2 Copyright (C) 2000 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include "libardour-config.h"
27 #include "pbd/failed_constructor.h"
28 #include "pbd/xml++.h"
30 #include "ardour/audio_buffer.h"
31 #include "ardour/automation_list.h"
32 #include "ardour/buffer_set.h"
33 #include "ardour/event_type_map.h"
34 #include "ardour/ladspa_plugin.h"
35 #include "ardour/plugin.h"
36 #include "ardour/plugin_insert.h"
37 #include "ardour/port.h"
38 #include "ardour/route.h"
41 #include "ardour/lv2_plugin.h"
45 #include "ardour/vst_plugin.h"
48 #ifdef HAVE_AUDIOUNITS
49 #include "ardour/audio_unit.h"
52 #include "ardour/audioengine.h"
53 #include "ardour/session.h"
54 #include "ardour/types.h"
59 using namespace ARDOUR;
62 const string PluginInsert::port_automation_node_name = "PortAutomation";
64 PluginInsert::PluginInsert (Session& s, boost::shared_ptr<Plugin> plug)
65 : Processor (s, (plug ? plug->name() : string ("toBeRenamed")))
66 , _signal_analysis_collected_nframes(0)
67 , _signal_analysis_collect_nframes_max(0)
69 /* the first is the master */
72 _plugins.push_back (plug);
75 Glib::Mutex::Lock em (_session.engine().process_lock());
76 IO::PortCountChanged (max(input_streams(), output_streams()));
81 PluginInsert::set_count (uint32_t num)
83 bool require_state = !_plugins.empty();
85 /* this is a bad idea.... we shouldn't do this while active.
86 only a route holding their redirect_lock should be calling this
91 } else if (num > _plugins.size()) {
92 uint32_t diff = num - _plugins.size();
94 for (uint32_t n = 0; n < diff; ++n) {
95 _plugins.push_back (plugin_factory (_plugins[0]));
98 /* XXX do something */
102 } else if (num < _plugins.size()) {
103 uint32_t diff = _plugins.size() - num;
104 for (uint32_t n= 0; n < diff; ++n) {
112 PluginInsert::~PluginInsert ()
117 PluginInsert::control_list_automation_state_changed (Evoral::Parameter which, AutoState s)
119 if (which.type() != PluginAutomation)
122 boost::shared_ptr<AutomationControl> c
123 = boost::dynamic_pointer_cast<AutomationControl>(control (which));
126 _plugins[0]->set_parameter (which.id(), c->list()->eval (_session.transport_frame()));
131 PluginInsert::output_streams() const
133 ChanCount out = _plugins.front()->get_info()->n_outputs;
135 if (out == ChanCount::INFINITE) {
136 return _plugins.front()->output_streams ();
138 out.set_audio (out.n_audio() * _plugins.size());
139 out.set_midi (out.n_midi() * _plugins.size());
145 PluginInsert::input_streams() const
147 ChanCount in = _plugins[0]->get_info()->n_inputs;
149 if (in == ChanCount::INFINITE) {
150 return _plugins[0]->input_streams ();
152 in.set_audio (in.n_audio() * _plugins.size());
153 in.set_midi (in.n_midi() * _plugins.size());
159 PluginInsert::natural_output_streams() const
161 return _plugins[0]->get_info()->n_outputs;
165 PluginInsert::natural_input_streams() const
167 return _plugins[0]->get_info()->n_inputs;
171 PluginInsert::is_generator() const
173 /* XXX more finesse is possible here. VST plugins have a
174 a specific "instrument" flag, for example.
177 return _plugins[0]->get_info()->n_inputs.n_audio() == 0;
181 PluginInsert::set_automatable ()
183 set<Evoral::Parameter> a = _plugins.front()->automatable ();
185 Plugin::ParameterDescriptor desc;
187 for (set<Evoral::Parameter>::iterator i = a.begin(); i != a.end(); ++i) {
188 if (i->type() == PluginAutomation) {
190 Evoral::Parameter param(*i);
192 _plugins.front()->get_parameter_descriptor(i->id(), desc);
194 /* the Parameter belonging to the actual plugin doesn't have its range set
195 but we want the Controllable related to this Parameter to have those limits.
