bool Port::_connecting_blocked = false;
pframes_t Port::_global_port_buffer_offset = 0;
pframes_t Port::_cycle_nframes = 0;
+double Port::_speed_ratio = 1.0;
std::string Port::state_node_name = X_("Port");
+const uint32_t Port::_resampler_quality = 12;
/* a handy define to shorten what would otherwise be a needlessly verbose
* repeated phrase
/** @param n Port short name */
Port::Port (std::string const & n, DataType t, PortFlags f)
- : _port_buffer_offset (0)
- , _name (n)
+ : _name (n)
, _flags (f)
- , _last_monitor (false)
+ , _last_monitor (false)
{
_private_playback_latency.min = 0;
_private_playback_latency.max = 0;
assert (_name.find_first_of (':') == std::string::npos);
if (!port_engine.available ()) {
+ DEBUG_TRACE (DEBUG::Ports, string_compose ("port-engine n/a postpone registering %1\n", name()));
_port_handle = 0; // created during ::reestablish() later
} else if ((_port_handle = port_engine.register_port (_name, t, _flags)) == 0) {
cerr << "Failed to register port \"" << _name << "\", reason is unknown from here\n";
throw failed_constructor ();
}
+ DEBUG_TRACE (DEBUG::Ports, string_compose ("registed port %1 handle %2\n", name(), _port_handle));
PortDrop.connect_same_thread (drop_connection, boost::bind (&Port::drop, this));
PortSignalDrop.connect_same_thread (drop_connection, boost::bind (&Port::signal_drop, this));
void
Port::cycle_start (pframes_t)
{
- _port_buffer_offset = 0;
}
void
-Port::increment_port_buffer_offset (pframes_t nframes)
-{
- _port_buffer_offset += nframes;
-}
-
-void
-Port::set_public_latency_range (LatencyRange& range, bool playback) const
+Port::set_public_latency_range (LatencyRange const& range, bool playback) const
{
/* this sets the visible latency that the rest of the port system
sees. because we do latency compensation, all (most) of our visible
(playback ? "PLAYBACK" : "CAPTURE")));;
if (_port_handle) {
- port_engine.set_latency_range (_port_handle, playback, range);
+ LatencyRange r (range);
+ if (externally_connected ()) {
+#if 0
+ r.min *= _speed_ratio;
+ r.max *= _speed_ratio;
+#endif
+ r.min += (_resampler_quality - 1);
+ r.max += (_resampler_quality - 1);
+ }
+ port_engine.set_latency_range (_port_handle, playback, r);
}
}
if (_port_handle) {
r = port_engine.get_latency_range (_port_handle, sends_output() ? true : false);
+ if (externally_connected ()) {
+#if 0
+ r.min /= _speed_ratio;
+ r.max /= _speed_ratio;
+#endif
+ r.min += (_resampler_quality - 1);
+ r.max += (_resampler_quality - 1);
+ }
DEBUG_TRACE (DEBUG::Latency, string_compose (
"GET PORT %1: %4 PUBLIC latency range %2 .. %3\n",
DEBUG_TRACE (DEBUG::Latency, string_compose ("%1: %2 connections to check for latency range\n", name(), connections.size()));
for (vector<string>::const_iterator c = connections.begin();
- c != connections.end(); ++c) {
+ c != connections.end(); ++c) {
- LatencyRange lr;
+ LatencyRange lr;
- if (!AudioEngine::instance()->port_is_mine (*c)) {
+ if (!AudioEngine::instance()->port_is_mine (*c)) {
- /* port belongs to some other port-system client, use
- * the port engine to lookup its latency information.
- */
+ /* port belongs to some other port-system client, use
+ * the port engine to lookup its latency information.
+ */
PortEngine::PortHandle remote_port = port_engine.get_port_by_name (*c);
- if (remote_port) {
- lr = port_engine.get_latency_range (remote_port, playback);
+ if (remote_port) {
+ lr = port_engine.get_latency_range (remote_port, playback);
+ if (externally_connected ()) {
+#if 0
+ lr.min /= _speed_ratio;
+ lr.max /= _speed_ratio;
+#endif
+ lr.min += (_resampler_quality - 1);
+ lr.max += (_resampler_quality - 1);
+ }
- DEBUG_TRACE (DEBUG::Latency, string_compose (
- "\t%1 <-> %2 : latter has latency range %3 .. %4\n",
- name(), *c, lr.min, lr.max));
+ DEBUG_TRACE (DEBUG::Latency, string_compose (
+ "\t%1 <-> %2 : latter has latency range %3 .. %4\n",
+ name(), *c, lr.min, lr.max));
- range.min = min (range.min, lr.min);
- range.max = max (range.max, lr.max);
- }
+ range.min = min (range.min, lr.min);
+ range.max = max (range.max, lr.max);
+ }
} else {
- /* port belongs to this instance of ardour,
- so look up its latency information
- internally, because our published/public
- values already contain our plugin
- latency compensation.
- */
-
-
boost::shared_ptr<Port> remote_port = AudioEngine::instance()->get_port_by_name (*c);
- if (remote_port) {
- lr = remote_port->private_latency_range ((playback ? true : false));
- DEBUG_TRACE (DEBUG::Latency, string_compose (
- "\t%1 <-LOCAL-> %2 : latter has latency range %3 .. %4\n",
- name(), *c, lr.min, lr.max));
-
- range.min = min (range.min, lr.min);
- range.max = max (range.max, lr.max);
- }
- }
+ /* port belongs to this instance of ardour,
+ so look up its latency information
+ internally, because our published/public
+ values already contain our plugin
+ latency compensation.
+ */
+
+ boost::shared_ptr<Port> remote_port = AudioEngine::instance()->get_port_by_name (*c);
+ if (remote_port) {
+ lr = remote_port->private_latency_range ((playback ? true : false));
+ DEBUG_TRACE (DEBUG::Latency, string_compose (
+ "\t%1 <-LOCAL-> %2 : latter has latency range %3 .. %4\n",
+ name(), *c, lr.min, lr.max));
+
+ range.min = min (range.min, lr.min);
+ range.max = max (range.max, lr.max);
+ }
+ }
}
} else {
range.max = 0;
}
- DEBUG_TRACE (DEBUG::Latency, string_compose ("%1: final connected latency range [ %2 .. %3 ] \n", name(), range.min, range.max));
+ DEBUG_TRACE (DEBUG::Latency, string_compose ("%1: final connected latency range [ %2 .. %3 ] \n", name(), range.min, range.max));
}
int
return -1;
}
+ DEBUG_TRACE (DEBUG::Ports, string_compose ("Port::reestablish %1 handle %2\n", name(), _port_handle));
+
reset ();
port_manager->PortConnectedOrDisconnected.connect_same_thread (engine_connection,
return port_engine.physically_connected (_port_handle);
}
+bool
+Port::externally_connected () const
+{
+ if (!_port_handle) {
+ return false;
+ }
+
+ // TODO: When used with JACK, check if this port
+ // is connected to any non-ardour ports.
+
+ return port_engine.physically_connected (_port_handle);
+}
+
XMLNode&
Port::get_state () const
{
return 0;
}
+
+/*static*/ void
+Port::set_speed_ratio (double s) {
+ /* see VMResampler::set_rratio() for min/max range */
+ _speed_ratio = std::min (16.0, std::max (0.5, s));
+}
+
+/*static*/ void
+Port::set_cycle_samplecnt (pframes_t n) {
+ _cycle_nframes = floor (n * _speed_ratio);
+}
projects / ardour.git / blobdiff