Remove FDK-AAC

1 files changed, 0 insertions, 701 deletions

diff --git a/libSBRenc/src/tran_det.cpp b/libSBRenc/src/tran_det.cpp
deleted file mode 100644
index 1e0a59f..0000000
--- a/libSBRenc/src/tran_det.cpp
+++ /dev/null
@@ -1,701 +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
------------------------------------------------------------------------------------------------------------ */
-
-#include "tran_det.h"
-
-#include "fram_gen.h"
-#include "sbr_ram.h"
-#include "sbr_misc.h"
-
-#include "genericStds.h"
-
-#define NORM_QMF_ENERGY 5.684341886080801486968994140625e-14 /* 2^-44 */
-
-/* static FIXP_DBL ABS_THRES = fixMax( FL2FXCONST_DBL(1.28e5 *  NORM_QMF_ENERGY), (FIXP_DBL)1)  Minimum threshold for detecting changes */
-#define ABS_THRES ((FIXP_DBL)16)
-
-/*******************************************************************************
- Functionname:  spectralChange
- *******************************************************************************
- \brief   Calculates a measure for the spectral change within the frame
-
- The function says how good it would be to split the frame at the given border
- position into 2 envelopes.
-
- The return value delta_sum is scaled with the factor 1/64
-
- \return  calculated value
-*******************************************************************************/
-static FIXP_DBL spectralChange(FIXP_DBL Energies[NUMBER_TIME_SLOTS_2304][MAX_FREQ_COEFFS],
-                               INT *scaleEnergies,
-                               FIXP_DBL EnergyTotal,
-                               INT nSfb,
-                               INT start,
-                               INT border,
-                               INT stop)
-{
-  INT i,j;
-  INT len1,len2;
-  FIXP_DBL delta,tmp0,tmp1,tmp2;
-  FIXP_DBL accu1,accu2,delta_sum,result;
-
-  FDK_ASSERT(scaleEnergies[0] >= 0);
-
-  /* equal for aac (would be not equal for mp3) */
-  len1 = border-start;
-  len2 = stop-border;
-
-  /* prefer borders near the middle of the frame */
-  FIXP_DBL   pos_weight;
-  pos_weight = FL2FXCONST_DBL(0.5f) - (len1*GetInvInt(len1+len2));
-  pos_weight = /*FL2FXCONST_DBL(1.0)*/ (FIXP_DBL)MAXVAL_DBL - (fMult(pos_weight, pos_weight)<<2);
-
-  delta_sum = FL2FXCONST_DBL(0.0f);
-
-  /* Sum up energies of all QMF-timeslots for both halfs */
-  for (j=0; j<nSfb; j++) {
-    #define NRG_SCALE  3
-    /* init with some energy to prevent division by zero
-       and to prevent splitting for very low levels */
-    accu1 = ((FL2FXCONST_DBL((1.0e6*NORM_QMF_ENERGY*8.0/32))) << fixMin(scaleEnergies[0],25))>>NRG_SCALE;  /* complex init for compare with original version */
-    accu2 = ((FL2FXCONST_DBL((1.0e6*NORM_QMF_ENERGY*8.0/32))) << fixMin(scaleEnergies[0],25))>>NRG_SCALE;  /* can be simplified in dsp implementation */
-
-    /* Sum up energies in first half */
-    for (i=start; i<border; i++) {
-      accu1 += (Energies[i][j]>>NRG_SCALE);
-    }
-
-    /* Sum up energies in second half */
-    for (i=border; i<stop; i++) {
-      accu2 += (Energies[i][j]>>NRG_SCALE);
-    }
-
-    /* Energy change in current band */
-    tmp0 = CalcLdData(accu2);
-    tmp1 = CalcLdData(accu1);
-    tmp2 = (tmp0 - tmp1 + CalcLdData(len1)-CalcLdData(len2));
-    delta = fixp_abs(fMult(tmp2, FL2FXCONST_DBL(0.6931471806f)));
-
-    /* Weighting with amplitude ratio of this band */
-    result = (EnergyTotal == FL2FXCONST_DBL(0.0f))
-            ? FL2FXCONST_DBL(0.f)
-            : FDKsbrEnc_LSI_divide_scale_fract( (accu1+accu2),
-                                      (EnergyTotal>>NRG_SCALE)+(FIXP_DBL)1,
