一种基于YHFT-Matrix DSP的去块效应滤波算法的向量化实现

J4 ›› 2014, Vol. 36 ›› Issue (02): 206-210.

一种基于YHFT-Matrix DSP的去块效应滤波算法的向量化实现

李勇，陈书明，陈胜刚

（国防科学技术大学计算机学院，湖南长沙 410073）

收稿日期:2011-05-12 修回日期:2011-09-20 出版日期:2014-02-25 发布日期:2014-02-25
基金资助:
核高基重大专项资助项目(2009ZX01034001006)

Vectorizable implementation of adaptive deblocking filter on YHFT-Matrix DSP

LI Yong,CHEN Shuming,CHEN Shenggang

（College of Computer,National University of Defense Technology，Changsha 410073,China）

Received:2011-05-12 Revised:2011-09-20 Online:2014-02-25 Published:2014-02-25

摘要/Abstract

摘要：

针对H.264视频压缩编码标准中去块效应滤波器部分提出了一种基于YHFTMatrix DSP的并行设计及向量实现方法。重点对H.264协议中去块效应滤波器进行理论分析，并利用向量数据访问单元、向量处理单元、高效的混洗单元和灵活的矩阵对其进行并行算法设计。将去块滤波算法分别映射到YHFTMatrix和TI的TMS320C6415中，通过统计两者性能，表明YHFTMatrix的性能优于TMS320C6415。

关键词: H.264视频压缩编码, 去块效应滤波, 并行设计, 向量实现

Abstract:

A parallel vector implementation method for the deblocking filter in H.264 coding algorithm is mapped on the YHFTMatrix DSP. The deblocking filter is analyzed theoretically. The vector data access unit, the vector processing unit, the data shuffle unit and the flexible matrix are fully used to efficiently develop the parallelism of the deblocking filter algorithm. In experiment, the deblocking filter algorithm is mapped on both YHFTMatrix and TI TMS320C6415. And the result shows that YHFTMatrix outperforms TI TMS320C6415.

Key words: H.264 video coding；deblocking filter；parallel design；vectorizable implementation

李勇，陈书明，陈胜刚. 一种基于YHFT-Matrix DSP的去块效应滤波算法的向量化实现[J]. J4, 2014, 36(02): 206-210.

LI Yong,CHEN Shuming,CHEN Shenggang. Vectorizable implementation of adaptive deblocking filter on YHFT-Matrix DSP [J]. J4, 2014, 36(02): 206-210.