Esempi in C++ (Cpp) per do_equalizer

Esempio n. 1

File: decode_i386.c Progetto: serghei/kde3-kdemultimedia

int synth_1to1(real *bandPtr,int channel,unsigned char *out,int *pnt)
{
#ifndef PENTIUM_OPT
  static real buffs[2][2][0x110];
  static const int step = 2;
  static int bo = 1;
  short *samples = (short *) (out + *pnt);

  real *b0,(*buf)[0x110];
  int clip = 0; 
  int bo1;
#endif

#ifndef NO_EQUALIZER
  if(param.enable_equalizer)
	do_equalizer(bandPtr,channel);
#endif

#ifndef PENTIUM_OPT
  if(!channel) {
    bo--;
    bo &= 0xf;
    buf = buffs[0];
  }
  else {
    samples++;
    buf = buffs[1];
  }

  if(bo & 0x1) {
    b0 = buf[0];
    bo1 = bo;
    dct64(buf[1]+((bo+1)&0xf),buf[0]+bo,bandPtr);
  }
  else {
    b0 = buf[1];
    bo1 = bo+1;
    dct64(buf[0]+bo,buf[1]+bo+1,bandPtr);
  }
  
  {
    register int j;
    real *window = decwin + 16 - bo1;

    for (j=16;j;j--,b0+=0x10,window+=0x20,samples+=step)
    {
      real sum;
      sum  = window[0x0] * b0[0x0];
      sum -= window[0x1] * b0[0x1];
      sum += window[0x2] * b0[0x2];
      sum -= window[0x3] * b0[0x3];
      sum += window[0x4] * b0[0x4];
      sum -= window[0x5] * b0[0x5];
      sum += window[0x6] * b0[0x6];
      sum -= window[0x7] * b0[0x7];
      sum += window[0x8] * b0[0x8];
      sum -= window[0x9] * b0[0x9];
      sum += window[0xA] * b0[0xA];
      sum -= window[0xB] * b0[0xB];
      sum += window[0xC] * b0[0xC];
      sum -= window[0xD] * b0[0xD];
      sum += window[0xE] * b0[0xE];
      sum -= window[0xF] * b0[0xF];

      WRITE_SAMPLE(samples,sum,clip);
    }

    {
      real sum;
      sum  = window[0x0] * b0[0x0];
      sum += window[0x2] * b0[0x2];
      sum += window[0x4] * b0[0x4];
      sum += window[0x6] * b0[0x6];
      sum += window[0x8] * b0[0x8];
      sum += window[0xA] * b0[0xA];
      sum += window[0xC] * b0[0xC];
      sum += window[0xE] * b0[0xE];
      WRITE_SAMPLE(samples,sum,clip);
      b0-=0x10,window-=0x20,samples+=step;
    }
    window += bo1<<1;

    for (j=15;j;j--,b0-=0x10,window-=0x20,samples+=step)
    {
      real sum;
      sum = -window[-0x1] * b0[0x0];
      sum -= window[-0x2] * b0[0x1];
      sum -= window[-0x3] * b0[0x2];
      sum -= window[-0x4] * b0[0x3];
      sum -= window[-0x5] * b0[0x4];
      sum -= window[-0x6] * b0[0x5];
      sum -= window[-0x7] * b0[0x6];
      sum -= window[-0x8] * b0[0x7];
      sum -= window[-0x9] * b0[0x8];
      sum -= window[-0xA] * b0[0x9];
      sum -= window[-0xB] * b0[0xA];
      sum -= window[-0xC] * b0[0xB];
      sum -= window[-0xD] * b0[0xC];
      sum -= window[-0xE] * b0[0xD];
      sum -= window[-0xF] * b0[0xE];
      sum -= window[-0x0] * b0[0xF];

      WRITE_SAMPLE(samples,sum,clip);
    }
  }
  *pnt += 128;

  return clip;
#elif defined(USE_MMX)
  {
    static short buffs[2][2][0x110];
    static int bo = 1;
    short *samples = (short *) (out + *pnt);
    synth_1to1_MMX(bandPtr, channel, samples, (short *) buffs, &bo); 
    *pnt += 128;
    return 0;
  } 
#else
  {
    int ret;
    ret = synth_1to1_pent(bandPtr,channel,out+*pnt);
    *pnt += 128;
    return ret;
  }
#endif
}

Esempio n. 2

File: decode_ntom.c Progetto: serghei/kde3-kdemultimedia

int synth_ntom(real *bandPtr,int channel,unsigned char *out,int *pnt)
{
  static real buffs[2][2][0x110];
  static const int step = 2;
  static int bo = 1;
  short *samples = (short *) (out + *pnt);

  real *b0,(*buf)[0x110];
  int clip = 0; 
  int bo1;
  int ntom;

#ifndef NO_EQUALIZER
  if(param.enable_equalizer)
	do_equalizer(bandPtr,channel);
#endif

  if(!channel) {
    bo--;
    bo &= 0xf;
    buf = buffs[0];
    ntom = ntom_val[1] = ntom_val[0];
  }
  else {
    samples++;
    out += 2; /* to compute the right *pnt value */
    buf = buffs[1];
    ntom = ntom_val[1];
  }

  if(bo & 0x1) {
    b0 = buf[0];
    bo1 = bo;
    dct64(buf[1]+((bo+1)&0xf),buf[0]+bo,bandPtr);
  }
  else {
    b0 = buf[1];
    bo1 = bo+1;
    dct64(buf[0]+bo,buf[1]+bo+1,bandPtr);
  }


