Title :
Power Optimization for Mobile MPEG-4 Video Decoder
Author :
Pakdeepaiboonpol, Pairoj ; Kittitornkun, Surin
Author_Institution :
Dept. of Comput. Eng., KMITL, Bangkok
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;
Conference_Titel :
Information, Communications and Signal Processing, 2005 Fifth International Conference on
Conference_Location :
Bangkok
Print_ISBN :
0-7803-9283-3
DOI :
10.1109/ICICS.2005.1689235
