X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fport_insert.cc;h=20c6b127d26f655ef9621a0fc2f89e805be8e536;hb=b2bf4eee3d9ca63a34415c75e877b8c97d6b5f13;hp=ffddc681c76802ca901741b470cc719dcf6da12f;hpb=6e9b9294e1e7a22f31eabbafa39cee5844b3449a;p=ardour.git diff --git a/libs/ardour/port_insert.cc b/libs/ardour/port_insert.cc index ffddc681c7..20c6b127d2 100644 --- a/libs/ardour/port_insert.cc +++ b/libs/ardour/port_insert.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2000,2007 Paul Davis + Copyright (C) 2000,2007 Paul Davis This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -19,19 +19,19 @@ #include -#include #include "pbd/failed_constructor.h" #include "pbd/xml++.h" +#include "ardour/audioengine.h" +#include "ardour/audio_port.h" +#include "ardour/buffer_set.h" #include "ardour/delivery.h" -#include "ardour/port_insert.h" +#include "ardour/mtdm.h" #include "ardour/plugin.h" #include "ardour/port.h" +#include "ardour/port_insert.h" #include "ardour/route.h" -#include "ardour/buffer_set.h" - -#include "ardour/audioengine.h" #include "ardour/session.h" #include "ardour/types.h" @@ -45,41 +45,111 @@ PortInsert::PortInsert (Session& s, boost::shared_ptr mm) : IOProcessor (s, true, true, string_compose (_("insert %1"), (bitslot = s.next_insert_id()) + 1), "") , _out (new Delivery (s, _output, mm, _name, Delivery::Insert)) { - ProcessorCreated (this); /* EMIT SIGNAL */ + _mtdm = 0; + _latency_detect = false; + _latency_flush_frames = false; + _measured_latency = 0; } -PortInsert::PortInsert (Session& s, boost::shared_ptr mm, const XMLNode& node) - : IOProcessor (s, true, true, "unnamed port insert") - , _out (new Delivery (s, _output, mm, _name, Delivery::Insert)) +PortInsert::~PortInsert () +{ + _session.unmark_insert_id (bitslot); + delete _mtdm; +} +void +PortInsert::start_latency_detection () { - if (set_state (node)) { - throw failed_constructor(); - } + if (_mtdm != 0) { + delete _mtdm; + } + + _mtdm = new MTDM; + _latency_flush_frames = false; + _latency_detect = true; + _measured_latency = 0; +} - ProcessorCreated (this); /* EMIT SIGNAL */ +void +PortInsert::stop_latency_detection () +{ + _latency_flush_frames = signal_latency() + _session.engine().frames_per_cycle(); + _latency_detect = false; } -PortInsert::~PortInsert () +void +PortInsert::set_measured_latency (nframes_t n) +{ + _measured_latency = n; +} + +nframes_t +PortInsert::latency() const { - GoingAway (); + /* because we deliver and collect within the same cycle, + all I/O is necessarily delayed by at least frames_per_cycle(). + + if the return port for insert has its own latency, we + need to take that into account too. + */ + + if (_measured_latency == 0) { + return _session.engine().frames_per_cycle() + _input->latency(); + } else { + return _measured_latency; + } } void -PortInsert::run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nframes_t nframes) +PortInsert::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, nframes_t nframes, bool) { if (_output->n_ports().n_total() == 0) { return; } - if (!active()) { + if (_latency_detect) { + + if (_input->n_ports().n_audio() != 0) { + + AudioBuffer& outbuf (_output->ports().nth_audio_port(0)->get_audio_buffer (nframes)); + Sample* in = _input->ports().nth_audio_port(0)->get_audio_buffer (nframes).data(); + Sample* out = outbuf.data(); + + _mtdm->process (nframes, in, out); + + outbuf.is_silent (false); + } + + return; + + } else if (_latency_flush_frames) { + + /* wait for the entire input buffer to drain before picking up input again so that we can't + hear the remnants of whatever MTDM pumped into the pipeline. + */ + + silence (nframes); + + if (_latency_flush_frames > nframes) { + _latency_flush_frames -= nframes; + } else { + _latency_flush_frames = 0; + } + + return; + } + + if (!_active && !_pending_active) { /* deliver silence */ silence (nframes); - return; + goto out; } - _out->run (bufs, start_frame, end_frame, nframes); + _out->run (bufs, start_frame, end_frame, nframes, true); _input->collect_input (bufs, nframes, ChanCount::ZERO); + + out: + _active = _pending_active; } XMLNode& @@ -96,51 +166,68 @@ PortInsert::state (bool full) node.add_property ("type", "port"); snprintf (buf, sizeof (buf), "%" PRIu32, bitslot); node.add_property ("bitslot", buf); + snprintf (buf, sizeof (buf), "%u", _measured_latency); + node.add_property("latency", buf); + snprintf (buf, sizeof (buf), "%u", _session.get_block_size()); + node.add_property("block_size", buf); return node; } int -PortInsert::set_state(const XMLNode& node) +PortInsert::set_state (const XMLNode& node, int version) { XMLNodeList nlist = node.children(); XMLNodeIterator niter; XMLPropertyList plist; const XMLProperty *prop; + const XMLNode* insert_node = &node; + + // legacy sessions: search for child IOProcessor node + for (niter = nlist.begin(); niter != nlist.end(); ++niter) { + if ((*niter)->name() == "IOProcessor") { + insert_node = *niter; + break; + } + } + + Processor::set_state (*insert_node, version); + if ((prop = node.property ("type")) == 0) { error << _("XML node describing port insert is missing the `type' field") << endmsg; return -1; } - + if (prop->value() != "port") { error << _("non-port insert XML used for port plugin insert") << endmsg; return -1; } + uint32_t blocksize = 0; + if ((prop = node.property ("block_size")) != 0) { + sscanf (prop->value().c_str(), "%u", &blocksize); + } + + //if the jack period is the same as when the value was saved, we can recall our latency.. + if ( (_session.get_block_size() == blocksize) && (prop = node.property ("latency")) != 0) { + uint32_t latency = 0; + sscanf (prop->value().c_str(), "%u", &latency); + _measured_latency = latency; + } + if ((prop = node.property ("bitslot")) == 0) { bitslot = _session.next_insert_id(); } else { + _session.unmark_insert_id (bitslot); sscanf (prop->value().c_str(), "%" PRIu32, &bitslot); _session.mark_insert_id (bitslot); } - const XMLNode* insert_node = &node; - - // legacy sessions: search for child IOProcessor node - for (niter = nlist.begin(); niter != nlist.end(); ++niter) { - if ((*niter)->name() == "IOProcessor") { - insert_node = *niter; - break; - } - } - - Processor::set_state (*insert_node); - return 0; } -ARDOUR::nframes_t +ARDOUR::nframes_t PortInsert::signal_latency() const { /* because we deliver and collect within the same cycle, @@ -150,7 +237,11 @@ PortInsert::signal_latency() const need to take that into account too. */ - return _session.engine().frames_per_cycle() + _input->signal_latency(); + if (_measured_latency == 0) { + return _session.engine().frames_per_cycle() + _input->signal_latency(); + } else { + return _measured_latency; + } } bool @@ -181,7 +272,23 @@ PortInsert::set_name (const std::string& name) { bool ret = Processor::set_name (name); - ret = (_input->set_name (name) || _output->set_name (name)); + ret = (ret && _input->set_name (name) && _output->set_name (name)); return ret; } + +void +PortInsert::activate () +{ + IOProcessor::activate (); + + _out->activate (); +} + +void +PortInsert::deactivate () +{ + IOProcessor::deactivate (); + + _out->deactivate (); +}