Various elements are assuming that the pointer matches a pad template
they know about, and also randomly created pad templates might be
missing some important information that is necessary to create a valid
pad.
For example, creating a new pad template for audiomixer's sinkpad
without providing the correct GType would cause audiomixer to create a
GstAggregatorPad. That will then later fail spectacularly because it
assumes that it got a GstAudioAggregatorPad.
Passing a pad template that does not belong to the element class in here
will easily lead to undefined behaviour.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2410>
}
#endif
+#ifdef GST_ENABLE_EXTRA_CHECKS
+ {
+ if (!g_list_find (oclass->padtemplates, templ)) {
+ /* FIXME 2.0: Change this to g_return_val_if_fail() */
+ g_critical ("Element type %s does not have a pad template %s (%p)",
+ g_type_name (G_OBJECT_TYPE (element)), templ->name_template, templ);
+ }
+ }
+#endif
+
if (oclass->request_new_pad)
newpad = (oclass->request_new_pad) (element, templ, name, caps);