1 files changed, 29 insertions, 0 deletions
diff --git a/codecs/ilbc/lsf.h b/codecs/ilbc/lsf.h
new file mode 100755
index 000000000..825685d41
--- /dev/null
+++ b/codecs/ilbc/lsf.h
@@ -0,0 +1,29 @@
+ 
+/****************************************************************** 
+ 
+    iLBC Speech Coder ANSI-C Source Code 
+ 
+    lsf.h              
+ 
+    Copyright (c) 2001, 
+    Global IP Sound AB. 
+    All rights reserved. 
+ 
+******************************************************************/ 
+ 
+#ifndef __iLBC_LSF_H 
+#define __iLBC_LSF_H 
+ 
+void a2lsf(  
+    float *freq,/* (o) lsf coefficients */ 
+    float *a    /* (i) lpc coefficients */ 
+); 
+ 
+void lsf2a(  
+    float *a_coef,  /* (o) lpc coefficients */ 
+    float *freq     /* (i) lsf coefficients */ 
+); 
+ 
+#endif 
+ 
+