198 param.set_range (desc.lower, desc.upper, _plugins.front()->default_value(i->id()), desc.toggled);
199 can_automate (param);
200 boost::shared_ptr<AutomationList> list(new AutomationList(param));
201 add_control (boost::shared_ptr<AutomationControl>(new PluginControl(this, param, list)));
207 PluginInsert::parameter_changed (Evoral::Parameter which, float val)
209 if (which.type() != PluginAutomation)
212 Plugins::iterator i = _plugins.begin();
214 /* don't set the first plugin, just all the slaves */
216 if (i != _plugins.end()) {
218 for (; i != _plugins.end(); ++i) {
219 (*i)->set_parameter (which, val);
225 PluginInsert::set_block_size (nframes_t nframes)
228 for (Plugins::iterator i = _plugins.begin(); i != _plugins.end(); ++i) {
229 if ((*i)->set_block_size (nframes) != 0) {
237 PluginInsert::activate ()
239 for (Plugins::iterator i = _plugins.begin(); i != _plugins.end(); ++i) {
243 Processor::activate ();
247 PluginInsert::deactivate ()
249 Processor::deactivate ();
251 for (Plugins::iterator i = _plugins.begin(); i != _plugins.end(); ++i) {
257 PluginInsert::flush ()
259 for (vector<boost::shared_ptr<Plugin> >::iterator i = _plugins.begin(); i != _plugins.end(); ++i) {
265 PluginInsert::connect_and_run (BufferSet& bufs, nframes_t nframes, nframes_t offset, bool with_auto, nframes_t now)
267 // Calculate if, and how many frames we need to collect for analysis
268 nframes_t collect_signal_nframes = (_signal_analysis_collect_nframes_max -
269 _signal_analysis_collected_nframes);
270 if (nframes < collect_signal_nframes) { // we might not get all frames now
271 collect_signal_nframes = nframes;
274 ChanMapping in_map(input_streams());
275 ChanMapping out_map(output_streams());
277 /* Note that we've already required that plugins
278 be able to handle in-place processing.
285 for (Controls::iterator li = controls().begin(); li != controls().end(); ++li, ++n) {
287 boost::shared_ptr<AutomationControl> c
288 = boost::dynamic_pointer_cast<AutomationControl>(li->second);
290 if (c->parameter().type() == PluginAutomation && c->automation_playback()) {
293 const float val = c->list()->rt_safe_eval (now, valid);
303 if (collect_signal_nframes > 0) {
305 //std::cerr << "collect input, bufs " << bufs.count().n_audio() << " count, " << bufs.available().n_audio() << " available" << std::endl;
306 //std::cerr << " streams " << input_streams().n_audio() << std::endl;
307 //std::cerr << "filling buffer with " << collect_signal_nframes << " frames at " << _signal_analysis_collected_nframes << std::endl;
309 _signal_analysis_inputs.set_count(input_streams());
311 for (uint32_t i = 0; i < input_streams().n_audio(); ++i) {
312 _signal_analysis_inputs.get_audio(i).read_from(
314 collect_signal_nframes,
315 _signal_analysis_collected_nframes); // offset is for target buffer
320 for (Plugins::iterator i = _plugins.begin(); i != _plugins.end(); ++i) {
321 (*i)->connect_and_run(bufs, in_map, out_map, nframes, offset);
322 for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
323 in_map.offset_to(*t, natural_input_streams().get(*t));
324 out_map.offset_to(*t, natural_output_streams().get(*t));
328 if (collect_signal_nframes > 0) {
330 //std::cerr << " output, bufs " << bufs.count().n_audio() << " count, " << bufs.available().n_audio() << " available" << std::endl;
331 //std::cerr << " streams " << output_streams().n_audio() << std::endl;
333 _signal_analysis_outputs.set_count(output_streams());
335 for (uint32_t i = 0; i < output_streams().n_audio(); ++i) {
336 _signal_analysis_outputs.get_audio(i).read_from(
338 collect_signal_nframes,
339 _signal_analysis_collected_nframes); // offset is for target buffer
342 _signal_analysis_collected_nframes += collect_signal_nframes;
343 assert(_signal_analysis_collected_nframes <= _signal_analysis_collect_nframes_max);
345 if (_signal_analysis_collected_nframes == _signal_analysis_collect_nframes_max) {
346 _signal_analysis_collect_nframes_max = 0;
347 _signal_analysis_collected_nframes = 0;
349 AnalysisDataGathered(&_signal_analysis_inputs,
350 &_signal_analysis_outputs);
353 /* leave remaining channel buffers alone */
