标题: | A software-hardware co-implementation of MPEG-4 Advanced Video Coding (AVC) decoder with block level pipelining |
作者: | Wang, SH Peng, WH He, YW Lin, GY Lin, CY Chang, SC Wang, CN Chiang, T 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
关键字: | MPEG-4;advanced video coding (AVC);H.264;joint video team (JVT);software-hardware co-implementation;task partition;MB level pipelining |
公开日期: | 1-八月-2005 |
摘要: | We present a baseline MPEG-4 Advanced Video Coding (AVC) decoder based on the methodology of joint optimization of software and hardware. The software is first optimized with algorithm improvements for frame buffer management, boundary padding, content-aware inverse transform and context-based entropy decoding. The overall decoding throughput is further enhanced by pipelining the software and the dedicated hardware at macroblock level. The decoder is partitioned into the software and hardware modules according to the target frame rate and complexity profiles. The hardware acceleration modules include motion compensation, inverse transform and loop filtering. By comparing the optimized decoder with the committee reference decoder of Joint Video Team (JVT), the experimental results show improvement on the decoding throughput by 7 to 8 times. On an ARM966 board, the optimized software without hardware acceleration can achieve a decoding rate up to 5.9 frames per second (fps) for QCIF video source. The overall throughput is improved by another 27% to 7.4 fps on the average and up to 11.5 fps for slow motion video sequences. Finally, we provide a theoretical analysis of the ideal performance of the proposed decoder. |
URI: | http://dx.doi.org/10.1007/s11265-005-6253-3 http://hdl.handle.net/11536/13431 |
ISSN: | 0922-5773 |
DOI: | 10.1007/s11265-005-6253-3 |
期刊: | JOURNAL OF VLSI SIGNAL PROCESSING SYSTEMS FOR SIGNAL IMAGE AND VIDEO TECHNOLOGY |
Volume: | 41 |
Issue: | 1 |
起始页: | 93 |
结束页: | 110 |
显示于类别: | Articles |
文件中的档案:
If it is a zip file, please download the file and unzip it, then open index.html in a browser to view the full text content.