--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgsmhr1/paramval_cod.c	Sun Aug 25 19:00:03 2024 +0000
@@ -0,0 +1,19 @@
+/*
+ * The function implemented in this module examines a frame of 20 int16_t words
+ * that corresponds to GSM-HR encoder output format, and checks if the unused
+ * upper bits of each int16_t word are cleared as they should be.
+ * This function should be used when reading from ETSI-format *.cod files,
+ * to guard against reading garbage or wrong endian.
+ */
+
+#include <stdint.h>
+#include "tw_gsmhr.h"
+
+int gsmhr_check_encoder_params(const int16_t *params)
+{
+	if (params[18] & 0xFFFE)
+		return -1;
+	if (params[19] & 0xFFFE)
+		return -1;
+	return gsmhr_check_common_params(params);
+}