Optimization and conformance test of AVS-P7 Jiben profile decoder based on the embedded platform(基于嵌入式平台的AVS-P7 Jiben解码器优化及一致性测试)

ZHANGXiao-dong(张小栋); JINWen-guang(金文光); HUKai-liang(胡锴亮); HUJi-wei(胡骥炜)

doi:10.3785/j.issn.1008-9497.2008.04.014

Zhejiang Daxue xuebao. Lixue ban (Jul 2008)

Optimization and conformance test of AVS-P7 Jiben profile decoder based on the embedded platform(基于嵌入式平台的AVS-P7 Jiben解码器优化及一致性测试)

ZHANGXiao-dong(张小栋),
JINWen-guang(金文光),
HUKai-liang(胡锴亮),
HUJi-wei(胡骥炜)

Affiliations

ZHANGXiao-dong(张小栋): Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China(浙江大学信息与电子工程系，浙江杭州 310027)
JINWen-guang(金文光): Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China(浙江大学信息与电子工程系，浙江杭州 310027)
HUKai-liang(胡锴亮): Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China(浙江大学信息与电子工程系，浙江杭州 310027)
HUJi-wei(胡骥炜): Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China(浙江大学信息与电子工程系，浙江杭州 310027)

DOI: https://doi.org/10.3785/j.issn.1008-9497.2008.04.014
Journal volume & issue: Vol. 35, no. 4
pp. 416 – 421

Abstract

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针对手机和其他嵌入式平台特点，对AVS-P7 Jiben解码器进行了C语言级优化.通过对流缓存、指数Golomb解码、VLD码表、反量化、反变换、宏块解码、运动补偿插值等模块的优化处理，降低了运算复杂度，减少了内存开销.在S3C2440(ARM920T)平台上的测试结果表明，解码器在同等PSNR、无失真情况下比原有解码器提升了8~10倍的性能，基本满足了实时解码的需要.本文最后采用标准的AVS-P7一致性测试码流对优化后的解码器进行了一致性测试，发现同AVS标准组织提供的wm 2.7相比，测试结果更加理想.

Published in Zhejiang Daxue xuebao. Lixue ban

ISSN: 1008-9497 (Print)
Publisher: Zhejiang University Press
Country of publisher: China
LCC subjects: Science: Mathematics: Instruments and machines: Electronic computers. Computer science; Science: Physics
Website: https://www.zjujournals.com/sci/EN/1008-9497/home.shtml

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