owng729fp.h

这是在PCA下的基于IPP库示例代码例子,在网上下了IPP的库之后,设置相关参数就可以编译该代码.

}G729CCoder_Obj;

typedef struct _VADmemory{
   float MeanLSFVec[LPC_ORDER];
   float MinimumBuff[16];
   float fMeanEnergy;
   float fMeanFullBandEnergy;
   float fMeanLowBandEnergy;
   float fMeanZeroCrossing;
   float fPrevMinEnergy;
   float fNextMinEnergy;
   float fMinEnergy;
   float fPrevEnergy;
   int lVADFlag;
   int lSilenceCounter;
   int lUpdateCounter;
   int lSmoothingCounter;
   int lFVD;
   int lLessEnergyCounter;
}VADmemory;

#define SUMAUTOCORRS_NUM       3
#define SUMAUTOCORRS_SIZE      (SUMAUTOCORRS_NUM * LPC_ORDERP1)
#define CURRAUTOCORRS_NUM       2
#define AUTOCORRS_SIZE         (CURRAUTOCORRS_NUM * LPC_ORDERP1)
#define GAINS_NUM         2

extern CONST float InitLSP[LPC_ORDER];
extern CONST float InitFrequences[LPC_ORDER];
extern CONST float lagBwd[BWD_LPC_ORDER];
extern CONST float SIDGainTbl[32];

typedef struct _CNGmemory{
   float AutoCorrs[AUTOCORRS_SIZE];
   float SumAutoCorrs[SUMAUTOCORRS_SIZE];
   float Energies[GAINS_NUM];
   int lAutoCorrsCounter;
   float fCurrGain;
   int lFltChangeFlag;
   float SIDQuantLSP[LPC_ORDER];
   float ReflectCoeffs[LPC_ORDERP1];
   int lNumSavedEnergies;
   float fSIDGain;
   float fPrevEnergy;
   int lFrameCounter0;
}CNGmemory;

typedef struct _PSTmemory{
   float STPNumCoeff[SHORTTERM_POSTFLT_LEN_E];    /* s.t. numerator coeff.        */
   float STPMemory[BWD_LPC_ORDER];           /* s.t. postfilter memory       */
   float ZeroMemory[BWD_LPC_ORDER];          /* null memory to compute h_st  */
   float ResidualMemory[SIZE_RESISDUAL_MEMORY];       /* A(gamma2) residual           */
   float gainPrec;
}PSTmemory;

typedef struct _MusDetectMemory{
   int lMusicCounter;
   float fMusicCounter;
   int lZeroMusicCounter;
   float fMeanPitchGain;
   int lPFlagCounter;
   float fMeanPFlagCounter;
   int lConscPFlagCounter;
   int lRCCounter;
   float MeanRC[10];
   float fMeanFullBandEnergy;
}MusDetectMemory;

typedef struct _PHDmemory{
   int prevDispState;
   float gainMem[6];
   float prevCbGain;
   int onset;
}PHDmemory;

