/** inform JACK that port has /frames/ frames of latency */
void
Port::set_latency ( direction_e dir, nframes_t min, nframes_t max )
{
#ifdef HAVE_JACK_PORT_GET_LATENCY_RANGE
jack_latency_range_t range;
// DMESSAGE( "Setting port latency!" );
range.max = max;
range.min = min;
jack_port_set_latency_range( _port, dir == Output ? JackPlaybackLatency : JackCaptureLatency, &range );
#else
jack_port_set_latency( _port, max );
#endif
}
static int
coreaudio_driver_attach (coreaudio_driver_t *driver, jack_engine_t *engine)
{
jack_port_t *port;
int port_flags;
channel_t chn;
char buf[JACK_PORT_NAME_SIZE];
driver->engine = engine;
driver->engine->set_buffer_size (engine, driver->frames_per_cycle);
driver->engine->set_sample_rate (engine, driver->frame_rate);
port_flags = JackPortIsOutput|JackPortIsPhysical|JackPortIsTerminal;
/*
if (driver->has_hw_monitoring) {
port_flags |= JackPortCanMonitor;
}
*/
for (chn = 0; chn < driver->capture_nchannels; chn++) {
//snprintf (buf, sizeof(buf) - 1, "capture_%lu", chn+1);
snprintf (buf, sizeof(buf) - 1, "%s:out%lu", driver->driver_name, chn+1);
if ((port = jack_port_register (driver->client, buf, JACK_DEFAULT_AUDIO_TYPE, port_flags, 0)) == NULL) {
jack_error ("coreaudio: cannot register port for %s", buf);
break;
}
/* XXX fix this so that it can handle: systemic (external) latency
*/
jack_port_set_latency (port, driver->frames_per_cycle);
driver->capture_ports = jack_slist_append (driver->capture_ports, port);
}
port_flags = JackPortIsInput|JackPortIsPhysical|JackPortIsTerminal;
for (chn = 0; chn < driver->playback_nchannels; chn++) {
//snprintf (buf, sizeof(buf) - 1, "playback_%lu", chn+1);
snprintf (buf, sizeof(buf) - 1, "%s:in%lu", driver->driver_name, chn+1);
if ((port = jack_port_register (driver->client, buf, JACK_DEFAULT_AUDIO_TYPE, port_flags, 0)) == NULL) {
jack_error ("coreaudio: cannot register port for %s", buf);
break;
}
/* XXX fix this so that it can handle: systemic (external) latency
*/
jack_port_set_latency (port, driver->frames_per_cycle);
driver->playback_ports = jack_slist_append (driver->playback_ports, port);
}
jack_activate (driver->client);
return 0;
}
