北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2007, Vol. 30 ›› Issue (3): 117-121.doi: 10.13190/jbupt.200703.117.huangxj

• 研究报告 • 上一篇    下一篇

H.264在BREW上的解码算法优化及实现

黄小军1 ,李宗霖1 ,杨晓来2   

  1. 1.北京邮电大学 电信工程学院,北京 100876;2.北京星信科技,北京 100088
  • 收稿日期:2006-06-07 修回日期:1900-01-01 出版日期:2007-06-30 发布日期:2007-06-30
  • 通讯作者: 黄小军

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

摘要:

摘要:提出了基于BREW平台终端的高速软件解码器,改进了H.264的解码部分的算法,并对已移植到BREW平台上的程序代码的整体架构、内存调配和关键函数进行调整、优化和重写,实验证明,在保证视频画面质量的前提下,该解码器在Arm9处理芯片的移动终端上能达到连续播放的要求.

关键词: H.264标准, 解码速率, 播放速率、BREW.;

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.