[ Version ( since = "0.2.0" ) ]
public void multiple_get_media_from_uri (string uri, List<KeyID> keys, OperationOptions options, SourceResolveCb callback)
Goes though all available media sources until it finds one capable of constructing a GrlMedia object representing the media resource exposed by
This method is asynchronous.
A URI that can be used to identify a media resource
List of metadata keys we want to obtain.
options wanted for that operation
the user defined callback
the user data to pass to the user callback