Copies the list of features. Caller should call gst_plugin_feature_list_free when done with the list.
list of GstPluginFeature. [transfer none][element-type Gst.PluginFeature]
a copy of list, with each feature's reference count incremented. [transfer full][element-type Gst.PluginFeature]
See Implementation
Copies the list of features. Caller should call gst_plugin_feature_list_free when done with the list.