-                                      (FIXP_DBL)MAXVAL_DBL >> fixMin(scaleEnergies[0],(DFRACT_BITS-1)) );
-
-    delta_sum += (FIXP_DBL)(fMult(sqrtFixp(result), delta));
-  }
-
-  return fMult(delta_sum, pos_weight);
-}
-
-
-/*******************************************************************************
- Functionname:  addLowbandEnergies
- *******************************************************************************
- \brief   Calculates total lowband energy
-
- The return value nrgTotal is scaled by the factor (1/32.0)
-
- \return  total energy in the lowband
-*******************************************************************************/
-static FIXP_DBL addLowbandEnergies(FIXP_DBL **Energies,
-                                   int       *scaleEnergies,
-                                   int        YBufferWriteOffset,
-                                   int        nrgSzShift,
-                                   int        tran_off,
-                                   UCHAR     *freqBandTable,
-                                   int        slots)
-{
-  FIXP_DBL nrgTotal;
-  FIXP_DBL accu1 = FL2FXCONST_DBL(0.0f);
-  FIXP_DBL accu2 = FL2FXCONST_DBL(0.0f);
-  int tran_offdiv2 = tran_off>>nrgSzShift;
-  int ts,k;
-
-  /* Sum up lowband energy from one frame at offset tran_off */
-  for (ts=tran_offdiv2; ts<YBufferWriteOffset; ts++) {
-    for (k = 0; k < freqBandTable[0]; k++) {
-      accu1 += Energies[ts][k] >> 6;
-    }
-  }
-  for (; ts<tran_offdiv2+(slots>>nrgSzShift); ts++) {
-    for (k = 0; k < freqBandTable[0]; k++) {
-      accu2 += Energies[ts][k] >> 6;
-    }
-  }
-
-  nrgTotal = ( (accu1 >> fixMin(scaleEnergies[0],(DFRACT_BITS-1)))
-           +   (accu2 >> fixMin(scaleEnergies[1],(DFRACT_BITS-1))) ) << (2);
-
-  return(nrgTotal);
-}
-
-
-/*******************************************************************************
- Functionname:  addHighbandEnergies
- *******************************************************************************
- \brief   Add highband energies
-
- Highband energies are mapped to an array with smaller dimension:
- Its time resolution is only 1 SBR-timeslot and its frequency resolution
- is 1 SBR-band. Therefore the data to be fed into the spectralChange
- function is reduced.
-
- The values EnergiesM are scaled by the factor (1/32.0) and scaleEnergies[0]
- The return value nrgTotal is scaled by the factor (1/32.0)
-
- \return  total energy in the highband
-*******************************************************************************/
-
-static FIXP_DBL addHighbandEnergies(FIXP_DBL **RESTRICT Energies, /*!< input */
-                                    INT       *scaleEnergies,
-                                    FIXP_DBL   EnergiesM[NUMBER_TIME_SLOTS_2304][MAX_FREQ_COEFFS], /*!< Combined output */
-                                    UCHAR     *RESTRICT freqBandTable,
-                                    INT        nSfb,
-                                    INT        sbrSlots,
-                                    INT        timeStep)
-{
-  INT i,j,k,slotIn,slotOut,scale;
-  INT li,ui;
-  FIXP_DBL nrgTotal;
-  FIXP_DBL accu = FL2FXCONST_DBL(0.0f);
-
-  /* Combine QMF-timeslots to SBR-timeslots,
-     combine QMF-bands to SBR-bands,
-     combine Left and Right channel */
-  for (slotOut=0; slotOut<sbrSlots; slotOut++) {
-    slotIn = 2*slotOut;
-
-    for (j=0; j<nSfb; j++) {
-      accu = FL2FXCONST_DBL(0.0f);
-
-      li = freqBandTable[j];
-      ui = freqBandTable[j + 1];
-
-      for (k=li; k<ui; k++) {
-        for (i=0; i<timeStep; i++) {
