Remove FDK-AAC

1 files changed, 0 insertions, 812 deletions

diff --git a/libSBRdec/src/sbrdec_freq_sca.cpp b/libSBRdec/src/sbrdec_freq_sca.cpp
deleted file mode 100644
index 8adfbb1..0000000
--- a/libSBRdec/src/sbrdec_freq_sca.cpp
+++ /dev/null
@@ -1,812 +0,0 @@
-
-/* -----------------------------------------------------------------------------------------------------------
-Software License for The Fraunhofer FDK AAC Codec Library for Android
-
-© Copyright  1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
-  All rights reserved.
-
- 1.    INTRODUCTION
-The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
-the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
-This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
-
-AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
-audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
-independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
-of the MPEG specifications.
-
-Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
-may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
-individually for the purpose of encoding or decoding bit streams in products that are compliant with
-the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
-these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
-software may already be covered under those patent licenses when it is used for those licensed purposes only.
-
-Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
-are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
-applications information and documentation.
-
-2.    COPYRIGHT LICENSE
-
-Redistribution and use in source and binary forms, with or without modification, are permitted without
-payment of copyright license fees provided that you satisfy the following conditions:
-
-You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
-your modifications thereto in source code form.
-
-You must retain the complete text of this software license in the documentation and/or other materials
-provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
-You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
-modifications thereto to recipients of copies in binary form.
-
-The name of Fraunhofer may not be used to endorse or promote products derived from this library without
-prior written permission.
-
-You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
-software or your modifications thereto.
-
-Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
-and the date of any change. For modified versions of the FDK AAC Codec, the term
-"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
-"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
-
-3.    NO PATENT LICENSE
-
-NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
-ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
-respect to this software.
-
-You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
-by appropriate patent licenses.
-
-4.    DISCLAIMER
-
-This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
-"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
-of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
-including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
-or business interruption, however caused and on any theory of liability, whether in contract, strict
-liability, or tort (including negligence), arising in any way out of the use of this software, even if
-advised of the possibility of such damage.
-
-5.    CONTACT INFORMATION
-
-Fraunhofer Institute for Integrated Circuits IIS
-Attention: Audio and Multimedia Departments - FDK AAC LL
-Am Wolfsmantel 33
-91058 Erlangen, Germany
-
-www.iis.fraunhofer.de/amm
-amm-info@iis.fraunhofer.de
------------------------------------------------------------------------------------------------------------ */
-
-/*!
-  \file
-  \brief  Frequency scale calculation  
-*/
-
-#include "sbrdec_freq_sca.h"
-
-#include "transcendent.h"
-#include "sbr_rom.h"
-#include "env_extr.h"
-
-#include "genericStds.h"      /* need log() for debug-code only */
-
-#define MAX_OCTAVE         29
-#define MAX_SECOND_REGION  50
-
-
-static int  numberOfBands(FIXP_SGL bpo_div16, int start, int stop, int warpFlag);
-static void CalcBands(UCHAR * diff, UCHAR start, UCHAR stop, UCHAR num_bands);
-static SBR_ERROR modifyBands(UCHAR max_band, UCHAR * diff, UCHAR length);
-static void cumSum(UCHAR start_value, UCHAR* diff, UCHAR length, UCHAR *start_adress);
-
-
-
-/*!
-  \brief     Retrieve QMF-band where the SBR range starts
-
-  Convert startFreq which was read from the bitstream into a
-  QMF-channel number.
