摘要
针对高清视频的实时转码需求,提出一种基于多核处理器的并行视频转码算法。在确定转码系统所需核数的基础上,采用功能划分和数据划分相结合的方法对转码器进行划分,通过优化核间数据交互,实现MPEG2到H.264的高清视频转码。实验结果表明,该算法能提高转码模块的并行程度以及数据交互性能。
For the requirement of liD video lranseoding, a multi-core parallel transcoding algorithm is proposed. The number of the core used in the system is identified. The transcoder is divided through the function modules and data. The data interaction between cores is optimized, and a real time transcoding of HD video from MPEG2 to H.264 is realized. Experimental results indicate that the algorithm improves the parallelization and data interaction.
出处
《计算机工程》
CAS
CSCD
2012年第13期244-246,250,共4页
Computer Engineering
基金
浙江省级重点科技创新团队基金资助项目(2011R09021-06)
关键词
多核处理器
视频转码
功能模块
并行算法
H
264标准
加速比
multi-core processor
video transcoding
function module
parallel algorithm
H.264 standard
speedup ratio
