From 04ce972800928d4ea6b09801c315a3c7d99c7472 Mon Sep 17 00:00:00 2001
From: Yury Popov <dev@syncleo-iot.com>
Date: Sat, 10 Dec 2022 21:42:14 +0300
Subject: [PATCH] ssml: handle invalid break strength

---
 src/libespeak-ng/ssml.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libespeak-ng/ssml.c b/src/libespeak-ng/ssml.c
index 241841ac..fe195d08 100644
--- a/src/libespeak-ng/ssml.c
+++ b/src/libespeak-ng/ssml.c
@@ -870,6 +870,7 @@ int ProcessSsmlTag(wchar_t *xml_buf, char *outbuf, int *outix, int n_outbuf, con
 		if ((attr1 = GetSsmlAttribute(px, "strength")) != NULL) {
 			static const int break_value[6] = { 0, 7, 14, 21, 40, 80 }; // *10mS
 			value = attrlookup(attr1, mnem_break);
+			if (value < 0) value = 2;
 			if (value < 3) {
 				// adjust prepause on the following word
 				sprintf(&outbuf[*outix], "%c%dB", CTRL_EMBEDDED, value);