func: void h263_decode_init_vlc(MpegEncContext *s)
  
  {
  
      static int done = 0;
  
  
  
      if (!done) {
  
          done = 1;
  
  
  
          init_vlc(&intra_MCBPC_vlc, INTRA_MCBPC_VLC_BITS, 9, 
  
                   intra_MCBPC_bits, 1, 1,
  
                   intra_MCBPC_code, 1, 1);
  
          init_vlc(&inter_MCBPC_vlc, INTER_MCBPC_VLC_BITS, 28, 
  
                   inter_MCBPC_bits, 1, 1,
  
                   inter_MCBPC_code, 1, 1);
  
          init_vlc(&cbpy_vlc, CBPY_VLC_BITS, 16,
  
                   &cbpy_tab[0][1], 2, 1,
  
                   &cbpy_tab[0][0], 2, 1);
  
          init_vlc(&mv_vlc, MV_VLC_BITS, 33,
  
                   &mvtab[0][1], 2, 1,
  
                   &mvtab[0][0], 2, 1);
  
          init_rl(&rl_inter);
  
          init_rl(&rl_intra);
  
          init_rl(&rvlc_rl_inter);
  
          init_rl(&rvlc_rl_intra);
  
          init_rl(&rl_intra_aic);
  
          init_vlc_rl(&rl_inter);
  
          init_vlc_rl(&rl_intra);
  
          init_vlc_rl(&rvlc_rl_inter);
  
          init_vlc_rl(&rvlc_rl_intra);
  
          init_vlc_rl(&rl_intra_aic);
  
          init_vlc(&dc_lum, DC_VLC_BITS, 10 /* 13 */,
  
                   &DCtab_lum[0][1], 2, 1,
  
                   &DCtab_lum[0][0], 2, 1);
  
          init_vlc(&dc_chrom, DC_VLC_BITS, 10 /* 13 */,
  
                   &DCtab_chrom[0][1], 2, 1,
  
                   &DCtab_chrom[0][0], 2, 1);
  
          init_vlc(&sprite_trajectory, SPRITE_TRAJ_VLC_BITS, 15,
  
                   &sprite_trajectory_tab[0][1], 4, 2,
  
                   &sprite_trajectory_tab[0][0], 4, 2);
  
          init_vlc(&mb_type_b_vlc, MB_TYPE_B_VLC_BITS, 4,
  
                   &mb_type_b_tab[0][1], 2, 1,
  
                   &mb_type_b_tab[0][0], 2, 1);
  
          init_vlc(&h263_mbtype_b_vlc, H263_MBTYPE_B_VLC_BITS, 15,
  
                   &h263_mbtype_b_tab[0][1], 2, 1,
  
                   &h263_mbtype_b_tab[0][0], 2, 1);
  
          init_vlc(&cbpc_b_vlc, CBPC_B_VLC_BITS, 4,
  
                   &cbpc_b_tab[0][1], 2, 1,
  
                   &cbpc_b_tab[0][0], 2, 1);
  
      }
  
  }
  