-
-  \return  Number of start band
-*/
-static UCHAR
-getStartBand(UINT   fs,               /*!< Output sampling frequency */
-             UCHAR  startFreq,        /*!< Index to table of possible start bands */
-             UINT   headerDataFlags)  /*!< Info to SBR mode */
-{
-  INT  band;
-  UINT fsMapped;
-
-    fsMapped = fs;
-
-  switch (fsMapped) {
-    case 96000:
-    case 88200:
-      band = FDK_sbrDecoder_sbr_start_freq_88[startFreq];
-      break;
-    case 64000:
-      band = FDK_sbrDecoder_sbr_start_freq_64[startFreq];
-      break;
-    case 48000:
-      band = FDK_sbrDecoder_sbr_start_freq_48[startFreq];
-      break;
-    case 44100:
-      band = FDK_sbrDecoder_sbr_start_freq_44[startFreq];
-      break;
-    case 32000:
-      band = FDK_sbrDecoder_sbr_start_freq_32[startFreq];
-      break;
-    case 24000:
-      band = FDK_sbrDecoder_sbr_start_freq_24[startFreq];
-      break;
-    case 22050:
-      band = FDK_sbrDecoder_sbr_start_freq_22[startFreq];
-      break;
-    case 16000:
-      band = FDK_sbrDecoder_sbr_start_freq_16[startFreq];
-      break;
-    default:
-      band = 255;
-  }
-
-  return band;
-}
-
-
-/*!
-  \brief     Retrieve QMF-band where the SBR range starts
-
-  Convert startFreq which was read from the bitstream into a
-  QMF-channel number.
-
-  \return  Number of start band
-*/
-static UCHAR
-getStopBand(UINT   fs,               /*!< Output sampling frequency */
-            UCHAR  stopFreq,         /*!< Index to table of possible start bands */
-            UINT   headerDataFlags,  /*!< Info to SBR mode */
-            UCHAR  k0)               /*!< Start freq index */
-{
-  UCHAR k2;
-
-  if (stopFreq < 14) {
-    INT    stopMin;
-    UCHAR  diff_tot[MAX_OCTAVE + MAX_SECOND_REGION];
-    UCHAR *diff0 = diff_tot;
-    UCHAR *diff1 = diff_tot+MAX_OCTAVE;
-
-    if (fs < 32000) {
-      stopMin = (((2*6000*2*(64)) / fs) + 1) >> 1;
-    }
-    else {
-      if (fs < 64000) {
-        stopMin = (((2*8000*2*(64)) / fs) + 1) >> 1;
-      }
-      else {
-        stopMin = (((2*10000*2*(64)) / fs) + 1) >> 1;
-      }
-    }
-
-    /*
-      Choose a stop band between k1 and 64 depending on stopFreq (0..13),
-      based on a logarithmic scale.
-      The vectors diff0 and diff1 are used temporarily here.
-    */
-    CalcBands( diff0, stopMin, 64, 13);
-    shellsort( diff0, 13);
-    cumSum(stopMin, diff0, 13, diff1);
-    k2 = diff1[stopFreq];
-  }
-  else if (stopFreq==14)
-    k2 = 2*k0;
-  else
-    k2 = 3*k0;
-
-  /* Limit to Nyquist */
-  if (k2 > (64))
-    k2 = (64);
-
-
-  /* Range checks */
-  /* 1 <= difference <= 48; 1 <= fs <= 96000 */
-  if ( ((k2 - k0) > MAX_FREQ_COEFFS) || (k2 <= k0) ) {
-    return 255;
-  }
-
-  if (headerDataFlags & (SBRDEC_SYNTAX_USAC|SBRDEC_SYNTAX_RSVD50)) {
-    /* 1 <= difference <= 35; 42000 <= fs <= 96000 */
-    if ( (fs >= 42000) && ( (k2 - k0) > MAX_FREQ_COEFFS_FS44100 ) ) {
-      return 255;
-    }
-    /* 1 <= difference <= 32; 46009 <= fs <= 96000 */
-    if ( (fs >= 46009) && ( (k2 - k0) > MAX_FREQ_COEFFS_FS48000 ) ) {
-      return 255;
-    }
-  }
-  else {
-    /* 1 <= difference <= 35; fs == 44100 */
-    if ( (fs == 44100) && ( (k2 - k0) > MAX_FREQ_COEFFS_FS44100 ) ) {
-      return 255;
-    }
-    /* 1 <= difference <= 32; 48000 <= fs <= 96000 */
-    if ( (fs >= 48000) && ( (k2 - k0) > MAX_FREQ_COEFFS_FS48000 ) ) {
-      return 255;
-    }
-  }
-
-  return k2;
-}
-
-
-/*!
