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A Pipelined 8x8 2-D Forward DCT Hardware Architecture for H.264/AVC High Profile Encoder

  • Thaísa Leal da Silva
  • Cláudio Machado Diniz
  • João Alberto Vortmann
  • Luciano Volcan Agostini
  • Altamiro Amadeu Susin
  • Sergio Bampi
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4872)

Abstract

This paper presents the hardware design of an 8x8 bi-dimensional Forward Discrete Cosine Transform used in the high profiles of the H.264/AVC video coding standard. The designed DCT is computed in a separate way as two 1-D transforms. It uses only add and shift operations, avoiding multiplications. The architecture contains one datapath for each 1-D DCT with a transpose buffer between them. The complete architecture was synthesized to Xilinx Virtex II - Pro and Altera Stratix II FPGAs and to TSMC 0.35μm standard-cells technology. The synthesis results show that the 2-D DCT transform architecture reached the necessary throughput to encode high definition videos in real-time when considering all target technologies.

Keywords

Video compression 8x8 2-D DCT H.264/AVC standard Architectural Design 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Thaísa Leal da Silva
    • 1
  • Cláudio Machado Diniz
    • 1
  • João Alberto Vortmann
    • 2
  • Luciano Volcan Agostini
    • 2
  • Altamiro Amadeu Susin
    • 1
  • Sergio Bampi
    • 1
  1. 1.UFRGS – Federal University of Rio Grande do Sul - Microelectronics Group, Porto Alegre - RSBrazil
  2. 2.UFPel – Federal University of Pelotas – Group of Architectures and Integrated Circuits, Pelotas - RSBrazil

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