Proposição de um simulador ginga-ncl para dispositivos portáteis

Abstract

The development of interactive content for digital TV systems involves a process that requires the use of several tools, among which stand out tools for editing, multiplexing, and presenting interactive content. When developing interactive applications for portable devices, such as cell phones, it is important to consider unique characteristics of those presentation environments, which may vary between different screen sizes, different data input mechanisms, support for interactive channel, among others. The research conducted in this study focused on presentation environments for interactive applications designed to run on portable receivers in accordance with the Brazilian Digital TV System. The proposed simulator, Simulador Ginga-NCL para Dispositivos Portáteis (SGDP) -- Ginga-NCL Simulator for Handhelds Devices -- includes essential features necessary for simulating a interactive application presentation environment. Tuning oneseg TV signal, extraction of interactive content from transport stream, Lua scripts interpretation, and NCL applications presentation control, are examples of essential features contemplated by SGDP. Additionally, the proposed simulator logs information about the processing and presentation of interactive content for further analysis by developers. The Symbian platform was chosen for implementation of SGDP, and systemic tests were performed to validate the tool.