-         accu += (Energies[(slotIn+i)>>1][k] >> 5);
-        }
-      }
-      EnergiesM[slotOut][j] = accu;
-    }
-  }
-
-  scale = fixMin(8,scaleEnergies[0]);      /* scale energies down before add up */
-
-  if ((scaleEnergies[0]-1) > (DFRACT_BITS-1) )
-    nrgTotal = FL2FXCONST_DBL(0.0f);
-  else {
-    /* Now add all energies */
-    accu = FL2FXCONST_DBL(0.0f);
-    for (slotOut=0; slotOut<sbrSlots; slotOut++) {
-      for (j=0; j<nSfb; j++) {
-        accu += (EnergiesM[slotOut][j] >> scale);
-      }
-    }
-    nrgTotal = accu >> (scaleEnergies[0]-scale);
-  }
-
-  return(nrgTotal);
-}
-
-
-/*******************************************************************************
- Functionname:  FDKsbrEnc_frameSplitter
- *******************************************************************************
- \brief   Decides if a FIXFIX-frame shall be splitted into 2 envelopes
-
- If no transient has been detected before, the frame can still be splitted
- into 2 envelopes.
-*******************************************************************************/
-void
-FDKsbrEnc_frameSplitter(FIXP_DBL **Energies,
-                        INT *scaleEnergies,
-                        HANDLE_SBR_TRANSIENT_DETECTOR h_sbrTransientDetector,
-                        UCHAR *freqBandTable,
-                        UCHAR *tran_vector,
-                        int YBufferWriteOffset,
-                        int YBufferSzShift,
-                        int nSfb,
-                        int timeStep,
-                        int no_cols)
-{
-  if (tran_vector[1]==0) /* no transient was detected */
-  {
-    FIXP_DBL delta;
-    FIXP_DBL EnergiesM[NUMBER_TIME_SLOTS_2304][MAX_FREQ_COEFFS];
-    FIXP_DBL EnergyTotal,newLowbandEnergy,newHighbandEnergy;
-    INT border;
-    INT sbrSlots = fMultI(GetInvInt(timeStep),no_cols);
-
-    FDK_ASSERT( sbrSlots * timeStep == no_cols );
-
-    /*
-      Get Lowband-energy over a range of 2 frames (Look half a frame back and ahead).
-    */
-    newLowbandEnergy = addLowbandEnergies(Energies,
-                                          scaleEnergies,
-                                          YBufferWriteOffset,
-                                          YBufferSzShift,
-                                          h_sbrTransientDetector->tran_off,
-                                          freqBandTable,
-                                          no_cols);
-
-    newHighbandEnergy = addHighbandEnergies(Energies,
-                                            scaleEnergies,
-                                            EnergiesM,
-                                            freqBandTable,
-                                            nSfb,
-                                            sbrSlots,
-                                            timeStep);
-
-    if ( h_sbrTransientDetector->frameShift != 0 ) {
-      if (tran_vector[1]==0)
-        tran_vector[0] = 0;
-    } else
-    {
-      /* prevLowBandEnergy: Corresponds to 1 frame, starting with half a frame look-behind
-         newLowbandEnergy:  Corresponds to 1 frame, starting in the middle of the current frame */
-      EnergyTotal = (newLowbandEnergy + h_sbrTransientDetector->prevLowBandEnergy) >> 1;
-      EnergyTotal += newHighbandEnergy;
-      /* The below border should specify the same position as the middle border
-         of a FIXFIX-frame with 2 envelopes. */
-      border = (sbrSlots+1) >> 1;
-
-      delta = spectralChange(EnergiesM,
-                             scaleEnergies,
-                             EnergyTotal,
-                             nSfb,
