Add a reference to a GstTagList mini object.
From this point on, until the caller calls gst_tag_list_unref() or
gst_tag_list_make_writable(), it is guaranteed that the taglist object will
not change. To use a GstTagList object, you must always have a refcount on
it -- either the one made implicitly by e.g. gst_tag_list_new(), or via
taking one explicitly with this function.
Add a reference to a GstTagList mini object. From this point on, until the caller calls gst_tag_list_unref() or gst_tag_list_make_writable(), it is guaranteed that the taglist object will not change. To use a GstTagList object, you must always have a refcount on it -- either the one made implicitly by e.g. gst_tag_list_new(), or via taking one explicitly with this function.