Power Optimization for Mobile MPEG-4 Video Decoder

Author

Pakdeepaiboonpol, Pairoj ; Kittitornkun, Surin

Author_Institution

Dept. of Comput. Eng., KMITL, Bangkok

fYear

0

fDate

0-0 0

Firstpage

1155

Lastpage

1159

Abstract

Most compiler optimization techniques concern most about speed. In this paper, we present two high-level power/energy optimization methods for ARM-based battery-powered embedded multimedia systems, e.g. mobile phones, pocket PCs, personal multimedia systems, etc. The experiments using MPEG-4 simple profile level 0 (SP@L0) video decoder on ARM920T with two QCIF video sequences 15 fps, 24 kbps show that the proposed techniques can complement the existing speed-oriented ones to achieve lower energy/power consumption up to 13% relative to all ARM C++ optimization levels despite the 16-KB instruction and 16-KB data caches of ARM 920T core

Keywords

C++ language; data compression; embedded systems; image sequences; mobile communication; multimedia systems; optimisation; program compilers; video coding; ARM C++ compiler optimization; ARM-based embedded multimedia system; ARM920T processor; QCIF video sequence; mobile MPEG-4 video decoder; power-energy optimization method; Decoding; Energy consumption; MPEG 4 Standard; Multimedia systems; Optimization methods; Optimizing compilers; Power engineering and energy; Power engineering computing; Reduced instruction set computing; Smart phones; ARM; low power; power consumption; power optimization;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing, 2005 Fifth International Conference on

Conference_Location

Bangkok

Print_ISBN

0-7803-9283-3

Type

conf

DOI

10.1109/ICICS.2005.1689235

Filename

1689235