A 530 Mpixels/s 4096×2160@60fps H.264/AVC high profile video decoder chip

Dajiang Zhou, Jinjia Zhou, Xun He, Jiayi Zhu, Ji Kong, Peilin Liu, Satoshi Goto

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

The increased resolution of Quad Full High Definition (QFHD) offers significantly enhanced visual experience. However, the corresponding huge data throughput of up to 530 Mpixels/s greatly challenges the design of real-time video decoder VLSI with the extensive requirement on both DRAM bandwidth and computational power. In this work, a lossless frame recompression technique and a partial MB reordering scheme are proposed to save the DRAM access of a QFHD video decoder chip. Besides, pipelining and parallelization techniques such as NAL/slice-parallel entropy decoding are implemented to efficiently enhance its computational power. The chip supporting H.264/AVC high profile is fabricated in 90 nm CMOS and verified. It delivers a maximum throughput of 4096×2160@60fps, which is at least 4.3 times higher than the state-of-the-art. DRAM bandwidth requirement is reduced by typically 51%, which fits the design into a 64-bit LPDDR SDRAM interface and results in 58% DRAM power saving. Meanwhile, the core energy is saved by 54% by pipelining and parallelization.

Original languageEnglish
Article number5727920
Pages (from-to)777-788
Number of pages12
JournalIEEE Journal of Solid-State Circuits
Volume46
Issue number4
DOIs
Publication statusPublished - 2011 Apr
Externally publishedYes

Keywords

  • DRAM bandwidth
  • embedded compression
  • frame recompression
  • H.264/AVC
  • QFHD
  • ultra high definition
  • video decoder

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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