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diff --git a/media/libstagefright/codecs/amrnb/enc/src/cor_h.h b/media/libstagefright/codecs/amrnb/enc/src/cor_h.h
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@@ -0,0 +1,96 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/****************************************************************************************
+Portions of this file are derived from the following 3GPP standard:
+
+    3GPP TS 26.073
+    ANSI-C code for the Adaptive Multi-Rate (AMR) speech codec
+    Available from http://www.3gpp.org
+
+(C) 2004, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC)
+Permission to distribute, modify and use this file under the standard license
+terms listed above has been obtained from the copyright holder.
+****************************************************************************************/
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef COR_H_H
+#define COR_H_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "typedef.h"
+
+#include "cor_h_x.h"                /* Used by legacy files */
+#include "cor_h_x2.h"               /* Used by legacy files */
+
+/*--------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; MACROS
+    ; Define module specific macros here
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES
+    ; Include all pre-processor statements here.
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ; Declare variables used in this module but defined elsewhere
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; ENUMERATED TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; STRUCTURES TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; GLOBAL FUNCTION DEFINITIONS
+    ; Function Prototype declaration
+    ----------------------------------------------------------------------------*/
+    void cor_h(
+        Word16 h[],          /* (i) : impulse response of weighted synthesis
+                                  filter                                  */
+        Word16 sign[],       /* (i) : sign of d[n]                            */
+        Word16 rr[][L_CODE], /* (o) : matrix of autocorrelation               */
+        Flag  *pOverflow
+    );
+
+    /*----------------------------------------------------------------------------
+    ; END
+    ----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+