example-clients/monitor_client.c

   1 /*
   2     This program is free software; you can redistribute it and/or modify
   3     it under the terms of the GNU General Public License as published by
   4     the Free Software Foundation; either version 2 of the License, or
   5     (at your option) any later version.
   6
   7     This program is distributed in the hope that it will be useful,
   8     but WITHOUT ANY WARRANTY; without even the implied warranty of
   9     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10     GNU General Public License for more details.
  11
  12     You should have received a copy of the GNU General Public License
  13     along with this program; if not, write to the Free Software
  14     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  15 */
  16
  17 #include <stdio.h>
  18 #include <unistd.h>
  19 #include <stdlib.h>
  20 #include <string.h>
  21
  22 #include <jack/jack.h>
  23
  24 #define TRUE 1
  25 #define FALSE 0
  26
  27 int
  28 main (int argc, char *argv[])
  29 {
  30         jack_client_t *client;
  31         char *my_name = strrchr(argv[0], '/');
  32
  33         if (my_name == 0) {
  34                 my_name = argv[0];
  35         } else {
  36                 my_name ++;
  37         }
  38
  39         if (argc != 2) {
  40                 fprintf (stderr, "Usage: %s client\n", my_name);
  41                 return 1;
  42         }
  43
  44         if ((client = jack_client_open ("input monitoring", JackNullOption, NULL)) == 0) {
  45                 fprintf (stderr, "JACK server not running?\n");
  46                 return 1;
  47         }
  48
  49         if (jack_port_request_monitor_by_name (client, argv[1], TRUE)) {
  50                 fprintf (stderr, "could not enable monitoring for %s\n", argv[1]);
  51                 jack_client_close (client);
  52                 return 1;
  53         }
  54         sleep (30);
  55         if (jack_port_request_monitor_by_name (client, argv[1], FALSE)) {
  56                 fprintf (stderr, "could not disable monitoring for %s\n", argv[1]);
  57         }
  58         jack_client_close (client);
  59         exit (0);
  60 }
  61