357 PluginInsert::silence (nframes_t nframes)
359 ChanMapping in_map(input_streams());
360 ChanMapping out_map(output_streams());
363 for (Plugins::iterator i = _plugins.begin(); i != _plugins.end(); ++i) {
364 (*i)->connect_and_run (_session.get_silent_buffers ((*i)->get_info()->n_inputs), in_map, out_map, nframes, 0);
370 PluginInsert::run (BufferSet& bufs, framepos_t /*start_frame*/, framepos_t /*end_frame*/, nframes_t nframes, bool)
372 if (_active || _pending_active) {
374 if (_session.transport_rolling()) {
375 automation_run (bufs, nframes);
377 connect_and_run (bufs, nframes, 0, false);
382 /* FIXME: type, audio only */
384 uint32_t in = _plugins[0]->get_info()->n_inputs.n_audio();
385 uint32_t out = _plugins[0]->get_info()->n_outputs.n_audio();
389 /* not active, but something has make up for any channel count increase */
391 for (uint32_t n = out - in; n < out; ++n) {
392 memcpy (bufs.get_audio(n).data(), bufs.get_audio(in - 1).data(), sizeof (Sample) * nframes);
396 bufs.count().set_audio(out);
399 _active = _pending_active;
403 PluginInsert::set_parameter (Evoral::Parameter param, float val)
405 if (param.type() != PluginAutomation) {
409 /* the others will be set from the event triggered by this */
411 _plugins[0]->set_parameter (param.id(), val);
413 boost::shared_ptr<AutomationControl> ac
414 = boost::dynamic_pointer_cast<AutomationControl>(control(param));
419 warning << "set_parameter called for nonexistant parameter "
420 << EventTypeMap::instance().to_symbol(param) << endmsg;
423 _session.set_dirty();
427 PluginInsert::get_parameter (Evoral::Parameter param)
429 if (param.type() != PluginAutomation) {
432 assert (!_plugins.empty ());
433 return _plugins[0]->get_parameter (param.id());
438 PluginInsert::automation_run (BufferSet& bufs, nframes_t nframes)
440 Evoral::ControlEvent next_event (0, 0.0f);
441 nframes_t now = _session.transport_frame ();
442 nframes_t end = now + nframes;
443 nframes_t offset = 0;
445 Glib::Mutex::Lock lm (control_lock(), Glib::TRY_LOCK);
448 connect_and_run (bufs, nframes, offset, false);
452 if (!find_next_event (now, end, next_event) || requires_fixed_sized_buffers()) {
454 /* no events have a time within the relevant range */
456 connect_and_run (bufs, nframes, offset, true, now);
462 nframes_t cnt = min (((nframes_t) ceil (next_event.when) - now), nframes);
464 connect_and_run (bufs, cnt, offset, true, now);
470 if (!find_next_event (now, end, next_event)) {
475 /* cleanup anything that is left to do */
478 connect_and_run (bufs, nframes, offset, true, now);
483 PluginInsert::default_parameter_value (const Evoral::Parameter& param)
485 if (param.type() != PluginAutomation)
488 if (_plugins.empty()) {
489 fatal << _("programming error: ") << X_("PluginInsert::default_parameter_value() called with no plugin")
494 return _plugins[0]->default_value (param.id());
497 boost::shared_ptr<Plugin>
498 PluginInsert::plugin_factory (boost::shared_ptr<Plugin> other)
500 boost::shared_ptr<LadspaPlugin> lp;
502 boost::shared_ptr<LV2Plugin> lv2p;
505 boost::shared_ptr<VSTPlugin> vp;
507 #ifdef HAVE_AUDIOUNITS
508 boost::shared_ptr<AUPlugin> ap;
511 if ((lp = boost::dynamic_pointer_cast<LadspaPlugin> (other)) != 0) {
512 return boost::shared_ptr<Plugin> (new LadspaPlugin (*lp));
514 } else if ((lv2p = boost::dynamic_pointer_cast<LV2Plugin> (other)) != 0) {
515 return boost::shared_ptr<Plugin> (new LV2Plugin (*lv2p));
518 } else if ((vp = boost::dynamic_pointer_cast<VSTPlugin> (other)) != 0) {
519 return boost::shared_ptr<Plugin> (new VSTPlugin (*vp));
521 #ifdef HAVE_AUDIOUNITS
522 } else if ((ap = boost::dynamic_pointer_cast<AUPlugin> (other)) != 0) {
523 return boost::shared_ptr<Plugin> (new AUPlugin (*ap));
527 fatal << string_compose (_("programming error: %1"),
528 X_("unknown plugin type in PluginInsert::plugin_factory"))
531 return boost::shared_ptr<Plugin> ((Plugin*) 0);
535 PluginInsert::configure_io (ChanCount in, ChanCount out)
537 if (set_count (count_for_configuration (in, out)) < 0) {
541 /* if we're running replicated plugins, each plugin has
542 the same i/o configuration and we may need to announce how many
543 output streams there are.
