Set key with value as metadata in klass.
Same as Element.classAddMetadata, but value must be a static string or an inlined string, as it will not be copied. (GStreamer plugins will be made resident once loaded, so this function can be used even from dynamically loaded plugins.)
the key to set
the value to set
Set key with value as metadata in klass.
Same as Element.classAddMetadata, but value must be a static string or an inlined string, as it will not be copied. (GStreamer plugins will be made resident once loaded, so this function can be used even from dynamically loaded plugins.)