-  \brief     Generates master frequency tables
-
-  Frequency tables are calculated according to the selected domain
-  (linear/logarithmic) and granularity.
-  IEC 14496-3 4.6.18.3.2.1
-
-  \return  errorCode, 0 if successful
-*/
-SBR_ERROR
-sbrdecUpdateFreqScale(UCHAR * v_k_master,    /*!< Master table to be created */
-                      UCHAR *numMaster,      /*!< Number of entries in master table */
-                      UINT   fs,             /*!< SBR working sampling rate */
-                      HANDLE_SBR_HEADER_DATA hHeaderData, /*!< Control data from bitstream */
-                      UINT flags)
-{
-  FIXP_SGL bpo_div16;        /* bands_per_octave divided by 16 */
-  INT      dk=0;
-
-  /* Internal variables */
-  UCHAR  k0, k2, i;
-  UCHAR  num_bands0 = 0;
-  UCHAR  num_bands1 = 0;
-  UCHAR  diff_tot[MAX_OCTAVE + MAX_SECOND_REGION];
-  UCHAR *diff0 = diff_tot;
-  UCHAR *diff1 = diff_tot+MAX_OCTAVE;
-  INT    k2_achived;
-  INT    k2_diff;
-  INT    incr=0;
-
-  /*
-    Determine start band
-  */
-  k0 = getStartBand(fs, hHeaderData->bs_data.startFreq, flags);
-  if (k0 == 255) {
-    return SBRDEC_UNSUPPORTED_CONFIG;
-  }
-
-  /*
-    Determine stop band
-  */
-  k2 = getStopBand(fs, hHeaderData->bs_data.stopFreq, flags, k0);
-  if (k2 == 255) {
-    return SBRDEC_UNSUPPORTED_CONFIG;
-  }
-
-  if(hHeaderData->bs_data.freqScale>0) { /* Bark */
-    INT k1;
-
-    if(hHeaderData->bs_data.freqScale==1) {
-      bpo_div16 = FL2FXCONST_SGL(12.0f/16.0f);
-    }
-    else if(hHeaderData->bs_data.freqScale==2) {
-      bpo_div16 = FL2FXCONST_SGL(10.0f/16.0f);
-    }
-    else {
-      bpo_div16 =  FL2FXCONST_SGL(8.0f/16.0f);
-    }
-
-
-    if( 1000 * k2 > 2245 * k0 ) { /* Two or more regions */
-      k1 = 2*k0;
-
-      num_bands0 = numberOfBands(bpo_div16, k0, k1, 0);
-      num_bands1 = numberOfBands(bpo_div16, k1, k2, hHeaderData->bs_data.alterScale );
-      if ( num_bands0 < 1) {
-        return SBRDEC_UNSUPPORTED_CONFIG;
-      }
-      if ( num_bands1 < 1 ) {
-        return SBRDEC_UNSUPPORTED_CONFIG;
-      }
-
-      CalcBands(diff0, k0, k1, num_bands0);
-      shellsort( diff0, num_bands0);
-      if (diff0[0] == 0) {
-#ifdef DEBUG_TOOLS
-#endif
-        return SBRDEC_UNSUPPORTED_CONFIG;
-      }
-
-      cumSum(k0, diff0, num_bands0, v_k_master);
-
-      CalcBands(diff1, k1, k2, num_bands1);
-      shellsort( diff1, num_bands1);
-      if(diff0[num_bands0-1] > diff1[0]) {
-        SBR_ERROR err;
-
-        err = modifyBands(diff0[num_bands0-1],diff1, num_bands1);
-        if (err)
-          return SBRDEC_UNSUPPORTED_CONFIG;
-      }
-
-      /* Add 2nd region */
-      cumSum(k1, diff1, num_bands1, &v_k_master[num_bands0]);
-      *numMaster = num_bands0 + num_bands1;     /* Output nr of bands */
-
-    }
-    else { /* Only one region */
-      k1=k2;
-
-      num_bands0 = numberOfBands(bpo_div16, k0, k1, 0);
-      if ( num_bands0 < 1) {
-        return SBRDEC_UNSUPPORTED_CONFIG;
-      }
-      CalcBands(diff0, k0, k1, num_bands0);
-      shellsort(diff0, num_bands0);
-      if (diff0[0] == 0) {
-#ifdef DEBUG_TOOLS
-#endif
-        return SBRDEC_UNSUPPORTED_CONFIG;
-      }
-
-      cumSum(k0, diff0, num_bands0, v_k_master);
-      *numMaster = num_bands0;        /* Output nr of bands */
