Embedded Multi-Channel Video Encoder Based on DSP
To satisfy the requirement of embedded video encoder in various scenarios,an embedded multichannel video coding system based on multimedia processor-DM642 DSP is designed in this paper. For real-time application requirement,we optimize the encoder at three levels: Firstly,at algorithm level,develop some fast algorithm fitting for DSP; secondly,at system level,adjust the architecture of encoder and optimization data transfer with EDMA; thirdly,at code level,use linear assembly for key code. Experimental results show that the embedded video encoder can compress four channel CIF video data real-time.
Yao Chunlian LiWei Meng Qinglei Gao Lihua
School of Digital Content,Beijing Technology and Business University,100037 Digital Media Laboratory,School of Computer Science and Engineering,Beihang University,Beijing 10008
国际会议
The Fifth IEEE International Symposium on Embedded Computing(SEC 2008)(第五届IEEE国际嵌入式系统计算会议)
北京
英文
124-128
2008-10-06（万方平台首次上网日期，不代表论文的发表时间）