Title :
Energy optimization for mobile MPEG-4 video decoder
Author :
Pakdeepaiboonpol, P. ; Kittitornkun, S.
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, 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; decoding; mobile communication; multimedia communication; telecommunication computing; video coding; video communication; ARM; C++ optimization levels; battery-powered embedded multimedia systems; compiler optimization techniques; energy optimization; mobile MPEG-4 video decoder; video sequences;
Conference_Titel :
Mobile Technology, Applications and Systems, 2005 2nd International Conference on
Conference_Location :
Guangzhou
Print_ISBN :
981-05-4573-8
DOI :
10.1109/MTAS.2005.207157
