static void init_vlcs() { static int done = 0; if (!done) { done = 1; init_vlc(&dc_lum_vlc, DC_VLC_BITS, 12, vlc_dc_lum_bits, 1, 1, vlc_dc_lum_code, 2, 2); init_vlc(&dc_chroma_vlc, DC_VLC_BITS, 12, vlc_dc_chroma_bits, 1, 1, vlc_dc_chroma_code, 2, 2); init_vlc(&mv_vlc, MV_VLC_BITS, 17, &mbMotionVectorTable[0][1], 2, 1, &mbMotionVectorTable[0][0], 2, 1); init_vlc(&mbincr_vlc, MBINCR_VLC_BITS, 36, &mbAddrIncrTable[0][1], 2, 1, &mbAddrIncrTable[0][0], 2, 1); init_vlc(&mb_pat_vlc, MB_PAT_VLC_BITS, 63, &mbPatTable[0][1], 2, 1, &mbPatTable[0][0], 2, 1); init_vlc(&mb_ptype_vlc, MB_PTYPE_VLC_BITS, 7, &table_mb_ptype[0][1], 2, 1, &table_mb_ptype[0][0], 2, 1); init_vlc(&mb_btype_vlc, MB_BTYPE_VLC_BITS, 11, &table_mb_btype[0][1], 2, 1, &table_mb_btype[0][0], 2, 1); init_rl(&rl_mpeg1); init_rl(&rl_mpeg2); init_2d_vlc_rl(&rl_mpeg1); init_2d_vlc_rl(&rl_mpeg2); } }