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livetrax/libs/ardour/filter.cc
Paul Davis b35518e212 switch from boost::{shared,weak}_ptr to std::{shared,weak}_ptr
This is mostly a simple lexical search+replace but the absence of operator< for
std::weak_ptr<T> leads to some complications, particularly with Evoral::Sequence
and ExportPortChannel.
2023-03-24 14:19:15 -06:00

149 lines
4.2 KiB
C++

/*
* Copyright (C) 2007-2015 David Robillard <d@drobilla.net>
* Copyright (C) 2007-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2009-2010 Carl Hetherington <carl@carlh.net>
*
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <time.h>
#include <cerrno>
#include "pbd/basename.h"
#include "ardour/analyser.h"
#include "ardour/audiofilesource.h"
#include "ardour/audioregion.h"
#include "ardour/filter.h"
#include "ardour/region.h"
#include "ardour/region_factory.h"
#include "ardour/session.h"
#include "ardour/smf_source.h"
#include "ardour/source_factory.h"
#include "pbd/i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
int
Filter::make_new_sources (std::shared_ptr<Region> region, SourceList& nsrcs, std::string suffix, bool use_session_sample_rate)
{
vector<string> names = region->master_source_names();
const SourceList::size_type nsrc = region->sources().size();
assert (nsrc <= names.size());
for (SourceList::size_type i = 0; i < nsrc; ++i) {
string name = PBD::basename_nosuffix (names[i]);
/* remove any existing version of suffix by assuming it starts
with some kind of "special" character.
*/
if (!suffix.empty()) {
string::size_type pos = name.find (suffix[0]);
if (pos != string::npos && pos > 2) {
name = name.substr (0, pos - 1);
}
}
const string path = (region->data_type() == DataType::MIDI)
? session.new_midi_source_path (name)
: session.new_audio_source_path (name, nsrc, i, false);
if (path.empty()) {
error << string_compose (_("filter: error creating name for new file based on %1"), region->name())
<< endmsg;
return -1;
}
try {
samplecnt_t sample_rate = session.sample_rate ();
if (!use_session_sample_rate) {
std::shared_ptr<AudioRegion> aregion = std::dynamic_pointer_cast<AudioRegion>(region);
if (aregion) {
sample_rate = aregion->audio_source()->sample_rate();
}
}
nsrcs.push_back (std::dynamic_pointer_cast<Source> (
SourceFactory::createWritable (region->data_type(), session,
path, sample_rate)));
}
catch (failed_constructor& err) {
error << string_compose (_("filter: error creating new file %1 (%2)"), path, strerror (errno)) << endmsg;
return -1;
}
}
return 0;
}
int
Filter::finish (std::shared_ptr<Region> region, SourceList& nsrcs, string region_name)
{
/* update headers on new sources */
time_t xnow;
struct tm* now;
time (&xnow);
now = localtime (&xnow);
/* this is ugly. */
for (SourceList::iterator si = nsrcs.begin(); si != nsrcs.end(); ++si) {
std::shared_ptr<AudioFileSource> afs = std::dynamic_pointer_cast<AudioFileSource>(*si);
if (afs) {
afs->done_with_peakfile_writes ();
afs->update_header (region->position_sample(), *now, xnow);
afs->mark_immutable ();
}
std::shared_ptr<SMFSource> smfs = std::dynamic_pointer_cast<SMFSource>(*si);
if (smfs) {
smfs->set_natural_position (region->position());
smfs->flush ();
}
/* now that there is data there, requeue the file for analysis */
Analyser::queue_source_for_analysis (*si, false);
}
/* create a new region */
if (region_name.empty()) {
region_name = RegionFactory::new_region_name (region->name());
}
results.clear ();
PropertyList plist (region->derive_properties (true, false));
plist.add (Properties::start, std::numeric_limits<timepos_t>::min());
plist.add (Properties::name, region_name);
plist.add (Properties::whole_file, true);
std::shared_ptr<Region> r = RegionFactory::create (nsrcs, plist);
results.push_back (r);
return 0;
}