-
-    }
-  }
-  else { /* Linear mode */
-     if (hHeaderData->bs_data.alterScale==0) {
-        dk = 1;
-        /* FLOOR to get to few number of bands (next lower even number) */
-        num_bands0 = (k2 - k0) & 254;
-      } else {
-        dk = 2;
-        num_bands0 = ( ((k2 - k0) >> 1) + 1 ) & 254; /* ROUND to the closest fit */
-      }
-
-      if (num_bands0 < 1) {
-        return SBRDEC_UNSUPPORTED_CONFIG;
-        /* We must return already here because 'i' can become negative below. */
-      }
-
-      k2_achived = k0 + num_bands0*dk;
-      k2_diff = k2 - k2_achived;
-
-      for(i=0;i<num_bands0;i++)
-        diff_tot[i] = dk;
-
-      /* If linear scale wasn't achieved */
-      /* and we got too wide SBR area */
-      if (k2_diff < 0) {
-          incr = 1;
-          i = 0;
-      }
-
-      /* If linear scale wasn't achieved */
-      /* and we got too small SBR area */
-      if (k2_diff > 0) {
-          incr = -1;
-          i = num_bands0-1;
-      }
-
-      /* Adjust diff vector to get sepc. SBR range */
-      while (k2_diff != 0) {
-        diff_tot[i] = diff_tot[i] - incr;
-        i = i + incr;
-        k2_diff = k2_diff + incr;
-      }
-
-      cumSum(k0, diff_tot, num_bands0, v_k_master);/* cumsum */
-    *numMaster = num_bands0;  /* Output nr of bands */
-  }
-
-  if (*numMaster < 1) {
-    return SBRDEC_UNSUPPORTED_CONFIG;
-  }
-
-
-  /*
-    Print out the calculated table
-  */
-
-  return SBRDEC_OK;
-}
-
-
-/*!
-  \brief     Calculate frequency ratio of one SBR band
-
-  All SBR bands should span a constant frequency range in the logarithmic
-  domain. This function calculates the ratio of any SBR band's upper and lower
-  frequency.
-
- \return    num_band-th root of k_start/k_stop
-*/
-static FIXP_SGL calcFactorPerBand(int k_start, int k_stop, int num_bands)
-{
-/* Scaled bandfactor and step 1 bit right to avoid overflow
- * use double data type */
-  FIXP_DBL bandfactor = FL2FXCONST_DBL(0.25f); /* Start value */
-  FIXP_DBL step = FL2FXCONST_DBL(0.125f);      /* Initial increment for factor */
-
-  int    direction = 1;
-
-/* Because saturation can't be done in INT IIS,
- * changed start and stop data type from FIXP_SGL to FIXP_DBL */
-  FIXP_DBL start = k_start << (DFRACT_BITS-8);
-  FIXP_DBL stop = k_stop << (DFRACT_BITS-8);
-
-  FIXP_DBL temp;
-
-  int   j, i=0;
-
-  while ( step > FL2FXCONST_DBL(0.0f)) {
-    i++;
-    temp = stop;
-
-    /* Calculate temp^num_bands: */
-    for (j=0; j<num_bands; j++)
-      //temp = fMult(temp,bandfactor);
-      temp = fMultDiv2(temp,bandfactor)<<2;
-
-    if (temp<start) { /* Factor too strong, make it weaker */
-      if (direction == 0)
-        /* Halfen step. Right shift is not done as fract because otherwise the
-           lowest bit cannot be cleared due to rounding */
-        step = (FIXP_DBL)((LONG)step >> 1);
-      direction = 1;
-      bandfactor = bandfactor + step;
-    }
-    else {  /* Factor is too weak: make it stronger */
-      if (direction == 1)
-        step = (FIXP_DBL)((LONG)step >> 1);
-      direction = 0;
-      bandfactor = bandfactor - step;
-    }
-
-    if (i>100) {
-      step = FL2FXCONST_DBL(0.0f);
-    }
-  }
-  return FX_DBL2FX_SGL(bandfactor<<1);
-}
-
-
-/*!
