result)

unpackBits

public static void unpackBits(EncoderBits encoderBits,
              short[] data,
              int mode)

updateDecIndex

public static void updateDecIndex(EncoderBits encoderBits)

simpleLsfDeq

public static void simpleLsfDeq(short[] lsfDeq,
                int lsfDeqIndex,
                short[] index,
                int indexIndex,
                int lpcN)

decoderInterpolateLsf

public static void decoderInterpolateLsf(DecoderState decoderState,
                         short[] syntDenum,
                         int syntDenumIndex,
                         short[] weightDenum,
                         int weightDenumIndex,
                         short[] lsfDeq,
                         int lsfDeqIndex,
                         short length)

lspInterpolate2PolyDec

public static void lspInterpolate2PolyDec(short[] a,
                          int aIndex,
                          short[] lsf1,
                          int lsf1Index,
                          short[] lsf2,
                          int lsf2Index,
                          short coef,
                          int length)

decodeResidual

public static void decodeResidual(DecoderState decoderState,
                  EncoderBits encoderBits,
                  short[] decResidual,
                  int decResidualIndex,
                  short[] syntDenum,
                  int syntDenumIndex)

xCorrCoef

public static int xCorrCoef(short[] target,
            int targetIndex,
            short[] regressor,
            int regressorIndex,
            short subl,
            short searchLen,
            short offset,
            short step)

doThePlc

public static void doThePlc(DecoderState decoderState,
            short[] plcResidual,
            int plcResidualIndex,
            short[] plcLpc,
            int plcLpcIndex,
            short pli,
            short[] decResidual,
            int decResidualIndex,
            short[] lpc,
            int lpcIndex,
            short inLag)

compCorr

public static void compCorr(CorrData currData,
            short[] buffer,
            int bufferIndex,
            short lag,
            short bLen,
            short sRange,
            short scale)