Update to new iLBC codec

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3997 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 107 insertions, 105 deletions

diff --git a/codecs/ilbc/iCBConstruct.c b/codecs/ilbc/iCBConstruct.c
index acbf54e3c..384e75df6 100755
--- a/codecs/ilbc/iCBConstruct.c
+++ b/codecs/ilbc/iCBConstruct.c
@@ -1,105 +1,107 @@
- 
-/****************************************************************** 
- 
-    iLBC Speech Coder ANSI-C Source Code 
- 
-    iCBConstruct.c  
- 
-    Copyright (c) 2001, 
-    Global IP Sound AB. 
-    All rights reserved. 
- 
-******************************************************************/ 
- 
-#include <math.h> 
- 
-#include "iLBC_define.h" 
-#include "gainquant.h" 
-#include "getCBvec.h" 
-#include "iCBConstruct.h"
- 
-/*----------------------------------------------------------------* 
- *  Convert the codebook indexes to make the search easier 
- *---------------------------------------------------------------*/ 
- 
-void index_conv_enc( 
-    int *index          /* (i/o) Codebook indexes */ 
-){ 
-    int k; 
- 
-    for (k=1;k<CB_NSTAGES;k++) { 
-         
-        if ((index[k]>=108)&&(index[k]<172)) { 
-            index[k]-=64; 
-        } else if (index[k]>=236) { 
-            index[k]-=128; 
-        } else { 
-            /* ERROR */ 
-        } 
-    } 
-} 
- 
-void index_conv_dec( 
-    int *index          /* (i/o) Codebook indexes */ 
-){ 
-    int k; 
- 
-    for (k=1;k<CB_NSTAGES;k++) { 
-         
-        if ((index[k]>=44)&&(index[k]<108)) { 
-            index[k]+=64; 
-        } else if ((index[k]>=108)&&(index[k]<128)) { 
-            index[k]+=128; 
-        } else { 
-            /* ERROR */ 
-        } 
-    } 
-} 
- 
-/*----------------------------------------------------------------* 
- *  Construct decoded vector from codebook and gains. 
- *---------------------------------------------------------------*/ 
- 
-void iCBConstruct( 
-    float *decvector,   /* (o) Decoded vector */ 
-    int *index,         /* (i) Codebook indices */ 
-    int *gain_index,/* (i) Gain quantization indices */ 
-    float *mem,         /* (i) Buffer for codevector construction */ 
-    int lMem,           /* (i) Length of buffer */ 
-    int veclen,         /* (i) Length of vector */ 
-    int nStages         /* (i) Number of codebook stages */ 
-){ 
-    int j,k; 
-    float gain[CB_NSTAGES]; 
-    float cbvec[SUBL]; 
- 
-    /* gain de-quantization */ 
- 
-    gain[0] = gaindequant(gain_index[0], 1.0, 32); 
-    if (nStages > 1) { 
-        gain[1] = gaindequant(gain_index[1],  
-            (float)fabs(gain[0]), 16);   
-    } 
-    if (nStages > 2) { 
-        gain[2] = gaindequant(gain_index[2],  
-            (float)fabs(gain[1]), 8); 
-    } 
- 
-    /* codebook vector construction and construction of  
-    total vector */ 
- 
-    getCBvec(cbvec, mem, index[0], lMem, veclen); 
-    for (j=0;j<veclen;j++){ 
-        decvector[j] = gain[0]*cbvec[j]; 
-    } 
-    if (nStages > 1) { 
-        for (k=1; k<nStages; k++) { 
-            getCBvec(cbvec, mem, index[k], lMem, veclen); 
-            for (j=0;j<veclen;j++) { 
-                decvector[j] += gain[k]*cbvec[j]; 
-            } 
-        } 
-    } 
-} 
- 
- 
+
+/******************************************************************
+
+    iLBC Speech Coder ANSI-C Source Code
+
+    iCBConstruct.c 
+
+    Copyright (C) The Internet Society (2004). 
+    All Rights Reserved.
+
+******************************************************************/
+
+#include <math.h>
+
+#include "iLBC_define.h"
+#include "gainquant.h"
+#include "getCBvec.h"
+
+/*----------------------------------------------------------------*
+ *  Convert the codebook indexes to make the search easier
+ *---------------------------------------------------------------*/
+
+
+
+void index_conv_enc(
+    int *index          /* (i/o) Codebook indexes */
+){
+    int k;
+
+    for (k=1; k<CB_NSTAGES; k++) {
+        
+        if ((index[k]>=108)&&(index[k]<172)) {
+            index[k]-=64;
+        } else if (index[k]>=236) {
+            index[k]-=128;
+        } else {
+            /* ERROR */
+        }
+    }
+}
+
+void index_conv_dec(
+    int *index          /* (i/o) Codebook indexes */
+){
+    int k;
+
+    for (k=1; k<CB_NSTAGES; k++) {
+        
+        if ((index[k]>=44)&&(index[k]<108)) {
+            index[k]+=64;
+        } else if ((index[k]>=108)&&(index[k]<128)) {
+            index[k]+=128;
+        } else {
+            /* ERROR */
+        }
+    }
+}
+
+/*----------------------------------------------------------------*
+ *  Construct decoded vector from codebook and gains.
+ *---------------------------------------------------------------*/
+
+void iCBConstruct(
+    float *decvector,   /* (o) Decoded vector */
+    int *index,         /* (i) Codebook indices */
+    int *gain_index,/* (i) Gain quantization indices */
+    float *mem,         /* (i) Buffer for codevector construction */
+    int lMem,           /* (i) Length of buffer */
+    int veclen,         /* (i) Length of vector */
+    int nStages         /* (i) Number of codebook stages */
+){
+    int j,k;
+    float gain[CB_NSTAGES];
+    float cbvec[SUBL];
+
+    /* gain de-quantization */
+
+    gain[0] = gaindequant(gain_index[0], 1.0, 32);
+
+
+    if (nStages > 1) {
+        gain[1] = gaindequant(gain_index[1], 
+            (float)fabs(gain[0]), 16);  
+    }
+    if (nStages > 2) {
+        gain[2] = gaindequant(gain_index[2], 
+            (float)fabs(gain[1]), 8);
+    }
+
+    /* codebook vector construction and construction of 
+    total vector */
+
+    getCBvec(cbvec, mem, index[0], lMem, veclen);
+    for (j=0;j<veclen;j++){
+        decvector[j] = gain[0]*cbvec[j];
+    }
+    if (nStages > 1) {
+        for (k=1; k<nStages; k++) {
+            getCBvec(cbvec, mem, index[k], lMem, veclen);
+            for (j=0;j<veclen;j++) {
+                decvector[j] += gain[k]*cbvec[j];
+            }
+        }
+    }
+}
+
+