v->transacfrm2 = get_bits(&v->gb, 1); if (v->transacfrm2) v->transacfrm2 += get_bits(&v->gb, 1);
index = decode012(&v->gb); v->luma_ac2_vlc = NULL + index; v->chroma_ac2_vlc = NULL + index;
static int advanced_decode_picture_header(VC9Context *v){    static const int type_table[4] = { P_TYPE, B_TYPE, I_TYPE, BI_TYPE };    int type, i, ret;    if (v->interlace)    {        v->fcm = get_bits(&v->gb, 1);        if (v->fcm) v->fcm = 2+get_bits(&v->gb, 1);    }    type = get_prefix(&v->gb, 0, 4);    if (type > 4 || type < 0) return FRAME_SKIPED;    v->pict_type = type_table[type];    av_log(v->avctx, AV_LOG_INFO, "AP Frame Type: %i\n", v->pict_type);    if (v->tfcntrflag) v->tfcntr = get_bits(&v->gb, 8);    if (v->broadcast)    {        if (!v->interlace) v->rptfrm = get_bits(&v->gb, 2);        else        {            v->tff = get_bits(&v->gb, 1);            v->rff = get_bits(&v->gb, 1);        }    }    if (v->panscanflag)    {#if 0        for (i=0; i<v->numpanscanwin; i++)        {            v->topleftx[i] = get_bits(&v->gb, 16);            v->toplefty[i] = get_bits(&v->gb, 16);            v->bottomrightx[i] = get_bits(&v->gb, 16);            v->bottomrighty[i] = get_bits(&v->gb, 16);        }#else        skip_bits(&v->gb, 16*4*v->numpanscanwin);#endif    }    v->rndctrl = get_bits(&v->gb, 1);    v->uvsamp = get_bits(&v->gb, 1);    if (v->finterpflag == 1) v->interpfrm = get_bits(&v->gb, 1);    switch(v->pict_type)    {    case I_TYPE: if (decode_i_picture_header(v) < 0) return -1;    case P_TYPE: if (decode_p_picture_header(v) < 0) return -1;    case BI_TYPE:    case B_TYPE: if (decode_b_picture_header(v) < 0) return FRAME_SKIPED;    default: break;    }    /* AC/DC Syntax */    v->transacfrm = get_bits(&v->gb, 1);    if (v->transacfrm) v->transacfrm += get_bits(&v->gb, 1);    if (v->pict_type == I_TYPE || v->pict_type == BI_TYPE)    {        v->transacfrm2 = get_bits(&v->gb, 1);        if (v->transacfrm2) v->transacfrm2 += get_bits(&v->gb, 1);    }    v->transacdctab = get_bits(&v->gb, 1);    if (v->pict_type == I_TYPE) vop_dquant_decoding(v);    return 0;}