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livetrax/libs/ardour/element_importer.cc

110 lines
2.7 KiB
C++

/*
* Copyright (C) 2008 Sakari Bergen <sakari.bergen@beatwaves.net>
* Copyright (C) 2009-2010 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2009-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2009 David Robillard <d@drobilla.net>
* Copyright (C) 2016 Tim Mayberry <mojofunk@gmail.com>
*
* 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 "ardour/element_importer.h"
#include <sstream>
#include <iomanip>
#include "pbd/string_convert.h"
#include "ardour/session.h"
#include "pbd/i18n.h"
using namespace std;
using namespace PBD;
using namespace ARDOUR;
PBD::Signal<std::pair<bool, string>(string, string)> ElementImporter::Rename;
PBD::Signal<bool(string)> ElementImporter::Prompt;
ElementImporter::ElementImporter (XMLTree const & source, ARDOUR::Session & session) :
source (source),
session(session),
_queued (false),
_broken (false)
{
source.root()->get_property ("sample-rate", sample_rate);
}
ElementImporter::~ElementImporter ()
{
}
void
ElementImporter::move ()
{
if (!_queued) { return; }
_move ();
}
bool
ElementImporter::prepare_move ()
{
if (_queued) {
return true;
}
_queued = _prepare_move ();
return _queued;
}
void
ElementImporter::cancel_move ()
{
if (!_queued) { return; }
_cancel_move ();
}
string
ElementImporter::timecode_to_string(Timecode::Time & time) const
{
std::ostringstream oss;
oss << std::setfill('0') << std::right <<
std::setw(2) <<
time.hours << ":" <<
std::setw(2) <<
time.minutes << ":" <<
std::setw(2) <<
time.seconds << ":" <<
std::setw(2) <<
time.frames;
return oss.str();
}
samplecnt_t
ElementImporter::rate_convert_samples (samplecnt_t samples) const
{
if (sample_rate == session.sample_rate()) {
return samples;
}
// +0.5 for proper rounding
return static_cast<samplecnt_t> (samples * (static_cast<double> (session.nominal_sample_rate()) / sample_rate) + 0.5);
}
string
ElementImporter::rate_convert_samples (string const & samples) const
{
return to_string (rate_convert_samples (string_to<uint32_t>(samples)));
}