mpegtsmux: Correctly set ISO-639 language descriptor

fixes #1340
Only 2 of the necessary 3 letters were copied because the teminating '\0'
needs to be counted, too - cf.
https://developer.gnome.org/glib/stable/glib-String-Utility-Functions.html#g-strlcat

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1375>

diff --git a/gst/mpegtsmux/tsmux/tsmux.c b/gst/mpegtsmux/tsmux/tsmux.c
index 4c1ace9..1da5cb4 100644 (file)
--- a/gst/mpegtsmux/tsmux/tsmux.c
+++ b/gst/mpegtsmux/tsmux/tsmux.c
@@ -705,10 +705,12 @@ tsmux_create_stream (TsMux * mux, guint stream_type, guint16 pid,
   mux->streams = g_list_prepend (mux->streams, stream);
   mux->nb_streams++;
 
-  if (language)
-    g_strlcat (stream->language, language, 3 * sizeof (gchar));
-  else
-    g_strlcat (stream->language, "eng", 3 * sizeof (gchar));
+  if (language) {
+    strncpy (stream->language, language, 4);
+    stream->language[3] = 0;
+  } else {
+    strcpy (stream->language, "eng");
+  }
 
   return stream;
 }