-                             0,
-                             border,
-                             sbrSlots);
-
-      if (delta > (h_sbrTransientDetector->split_thr >> LD_DATA_SHIFT)) /* delta scaled by 1/64 */
-        tran_vector[0] = 1; /* Set flag for splitting */
-      else
-        tran_vector[0] = 0;
-    }
-
-    /* Update prevLowBandEnergy */
-    h_sbrTransientDetector->prevLowBandEnergy = newLowbandEnergy;
-    h_sbrTransientDetector->prevHighBandEnergy = newHighbandEnergy;
-  }
-}
-
-/*
- * Calculate transient energy threshold for each QMF band
- */
-static void
-calculateThresholds(FIXP_DBL **RESTRICT Energies,
-                    INT       *RESTRICT scaleEnergies,
-                    FIXP_DBL  *RESTRICT thresholds,
-                    int        YBufferWriteOffset,
-                    int        YBufferSzShift,
-                    int        noCols,
-                    int        noRows,
-                    int        tran_off)
-{
-  FIXP_DBL mean_val,std_val,temp;
-  FIXP_DBL i_noCols;
-  FIXP_DBL i_noCols1;
-  FIXP_DBL accu,accu0,accu1;
-  int scaleFactor0,scaleFactor1,commonScale;
-  int i,j;
-
-  i_noCols  = GetInvInt(noCols + tran_off ) << YBufferSzShift;
-  i_noCols1 = GetInvInt(noCols + tran_off - 1) << YBufferSzShift;
-
-  /* calc minimum scale of energies of previous and current frame */
-  commonScale = fixMin(scaleEnergies[0],scaleEnergies[1]);
-
-  /* calc scalefactors to adapt energies to common scale */
-  scaleFactor0 = fixMin((scaleEnergies[0]-commonScale), (DFRACT_BITS-1));
-  scaleFactor1 = fixMin((scaleEnergies[1]-commonScale), (DFRACT_BITS-1));
-
-  FDK_ASSERT((scaleFactor0 >= 0) && (scaleFactor1 >= 0));
-
-  /* calculate standard deviation in every subband */
-  for (i=0; i<noRows; i++)
-  {
-    int startEnergy = (tran_off>>YBufferSzShift);
-    int endEnergy = ((noCols>>YBufferSzShift)+tran_off);
-    int shift;
-
-    /* calculate mean value over decimated energy values (downsampled by 2). */
-    accu0 = accu1 = FL2FXCONST_DBL(0.0f);
-
-    for (j=startEnergy; j<YBufferWriteOffset; j++)
-      accu0 += fMult(Energies[j][i], i_noCols);
-    for (; j<endEnergy; j++)
-      accu1 += fMult(Energies[j][i], i_noCols);
-
-    mean_val = (accu0 >> scaleFactor0) + (accu1 >> scaleFactor1);  /* average */
-    shift    = fixMax(0,CountLeadingBits(mean_val)-6);             /* -6 to keep room for accumulating upto N = 24 values */
-
-    /* calculate standard deviation */
-    accu = FL2FXCONST_DBL(0.0f);
-
-    /* summe { ((mean_val-nrg)^2) * i_noCols1 } */
-    for (j=startEnergy; j<YBufferWriteOffset; j++) {
-      temp = ((FIXP_DBL)mean_val - ((FIXP_DBL)Energies[j][i] >> scaleFactor0))<<shift;
-      temp = fPow2(temp);
-      temp = fMult(temp, i_noCols1);
-      accu += temp;
-    }
-    for (; j<endEnergy; j++) {
-      temp = ((FIXP_DBL)mean_val - ((FIXP_DBL)Energies[j][i] >> scaleFactor1))<<shift;
-      temp = fPow2(temp);
-      temp = fMult(temp, i_noCols1);
-      accu += temp;
-    }
-
-    std_val = sqrtFixp(accu)>>shift;     /* standard deviation */
-
-    /*
-    Take new threshold as average of calculated standard deviation ratio
-    and old threshold if greater than absolute threshold
-    */
-    temp = ( commonScale<=(DFRACT_BITS-1) )
-            ? fMult(FL2FXCONST_DBL(0.66f), thresholds[i]) + (fMult(FL2FXCONST_DBL(0.34f), std_val) >> commonScale)
-            : (FIXP_DBL) 0;
-
-    thresholds[i] = fixMax(ABS_THRES,temp);
-
-    FDK_ASSERT(commonScale >= 0);
-  }
-}
-
-/*
- * Calculate transient levels for each QMF time slot.
