func: static void fill_table(uint8_t* table[256 + 2*YUVRGB_TABLE_HEADROOM], const int elemsize,
  
                         const int inc, void *y_tab)
  
  {
  
      int i;
  
      uint8_t *y_table = y_tab;
  
  
  
      y_table -= elemsize * (inc >> 9);
  
  
  
      for (i = 0; i < 256 + 2*YUVRGB_TABLE_HEADROOM; i++) {
  
          int64_t cb = av_clip(i-YUVRGB_TABLE_HEADROOM, 0, 255)*inc;
  
          table[i] = y_table + elemsize * (cb >> 16);
  
      }
  
  }
  