func: static int huff_build10(VLC *vlc, uint8_t *len)
  
  {
  
      HuffEntry he[1024];
  
      uint32_t codes[1024];
  
      uint8_t bits[1024];
  
      uint16_t syms[1024];
  
      uint32_t code;
  
      int i;
  
  
  
      for (i = 0; i < 1024; i++) {
  
          he[i].sym = 1023 - i;
  
          he[i].len = len[i];
  
  
  
      }
  
      AV_QSORT(he, 1024, HuffEntry, huff_cmp_len10);
  
  
  
      code = 1;
  
      for (i = 1023; i >= 0; i--) {
  
          codes[i] = code >> (32 - he[i].len);
  
          bits[i]  = he[i].len;
  
          syms[i]  = he[i].sym;
  
          code += 0x80000000u >> (he[i].len - 1);
  
      }
  
  
  
      ff_free_vlc(vlc);
  
      return ff_init_vlc_sparse(vlc, FFMIN(he[1023].len, 12), 1024,
  
                                bits,  sizeof(*bits),  sizeof(*bits),
  
                                codes, sizeof(*codes), sizeof(*codes),
  
                                syms,  sizeof(*syms),  sizeof(*syms), 0);
  
  }