545 if we running a single plugin, we need to configure it.
548 if (_plugins.front()->configure_io (in, out) < 0) {
552 // we don't know the analysis window size, so we must work with the
553 // current buffer size here. each request for data fills in these
554 // buffers and the analyser makes sure it gets enough data for the
556 session().ensure_buffer_set (_signal_analysis_inputs, in);
557 //_signal_analysis_inputs.set_count (in);
559 session().ensure_buffer_set (_signal_analysis_outputs, out);
560 //_signal_analysis_outputs.set_count (out);
562 // std::cerr << "set counts to i" << in.n_audio() << "/o" << out.n_audio() << std::endl;
564 return Processor::configure_io (in, out);
568 PluginInsert::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
570 // Plugin has flexible I/O, so delegate to it
571 if (_plugins.front()->reconfigurable_io()) {
572 return _plugins.front()->can_support_io_configuration (in, out);
575 ChanCount inputs = _plugins[0]->get_info()->n_inputs;
576 ChanCount outputs = _plugins[0]->get_info()->n_outputs;
578 // Plugin inputs match requested inputs exactly
584 // See if replication is possible
585 // We can replicate if there exists a single factor f such that, for every type,
586 // the number of plugin inputs * f = the requested number of inputs
588 bool can_replicate = true;
589 for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
590 // No inputs of this type
591 if (inputs.get(*t) == 0 && in.get(*t) == 0) {
594 // Plugin has more inputs than requested, can not replicate
595 } else if (inputs.get(*t) >= in.get(*t)) {
596 can_replicate = false;
599 // Plugin inputs is not a factor of requested inputs, can not replicate
600 } else if (inputs.get(*t) == 0 || in.get(*t) % inputs.get(*t) != 0) {
601 can_replicate = false;
604 // Potential factor not set yet
606 f = in.get(*t) / inputs.get(*t);;
609 // Factor for this type does not match another type, can not replicate
610 if (f != (in.get(*t) / inputs.get(*t))) {
611 can_replicate = false;
617 for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
618 out.set (*t, outputs.get(*t) * f);
626 /* Number of plugin instances required to support a given channel configuration.
