# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1718665257 0
# Node ID dc7249923b3a9d76e4fbced280330534fd975ed7
# Parent  cc3a831712a47f53a17b516058ec4037fe58442c
libgsmhr1: implement TW-TS-002 output

diff -r cc3a831712a4 -r dc7249923b3a libgsmhr1/Makefile
--- a/libgsmhr1/Makefile	Sat Jun 15 06:52:37 2024 +0000
+++ b/libgsmhr1/Makefile	Mon Jun 17 23:00:57 2024 +0000
@@ -1,4 +1,4 @@
-OBJS=	pack_frame.o rtp_in.o twts002_in.o unpack_frame.o
+OBJS=	pack_frame.o rtp_in.o twts002_in.o twts002_out.o unpack_frame.o
 HDRS=	tw_gsmhr.h
 LIB=	libgsmhr1.a
 
diff -r cc3a831712a4 -r dc7249923b3a libgsmhr1/twts002_out.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgsmhr1/twts002_out.c	Mon Jun 17 23:00:57 2024 +0000
@@ -0,0 +1,14 @@
+/*
+ * The function implemented in this module converts the output of HRv1
+ * speech encoder into an RTP payload per TW-TS-002, which in this
+ * particular case is also a valid RFC 5993 payload.
+ */
+
+#include <stdint.h>
+#include "tw_gsmhr.h"
+
+void gsmhr_encoder_twts002_out(const int16_t *params, uint8_t *payload)
+{
+	payload[0] = params[19] ? 0x00 : 0x20;
+	gsmhr_pack_ts101318(params, payload + 1);
+}