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diff --git a/libAACenc/src/band_nrg.h b/libAACenc/src/band_nrg.h
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+/******************************** MPEG Audio Encoder **************************
+
+                       (C) Copyright Fraunhofer IIS (1999)
+                               All Rights Reserved
+
+    Please be advised that this software and/or program delivery is
+    Confidential Information of Fraunhofer and subject to and covered by the
+
+    Fraunhofer IIS Software Evaluation Agreement
+    between Google Inc. and  Fraunhofer
+    effective and in full force since March 1, 2012.
+
+    You may use this software and/or program only under the terms and
+    conditions described in the above mentioned Fraunhofer IIS Software
+    Evaluation Agreement. Any other and/or further use requires a separate agreement.
+
+
+   $Id$
+   Author(s):   M. Werner
+   Description: Band/Line energy calculation
+
+   This software and/or program is protected by copyright law and international
+   treaties. Any reproduction or distribution of this software and/or program,
+   or any portion of it, may result in severe civil and criminal penalties, and
+   will be prosecuted to the maximum extent possible under law.
+
+******************************************************************************/
+#ifndef _BAND_NRG_H
+#define _BAND_NRG_H
+
+#include "common_fix.h"
+
+
+void
+FDKaacEnc_CalcSfbMaxScaleSpec(
+        const FIXP_DBL     *mdctSpectrum,
+        const INT          *bandOffset,
+        INT                *sfbMaxScaleSpec,
+        const INT           numBands
+        );
+
+FIXP_DBL
+FDKaacEnc_CheckBandEnergyOptim(
+        const FIXP_DBL     *mdctSpectrum,
+        INT                *sfbMaxScaleSpec,
+        const INT          *bandOffset,
+        const INT           numBands,
+        FIXP_DBL           *bandEnergy,
+        FIXP_DBL           *bandEnergyLdData,
+        INT                 minSpecShift
+        );
+
+INT
+FDKaacEnc_CalcBandEnergyOptimLong(
+        const FIXP_DBL     *mdctSpectrum,
+        INT                *sfbMaxScaleSpec,
+        const INT          *bandOffset,
+        const INT           numBands,
+        FIXP_DBL           *bandEnergy,
+        FIXP_DBL           *bandEnergyLdData
+        );
+
+void
+FDKaacEnc_CalcBandEnergyOptimShort(
+        const FIXP_DBL     *mdctSpectrum,
+        INT                *sfbMaxScaleSpec,
+        const INT          *bandOffset,
+        const INT           numBands,
+        FIXP_DBL           *bandEnergy
+        );
+
+
+void FDKaacEnc_CalcBandNrgMSOpt(
+        const FIXP_DBL   *RESTRICT mdctSpectrumLeft,
+        const FIXP_DBL   *RESTRICT mdctSpectrumRight,
+        INT              *RESTRICT sfbMaxScaleSpecLeft,
+        INT              *RESTRICT sfbMaxScaleSpecRight,
+        const INT        *RESTRICT bandOffset,
+        const INT         numBands,
+        FIXP_DBL         *RESTRICT bandEnergyMid,
+        FIXP_DBL         *RESTRICT bandEnergySide,
+        INT               calcLdData,
+        FIXP_DBL         *RESTRICT bandEnergyMidLdData,
+        FIXP_DBL         *RESTRICT bandEnergySideLdData);
+
+#endif