-  \brief     Calculate number of SBR bands between start and stop band
-
-  Given the number of bands per octave, this function calculates how many
-  bands fit in the given frequency range.
-  When the warpFlag is set, the 'band density' is decreased by a factor
-  of 1/1.3
-
-  \return    number of bands
-*/
-static int
-numberOfBands(FIXP_SGL bpo_div16, /*!< Input: number of bands per octave divided by 16 */
-              int    start,     /*!< First QMF band of SBR frequency range */
-              int    stop,      /*!< Last QMF band of SBR frequency range + 1 */
-              int    warpFlag)  /*!< Stretching flag */
-{
-  FIXP_SGL num_bands_div128;
-  int    num_bands;
-
-  num_bands_div128 = FX_DBL2FX_SGL(fMult(FDK_getNumOctavesDiv8(start,stop),bpo_div16));
-
-  if (warpFlag) {
-    /* Apply the warp factor of 1.3 to get wider bands.  We use a value
-       of 32768/25200 instead of the exact value to avoid critical cases
-       of rounding.
-    */
-    num_bands_div128 = FX_DBL2FX_SGL(fMult(num_bands_div128, FL2FXCONST_SGL(25200.0/32768.0)));
-  }
-
-  /* add scaled 1 for rounding to even numbers: */
-  num_bands_div128 = num_bands_div128 + FL2FXCONST_SGL( 1.0f/128.0f );
-  /* scale back to right aligned integer and double the value: */
-  num_bands = 2 * ((LONG)num_bands_div128 >> (FRACT_BITS - 7));
-
-  return(num_bands);
-}
-
-
-/*!
-  \brief     Calculate width of SBR bands
-
-  Given the desired number of bands within the SBR frequency range,
-  this function calculates the width of each SBR band in QMF channels.
-  The bands get wider from start to stop (bark scale).
-*/
-static void
-CalcBands(UCHAR * diff,    /*!< Vector of widths to be calculated */
-          UCHAR start,     /*!< Lower end of subband range */
-          UCHAR stop,      /*!< Upper end of subband range */
-          UCHAR num_bands) /*!< Desired number of bands */
-{
-  int i;
-  int previous;
-  int current;
-  FIXP_SGL exact, temp;
-  FIXP_SGL bandfactor = calcFactorPerBand(start, stop, num_bands);
-
-  previous = stop; /* Start with highest QMF channel */
-  exact = (FIXP_SGL)(stop << (FRACT_BITS-8)); /* Shift left to gain some accuracy */
-
-  for(i=num_bands-1; i>=0; i--) {
-    /* Calculate border of next lower sbr band */
-    exact = FX_DBL2FX_SGL(fMult(exact,bandfactor));
-
-    /* Add scaled 0.5 for rounding:
-       We use a value 128/256 instead of 0.5 to avoid some critical cases of rounding. */
-    temp = exact +  FL2FXCONST_SGL(128.0/32768.0);
-
-    /* scale back to right alinged integer: */
-    current = (LONG)temp >> (FRACT_BITS-8);
-
-    /* Save width of band i */
-    diff[i] = previous - current;
-    previous = current;
-  }
-}
-
-
-/*!
-  \brief     Calculate cumulated sum vector from delta vector
-*/
-static void
-cumSum(UCHAR start_value, UCHAR* diff, UCHAR length, UCHAR *start_adress)
-{
-  int i;
-  start_adress[0]=start_value;
-  for(i=1; i<=length; i++)
-    start_adress[i] = start_adress[i-1] + diff[i-1];
-}
-
-
-/*!
