#GST_NAVIGATION_MESSAGE_INVALID if the message is not a #GstNavigation notification.
Navigation.messageGetType
gstvideo.types.NavigationMessageType messageGetType(gst.message.Message message)Check a bus message to see if it is a #GstNavigation event, and return the #GstNavigationMessageType identifying the type of the message if so.
Parameters
message | A #GstMessage to inspect. |
Returns
The type of the #GstMessage, or