--- timer.h	2002/06/12 20:38:41	1.4
+++ timer.h	2002/09/05 21:20:51	1.5
@@ -1,12 +1,51 @@
-#ifndef _ENCORE_TIMER_H
-#define _ENCORE_TIMER_H
+/*****************************************************************************
+ *
+ *  XVID MPEG-4 VIDEO CODEC
+ *  - Simple profiling functions header file -
+ *
+ *  Copyright(C) 2002 Michael Militzer
+ *
+ *  This program is an implementation of a part of one or more MPEG-4
+ *  Video tools as specified in ISO/IEC 14496-2 standard.  Those intending
+ *  to use this software module in hardware or software products are
+ *  advised that its use may infringe existing patents or copyrights, and
+ *  any such use would be at such party's own risk.  The original
+ *  developer of this software module and his/her company, and subsequent
+ *  editors and their companies, will have no liability for use of this
+ *  software or modifications or derivatives thereof.
+ *
+ *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ * $Id: timer.h,v 1.5 2002/09/05 21:20:51 edgomez Exp $
+ *
+ ****************************************************************************/
+
+#ifndef _TIMER_H
+#define _TIMER_H
+
+/*****************************************************************************
+ * Prototypes
+ ****************************************************************************/
 
-#if defined(_PROFILING_)
+#ifdef _PROFILING_
 
 #include "../portab.h"
 
 uint64_t count_frames;
 
+/* Here we declare external symbols defined in timer.h */
 extern void start_timer();
 extern void start_global_timer();
 extern void stop_dct_timer();
@@ -28,6 +67,11 @@
 
 #else
 
+/*
+ * We define dummy inline functions, a good compiler should just
+ *  remove the function call
+ */
+
 static __inline void
 start_timer()
 {
@@ -101,6 +145,6 @@
 {
 }
 
-#endif
+#endif /* _PROFILING_ */
 
-#endif							/* _TIMER_H_ */
+#endif /* _TIMER_H_ */