confsample.c

一个开源SIP协议栈

	    if (!input("Enter destination port number", tmp2, sizeof(tmp2)) )
		continue;
	    dst = strtol(tmp2, &err, 10);
	    if (*err || dst < 0 || dst >= port_count) {
		puts("Invalid slot number");
		continue;
	    }

	    status = pjmedia_conf_connect_port(conf, src, dst, 0);
	    if (status != PJ_SUCCESS)
		app_perror(THIS_FILE, "Error connecting port", status);
	    
	    break;

	case 'd':
	    puts("");
	    puts("Disconnect port connection");
	    if (!input("Enter source port number", tmp1, sizeof(tmp1)) )
		continue;
	    src = strtol(tmp1, &err, 10);
	    if (*err || src < 0 || src >= port_count) {
		puts("Invalid slot number");
		continue;
	    }

	    if (!input("Enter destination port number", tmp2, sizeof(tmp2)) )
		continue;
	    dst = strtol(tmp2, &err, 10);
	    if (*err || dst < 0 || dst >= port_count) {
		puts("Invalid slot number");
		continue;
	    }

	    status = pjmedia_conf_disconnect_port(conf, src, dst);
	    if (status != PJ_SUCCESS)
		app_perror(THIS_FILE, "Error connecting port", status);
	    

	    break;

	case 't':
	    puts("");
	    puts("Adjust transmit level of a port");
	    if (!input("Enter port number", tmp1, sizeof(tmp1)) )
		continue;
	    src = strtol(tmp1, &err, 10);
	    if (*err || src < 0 || src >= port_count) {
		puts("Invalid slot number");
		continue;
	    }

	    if (!input("Enter level (-128 to >127, 0 for normal)", 
			      tmp2, sizeof(tmp2)) )
		continue;
	    level = strtol(tmp2, &err, 10);
	    if (*err || level < -128) {
		puts("Invalid level");
		continue;
	    }

	    status = pjmedia_conf_adjust_tx_level( conf, src, level);
	    if (status != PJ_SUCCESS)
		app_perror(THIS_FILE, "Error adjusting level", status);
	    break;


	case 'r':
	    puts("");
	    puts("Adjust receive level of a port");
	    if (!input("Enter port number", tmp1, sizeof(tmp1)) )
		continue;
	    src = strtol(tmp1, &err, 10);
	    if (*err || src < 0 || src >= port_count) {
		puts("Invalid slot number");
		continue;
	    }

	    if (!input("Enter level (-128 to >127, 0 for normal)", 
			      tmp2, sizeof(tmp2)) )
		continue;
	    level = strtol(tmp2, &err, 10);
	    if (*err || level < -128) {
		puts("Invalid level");
		continue;
	    }

	    status = pjmedia_conf_adjust_rx_level( conf, src, level);
	    if (status != PJ_SUCCESS)
		app_perror(THIS_FILE, "Error adjusting level", status);
	    break;

	case 'v':
	    puts("");
	    puts("Display VU meter");
	    if (!input("Enter port number to monitor", tmp1, sizeof(tmp1)) )
		continue;
	    src = strtol(tmp1, &err, 10);
	    if (*err || src < 0 || src >= port_count) {
		puts("Invalid slot number");
		continue;
	    }

	    if (!input("Enter r for rx level or t for tx level", tmp2, sizeof(tmp2)))
		continue;
	    if (tmp2[0] != 'r' && tmp2[0] != 't') {
		puts("Invalid option");
		continue;
	    }

	    if (!input("Duration to monitor (in seconds)", tmp1, sizeof(tmp1)) )
		continue;
	    strtol(tmp1, &err, 10);
	    if (*err) {
		puts("Invalid duration number");
		continue;
	    }

	    monitor_level(conf, src, tmp2[0], strtol(tmp1, &err, 10));
	    break;

	case 'q':
	    goto on_quit;

	default:
	    printf("Invalid input character '%c'\n", tmp[0]);
	    break;
	}
    }

on_quit:
    
    /* Start deinitialization: */

    /* Destroy conference bridge */
    status = pjmedia_conf_destroy( conf );
    PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);


    /* Destroy file ports */
    for (i=0; i<file_count; ++i) {
	status = pjmedia_port_destroy( file_port[i]);
	PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
    }

