C++ (Cpp) jack_port_set_alias Examples

Example #1

File: alsa_rawmidi.c Project: basilnut/jack2

static
inline int midi_port_open_jack(alsa_rawmidi_t *midi, midi_port_t *port, int type, const char *alias)
{
    char name[128];

    if (type & JackPortIsOutput)
        snprintf(name, sizeof(name), "system:midi_capture_%d", ++midi->midi_in_cnt);
    else
        snprintf(name, sizeof(name), "system:midi_playback_%d", ++midi->midi_out_cnt);

    port->jack = jack_port_register(midi->client, name, JACK_DEFAULT_MIDI_TYPE,
                                    type | JackPortIsPhysical | JackPortIsTerminal, 0);

    if (port->jack)
        jack_port_set_alias(port->jack, alias);
    return port->jack == NULL;
}

Example #2

File: alsa_seqmidi.c Project: Andux/jack2

static
port_t* port_create(alsa_seqmidi_t *self, int type, snd_seq_addr_t addr, const snd_seq_port_info_t *info)
{
	snd_seq_client_info_t* client_info;
	port_t *port;
	char *c;
	int err;
	int jack_caps;
        char name[128];

	port = calloc(1, sizeof(port_t));
	if (!port)
		return NULL;

	port->remote = addr;

	snd_seq_client_info_alloca (&client_info);
	snd_seq_get_any_client_info (self->seq, addr.client, client_info);

	snprintf(port->name, sizeof(port->name), "alsa_pcm:%s/midi_%s_%d",
		 snd_seq_client_info_get_name(client_info), port_type[type].name, addr.port+1);

	// replace all offending characters by -
	for (c = port->name; *c; ++c)
		if (!isalnum(*c) && *c != '/' && *c != '_' && *c != ':' && *c != '(' && *c != ')')
			*c = '-';

	jack_caps = port_type[type].jack_caps;

	/* mark anything that looks like a hardware port as physical&terminal */

	if (snd_seq_port_info_get_type (info) & (SND_SEQ_PORT_TYPE_HARDWARE|SND_SEQ_PORT_TYPE_PORT|SND_SEQ_PORT_TYPE_SPECIFIC)) {
		jack_caps |= (JackPortIsPhysical | JackPortIsTerminal);
	}

	if (jack_caps & JackPortIsOutput)
		snprintf(name, sizeof(name), "system:midi_capture_%d", ++self->midi_in_cnt);
	else
		snprintf(name, sizeof(name), "system:midi_playback_%d", ++self->midi_out_cnt);

	port->jack_port = jack_port_register(self->jack,
		name, JACK_DEFAULT_MIDI_TYPE, jack_caps, 0);
	if (!port->jack_port)
		goto failed;

	jack_port_set_alias (port->jack_port, port->name);

	/* generate an alias */

	snprintf(port->name, sizeof(port->name), "%s:midi/%s_%d",
		 snd_seq_client_info_get_name (client_info), port_type[type].name, addr.port+1);

	// replace all offending characters by -
	for (c = port->name; *c; ++c)
		if (!isalnum(*c) && *c != '/' && *c != '_' && *c != ':' && *c != '(' && *c != ')')
			*c = '-';

	jack_port_set_alias (port->jack_port, port->name);

	if (type == PORT_INPUT)
		err = alsa_connect_from(self, port->remote.client, port->remote.port);
	else
		err = snd_seq_connect_to(self->seq, self->port_id, port->remote.client, port->remote.port);
	if (err)
		goto failed;

	port->early_events = jack_ringbuffer_create(MAX_EVENT_SIZE*16);

	info_log("port created: %s", port->name);
	return port;

 failed:
 	port_free(self, port);
	return NULL;
}