struct _G729FPEncoder_Obj{
   G729CCoder_Obj       objPrm;
#if !defined (NO_SCRATCH_MEMORY_USED)
   ScratchMem_Obj      Mem;
#endif
   float OldSpeechBuffer[SPEECH_BUFF_LEN];
   float fBetaPreFilter;
   float OldWeightedSpeechBuffer[FRM_LEN+PITCH_LAG_MAX];
   float OldExcitationBuffer[FRM_LEN+PITCH_LAG_MAX+INTERPOL_LEN];
   float WeightedFilterMemory[BWD_LPC_ORDER];
   float FltMem[BWD_LPC_ORDER];
   float OldLSP[LPC_ORDER];
   float OldQuantLSP[LPC_ORDER];
   float ExcitationError[4];
   IppsIIRState_32f *iirstate;
   float PastQuantEnergy[4];
   float PrevFreq[MOVING_AVER_ORDER][LPC_ORDER];    /* previous LSP vector       */
   /* Last forkward A(z) for case of unstable filter */
   float OldForwardLPC[LPC_ORDERP1];
   float OldForwardRC[2];
   short sFrameCounter; /* frame counter for VAD*/
   /* DTX variables */
   int prevVADDec;
   int prevPrevVADDec;
   short sCNGSeed;
   char *vadMem;
   char *cngMem;
   char *msdMem;
   /* G729CA_CODEC*/
   float ZeroMemory[LPC_ORDER];
   /* Not G.729A */
   float SynFltMemory[BWD_LPC_ORDER];
   float ErrFltMemory[BWD_LPC_ORDER+SUBFR_LEN];
   float UnitImpulse[SUBFR_LEN+BWD_LPC_ORDERP1];
   /* for G.729E */
   /* for the backward analysis */
   float PrevFlt[BWD_LPC_ORDERP1]; /* Previous selected filter */
   float SynthBuffer[BWD_ANALISIS_WND_LEN];
   int prevLPCMode;
   float BackwardLPCMemory[BWD_LPC_ORDERP1];
   int isBWDDominant;
   float fInterpolationCoeff;
   short sGlobalStatInd;  /* Mesure of global stationnarity */
   short sBWDStatInd;       /* Num of consecutive backward frames */
   short sValBWDStatInd;   /* Value associated with stat_bwd */
   /* Last backward A(z) for case of unstable filter */
   float OldBackwardLPC[BWD_LPC_ORDERP1];
   float OldBackwardRC[2];
   int LagBuffer[5];
   float PitchGainBuffer[5];
   int  sBWDFrmCounter;
   int sFWDFrmCounter;
   int isSmooth;
   float LogAreaRatioCoeff[2];
   int sSearchTimes;
   IppsWinHybridState_G729E_32f *pHWState;
};

struct _G729FPDecoder_Obj{
   G729CCoder_Obj       objPrm;
#if !defined (NO_SCRATCH_MEMORY_USED)
   ScratchMem_Obj      Mem;
#endif
   float OldExcitationBuffer[FRM_LEN+PITCH_LAG_MAX+INTERPOL_LEN];
   float fBetaPreFilter;            /* pitch sharpening of previous frame */
   int   prevPitchDelay;           /* integer delay of previous frame    */
   float fCodeGain;        /* Code gain                          */
   float fPitchGain;       /* Pitch gain                         */
   float OldLSP[LPC_ORDER];
   IppsIIRState_32f *iirstate;
   float PastQuantEnergy[4];
   float PrevFreq[MOVING_AVER_ORDER][LPC_ORDER];    /* previous LSP vector       */
   int prevMA;                  /* previous MA prediction coef.*/
   float prevLSF[LPC_ORDER];            /* previous LSF vector         */
   /* for G.729B */
   short sFESeed;
   /* CNG variables */
   int  prevFrameType;
   int  prevSID[4];/*prev SID need for erased only*/
   short sCNGSeed;
   float SID;
   float fCurrGain;
   float SIDLSP[LPC_ORDER];
   float fSIDGain;
   float SynFltMemory[BWD_LPC_ORDER];        /* Synthesis filter's memory          */
   char *phdMem;
   /* for G.729A */
   float PstFltMemoryA[LPC_ORDER];
   float fPastGain;
   float ResidualBufferA[PITCH_LAG_MAX+SUBFR_LEN]; /* inverse filtered synthesis (with A(z/GAMMA2_POSTFLT))   */
   float *ResidualMemory;
   float PstSynMemoryA[LPC_ORDER];   /* memory of filter 1/A(z/GAMMA1_POSTFLT) */
   float fPreemphMemoryA;
   /* Not G.729A */
   float  SynthBuffer[BWD_ANALISIS_WND_LEN];  /* Synthesis                   */
   int   prevFracPitchDelay;    /* integer delay of previous frame    */
   /* for the backward analysis */
   float BackwardUnqLPC[BWD_LPC_ORDERP1];
   float BackwardLPCMemory[BWD_LPC_ORDERP1];
   int   lPrevVoicing;
   int   lPrevBFI;
   int   prevLPCMode;
   float fFEInterpolationCoeff;
   float fInterpolationCoeff;
   float PrevFlt[BWD_LPC_ORDERP1]; /* Previous selected filter */
   int   lPrevPitchPT;
   int   lStatPitchPT;
   int   lStatPitch2PT;
   int   lStatFracPT;
   /* Last backward A(z) for case of unstable filter */
   float OldBackwardLPC[BWD_LPC_ORDERP1];
   float OldBackwardRC[2];
   float   fPitchGainMemory;
   float   fCodeGainMemory;
   float   fGainMuting;
   int     lBFICounter;
   int     sBWDStatInd;
   int  lVoicing; /* voicing from previous frame */
   float  g1PST;
   float  g2PST;
   float  gHarmPST;
   int  sBWDFrmCounter;
   int sFWDFrmCounter;
   char *pstMem;
   IppsWinHybridState_G729E_32f *pHWState;
};

