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-rw-r--r--src/libfaad/common.c32
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diff --git a/src/libfaad/common.c b/src/libfaad/common.c
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+/*
+** FAAD - Freeware Advanced Audio Decoder
+** Copyright (C) 2002 M. Bakker
+**
+** 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: common.c,v 1.1 2002/07/14 23:43:01 miguelfreitas Exp $
+**/
+
+/* just some common functions that could be used anywhere */
+
+#include "common.h"
+
+#define LOG2 0.30102999566398
+
+
+uint32_t int_log2(uint32_t val)
+{
+ return (uint32_t)(log((real_t)val)/LOG2 + 0.5);
+}