rollback to 3428, before the mysterious removal of libs/* at 3431/3432

git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 51 insertions, 0 deletions

diff --git a/libs/ardour/ardour/filter.h b/libs/ardour/ardour/filter.h
new file mode 100644
index 0000000000..b659873bdb
--- /dev/null
+++ b/libs/ardour/ardour/filter.h
@@ -0,0 +1,51 @@
+/*
+    Copyright (C) 2007 Paul Davis 
+    Author: Dave Robillard
+
+    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.
+
+*/
+
+#ifndef __ardour_filter_h__
+#define __ardour_filter_h__
+
+#include <vector>
+#include <ardour/region.h>
+
+namespace ARDOUR {
+
+class Region;
+class Session;
+
+class Filter {
+
+  public:
+	virtual ~Filter() {}
+
+	virtual int run (boost::shared_ptr<ARDOUR::Region>) = 0;
+	std::vector<boost::shared_ptr<ARDOUR::Region> > results;
+
+  protected:
+	Filter (ARDOUR::Session& s) : session(s) {}
+
+	int make_new_sources (boost::shared_ptr<ARDOUR::Region>, ARDOUR::SourceList&, std::string suffix = "");
+	int finish (boost::shared_ptr<ARDOUR::Region>, ARDOUR::SourceList&, std::string region_name = "");
+	
+	ARDOUR::Session& session;
+};
+
+} /* namespace */
+
+#endif /* __ardour_filter_h__ */