  {
    register int j;
    real *window = decwin + 16 - bo1;
 
    for (j=16;j;j--,window+=0x10)
    {
      real sum;

      ntom += ntom_step;
      if(ntom < NTOM_MUL) {
        window += 16;
        b0 += 16;
        continue;
      }

      sum  = *window++ * *b0++;
      sum -= *window++ * *b0++;
      sum += *window++ * *b0++;
      sum -= *window++ * *b0++;
      sum += *window++ * *b0++;
      sum -= *window++ * *b0++;
      sum += *window++ * *b0++;
      sum -= *window++ * *b0++;
      sum += *window++ * *b0++;
      sum -= *window++ * *b0++;
      sum += *window++ * *b0++;
      sum -= *window++ * *b0++;
      sum += *window++ * *b0++;
      sum -= *window++ * *b0++;
      sum += *window++ * *b0++;
      sum -= *window++ * *b0++;

      while(ntom >= NTOM_MUL) {
        WRITE_SAMPLE(samples,sum,clip);
        samples += step;
        ntom -= NTOM_MUL;
      }
    }

    ntom += ntom_step;
    if(ntom >= NTOM_MUL)
    {
      real sum;
      sum  = window[0x0] * b0[0x0];
      sum += window[0x2] * b0[0x2];
      sum += window[0x4] * b0[0x4];
      sum += window[0x6] * b0[0x6];
      sum += window[0x8] * b0[0x8];
      sum += window[0xA] * b0[0xA];
      sum += window[0xC] * b0[0xC];
      sum += window[0xE] * b0[0xE];

      while(ntom >= NTOM_MUL) {
        WRITE_SAMPLE(samples,sum,clip);
        samples += step;
        ntom -= NTOM_MUL;
      }
    }

    b0-=0x10,window-=0x20;
    window += bo1<<1;

    for (j=15;j;j--,b0-=0x20,window-=0x10)
    {
      real sum;

      ntom += ntom_step;
      if(ntom < NTOM_MUL) {
        window -= 16;
        b0 += 16;
        continue;
      }

      sum = -*(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;

      while(ntom >= NTOM_MUL) {
        WRITE_SAMPLE(samples,sum,clip);
        samples += step;
        ntom -= NTOM_MUL;
      }
    }
  }

  ntom_val[channel] = ntom;
  *pnt = ((unsigned char *) samples - out);

  return clip;
}

Esempio n. 3

File: decode_2to1.c Progetto: OS2World/MM-VIDEO-MPG123

int synth_2to1(real *bandPtr,int channel,unsigned char *out)
{
  static real buffs[2][2][0x110];
  static const int step = 2;
  static int bo = 1;
  short *samples = (short *) out;

  real *b0,(*buf)[0x110];
  int clip = 0; 
  int bo1;

  if(flags.equalizer)
    do_equalizer(bandPtr,channel);

  if(!channel) {
    bo--;
    bo &= 0xf;
    buf = buffs[0];
  }
  else {
    samples++;
    buf = buffs[1];
  }

  if(bo & 0x1) {
    b0 = buf[0];
    bo1 = bo;
    dct64(buf[1]+((bo+1)&0xf),buf[0]+bo,bandPtr);
  }
  else {
    b0 = buf[1];
    bo1 = bo+1;
    dct64(buf[0]+bo,buf[1]+bo+1,bandPtr);
  }

  {
    register int j;
    real *window = decwin + 16 - bo1;

    for (j=8;j;j--,b0+=0x10,window+=0x30)
    {
      real sum;
      sum  = *window++ * *b0++;
      sum -= *window++ * *b0++;
      sum += *window++ * *b0++;
      sum -= *window++ * *b0++;
      sum += *window++ * *b0++;
      sum -= *window++ * *b0++;
      sum += *window++ * *b0++;
      sum -= *window++ * *b0++;
      sum += *window++ * *b0++;
      sum -= *window++ * *b0++;
      sum += *window++ * *b0++;
      sum -= *window++ * *b0++;
      sum += *window++ * *b0++;
      sum -= *window++ * *b0++;
      sum += *window++ * *b0++;
      sum -= *window++ * *b0++;

      WRITE_SAMPLE(samples,sum,clip); samples += step;
#if 0
      WRITE_SAMPLE(samples,sum,clip); samples += step;
#endif
    }

    {
      real sum;
      sum  = window[0x0] * b0[0x0];
      sum += window[0x2] * b0[0x2];
      sum += window[0x4] * b0[0x4];
      sum += window[0x6] * b0[0x6];
      sum += window[0x8] * b0[0x8];
      sum += window[0xA] * b0[0xA];
      sum += window[0xC] * b0[0xC];
      sum += window[0xE] * b0[0xE];
      WRITE_SAMPLE(samples,sum,clip); samples += step;
#if 0
      WRITE_SAMPLE(samples,sum,clip); samples += step;
#endif
      b0-=0x20,window-=0x40;
    }
    window += bo1<<1;

    for (j=7;j;j--,b0-=0x30,window-=0x30)
    {
      real sum;
      sum = -*(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;
      sum -= *(--window) * *b0++;

      WRITE_SAMPLE(samples,sum,clip); samples += step;
#if 0
      WRITE_SAMPLE(samples,sum,clip); samples += step;
#endif
    }
  }

  return clip;
}