#define   G729_CODECFUN(type,name,arg)                extern type name arg

__INLINE int Parity( int val){
  int temp, nBits, bit;
  int sum;

  temp = val >> 1;
  sum = 1;
  for (nBits = 0; nBits <= 5; nBits++) {
    temp = temp >> 1;
    bit = temp & 0x00000001;
    sum += bit;
  }
  sum = sum & 0x00000001;

  return sum;
}

__INLINE short Rand_16s(short *seed)
{
    *seed = (short)(*seed * 31821 + 13849);
    return(*seed);
}

static __ALIGN32 CONST short modtab[]={1, 2, 0, 1, 2, 0, 1, 2};

__INLINE void DecodeAdaptCodebookDelays(int *prevPitchDelay, int *prevFracPitchDelay,int *delayLine,
                                         int NSbfr, int badPitch,int pitchIndx,G729Codec_Type type){
   short minPitchDelay, maxPitchDelay;

   if(badPitch == 0){

      if (NSbfr == 0)                  /* if 1st subframe */
      {
         if (pitchIndx < 197)
         {
            delayLine[0] = (pitchIndx+2)/3 + 19;
            delayLine[1] = pitchIndx - delayLine[0] * 3 + 58;
         }
         else
         {
            delayLine[0] = pitchIndx - 112;
            delayLine[1] = 0;
         }

      } else  {/* second subframe */
         /* find minPitchDelay and maxPitchDelay for 2nd subframe */
         minPitchDelay = (short)(delayLine[0] - 5);
         CLIP_TO_LOWLEVEL(minPitchDelay,PITCH_LAG_MIN);

         maxPitchDelay = (short)(minPitchDelay + 9);
         if (maxPitchDelay > PITCH_LAG_MAX)
         {
            maxPitchDelay = PITCH_LAG_MAX;
            minPitchDelay = (short)(maxPitchDelay - 9);
         }
         if (type == G729D_MODE) {
            pitchIndx = pitchIndx & 15;
            if (pitchIndx <= 3) {
               delayLine[0] = minPitchDelay + pitchIndx;
               delayLine[1] = 0;
            }
            else if (pitchIndx < 12) {
               /* *T0_frac = index % 3; */
               delayLine[1] = modtab[pitchIndx - 4];
               delayLine[0] = (pitchIndx - delayLine[1])/3 + minPitchDelay + 2;

               if (delayLine[1] == 2) {
                  delayLine[1] = -1;
                  delayLine[0] += 1;
               }
            }
            else {
                delayLine[0] = minPitchDelay + pitchIndx - 6;
                delayLine[1] = 0;
            }

         }
         else {
            delayLine[0] = minPitchDelay + (pitchIndx + 2)/3 - 1;
            delayLine[1] = pitchIndx - 2 - 3 * ((pitchIndx + 2)/3 - 1);
         }
      }
      *prevPitchDelay = delayLine[0];
      *prevFracPitchDelay = delayLine[1];
   }else {                     /* Bad frame, or parity error */
      delayLine[0]  =  *prevPitchDelay;
      if (type == G729E_MODE) {
         delayLine[1] = *prevFracPitchDelay;
      }
      else {
         delayLine[1] = 0;
         *prevPitchDelay += 1;
         CLIP_TO_UPLEVEL(*prevPitchDelay,PITCH_LAG_MAX);
      }
   }
}

void CodewordImpConv_G729_32f(int index, const float *pSrc1,const float *pSrc2,float *pDst);

#endif /*__OWNCODEC_H__*/