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[lilypond.git] / lily / performance.cc

diff --git a/lily/performance.cc b/lily/performance.cc
index e536622f06f550336876ea29f4e3b421df787bce..1e360054ade3afce50a92e8f7af65584ff666bfd 100644 (file)
--- a/lily/performance.cc
+++ b/lily/performance.cc
@@ -1,9 +1,20 @@
 /*
-  performance.cc -- implement Performance
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 1997--2010 Jan Nieuwenhuizen <janneke@gnu.org>
 
-  (c) 1997--2007 Jan Nieuwenhuizen <janneke@gnu.org>
+  LilyPond 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 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond 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 LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "performance.hh"
@@ -94,7 +105,6 @@ Performance::write_output (string out) const
 
   /* Maybe a bit crude, but we had this before */
   File_name file_name (out);
-  file_name.ext_ = "midi";
   out = file_name.to_string ();
 
   Midi_stream midi_stream (out);
@@ -109,3 +119,9 @@ void
 Performance::process ()
 {
 }
+
+Performance *
+unsmob_performance (SCM x)
+{
+  return dynamic_cast<Performance*> (unsmob_music_output (x));
+}