--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgsmfr2/pp_state.c	Fri Apr 12 20:49:53 2024 +0000
@@ -0,0 +1,26 @@
+/*
+ * In this module we implement allocation and initialization
+ * of state structures for our GSM FR preprocessor.
+ */
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include "tw_gsmfr.h"
+#include "pp_internal.h"
+
+struct gsmfr_preproc_state *gsmfr_preproc_create(void)
+{
+	struct gsmfr_preproc_state *st;
+
+	st = malloc(sizeof(struct gsmfr_preproc_state));
+	if (st)
+		gsmfr_preproc_reset(st);
+	return st;
+}
+
+void gsmfr_preproc_reset(struct gsmfr_preproc_state *st)
+{
+	memset(st, 0, sizeof(struct gsmfr_preproc_state));
+	st->cn_random_lfsr = PN_INITIAL_SEED;
+}