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Viewing changes to example-clients/midisine.c

  • Committer: Artem Popov
  • Date: 2012-01-03 15:45:46 UTC
  • mfrom: (1.2.4 upstream)
  • Revision ID: artfwo@ubuntu.com-20120103154546-2qwp637mmowe8gtm
Copied over JackControlAPI.cpp from Debian branch.

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example-clients/midisine.c
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/*
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    Copyright (C) 2004 Ian Esten
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    This program is free software; you can redistribute it and/or modify
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    it under the terms of the GNU General Public License as published by
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    the Free Software Foundation; either version 2 of the License, or
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                if ((in_event.time == i) && (event_index < event_count))
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                {
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                        if (((*(in_event.buffer) & 0xf0)) == 0x90)
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                        {   
 
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                        {
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                /* note on */
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                note = *(in_event.buffer + 1);
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                if (*(in_event.buffer + 2) == 0) {
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                ramp = (ramp > 1.0) ? ramp - 2.0 : ramp;
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                out[i] = note_on*sin(2*M_PI*ramp);
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        }
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        return 0;      
 
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        return 0;
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}
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static int srate(jack_nframes_t nframes, void *arg)
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static void jack_shutdown(void *arg)
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{
 
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    fprintf(stderr, "JACK shut down, exiting ...\n");
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        exit(1);
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}
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{
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        if ((client = jack_client_open("midisine", JackNullOption, NULL)) == 0)
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        {
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                fprintf(stderr, "jack server not running?\n");
 
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                fprintf(stderr, "JACK server not running?\n");
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                return 1;
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        }
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        calc_note_frqs(jack_get_sample_rate (client));
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        jack_set_process_callback (client, process, 0);
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                fprintf(stderr, "cannot activate client");
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                return 1;
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        }
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    /* install a signal handler to properly quits jack client */
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    signal(SIGQUIT, signal_handler);
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        signal(SIGTERM, signal_handler);