Estendendo o uso das classes de dispositivos Ginga-NCL

• Carlos Eduardo C. F. Batista PUC-Rio
• Luiz Fernando Gomes Soares PUC-Rio
• Guido Lemos de Souza Filho UFPB

Abstract

Digital TV applications are able to use the resources made available by the devices connected to the Digital TV receiver through a Home Area Network (HAN). That brings advanced features to the Digital TV environment, since such devices may offer media display resources, multiple interaction mechanisms, amongst other features. NCL (Nested Context Language), which is the core language of Ginga-NCL Digital TV middleware, is provided with mechanisms for the distributed reproduction of its applications, so that multiuser applications can be developed, redefining the single user/remote control relationship. Using a hierarchical model for the application distribution and an abstraction for grouping devices (called device classes), it is possible to orchestrate the usage of the resources provided by the connected devices. This work aims to extend the original model proposed for the Ginga-NCL middleware, so that it can be made compatible with the different technologies used for device integration, such as UPnP and OSGi.