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diff --git a/libSBRenc/src/sbrenc_freq_sca.h b/libSBRenc/src/sbrenc_freq_sca.h
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+/****************************************************************************
+
+                       (C) copyright Fraunhofer-IIS (2004)
+                               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.
+
+
+   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.
+
+ $Id$
+
+*******************************************************************************/
+/*!
+  \file
+  \brief  frequency scale prototypes $Revision: 36867 $
+*/
+#ifndef __FREQ_SCA2_H
+#define __FREQ_SCA2_H
+
+#include "sbr_encoder.h"
+#include "sbr_def.h"
+
+#define MAX_OCTAVE        29
+#define MAX_SECOND_REGION 50
+
+
+INT
+FDKsbrEnc_UpdateFreqScale(UCHAR *v_k_master, INT *h_num_bands,
+                const INT k0, const INT k2,
+                const INT freq_scale,
+                const INT alter_scale);
+
+INT
+FDKsbrEnc_UpdateHiRes(UCHAR *h_hires,
+            INT *num_hires,
+            UCHAR *v_k_master,
+            INT num_master ,
+            INT *xover_band,
+            SR_MODE drOrSr,
+            INT noQMFChannels);
+
+void  FDKsbrEnc_UpdateLoRes(UCHAR * v_lores,
+                  INT *num_lores,
+                  UCHAR * v_hires,
+                  INT num_hires);
+
+INT
+FDKsbrEnc_FindStartAndStopBand(const INT samplingFreq,
+                     const INT noChannels,
+                     const INT startFreq,
+                     const INT stop_freq,
+                     const SR_MODE sampleRateMode,
+                     INT *k0,
+                     INT *k2);
+
+INT FDKsbrEnc_getSbrStartFreqRAW (INT startFreq, INT QMFbands, INT fs );
+INT FDKsbrEnc_getSbrStopFreqRAW  (INT stopFreq, INT QMFbands, INT fs);
+#endif