Title :
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
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;
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
DOI :
10.1109/ICCIMA.1999.798563
