Parallel Deblocking Filter for H.264/AVC on the TILERA Many-Core Systems

被引：0
|
作者：
Yan, Chenggang [1 ]
Dai, Feng [1 ]
Zhang, Yongdong [1 ]
机构：
[1] Chinese Acad Sci, Inst Comp Technol, Multimedia Comp Grp, Beijing, Peoples R China
来源：
ADVANCES IN MULTIMEDIA MODELING, PT I | 2011年 / 6523卷
关键词：
Video decoding; H.264/AVC; Deblocking filter; Parallel algorithm; Many-core systems;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
For the purpose of accelerating deblocking filter, which accounts for a significant percentage of H.264/AVC decoding time, some studies use wavefront method to achieve the required performance on multi-core platforms. We study the problem under the context of many-core systems and present a new method to exploit the implicit parallelism. We apply our implementation to the deblocking filter of the H.264/AVC reference software JM15.1 on a 64-core TILERA and achieve more than eleven times speedup for 1280*720(HD) videos. Meanwhile the proposed method achieves an overall decoding speedup of 140% for the HD videos. Compared to the wavefront method, we also have a significant speedup 200% for 720*576(SD) videos.
引用
收藏
页码：51 / 61
页数：11
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