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/*
Copyright (C) 2004 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
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <time.h>
#include <cerrno>
#include <pbd/basename.h>
#include <ardour/sndfilesource.h>
#include <ardour/session.h>
#include <ardour/audioregion.h>
#include <ardour/audiofilter.h>
#include <ardour/region_factory.h>
#include <ardour/source_factory.h>
#include <ardour/analyser.h>
#include "i18n.h"
using namespace ARDOUR;
using namespace PBD;
int
AudioFilter::make_new_sources (boost::shared_ptr<AudioRegion> region, SourceList& nsrcs, string suffix)
{
vector<string> names = region->master_source_names();
if (names.size() != region->n_channels()) {
warning << _("This is an old Ardour session that does not have\n\
sufficient information for rendered FX") << endmsg;
return -1;
}
for (uint32_t i = 0; i < region->n_channels(); ++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);
}
}
string path = session.path_from_region_name (name, suffix);
if (path.length() == 0) {
error << string_compose (_("audiofilter: error creating name for new audio file based on %1"), region->name())
<< endmsg;
return -1;
}
try {
nsrcs.push_back (boost::dynamic_pointer_cast<AudioSource> (SourceFactory::createWritable (session, path, false, session.frame_rate())));
nsrcs.back()->prepare_for_peakfile_writes ();
}
catch (failed_constructor& err) {
error << string_compose (_("audiofilter: error creating new audio file %1 (%2)"), path, strerror (errno)) << endmsg;
return -1;
}
}
return 0;
}
int
AudioFilter::finish (boost::shared_ptr<AudioRegion> region, SourceList& nsrcs, string region_name)
{
/* update headers on new sources */
time_t xnow;
struct tm* now;
time (&xnow);
now = localtime (&xnow);
for (SourceList::iterator si = nsrcs.begin(); si != nsrcs.end(); ++si) {
boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource>(*si);
boost::shared_ptr<AudioSource> as = boost::dynamic_pointer_cast<AudioSource>(*si);
if (as) {
as->done_with_peakfile_writes ();
}
if (afs) {
afs->update_header (region->position(), *now, xnow);
afs->mark_immutable ();
}
/* now that there is data there, requeue the file for analysis */
if (Config->get_auto_analyse_audio()) {
Analyser::queue_source_for_analysis (*si, false);
}
}
/* make a new whole-file region that copies almost everything from the old one, but
uses the new sources (and new length and name)
*/
boost::shared_ptr<AudioRegion> ar;
boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource>(nsrcs.front());
string whole_file_region_name = region_name_from_path (afs->path(), true);
ar = boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create
(nsrcs, 0, nsrcs.front()->length(), whole_file_region_name, 0,
Region::Flag (Region::WholeFile|Region::DefaultFlags)));
/* now make a copy of the region that copies almost everything from the old one, but
uses the new sources (and new length and name)
*/
/* create a new region */
if (region_name.empty()) {
region_name = session.new_region_name (region->name());
}
results.clear ();
ar = boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create
(region, nsrcs, region_name, 0, region->flags()));
/* if we changed the length, fix up the envelope */
if (region->length() != ar->length()) {
ar->envelope().extend_to (ar->length());
}
results.push_back (ar);
return 0;
}
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