Genericificationalizeified AudioFilter (now Filter).

Added primitive (non-undoable, placeholder, etc) quantization.


git-svn-id: svn://localhost/ardour2/trunk@2254 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 105 insertions, 0 deletions

diff --git a/libs/ardour/filter.cc b/libs/ardour/filter.cc
new file mode 100644
index 0000000000..f655f71668
--- /dev/null
+++ b/libs/ardour/filter.cc
@@ -0,0 +1,105 @@
+/*
+    Copyright (C) 2004-2007 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/smf_source.h>
+#include <ardour/session.h>
+#include <ardour/region.h>
+#include <ardour/filter.h>
+#include <ardour/region_factory.h>
+#include <ardour/source_factory.h>
+
+#include "i18n.h"
+
+using namespace ARDOUR;
+using namespace PBD;
+
+int
+Filter::make_new_sources (boost::shared_ptr<Region> region, SourceList& nsrcs)
+{
+	vector<string> names = region->master_source_names();
+
+	for (uint32_t i = 0; i < region->n_channels(); ++i) {
+
+		string path = session.path_from_region_name (region->data_type(),
+				PBD::basename_nosuffix (names[i]), string (""));
+
+		if (path.length() == 0) {
+			error << string_compose (_("filter: error creating name for new file based on %1"), region->name()) 
+			      << endmsg;
+			return -1;
+		}
+
+		try {
+			nsrcs.push_back (boost::dynamic_pointer_cast<Source> (
+				SourceFactory::createWritable (region->data_type(), session, path, false, session.frame_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 (boost::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) {
+		boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource>(*si);
+		if (afs) {
+			afs->update_header (region->position(), *now, xnow);
+			afs->mark_immutable ();
+		}
+		
+		boost::shared_ptr<SMFSource> smfs = boost::dynamic_pointer_cast<SMFSource>(*si);
+		if (smfs) {
+			smfs->update_header (region->position(), *now, xnow);
+			smfs->flush_footer ();
+		}
+	}
+
+	/* create a new region */
+
+	region_name = session.new_region_name (region->name());
+	results.clear ();
+	results.push_back (RegionFactory::create (nsrcs, 0, region->length(), region_name, 0, 
+			Region::Flag (Region::WholeFile|Region::DefaultFlags)));
+	
+	return 0;
+}
+
+