void ff_mqc_init_contexts(MqcState *mqc)
{
    int i;
    memset(mqc->cx_states, 0, sizeof(mqc->cx_states));
    mqc->cx_states[MQC_CX_UNI] = 2 * 46;
    mqc->cx_states[MQC_CX_RL]  = 2 * 3;
    mqc->cx_states[0]          = 2 * 4;

    for (i = 0; i < 47; i++) {
        ff_mqc_qe[2 * i]     =
        ff_mqc_qe[2 * i + 1] = cx_states[i].qe;

        ff_mqc_nlps[2 * i]     = 2 * cx_states[i].nlps + cx_states[i].sw;
        ff_mqc_nlps[2 * i + 1] = 2 * cx_states[i].nlps + 1 - cx_states[i].sw;
        ff_mqc_nmps[2 * i]     = 2 * cx_states[i].nmps;
        ff_mqc_nmps[2 * i + 1] = 2 * cx_states[i].nmps + 1;
    }
}