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diff --git a/libAACenc/src/adj_thr.h b/libAACenc/src/adj_thr.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.
+
+
+   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.
+
+   $Id$
+   Initial author:       M. Werner
+   contents/description: Threshold compensation
+
+******************************************************************************/
+#ifndef __ADJ_THR_H
+#define __ADJ_THR_H
+
+
+#include "adj_thr_data.h"
+#include "qc_data.h"
+#include "line_pe.h"
+#include "interface.h"
+
+
+
+void FDKaacEnc_peCalculation(PE_DATA *peData,
+                             PSY_OUT_CHANNEL* psyOutChannel[(2)],
+                             QC_OUT_CHANNEL* qcOutChannel[(2)],
+                             struct TOOLSINFO *toolsInfo,
+                             ATS_ELEMENT* adjThrStateElement,
+                             const INT nChannels);
+
+INT  FDKaacEnc_AdjThrNew(ADJ_THR_STATE** phAdjThr,
+                         INT             nElements);
+
+void FDKaacEnc_AdjThrInit(ADJ_THR_STATE *hAdjThr,
+                const INT peMean,
+                ELEMENT_BITS* elBits[(6)],
+                INT nElements,
+                FIXP_DBL vbrQualFactor);
+
+
+void FDKaacEnc_DistributeBits(ADJ_THR_STATE *adjThrState,
+    ATS_ELEMENT       *AdjThrStateElement,
+    PSY_OUT_CHANNEL   *psyOutChannel[(2)],
+    PE_DATA           *peData,
+    INT               *grantedPe,
+    INT               *grantedPeCorr,
+    const INT         nChannels,
+    const INT         commonWindow,
+    const INT         avgBits,
+    const INT         bitresBits,
+    const INT         maxBitresBits,
+    const FIXP_DBL    maxBitFac,
+    const INT         bitDistributenMode);
+
+void FDKaacEnc_AdjustThresholds(ATS_ELEMENT* AdjThrStateElement[(6)],
+    QC_OUT_ELEMENT*   qcElement[(6)],
+    QC_OUT*           qcOut,
+    PSY_OUT_ELEMENT*  psyOutElement[(6)],
+    INT               CBRbitrateMode,
+    CHANNEL_MAPPING*  cm);
+
+void FDKaacEnc_AdjThrClose(ADJ_THR_STATE** hAdjThr);
+
+#endif