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

[ardour.git] / libs / ardour / ardour / importable_source.h

diff --git a/libs/ardour/ardour/importable_source.h b/libs/ardour/ardour/importable_source.h
new file mode 100644 (file)
index 0000000..a33cf56
--- /dev/null
+++ b/libs/ardour/ardour/importable_source.h
@@ -0,0 +1,43 @@
+/*
+    Copyright (C) 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.
+
+*/
+
+#ifndef __ardour_importable_source_h__
+#define __ardour_importable_source_h__
+
+#include <pbd/failed_constructor.h>
+#include <ardour/types.h>
+
+namespace ARDOUR {
+
+class ImportableSource {
+public:
+       ImportableSource () {}
+       virtual ~ImportableSource() {}
+
+       virtual nframes_t read (Sample* buffer, nframes_t nframes) = 0;
+       virtual float ratio() const { return 1.0f; }
+       virtual uint32_t channels() const = 0;
+       virtual nframes_t length() const = 0;
+       virtual nframes_t samplerate() const = 0;
+       virtual void      seek (nframes_t pos) = 0;
+};
+
+}
+
+#endif /* __ardour_importable_source_h__ */