--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libtwamr/q_plsf.c	Mon May 06 03:45:04 2024 +0000
@@ -0,0 +1,53 @@
+/*
+********************************************************************************
+*
+*      GSM AMR-NB speech codec   R98   Version 7.6.0   December 12, 2001
+*                                R99   Version 3.3.0                
+*                                REL-4 Version 4.1.0                
+*
+********************************************************************************
+*
+*      File             : q_plsf.c
+*      Purpose          : common part (init, exit, reset) of LSF quantization
+*                         module (rest in q_plsf_3.c and q_plsf_5.c)
+*
+********************************************************************************
+*/
+
+/*
+********************************************************************************
+*                         MODULE INCLUDE FILE AND VERSION ID
+********************************************************************************
+*/
+#include "namespace.h"
+#include "q_plsf.h"
+ 
+/*
+********************************************************************************
+*                         INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+#include "basic_op.h"
+
+/*
+********************************************************************************
+*                         PUBLIC PROGRAM CODE
+********************************************************************************
+*/
+
+/*
+**************************************************************************
+*
+*  Function    : Q_plsf_reset
+*  Purpose     : Resets state memory
+*
+**************************************************************************
+*/
+void Q_plsf_reset (Q_plsfState *state)
+{
+  Word16 i;
+  
+  for ( i = 0; i < M; i++)
+      state->past_rq[i] = 0;
+}