WAVEFRONT PARALLEL PROCESSING BASED ON POSIX THREADS

被引：0

作者：

Zhou, Xin ^{[1
]}

Wang, Jian ^{[1
]}

机构：

[1] Nanjing Univ, Sch Elect Sci & Engn, Nanjing, Jiangsu, Peoples R China

来源：

2016 IEEE INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS-CHINA (ICCE-CHINA) | 2016年

关键词：

HEVC; WPP; parallelism; POSIX threads; multicore processor; VIDEO CODING HEVC; EFFICIENCY; STANDARD;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

To cope with the significant computational complexity introduced by High Efficiency Video Coding (HEVC) standard, several parallelization schemes are introduced, such as Tiles, Wavefront parallel processing(WPP) and Dependent slice segments. These coding structures make multi-core processing possible. In this paper, we analyzed the degree of parallelism WPP can achieve and then proposed a multi-threaded encoder implementation based on WPP by using POSIX Threads. Experimental results show that the speedup of parallel encoding using WPP can reach about 3.4 times on quad core processor when encoding a 1080p video sequence.

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页数：5

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