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计算机工程 ›› 2008, Vol. 34 ›› Issue (19): 225-227. doi: 10.3969/j.issn.1000-3428.2008.19.076

• 多媒体技术及应用 • 上一篇    下一篇

面向实时视频编码应用的控制系统

张晓波,胡薇薇,丁文锐,张其善   

  1. (北京航空航天大学电子信息工程学院,北京 100083)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-10-05 发布日期:2008-10-05

Control System for Real-time Video Encoding Application

ZHANG Xiao-bo, HU Wei-wei, DING Wen-rui, ZHANG Qi-shan   

  1. (School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-10-05 Published:2008-10-05

摘要: 从提高外设与内核并行性的角度引入流水线的思想,实现基于查询和乒乓缓冲的控制架构,针对结构中存在的问题提出改进的双级控制架构,在该架构下实现基于H.264标准的实时视频编码。实际测试表明,该系统能在保证系统稳定性的同时,有效提高编码器的编码效率。

关键词: 视频编码, 嵌入式平台, 控制架构

Abstract: With the perspective of increasing the degree of parallelism of the on-chip peripherals and the core, this paper introduces the pipeline idea, implements a control architecture based on polling and ping-pong buffers, and develops it to an improved dual-stage control architecture. H.264-based video encoder is implemented under the architecture. Practical tests show that this system can meet the requirements of real-time capability and stability in video communications.

Key words: video encoding, embedded platform, control architecture

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