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diff --git a/libAACdec/src/aacdec_hcr.h b/libAACdec/src/aacdec_hcr.h
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+++ b/libAACdec/src/aacdec_hcr.h
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+/*****************************  MPEG-4 AAC Decoder  ***************************
+
+                      (C) Copyright Fraunhofer IIS 2000-2008
+                               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):   Robert Weidner (DSP Solutions)
+   Description: HCR Decoder: Interface function declaration; common defines
+                and structures; defines for switching error-generator,
+                -detector, and -concealment
+
+   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 _AACDEC_HCR_H_
+#define _AACDEC_HCR_H_
+
+
+
+#include "channelinfo.h"
+#include "FDK_bitstream.h"
+
+void  HcrInitRom (H_HCR_INFO hHcr);
+UINT HcrInit(H_HCR_INFO              pHcr,
+             CAacDecoderChannelInfo *pAacDecoderChannelInfo,
+             const SamplingRateInfo *pSamplingRateInfo,
+             HANDLE_FDK_BITSTREAM    bs);
+UINT  HcrDecoder (H_HCR_INFO hHcr,
+                  CAacDecoderChannelInfo *pAacDecoderChannelInfo,
+                  const SamplingRateInfo *pSamplingRateInfo,
+                  HANDLE_FDK_BITSTREAM bs);
+void  CarryBitToBranchValue(
+        UCHAR  carryBit,
+        UINT   treeNode,
+        UINT  *branchValue,
+        UINT  *branchNode
+        );
+
+void  CHcr_Read  (HANDLE_FDK_BITSTREAM bs,
+                  CAacDecoderChannelInfo *pAacDecoderChannelInfo);
+void  HcrMuteErroneousLines(H_HCR_INFO hHcr);
+
+void  setHcrType(H_HCR_INFO hHcr, MP4_ELEMENT_ID type);
+INT   getHcrType(H_HCR_INFO hHcr);
+
+
+
+#endif /* _AACDEC_HCR_H_ */