    /* Destroy recorder port */
    if (rec_port)
	pjmedia_port_destroy(rec_port);

    /* Release application pool */
    pj_pool_release( pool );

    /* Destroy media endpoint. */
    pjmedia_endpt_destroy( med_endpt );

    /* Destroy pool factory */
    pj_caching_pool_destroy( &cp );

    /* Shutdown PJLIB */
    pj_shutdown();

    /* Done. */
    return 0;
}


/*
 * List the ports in conference bridge
 */
static void conf_list(pjmedia_conf *conf, int detail)
{
    enum { MAX_PORTS = 32 };
    unsigned i, count;
    pjmedia_conf_port_info info[MAX_PORTS];

    printf("Conference ports:\n");

    count = PJ_ARRAY_SIZE(info);
    pjmedia_conf_get_ports_info(conf, &count, info);

    for (i=0; i<count; ++i) {
	char txlist[4*MAX_PORTS];
	unsigned j;
	pjmedia_conf_port_info *port_info = &info[i];	
	
	txlist[0] = '\0';
	for (j=0; j<port_info->listener_cnt; ++j) {
	    char s[10];
	    pj_ansi_sprintf(s, "#%d ", port_info->listener_slots[j]);
	    pj_ansi_strcat(txlist, s);

	}

	if (txlist[0] == '\0') {
	    txlist[0] = '-';
	    txlist[1] = '\0';
	}

	if (!detail) {
	    printf("Port #%02d %-25.*s  transmitting to: %s\n", 
		   port_info->slot, 
		   (int)port_info->name.slen, 
		   port_info->name.ptr,
		   txlist);
	} else {
	    unsigned tx_level, rx_level;

	    pjmedia_conf_get_signal_level(conf, port_info->slot,
					  &tx_level, &rx_level);

	    printf("Port #%02d:\n"
		   "  Name                    : %.*s\n"
		   "  Sampling rate           : %d Hz\n"
		   "  Samples per frame       : %d\n"
		   "  Frame time              : %d ms\n"
		   "  Signal level adjustment : tx=%d, rx=%d\n"
		   "  Current signal level    : tx=%u, rx=%u\n"
		   "  Transmitting to ports   : %s\n\n",
		   port_info->slot,
		   (int)port_info->name.slen,
		   port_info->name.ptr,
		   port_info->clock_rate,
		   port_info->samples_per_frame,
		   port_info->samples_per_frame*1000/port_info->clock_rate,
		   port_info->tx_adj_level,
		   port_info->rx_adj_level,
		   tx_level,
		   rx_level,
		   txlist);
	}

    }
    puts("");
}


/*
 * Display VU meter
 */
static void monitor_level(pjmedia_conf *conf, int slot, int dir, int dur)
{
    enum { SLEEP = 20, SAMP_CNT = 2};
    pj_status_t status;
    int i, total_count;
    unsigned level, samp_cnt;


    puts("");
    printf("Displaying VU meter for port %d for about %d seconds\n",
	   slot, dur);

    total_count = dur * 1000 / SLEEP;

    level = 0;
    samp_cnt = 0;

    for (i=0; i<total_count; ++i) {
	unsigned tx_level, rx_level;
	int j, length;
	char meter[21];

	/* Poll the volume every 20 msec */
	status = pjmedia_conf_get_signal_level(conf, slot, 
					       &tx_level, &rx_level);
	if (status != PJ_SUCCESS) {
	    app_perror(THIS_FILE, "Unable to read level", status);
	    return;
	}

	level += (dir=='r' ? rx_level : tx_level);
	++samp_cnt;

	/* Accumulate until we have enough samples */
	if (samp_cnt < SAMP_CNT) {
	    pj_thread_sleep(SLEEP);
	    continue;
	}

	/* Get average */
	level = level / samp_cnt;

	/* Draw bar */
	length = 20 * level / 255;
	for (j=0; j<length; ++j)
	    meter[j] = '#';
	for (; j<20; ++j)
	    meter[j] = ' ';
	meter[20] = '\0';

	printf("Port #%02d %cx level: [%s] %d  \r",
	       slot, dir, meter, level);

	/* Next.. */
	samp_cnt = 0;
	level = 0;

	pj_thread_sleep(SLEEP);
    }

    puts("");
}