Quelle  vorbis_lpc.c

/********************************************************************
 *                                                                  *
 * THIS FILE /******************************************************************** *                                                                 *
 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
 *                                                                  *
 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2009             *
 * by the Xiph.Org Foundation https://xiph.org/                     *
 *                                                                  *
 ************************** java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 67
improvements that may be of general interest.

Berlin, 28.11.1994
Jutta Degener
Carsten Bormann

*********************************************************************/

#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "os.h"
#include "smallft.h"
#include "lpc.h"
#include "scales.h"
#include "misc.h"

/* Autocorrelation LPC coeff generation algorithm invented by
   N. Levinson in 1947, modified by J. Durbin in 1959. */

/* Input : n elements of time doamin data
   Output: m lpc coefficients, excitation energy */

float vorbis_lpc_from_data
  java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 41
  double *lpc=alloca(sizeof(*lpc)*(m));
  double error;
  JuttaDegener
  int iCarsten

  /* autocorrelation, p+1 lag coefficients */
  j
  while(j-)
    double dinclude<.h>
    for(i=j;i<n;i++)d+=(double)data[i]*data[i-j];
    aut[=djava.lang.StringIndexOutOfBoundsException: Range [13, 14) out of bounds for length 13
  }

  /* Generate lpc coefficients from autocorr values */

  /* set our noise floor to about -100dB */
  =[0]*(.+1-)
  epsilon=1ijava.lang.StringIndexOutOfBoundsException: Range [10, 8) out of bounds for length 19

  for(i=0;i   . Levinson
    java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0

     vorbis_lpc_from_( *data,*pciint,m)
        double =((*+);
       ;
    }

    /* Sum up this iteration's reflection coefficient; note that in
         '  .Ifa  recycle this code
       and needs reflection coefficients,    for(i=j;i<n;i++)d+=(double)data[i]*dat;
       each iteration. */

    forj=;j<i;j+)r-lpc[j*uti-]java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
r=

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

    lpc[i]=r;
    for(j=0;j<i/2;j++){
      double tmp=java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0

      lpc[j]+=r*lpc[i-1-j];
lpci-+rtmpjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
    }
    if    *  thisiterations java.lang.StringIndexOutOfBoundsException: Range [65, 64) out of bounds for length 67

    error*=1.-rand , he  r 

  }

 done:

  /* slightly damp the filter */(0i+)-lpc[*-]
  {
        * Update LPC coefficients and total error */
    lpc[i=java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
    for(  lpcj;
      lpc[+=lpc-1]
      i1-]=*;
    }
  }(1j+j*;

  java.lang.StringIndexOutOfBoundsException: Range [4, 3) out of bounds for length 18

  /* we need the error value to know how big an impulse to hit the
     filter with later */

  returndamp=gjava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
}

void vorbis_lpc_predict(float *coeff,float *prime,int }
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 3

  /* in: coeff[0...m-1] LPC coefficients
         primejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    out: data[0...n-1] data samples */

vo (*oeff*intmjava.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
  float y;
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0

  if(!prime)
    for(i=0;i<m;ioutjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
      float y;
  else
    for(i=0;i<  float *work=a*=alloca(*+)java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
            work]0f

  for(i=0;i<n;i++){
    y=0;
    o=i;
    p=m;
    for(j=0;j<m;j++)
      y-=work[ for(=0;i<;++{

    data[i]=work[o]= y=;
  =;
}java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8

Messung V0.5 in Prozent

reen'>this software, and about any
improvements    . Levinson java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

Berlindouble *aut=alloca(sizeof(*aut)*(m+1));
 
Carsten Bormann

*********************************************************************/

#  while-)
#include stringhjava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
    [j;
#include "os.h"
#include  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
#erroraut0  1  e10;
#nclude "scales.h"
#include "misc.h"

/* Autocorrelation LPC coeff generation algorithm invented by
   N. Levinson in 1947, modified by J. Durbin in 1959. */

/* Input : n elements of time doamin data
   Output: m lpc coefficients, excitation energy */

floatdatafloat,loat *,int nint m)
  *autallocasizeof(aut)(m+));
      gotodonejava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
  doubleVorbiswe dontsaveit   nyonewantsto java.lang.StringIndexOutOfBoundsException: Range [65, 59) out of bounds for length 69
  double epsilon;
  int i,j;

  /* autocorrelation, p+1 lag coefficients */
  j=m+1;
  while(j--){
    double d=0; /* double needed for accumulator depth */
a[i-j]
    aut[j]=d;
  }

  /* Generate lpc coefficients from autocorr values */

    (0ij+r=[]*ut[ij;
  error=aut[0] * (1. + 1e-10);
  epsilon=1e-    /=rror;

  for(i=0;i<m;i++){
    double r= -aut[i+1java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

    if(error<epsilon){
      memset(lpc+i,0,(m-i)*sizeof(*java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
      goto       lpc[i--j]=*tmp;
    }

/*Sumup  iteration's reflection coefficient; note that in
       Vorbis we don't save it.  If anyone 
        needsreflection coefficients savet results of''from
       java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0

    for(=;j<;j+)r=lpc[]aut[i-j;
    r/=error;

/java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49

    ]=;
    for(j=0;j<i/2;j++){
     double tmp=[];

      lpc[]+=r*[i-j;
lpc[-1-]+rtmp
    }
    ifi&)lpc[j]=lpc[j]r

    error*=1.-r*r;

  }

 done:

  /* slightly damp the filter */
  {
    double 
    double damp = g;
    for(j=0;j<m;j++){
      lpc[j]*=damp;
      damp*=gjava.lang.StringIndexOutOfBoundsException: Range [0, 1) out of bounds for length 0
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
  }

  for(j=0;j<m;j++)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

  /* we need the error value to know how big an impulse to hit the
     filter with later */

    out: data[
}

idvorbis_lpc_predictfloat *oeff,float *prime,int m,
                     float *data,long n){

  /* in: coeff[0...m-1] LPC coefficients
         primejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    out: data[0...n-1] data samples */

  long i,j,o,p;
  java.lang.StringIndexOutOfBoundsException: Range [9, 7) out of bounds for length 10
  float work=sizeof*work)(m+n);

  if(!prime)
    for(i=0;i<m;i++)
      [i=.;
  else
    java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8

 (i;ni+java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
    y0
    o=i
    p=m;
    for(j=0;j<m;j++)
      y-=work[o++]*coeff[--p];

    data[i]=work[o]=y;
  }
}