From d4ff9abc610add56b6c9e0ec193519f48689c0bd Mon Sep 17 00:00:00 2001
From: Mark Spencer <markster@digium.com>
Date: Thu, 14 Oct 2004 05:15:48 +0000
Subject: Update to new iLBC codec

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3997 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 codecs/ilbc/StateConstructW.c | 148 +++++++++++++++++++++---------------------
 1 file changed, 75 insertions(+), 73 deletions(-)

(limited to 'codecs/ilbc/StateConstructW.c')

diff --git a/codecs/ilbc/StateConstructW.c b/codecs/ilbc/StateConstructW.c
index 2b2114f3c..75f521328 100755
--- a/codecs/ilbc/StateConstructW.c
+++ b/codecs/ilbc/StateConstructW.c
@@ -1,73 +1,75 @@
- 
-/****************************************************************** 
- 
-    iLBC Speech Coder ANSI-C Source Code 
- 
-    StateConstructW.c  
- 
-    Copyright (c) 2001, 
-    Global IP Sound AB. 
-    All rights reserved. 
- 
-******************************************************************/ 
- 
-#include <math.h>  
-#include <string.h> 
- 
-#include "iLBC_define.h" 
-#include "constants.h" 
-#include "filter.h" 
-#include "StateConstructW.h"
- 
-/*----------------------------------------------------------------* 
- *  decoding of the start state 
- *---------------------------------------------------------------*/ 
- 
-void StateConstructW(  
-    int idxForMax,      /* (i) 6-bit index for the quantization of  
-                               max amplitude */ 
-    int *idxVec,    /* (i) vector of quantization indexes */ 
-    float *syntDenum,   /* (i) synthesis filter denumerator */ 
-    float *out,         /* (o) the decoded state vector */ 
-    int len             /* (i) length of a state vector */ 
-){ 
-    float maxVal, tmpbuf[LPC_FILTERORDER+2*STATE_LEN], *tmp,  
-        numerator[LPC_FILTERORDER+1]; 
-    float foutbuf[LPC_FILTERORDER+2*STATE_LEN], *fout; 
-    int k,tmpi; 
-     
-    /* decoding of the maximum value */ 
- 
-    maxVal = state_frgqTbl[idxForMax]; 
-    maxVal = (float)pow(10,maxVal)/(float)4.5; 
-         
-    /* initialization of buffers and coefficients */ 
-     
-    memset(tmpbuf, 0, LPC_FILTERORDER*sizeof(float)); 
-    memset(foutbuf, 0, LPC_FILTERORDER*sizeof(float)); 
-    for(k=0; k<LPC_FILTERORDER; k++){ 
-        numerator[k]=syntDenum[LPC_FILTERORDER-k]; 
-    } 
-    numerator[LPC_FILTERORDER]=syntDenum[0]; 
-    tmp = &tmpbuf[LPC_FILTERORDER]; 
-    fout = &foutbuf[LPC_FILTERORDER]; 
- 
-    /* decoding of the sample values */ 
-     
-    for(k=0; k<len; k++){ 
-        tmpi = len-1-k; 
-        /* maxVal = 1/scal */ 
-        tmp[k] = maxVal*state_sq3Tbl[idxVec[tmpi]]; 
-    } 
- 
-    /* circular convolution with all-pass filter */ 
- 
-    memset(tmp+len, 0, len*sizeof(float)); 
-    ZeroPoleFilter(tmp, numerator, syntDenum, 2*len,  
-        LPC_FILTERORDER, fout); 
-    for(k=0;k<len;k++){ 
-        out[k] = fout[len-1-k]+fout[2*len-1-k]; 
-    } 
-} 
- 
- 
+
+/******************************************************************
+
+
+
+    iLBC Speech Coder ANSI-C Source Code
+
+    StateConstructW.c 
+
+    Copyright (C) The Internet Society (2004). 
+    All Rights Reserved.
+
+******************************************************************/
+
+#include <math.h> 
+#include <string.h>
+
+#include "iLBC_define.h"
+#include "constants.h"
+#include "filter.h"
+
+/*----------------------------------------------------------------*
+ *  decoding of the start state
+ *---------------------------------------------------------------*/
+
+void StateConstructW( 
+    int idxForMax,      /* (i) 6-bit index for the quantization of 
+                               max amplitude */
+    int *idxVec,    /* (i) vector of quantization indexes */
+    float *syntDenum,   /* (i) synthesis filter denumerator */
+    float *out,         /* (o) the decoded state vector */
+    int len             /* (i) length of a state vector */
+){
+    float maxVal, tmpbuf[LPC_FILTERORDER+2*STATE_LEN], *tmp, 
+        numerator[LPC_FILTERORDER+1];
+    float foutbuf[LPC_FILTERORDER+2*STATE_LEN], *fout;
+    int k,tmpi;
+    
+    /* decoding of the maximum value */
+
+    maxVal = state_frgqTbl[idxForMax];
+    maxVal = (float)pow(10,maxVal)/(float)4.5;
+        
+    /* initialization of buffers and coefficients */
+    
+    memset(tmpbuf, 0, LPC_FILTERORDER*sizeof(float));
+    memset(foutbuf, 0, LPC_FILTERORDER*sizeof(float));
+    for (k=0; k<LPC_FILTERORDER; k++) {
+        numerator[k]=syntDenum[LPC_FILTERORDER-k];
+    }
+    numerator[LPC_FILTERORDER]=syntDenum[0];
+    tmp = &tmpbuf[LPC_FILTERORDER];
+    fout = &foutbuf[LPC_FILTERORDER];
+
+    /* decoding of the sample values */
+    
+    for (k=0; k<len; k++) {
+        tmpi = len-1-k;
+        /* maxVal = 1/scal */
+
+
+        tmp[k] = maxVal*state_sq3Tbl[idxVec[tmpi]];
+    }
+
+    /* circular convolution with all-pass filter */
+
+    memset(tmp+len, 0, len*sizeof(float));
+    ZeroPoleFilter(tmp, numerator, syntDenum, 2*len, 
+        LPC_FILTERORDER, fout);
+    for (k=0;k<len;k++) {
+        out[k] = fout[len-1-k]+fout[2*len-1-k];
+    }
+}
+
+
-- 
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