630 PluginInsert::count_for_configuration (ChanCount in, ChanCount /*out*/) const
632 if (_plugins.front()->reconfigurable_io()) {
633 /* plugin has flexible I/O, so the answer is always 1 */
634 /* this could change if we ever decide to replicate AU's */
638 // FIXME: take 'out' into consideration
640 ChanCount outputs = _plugins[0]->get_info()->n_outputs;
641 ChanCount inputs = _plugins[0]->get_info()->n_inputs;
643 if (inputs.n_total() == 0) {
644 /* instrument plugin, always legal, but throws away any existing streams */
648 if (inputs.n_total() == 1 && outputs == inputs
649 && ((inputs.n_audio() == 0 && in.n_audio() == 0)
650 || (inputs.n_midi() == 0 && in.n_midi() == 0))) {
651 /* mono plugin, replicate as needed to match in */
660 // assumes in is valid, so we must be replicating
661 if (inputs.n_total() < in.n_total()
662 && (in.n_total() % inputs.n_total() == 0)) {
664 return in.n_total() / inputs.n_total();
672 PluginInsert::get_state(void)
678 PluginInsert::state (bool full)
680 XMLNode& node = Processor::state (full);
682 node.add_property("type", _plugins[0]->state_node_name());
683 node.add_property("unique-id", _plugins[0]->unique_id());
684 node.add_property("count", string_compose("%1", _plugins.size()));
685 node.add_child_nocopy (_plugins[0]->get_state());
691 PluginInsert::set_state(const XMLNode& node, int version)
693 XMLNodeList nlist = node.children();
694 XMLNodeIterator niter;
695 XMLPropertyList plist;
696 const XMLProperty *prop;
697 ARDOUR::PluginType type;
699 if ((prop = node.property ("type")) == 0) {
700 error << _("XML node describing plugin is missing the `type' field") << endmsg;
704 if (prop->value() == X_("ladspa") || prop->value() == X_("Ladspa")) { /* handle old school sessions */
705 type = ARDOUR::LADSPA;
706 } else if (prop->value() == X_("lv2")) {
708 } else if (prop->value() == X_("vst")) {
710 } else if (prop->value() == X_("audiounit")) {
711 type = ARDOUR::AudioUnit;
713 error << string_compose (_("unknown plugin type %1 in plugin insert state"),
719 prop = node.property ("unique-id");
723 /* older sessions contain VST plugins with only an "id" field.
726 if (type == ARDOUR::VST) {
727 prop = node.property ("id");
733 error << _("Plugin has no unique ID field") << endmsg;
738 boost::shared_ptr<Plugin> plugin;
740 plugin = find_plugin (_session, prop->value(), type);
743 error << string_compose(_("Found a reference to a plugin (\"%1\") that is unknown.\n"
744 "Perhaps it was removed or moved since it was last used."), prop->value())
750 bool need_automatables = true;
752 if (_plugins.empty()) {
753 /* if we are adding the first plugin, we will need to set
754 up automatable controls.
756 need_automatables = true;
759 if ((prop = node.property ("count")) != 0) {
760 sscanf (prop->value().c_str(), "%u", &count);
763 if (_plugins.size() != count) {
765 _plugins.push_back (plugin);
767 for (uint32_t n = 1; n < count; ++n) {
768 _plugins.push_back (plugin_factory (plugin));
772 if (need_automatables) {
776 /* Handle the node list for this Processor (or Insert if an A2 session) */
777 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
779 if ((*niter)->name() == plugin->state_node_name()) {
781 for (Plugins::iterator i = _plugins.begin(); i != _plugins.end(); ++i) {
782 (*i)->set_state (**niter, version);
788 Processor::set_state (node, version);
790 if (version < 3000) {
792 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
793 if ((*niter)->name() == "Redirect") {
794 /* XXX do we need to tackle placement? i think not (pd; oct 16 2009) */
795 Processor::set_state (**niter, version);
800 // set_parameter_state_2X (node, version);
804 // set_parameter_state (node, version);
807 // The name of the PluginInsert comes from the plugin, nothing else
808 _name = plugin->get_info()->name;
810 /* catch up on I/O */
813 Glib::Mutex::Lock em (_session.engine().process_lock());
814 IO::PortCountChanged (max(input_streams(), output_streams()));
821 PluginInsert::set_parameter_state (const XMLNode& node, int version)
823 XMLNodeList nlist = node.children();
824 XMLNodeIterator niter;
826 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
828 if ((*niter)->name() != port_automation_node_name) {
834 XMLNodeConstIterator iter;
839 cnodes = (*niter)->children ("AutomationList");
841 for (iter = cnodes.begin(); iter != cnodes.end(); ++iter) {
845 /* XXX this code knows way too much about the internal details of an AutomationList state node */
