func: void ff_clear_fixed_vector(float *out, const AMRFixed *in, int size)
  
  {
  
      int i;
  
  
  
      for (i=0; i < in->n; i++) {
  
          int x  = in->x[i], repeats = !((in->no_repeat_mask >> i) & 1);
  
  
  
  
          do {
  
              out[x] = 0.0;
  
              x += in->pitch_lag;
  
          } while (x < size && repeats);
  
      }
  
  }