Ginga-NCL: Declarative Middleware for Multimedia IPTV Services. Soares, L. F. G., Marcelo, M. F., Neto, C. d. S. S., & Moreno, M. F. 48:74–81, 2010.
Ginga-NCL: Declarative Middleware for Multimedia IPTV Services [pdf]Paper  doi  abstract   bibtex   4 downloads  
This article presents the innovative features of Ginga-NCL, an open middleware specifica- tion for multimedia IPTV services. Ginga-NCL relies on the Nested Context Language, a domain-specific declarative language targeting multimedia application authoring. As a glue lan- guage, NCL relates media objects in time and space without restricting or imposing any media content type, including media objects with imper- ative and declarative code written using other languages. Other NCL features include support for multidevice presentations, content adapta- tions, presentation adaptations, and advanced code reuse. Ginga-NCL allows NCL applications to be modified on the fly by means of live edit- ing commands. Initially defined as the standard middleware for the Brazilian terrestrial DTV system, Ginga-NCL has recently become part of ISDB standards and an ITU-T Recommendation for IPTV services.

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