- */
-static void
-extractTransientCandidates(FIXP_DBL  **RESTRICT Energies,
-                           INT        *RESTRICT scaleEnergies,
-                           FIXP_DBL   *RESTRICT thresholds,
-                           FIXP_DBL   *RESTRICT transients,
-                           int         YBufferWriteOffset,
-                           int         YBufferSzShift,
-                           int         noCols,
-                           int         start_band,
-                           int         stop_band,
-                           int         tran_off,
-                           int         addPrevSamples)
-{
-  FIXP_DBL i_thres;
-  C_ALLOC_SCRATCH_START(EnergiesTemp, FIXP_DBL, 2*QMF_MAX_TIME_SLOTS);
-  FIXP_DBL *RESTRICT pEnergiesTemp = EnergiesTemp;
-  int tmpScaleEnergies0, tmpScaleEnergies1;
-  int endCond;
-  int startEnerg,endEnerg;
-  int i,j,jIndex,jpBM;
-
-  tmpScaleEnergies0 = scaleEnergies[0];
-  tmpScaleEnergies1 = scaleEnergies[1];
-
-  /* Scale value for first energies, upto YBufferWriteOffset */
-  tmpScaleEnergies0 = fixMin(tmpScaleEnergies0, MAX_SHIFT_DBL);
-  /* Scale value for first energies, from YBufferWriteOffset upwards */
-  tmpScaleEnergies1 = fixMin(tmpScaleEnergies1, MAX_SHIFT_DBL);
-
-  FDK_ASSERT((tmpScaleEnergies0 >= 0) && (tmpScaleEnergies1 >= 0));
-
-  /* Keep addPrevSamples extra previous transient candidates. */
-  FDKmemmove(transients, transients + noCols - addPrevSamples, (tran_off+addPrevSamples) * sizeof (FIXP_DBL));
-  FDKmemclear(transients + tran_off + addPrevSamples, noCols * sizeof (FIXP_DBL));
-
-  endCond = noCols; /* Amount of new transient values to be calculated. */
-  startEnerg = (tran_off-3)>>YBufferSzShift; /* >>YBufferSzShift because of amount of energy values. -3 because of neighbors being watched. */
-  endEnerg = ((noCols+ (YBufferWriteOffset<<YBufferSzShift))-1)>>YBufferSzShift; /* YBufferSzShift shifts because of half energy values. */
-
-  /* Compute differential values with two different weightings in every subband */
-  for (i=start_band; i<stop_band; i++)
-  {
-    FIXP_DBL thres = thresholds[i];
-
-    if((LONG)thresholds[i]>=256)
-      i_thres = (LONG)( (LONG)MAXVAL_DBL / ((((LONG)thresholds[i]))+1) )<<(32-24);
-    else
-      i_thres = (LONG)MAXVAL_DBL;
-
-    /* Copy one timeslot and de-scale and de-squish */
-    if (YBufferSzShift == 1) {
-      for(j=startEnerg; j<YBufferWriteOffset; j++) {
-        FIXP_DBL tmp = Energies[j][i];
-        EnergiesTemp[(j<<1)+1] = EnergiesTemp[j<<1] = tmp>>tmpScaleEnergies0;
-      }
-      for(; j<=endEnerg; j++) {
-        FIXP_DBL tmp = Energies[j][i];
-        EnergiesTemp[(j<<1)+1] = EnergiesTemp[j<<1] = tmp>>tmpScaleEnergies1;
-      }
-    } else {
-      for(j=startEnerg; j<YBufferWriteOffset; j++) {
-        FIXP_DBL tmp = Energies[j][i];
-        EnergiesTemp[j] = tmp>>tmpScaleEnergies0;
-      }
-      for(; j<=endEnerg; j++) {
-        FIXP_DBL tmp = Energies[j][i];
-        EnergiesTemp[j] = tmp>>tmpScaleEnergies1;
-      }
-    }
-
-    /* Detect peaks in energy values. */
-
-    jIndex = tran_off;
-    jpBM = jIndex+addPrevSamples;
