Add iLBC codec

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@852 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 55 insertions, 0 deletions

diff --git a/codecs/ilbc/createCB.h b/codecs/ilbc/createCB.h
new file mode 100755
index 000000000..41bbead14
--- /dev/null
+++ b/codecs/ilbc/createCB.h
@@ -0,0 +1,55 @@
+ 
+/****************************************************************** 
+ 
+    iLBC Speech Coder ANSI-C Source Code 
+ 
+    createCB.h 
+ 
+    Copyright (c) 2001, 
+    Global IP Sound AB. 
+    All rights reserved. 
+ 
+******************************************************************/ 
+ 
+#ifndef __iLBC_CREATECB_H 
+#define __iLBC_CREATECB_H 
+ 
+void filteredCBvecs( 
+    float *cbvectors,   /* (o) Codebook vector for the  
+                               higher section */ 
+    float *mem,         /* (i) Buffer to create codebook  
+                               vectors from */ 
+    int lMem        /* (i) Length of buffer */ 
+); 
+ 
+void searchAugmentedCB( 
+    int low,        /* (i) Start index for the search */ 
+    int high,           /* (i) End index for the search */ 
+    int stage,          /* (i) Current stage */ 
+    int startIndex,     /* (i) CB index for the first  
+                               augmented vector */ 
+    float *target,      /* (i) Target vector for encoding */ 
+    float *buffer,      /* (i) Pointer to the end of the  
+                               buffer for augmented codebook  
+                               construction */ 
+    float *max_measure, /* (i/o) Currently maximum measure */ 
+    int *best_index,/* (o) Currently the best index */ 
+    float *gain,    /* (o) Currently the best gain */ 
+    float *energy,      /* (o) Energy of augmented  
+                               codebook vectors */ 
+    float *invenergy/* (o) Inv energy of aug codebook  
+                               vectors */ 
+); 
+ 
+void createAugmentedVec( 
+    int index,          /* (i) Index for the aug vector  
+                               to be created */ 
+    float *buffer,      /* (i) Pointer to the end of the  
+                               buffer for augmented codebook  
+                               construction */ 
+    float *cbVec    /* (o) The construced codebook vector */ 
+); 
+ 
+#endif 
+ 
+