100 lines
2.4 KiB
C++
100 lines
2.4 KiB
C++
/*
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* Copyright (C) 2016-2017 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2016-2017 Robin Gareus <robin@gareus.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <algorithm>
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#include "pbd/xml++.h"
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#include "ardour/audioengine.h"
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#include "ardour/buffer.h"
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#include "ardour/buffer_set.h"
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#include "ardour/io.h"
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#include "ardour/session.h"
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#include "ardour/sidechain.h"
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#include "pbd/i18n.h"
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using namespace ARDOUR;
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using namespace PBD;
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SideChain::SideChain (Session& s, const std::string& name)
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: IOProcessor (s, true, false, name)
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{
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}
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SideChain::~SideChain ()
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{
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disconnect ();
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}
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XMLNode&
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SideChain::state () const
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{
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XMLNode& node = IOProcessor::state ();
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node.set_property ("type", "sidechain");
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return node;
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}
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int
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SideChain::set_state (const XMLNode& node, int version)
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{
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IOProcessor::set_state (node, version);
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return 0;
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}
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void
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SideChain::run (BufferSet& bufs, samplepos_t start_sample, samplepos_t end_sample, double /*speed*/, pframes_t nframes, bool)
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{
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if (_input->n_ports () == ChanCount::ZERO || !_configured) {
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return;
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}
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if (!check_active()) {
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// zero buffers
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for (DataType::iterator t = DataType::begin (); t != DataType::end (); ++t) {
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for (uint32_t out = _configured_input.get (*t); out < bufs.count ().get (*t); ++out) {
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bufs.get_available (*t, out).silence (nframes);
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}
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}
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return;
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}
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_input->collect_input (bufs, nframes, _configured_input);
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bufs.set_count (_configured_output);
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}
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bool
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SideChain::can_support_io_configuration (const ChanCount& in, ChanCount& out)
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{
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out = in + _input->n_ports ();
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return true;
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}
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bool
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SideChain::configure_io (ChanCount in, ChanCount out)
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{
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if (out != in + _input->n_ports ()) {
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/* disabled for now - see PluginInsert::configure_io() */
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// return false;
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}
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return Processor::configure_io (in, out);
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}
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