Ginga-NCL: the declarative environment of the Brazilian digital TV system

Journal of the Brazilian Computer Society

Soares, Luiz Fernando Gomes¹  Catholic University of Rio de Janeiro, Rio de Janeiro, BRAZIL¹  Rodrigues, Rogério Ferreira¹  Moreno, Márcio Ferreira¹ 

关键词: Ginga;    NCL;    middleware;    declarative environment;    digital TV;   

DOI  :  10.1590/S0104-65002007000100005

学科分类：农业科学（综合）

来源: Springer U K

【 摘 要 】

As in all main terrestrial DTV Systems, the Brazilian middleware, named Ginga, supports both declarative applications (through its presentation, or declarative, environment Ginga-NCL) and procedural applications (through its execution, or procedural, environment Ginga-J). Since hybrid applications are common, either type of Ginga application may make use of facilities of both presentation and execution application environments. This paper focuses on the presentation environment Ginga-NCL. The main Brazilian inovations are then presented, regarding the Ginga architecture, the declarative NCL language specification, the editing commands for live application production, and the transport data structure.

【 授权许可】

Unknown