-  \brief     Adapt width of frequency bands in the second region
-
-  If SBR spans more than 2 octaves, the upper part of a bark-frequency-scale
-  is calculated separately. This function tries to avoid that the second region
-  starts with a band smaller than the highest band of the first region.
-*/
-static SBR_ERROR
-modifyBands(UCHAR max_band_previous, UCHAR * diff, UCHAR length)
-{
-  int change = max_band_previous - diff[0];
-
-  /* Limit the change so that the last band cannot get narrower than the first one */
-  if ( change > (diff[length-1]-diff[0])>>1 )
-    change = (diff[length-1]-diff[0])>>1;
-
-  diff[0] += change;
-  diff[length-1] -= change;
-  shellsort(diff, length);
-
-  return SBRDEC_OK;
-}
-
-
-/*!
-  \brief   Update high resolution frequency band table
-*/
-static void
-sbrdecUpdateHiRes(UCHAR * h_hires,
-                  UCHAR * num_hires,
-                  UCHAR * v_k_master,
-                  UCHAR num_bands,
-                  UCHAR xover_band)
-{
-  UCHAR i;
-
-  *num_hires = num_bands-xover_band;
-
-  for(i=xover_band; i<=num_bands; i++) {
-    h_hires[i-xover_band] = v_k_master[i];
-  }
-}
-
-
-/*!
-  \brief  Build low resolution table out of high resolution table
-*/
-static void
-sbrdecUpdateLoRes(UCHAR * h_lores,
-                  UCHAR * num_lores,
-                  UCHAR * h_hires,
-                  UCHAR num_hires)
-{
-  UCHAR i;
-
-  if( (num_hires & 1) == 0) {
-    /* If even number of hires bands */
-    *num_lores = num_hires >> 1;
-    /* Use every second lores=hires[0,2,4...] */
-    for(i=0; i<=*num_lores; i++)
-      h_lores[i] = h_hires[i*2];
-  }
-  else {
-    /* Odd number of hires, which means xover is odd */
-    *num_lores = (num_hires+1) >> 1;
-    /* Use lores=hires[0,1,3,5 ...] */
-    h_lores[0] = h_hires[0];
-    for(i=1; i<=*num_lores; i++) {
-      h_lores[i] = h_hires[i*2-1];
-    }
-  }
-}
-
-
-/*!
-  \brief   Derive a low-resolution frequency-table from the master frequency table
-*/
-void
-sbrdecDownSampleLoRes(UCHAR *v_result,
-                      UCHAR num_result,
-                      UCHAR *freqBandTableRef,
-                      UCHAR num_Ref)
-{
-  int step;
-  int i,j;
-  int org_length,result_length;
-  int v_index[MAX_FREQ_COEFFS>>1];
-
-  /* init */
-  org_length = num_Ref;
-  result_length = num_result;
-
-  v_index[0] = 0;   /* Always use left border */
-  i=0;
-  while(org_length > 0) {
-    /* Create downsample vector */
-    i++;
-    step = org_length / result_length;
-    org_length = org_length - step;
-    result_length--;
-    v_index[i] = v_index[i-1] + step;
-  }
-
-  for(j=0;j<=i;j++) {
-    /* Use downsample vector to index LoResolution vector */
-    v_result[j]=freqBandTableRef[v_index[j]];
-  }
-
-}
-
-
-/*!
-  \brief   Sorting routine
-*/
-void shellsort(UCHAR *in, UCHAR n)
-{
-
-  int i, j, v, w;
-  int inc = 1;
-
-  do
-    inc = 3 * inc + 1;
-  while (inc <= n);
-
-  do {
-    inc = inc / 3;
-    for (i = inc; i < n; i++) {
-      v = in[i];
-      j = i;
-      while ((w=in[j-inc]) > v) {
-        in[j] = w;
-        j -= inc;
-        if (j < inc)
-          break;
-      }
-      in[j] = v;
-    }
-  } while (inc > 1);
-
-}
-
-
-
-/*!
