MemCapture and Playback

typedef std::chrono::high_resolution_clock Clock;
typedef std::chrono::milliseconds milliseconds;

Clock::time_point t0;
Clock::time_point t2;
bool first1 = true;
bool first2 = true;


void dump_incoming_frames(pjmedia_port * port, void * usr_data){
    milliseconds ms;
    if(first2){
        t0 = Clock::now();
        first = false;
    }
    else{
        Clock::time_point t1 = Clock::now();
        ms = std::chrono::duration_cast<milliseconds>(t1 - t0);
        std::cout << ms.count() << "ms\n";
        t0 = Clock::now();
    }
}


void send_incoming_frames(pjmedia_port * port, void * usr_data){
    milliseconds ms;
    if(first){
        t2 = Clock::now();
        first = false;
    }
    else{
        Clock::time_point t3 = Clock::now();
        ms = std::chrono::duration_cast<milliseconds>(t3 - t2);
        std::cout << ms.count() << "ms\n";
        t0 = Clock::now();
    }
}


void MyCall::onCallMediaState(OnCallMediaStateParam &prm){
    CallInfo ci = getInfo();
    pjsua_call_info ciUA;
    pjsua_call_get_info(ci.id, &ciUA);
    pjsua_conf_port_info cpi;
    pjsua_conf_get_port_info(ciUA.conf_slot, &cpi);

    uint buf_size = cpi.bits_per_sample*cpi.samples_per_frame/8;

    pj_pool_t *pool = pjsua_pool_create("POOLNAME", 2000, 2000);
    void *buffer0 = pj_pool_zalloc(pool, buf_size);
    void *buffer2 = pj_pool_zalloc(pool, buf_size);

    pjmedia_port *prtCap;
    pjmedia_port *prtPlay;

    pjmedia_mem_capture_create( pool,
                                buffer0,
                                buf_size,
                                cpi.clock_rate,
                                1,
                                cpi.samples_per_frame,
                                cpi.bits_per_sample,
                                0,
                                &prtCap);
    pjmedia_mem_capture_set_eof_cb2(prtCap, buffer0, dump_incoming_frames);

    pjmedia_mem_player_create(  pool,
                                buffer2,
                                buf_size2,
                                cpi.clock_rate,
                                1,
                                cpi.samples_per_frame,
                                cpi.bits_per_sample,
                                0,
                                &prtPlay);
    pjmedia_mem_player_set_eof_cb2(prtPlay, buffer2, send_incoming_frames);

    pjsua_conf_port_id capPortId;
    pjsua_conf_add_port(pool, prtCap, &capPortId);
    pjsua_conf_connect(ciUA.conf_slot, capPortId); //connect conference with port

    pjsua_conf_port_id playPortId;
    pjsua_conf_add_port(pool, prtPlay, &playPortId);
    pjsua_conf_connect(playPortId, ciUA.conf_slot); //Connect port with conference
}