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计算机工程 ›› 2006, Vol. 32 ›› Issue (20): 233-234. doi: 10.3969/j.issn.1000-3428.2006.20.086

• 多媒体技术及应用 • 上一篇    下一篇

H.246/AVC中的码率控制方案及算法实现

赵平芳,刘冀伟,李 擎   

  1. (北京科技大学信息工程学院,北京 100083)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-10-20 发布日期:2006-10-20

A Rate Control Idea and Algorithm Realization for H.264/AVC

ZHAO Pingfang, LIU Jiwei, LI Qing   

  1. (School of Information Engineering, Beijing University of Science and Technology, Beijing 100083)
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-10-20 Published:2006-10-20

摘要: H.264/AVC是一种先进的视频编码标准,码率控制作为视频编码和网络传输的一项重要技术在H.264的应用中必不可少。提出了一种基于JVT-G012的H.264码率控制方案及其算法实现,对JVT-G012框架中用于调整宏块层比特量的二次模型作了修改,提出了一种更加简洁的比特量控制算法,使得控制算法对其控制参数初始值的设定依赖很小,可自动根据编码序列的复杂程度自适应地调整控制参数。

关键词: H.264, 码率控制, CBR

Abstract: H.264 is the most advanced algorithm for video transmission and rate control technology is necessary and important to it. In this paper, a new algorithm based on JVT-G012 is proposed. The good of it is its ease and effectiveness to allocate bits for the macroblocks and the less relation to the setting of the coefficients because it can adjust the coefficients automatically according to the pictures being encoded.

Key words: H.264, Rate control, CBR