847 if ((cprop = child->property("automation-id")) != 0) {
848 port = cprop->value().c_str();
850 warning << _("PluginInsert: Auto: no plugin parameter number seen") << endmsg;
854 if (sscanf (port, "parameter-%" PRIu32, &port_id) != 1) {
855 warning << _("PluginInsert: Auto: no parameter number found") << endmsg;
859 if (port_id >= _plugins[0]->parameter_count()) {
860 warning << _("PluginInsert: Auto: plugin parameter out of range") << endmsg;
864 boost::shared_ptr<AutomationControl> c = boost::dynamic_pointer_cast<AutomationControl>(
865 control(Evoral::Parameter(PluginAutomation, 0, port_id), true));
868 c->alist()->set_state (*child, version);
870 error << string_compose (_("PluginInsert: automatable control %1 not found - ignored"), port_id) << endmsg;
881 PluginInsert::set_parameter_state_2X (const XMLNode& node, int version)
883 XMLNodeList nlist = node.children();
884 XMLNodeIterator niter;
886 /* look for port automation node */
888 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
890 if ((*niter)->name() != port_automation_node_name) {
896 XMLNodeConstIterator iter;
901 cnodes = (*niter)->children ("port");
903 for (iter = cnodes.begin(); iter != cnodes.end(); ++iter){
907 if ((cprop = child->property("number")) != 0) {
908 port = cprop->value().c_str();
910 warning << _("PluginInsert: Auto: no ladspa port number") << endmsg;
914 sscanf (port, "%" PRIu32, &port_id);
916 if (port_id >= _plugins[0]->parameter_count()) {
917 warning << _("PluginInsert: Auto: port id out of range") << endmsg;
921 boost::shared_ptr<AutomationControl> c = boost::dynamic_pointer_cast<AutomationControl>(
922 control(Evoral::Parameter(PluginAutomation, 0, port_id), true));
925 if (!child->children().empty()) {
926 c->alist()->set_state (*child->children().front(), version);
929 error << string_compose (_("PluginInsert: automatable control %1 not found - ignored"), port_id) << endmsg;
941 PluginInsert::describe_parameter (Evoral::Parameter param)
943 if (param.type() != PluginAutomation)
944 return Automatable::describe_parameter(param);
946 return _plugins[0]->describe_parameter (param);
950 PluginInsert::signal_latency() const
953 return _user_latency;
956 return _plugins[0]->signal_latency ();
960 PluginInsert::type ()
962 return plugin()->get_info()->type;
965 PluginInsert::PluginControl::PluginControl (PluginInsert* p, const Evoral::Parameter ¶m, boost::shared_ptr<AutomationList> list)
966 : AutomationControl (p->session(), param, list, p->describe_parameter(param))
969 Plugin::ParameterDescriptor desc;
970 p->plugin(0)->get_parameter_descriptor (param.id(), desc);
971 _logarithmic = desc.logarithmic;
972 _toggled = desc.toggled;
976 PluginInsert::PluginControl::set_value (double val)
978 /* FIXME: probably should be taking out some lock here.. */
988 /*const float range = _list->get_max_y() - _list->get_min_y();
989 const float lower = _list->get_min_y();
992 val = lower + (range * val);
994 float log_lower = 0.0f;
996 log_lower = log(lower);
999 val = exp(log_lower + log(range) * val);
1004 for (Plugins::iterator i = _plugin->_plugins.begin();
1005 i != _plugin->_plugins.end(); ++i) {
1006 (*i)->set_parameter (_list->parameter().id(), val);
1009 boost::shared_ptr<Plugin> iasp = _plugin->_impulseAnalysisPlugin.lock();
1011 iasp->set_parameter (_list->parameter().id(), val);
1014 AutomationControl::set_value(val);
1018 PluginInsert::PluginControl::get_value (void) const
1020 /* FIXME: probably should be taking out some lock here.. */
1022 double val = _plugin->get_parameter (_list->parameter());
1036 return ((val - lower) / range);
1040 boost::shared_ptr<Plugin>
1041 PluginInsert::get_impulse_analysis_plugin()
1043 boost::shared_ptr<Plugin> ret;
1044 if (_impulseAnalysisPlugin.expired()) {
1045 ret = plugin_factory(_plugins[0]);
1046 _impulseAnalysisPlugin = ret;
1048 ret = _impulseAnalysisPlugin.lock();
1055 PluginInsert::collect_signal_for_analysis(nframes_t nframes)
1057 // called from outside the audio thread, so this should be safe
1058 // only do audio as analysis is (currently) only for audio plugins
1059 _signal_analysis_inputs.ensure_buffers( DataType::AUDIO, input_streams().n_audio(), nframes);
1060 _signal_analysis_outputs.ensure_buffers( DataType::AUDIO, output_streams().n_audio(), nframes);
1062 _signal_analysis_collected_nframes = 0;
1063 _signal_analysis_collect_nframes_max = nframes;