-  \brief   Reset frequency band tables
-  \return  errorCode, 0 if successful
-*/
-SBR_ERROR
-resetFreqBandTables(HANDLE_SBR_HEADER_DATA hHeaderData, const UINT flags)
-{
-  SBR_ERROR err = SBRDEC_OK;
-  int k2,kx, lsb, usb;
-  int     intTemp;
-  UCHAR    nBandsLo, nBandsHi;
-  HANDLE_FREQ_BAND_DATA hFreq = &hHeaderData->freqBandData;
-
-  /* Calculate master frequency function */
-  err = sbrdecUpdateFreqScale(hFreq->v_k_master,
-                              &hFreq->numMaster,
-                              hHeaderData->sbrProcSmplRate,
-                              hHeaderData,
-                              flags);
-
-  if ( err || (hHeaderData->bs_info.xover_band > hFreq->numMaster) ) {
-    return SBRDEC_UNSUPPORTED_CONFIG;
-  }
-
-  /* Derive Hiresolution from master frequency function */
-  sbrdecUpdateHiRes(hFreq->freqBandTable[1], &nBandsHi, hFreq->v_k_master, hFreq->numMaster, hHeaderData->bs_info.xover_band );
-  /* Derive Loresolution from Hiresolution */
-  sbrdecUpdateLoRes(hFreq->freqBandTable[0], &nBandsLo, hFreq->freqBandTable[1], nBandsHi);
-
-
-  hFreq->nSfb[0] = nBandsLo;
-  hFreq->nSfb[1] = nBandsHi;
-
-  /* Check index to freqBandTable[0] */
-  if ( !(nBandsLo > 0) || (nBandsLo > (MAX_FREQ_COEFFS>>1)) ) {
-    return SBRDEC_UNSUPPORTED_CONFIG;
-  }
-
-  lsb = hFreq->freqBandTable[0][0];
-  usb = hFreq->freqBandTable[0][nBandsLo];
-
-  /* Additional check for lsb */
-  if ( (lsb > (32)) || (lsb >= usb) ) {
-    return SBRDEC_UNSUPPORTED_CONFIG;
-  }
-
-
-  /* Calculate number of noise bands */
-
-  k2 = hFreq->freqBandTable[1][nBandsHi];
-  kx = hFreq->freqBandTable[1][0];
-
-  if (hHeaderData->bs_data.noise_bands == 0)
-  {
-    hFreq->nNfb = 1;
-  }
-  else /* Calculate no of noise bands 1,2 or 3 bands/octave */
-  {
-    /* Fetch number of octaves divided by 32 */
-    intTemp = (LONG)FDK_getNumOctavesDiv8(kx,k2) >> 2;
-
-    /* Integer-Multiplication with number of bands: */
-    intTemp = intTemp * hHeaderData->bs_data.noise_bands;
-
-    /* Add scaled 0.5 for rounding: */
-    intTemp = intTemp + (LONG)FL2FXCONST_SGL(0.5f/32.0f);
-
-    /* Convert to right-aligned integer: */
-    intTemp = intTemp >> (FRACT_BITS - 1 /*sign*/ - 5 /* rescale */);
-
-    /* Compare with float calculation */
-    FDK_ASSERT( intTemp ==  (int)((hHeaderData->bs_data.noise_bands * FDKlog( (float)k2/kx) / (float)(FDKlog(2.0)))+0.5) );
-
-    if( intTemp==0)
-      intTemp=1;
-
-    hFreq->nNfb = intTemp;
-  }
-
-  hFreq->nInvfBands = hFreq->nNfb;
-
-  if( hFreq->nNfb > MAX_NOISE_COEFFS ) {
-    return SBRDEC_UNSUPPORTED_CONFIG;
-  }
-
-  /* Get noise bands */
-  sbrdecDownSampleLoRes(hFreq->freqBandTableNoise,
-                        hFreq->nNfb,
-                        hFreq->freqBandTable[0],
-                        nBandsLo);
-
-
-
-
-  hFreq->lowSubband  = lsb;
-  hFreq->highSubband = usb;
-
-  return SBRDEC_OK;
-}