commit 1a1bd4ad3742d43b9ef362bdeae6d3cb6f27865e
author Michael Tretter <m.tretter@pengutronix.de> Sun Jul 01 15:27:32 2018 -0400
committer Jonas Larsson <ljonas@google.com> Tue Nov 17 13:30:45 2020 -0800
tree c6c868ab274791775896f9e57afed18424b27109
parent e8aa09f4db67dc202b02d38679fd74a732fac38e

v4l2transform: Implement stable element name

The first converter to be found will now gain the name v4l2convert.
Other converters will be named after the m2m dev node end point they are
attached to.

https://bugzilla.gnome.org/show_bug.cgi?id=784958

sys/v4l2/gstv4l2transform.c

diff --git a/sys/v4l2/gstv4l2transform.c b/sys/v4l2/gstv4l2transform.c
index 2f01375..a9294e2 100644
--- a/sys/v4l2/gstv4l2transform.c
+++ b/sys/v4l2/gstv4l2transform.c
@@ -1192,7 +1192,10 @@
   type_info.class_data = cdata;
   type_info.instance_init = gst_v4l2_transform_subinstance_init;
 
-  type_name = g_strdup_printf ("v4l2%sconvert", basename);
+  if (g_type_from_name ("v4l2convert") != 0)
+    type_name = g_strdup_printf ("v4l2%sconvert", basename);
+  else
+    type_name = g_strdup ("v4l2convert");
   subtype = g_type_register_static (type, type_name, &type_info, 0);
 
   if (!gst_element_register (plugin, type_name, GST_RANK_NONE, subtype))