initial bits of ilbc codec mod.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@452 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/codec/ilbc/src/enhancer.h

@@ -0,0 +1,33 @@
+   
+   /******************************************************************
+   
+       iLBC Speech Coder ANSI-C Source Code
+   
+       enhancer.h
+   
+       Copyright (C) The Internet Society (2004). 
+       All Rights Reserved.
+   
+   ******************************************************************/
+   
+   #ifndef __ENHANCER_H
+   #define __ENHANCER_H
+   
+   #include "iLBC_define.h"
+   
+   float xCorrCoef( 
+       float *target,      /* (i) first array */
+       float *regressor,   /* (i) second array */
+       int subl        /* (i) dimension arrays */
+   );
+   
+   int enhancerInterface(
+       float *out,         /* (o) the enhanced recidual signal */
+       float *in,          /* (i) the recidual signal to enhance */
+       iLBC_Dec_Inst_t *iLBCdec_inst 
+                           /* (i/o) the decoder state structure */
+   );
+   
+   #endif
+   
+