Proposta de Solução de HW/SW para o Módulo de Transformadas de um Codificador H.264/SVC

• Ronaldo Husemann UFRGS
• Eduardo Eick UFRGS
• Mariano Majolo UFRGS
• Daniel Santos UFRGS
• Victor Guimarães UFRGS
• Valter Roesler UFRGS
• José Valdeni de Lima UFRGS
• Altamiro Amadeu Susin UFRGS

Abstract

This paper proposes a hybrid solution of hardware/software cooperation aiming efficient scalable H.264/SVC encoder implementation. Scalable solutions generate complex multi-layer streams, resulting in additional computational demands and latency delays when compared to single-layer alternatives, due to increased amount of resources needed to handle inherent interlayer data dependency. In the proposal, a hardware FPGA board executes the high-demanding computational algorithms, while the software is responsible for external interface management and overall system control. Besides that, the paper suggests optimized hardware modules specially designed to improve the performance of critical algorithms, like DCT and Hadamard.