-
-    for (j=endCond; j--; jIndex++, jpBM++)
-    {
-
-      FIXP_DBL delta, tran;
-      int d;
-
-      delta = (FIXP_DBL)0;
-      tran  = (FIXP_DBL)0;
-
-      for (d=1; d<4; d++) {
-        delta += pEnergiesTemp[jIndex+d]; /* R */
-        delta -= pEnergiesTemp[jIndex-d]; /* L */
-        delta -= thres;
-
-        if ( delta > (FIXP_DBL)0 ) {
-          tran += fMult(i_thres, delta);
-        }
-      }
-      transients[jpBM] += tran;
-    }
-  }
-  C_ALLOC_SCRATCH_END(EnergiesTemp, FIXP_DBL, 2*QMF_MAX_TIME_SLOTS);
-}
-
-void
-FDKsbrEnc_transientDetect(HANDLE_SBR_TRANSIENT_DETECTOR h_sbrTran,
-                          FIXP_DBL **Energies,
-                          INT *scaleEnergies,
-                          UCHAR *transient_info,
-                          int YBufferWriteOffset,
-                          int YBufferSzShift,
-                          int timeStep,
-                          int frameMiddleBorder)
-{
-  int no_cols = h_sbrTran->no_cols;
-  int qmfStartSample;
-  int addPrevSamples;
-  int timeStepShift=0;
-  int i, cond;
-
-  /* Where to start looking for transients in the transient candidate buffer */
-  qmfStartSample = timeStep * frameMiddleBorder;
-  /* We need to look one value backwards in the transients, so we might need one more previous value. */
-  addPrevSamples = (qmfStartSample > 0) ? 0: 1;
-
-  switch (timeStep) {
-    case 1: timeStepShift = 0; break;
-    case 2: timeStepShift = 1; break;
-    case 4: timeStepShift = 2; break;
-  }
-
-  calculateThresholds(Energies,
-                      scaleEnergies,
-                      h_sbrTran->thresholds,
-                      YBufferWriteOffset,
-                      YBufferSzShift,
-                      h_sbrTran->no_cols,
-                      h_sbrTran->no_rows,
-                      h_sbrTran->tran_off);
-
-  extractTransientCandidates(Energies,
-                             scaleEnergies,
-                             h_sbrTran->thresholds,
-                             h_sbrTran->transients,
-                             YBufferWriteOffset,
-                             YBufferSzShift,
-                             h_sbrTran->no_cols,
-                             0,
-                             h_sbrTran->no_rows,
-                             h_sbrTran->tran_off,
-                             addPrevSamples );
-
-  transient_info[0] = 0;
-  transient_info[1] = 0;
-  transient_info[2] = 0;
-
-  /* Offset by the amount of additional previous transient candidates being kept. */
-  qmfStartSample += addPrevSamples;
-
-  /* Check for transients in second granule (pick the last value of subsequent values)  */
-  for (i=qmfStartSample; i<qmfStartSample + no_cols; i++) {
-    cond =    (h_sbrTran->transients[i] < fMult(FL2FXCONST_DBL(0.9f), h_sbrTran->transients[i - 1]) )
-           && (h_sbrTran->transients[i - 1] > h_sbrTran->tran_thr);
-
-    if (cond) {
-      transient_info[0] = (i - qmfStartSample)>>timeStepShift;
-      transient_info[1] = 1;
-      break;
-    }
-  }
-
-  if ( h_sbrTran->frameShift != 0) {
-      /* transient prediction for LDSBR */
