Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2007, Vol. 30 ›› Issue (3): 117-121.doi: 10.13190/jbupt.200703.117.huangxj

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Optimization and implementation for H.264 decoding algorithm on BREW

HUANG Xiao-jun1,LI Zong-lin1,YANG Xiao-lai2   

  1. 1.School of Telecommunication Engineering,Beijing University of Posts and Telecommunications, Beijing 100876, China;
    2.Beijing Starhitel Technologies Inc.,Beijing 100088,China
  • Received:2006-06-07 Revised:1900-01-01 Online:2007-06-30 Published:2007-06-30
  • Contact: HUANG Xiao-jun

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Abstract:

A high speed software decoder based on BREW platform was proposed. The decoding algorithm for H.264 was improved. The whole architecture, memory allocation and key functions of the code transplanted to BREW platform were recomposed and optimized. Experimental results show that, on the premise of guaranteeing the video quality, this decoder implemented on mobile terminal using Arm9 chip meets the requirements of continuous playing.

Key words: H.264,decoding speed,playing speed,BREW.

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