On speed optimization of MPEG-4 decoder for real-time multimedia applications

Author

Hovden, Gunnar ; Ling, Nam

Author_Institution

Comput. Eng. Dept., Santa Clara Univ., CA, USA

fYear

1999

fDate

1999

Firstpage

399

Lastpage

402

Abstract

In this paper, we present several speed optimizing techniques in our MPEG-4 video decoder for real-time multimedia applications. Accessor functions and a simple data structure are used. The use of pointers is minimized. Fast algorithms and fixed-point arithmetic are applied whenever possible. Memory accesses are kept to the minimum. Our results show that our software can decode and display MPEG-4 QCIF videos about eight times faster than the existing MoMuSys decoder

Keywords

data structures; decoding; fixed point arithmetic; multimedia systems; optimisation; real-time systems; video codecs; video coding; MPEG-4 video decoder; MoMuSys decoder; QCIF videos; accessor functions; data structure; fast algorithms; fixed-point arithmetic; memory accesses; pointers; real-time multimedia applications; speed optimization; video display speed; Application software; Data structures; Decoding; Displays; Fixed-point arithmetic; Floating-point arithmetic; Hardware; Internet; MPEG 4 Standard; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Intelligence and Multimedia Applications, 1999. ICCIMA '99. Proceedings. Third International Conference on

Conference_Location

New Delhi

Print_ISBN

0-7695-0300-4

Type

conf

DOI

10.1109/ICCIMA.1999.798563

Filename

798563