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livetrax/libs/ardour/readable.cc

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2.1 KiB
C++

/*
* Copyright (C) 2020 Robin Gareus <robin@gareus.org>
*
* 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 <vector>
#include "pbd/error.h"
#include "ardour/audiofilesource.h"
#include "ardour/readable.h"
#include "ardour/session.h"
#include "ardour/srcfilesource.h"
#include "ardour/source_factory.h"
#include "pbd/i18n.h"
using namespace ARDOUR;
std::vector<boost::shared_ptr<AudioReadable> >
AudioReadable::load (Session& session, std::string const& path)
{
std::vector<boost::shared_ptr<AudioReadable> > readables;
ARDOUR::SoundFileInfo sf_info;
std::string error_msg;
if (!AudioFileSource::get_soundfile_info (path, sf_info, error_msg)) {
PBD::error << string_compose(_("Cannot open File \"%1\": %2"), path, error_msg) << endmsg;
throw failed_constructor ();
}
for (unsigned int n = 0; n < sf_info.channels; ++n) {
try {
boost::shared_ptr<AudioFileSource> afs;
afs = boost::dynamic_pointer_cast<AudioFileSource> (
SourceFactory::createExternal (DataType::AUDIO, session,
path, n,
Source::Flag (ARDOUR::AudioFileSource::NoPeakFile), false));
if (afs->sample_rate() != session.nominal_sample_rate()) {
boost::shared_ptr<SrcFileSource> sfs (new SrcFileSource(session, afs, ARDOUR::SrcBest));
readables.push_back(sfs);
} else {
readables.push_back (afs);
}
} catch (failed_constructor& err) {
PBD::error << string_compose(_("Could not read file \"%1\"."), path) << endmsg;
throw failed_constructor ();
}
}
return readables;
}