index = decode012(gb); v->luma_dc_vlc = &ff_msmp4_dc_luma_vlc[index]; v->chroma_dc_vlc = &ff_msmp4_dc_chroma_vlc[index];
v->s.dc_table_index = decode012(gb);
static int advanced_decode_picture_secondary_header(VC9Context *v){    GetBitContext *gb = &v->s.gb;    int index, status = 0;    switch(v->s.pict_type)    {    case P_TYPE: status = decode_p_picture_secondary_header(v); break;    case B_TYPE: status = decode_b_picture_secondary_header(v); break;    case BI_TYPE:    case I_TYPE: status = decode_i_picture_secondary_header(v); break;     }    if (status<0) return FRAME_SKIPED;    /* AC Syntax */    v->ac_table_level = decode012(gb);    if (v->s.pict_type == I_TYPE || v->s.pict_type == BI_TYPE)    {        v->ac2_table_level = decode012(gb);    }    /* DC Syntax */    index = decode012(gb);    v->luma_dc_vlc = &ff_msmp4_dc_luma_vlc[index];    v->chroma_dc_vlc = &ff_msmp4_dc_chroma_vlc[index];    return 0;}