-      /* Check for transients in first <frameShift> qmf-slots of second frame */
-      for (i=qmfStartSample+no_cols; i<qmfStartSample + no_cols+h_sbrTran->frameShift; i++) {
-
-        cond =    (h_sbrTran->transients[i] < fMult(FL2FXCONST_DBL(0.9f), h_sbrTran->transients[i - 1]) )
-               && (h_sbrTran->transients[i - 1] > h_sbrTran->tran_thr);
-
-        if (cond) {
-          int pos = (int) ( (i - qmfStartSample-no_cols) >> timeStepShift );
-          if ((pos < 3) && (transient_info[1]==0)) {
-            transient_info[2] = 1;
-          }
-          break;
-        }
-      }
-  }
-}
-
-int
-FDKsbrEnc_InitSbrTransientDetector(HANDLE_SBR_TRANSIENT_DETECTOR h_sbrTransientDetector,
-                                   INT   frameSize,
-                                   INT   sampleFreq,
-                                   sbrConfigurationPtr params,
-                                   int   tran_fc,
-                                   int   no_cols,
-                                   int   no_rows,
-                                   int   YBufferWriteOffset,
-                                   int   YBufferSzShift,
-                                   int   frameShift,
-                                   int   tran_off)
-{
-    INT totalBitrate = params->codecSettings.standardBitrate * params->codecSettings.nChannels;
-    INT codecBitrate = params->codecSettings.bitRate;
-    FIXP_DBL bitrateFactor_fix, framedur_fix;
-    INT scale_0, scale_1;
-
-    FDKmemclear(h_sbrTransientDetector,sizeof(SBR_TRANSIENT_DETECTOR));
-
-    h_sbrTransientDetector->frameShift = frameShift;
-    h_sbrTransientDetector->tran_off = tran_off;
-
-    if(codecBitrate) {
-      bitrateFactor_fix = fDivNorm((FIXP_DBL)totalBitrate, (FIXP_DBL)(codecBitrate<<2),&scale_0);
-    }
-    else {
-      bitrateFactor_fix = FL2FXCONST_DBL(1.0/4.0);
-      scale_0 = 0;
-    }
-
-    framedur_fix = fDivNorm(frameSize, sampleFreq);
-
-    /* The longer the frames, the more often should the FIXFIX-
-    case transmit 2 envelopes instead of 1.
-    Frame durations below 10 ms produce the highest threshold
-    so that practically always only 1 env is transmitted. */
-    FIXP_DBL tmp = framedur_fix - FL2FXCONST_DBL(0.010);
-
-    tmp = fixMax(tmp, FL2FXCONST_DBL(0.0001));
-    tmp = fDivNorm(FL2FXCONST_DBL(0.000075), fPow2(tmp), &scale_1);
-
-    scale_1 = -(scale_1 + scale_0 + 2);
-
-    FDK_ASSERT(no_cols <= QMF_MAX_TIME_SLOTS);
-    FDK_ASSERT(no_rows <= QMF_CHANNELS);
-
-    h_sbrTransientDetector->no_cols = no_cols;
-    h_sbrTransientDetector->tran_thr = (FIXP_DBL)((params->tran_thr << (32-24-1)) / no_rows);
-    h_sbrTransientDetector->tran_fc = tran_fc;
-
-    if (scale_1>=0) {
-      h_sbrTransientDetector->split_thr = fMult(tmp, bitrateFactor_fix) >> scale_1;
-    }
-    else {
-      h_sbrTransientDetector->split_thr = fMult(tmp, bitrateFactor_fix) << (-scale_1);
-    }
-
-    h_sbrTransientDetector->no_rows = no_rows;
-    h_sbrTransientDetector->mode = params->tran_det_mode;
-    h_sbrTransientDetector->prevLowBandEnergy = FL2FXCONST_DBL(0.0f);
-
-    return (0);
-}
-