Title :
Low energy optimization for MPEG-4 video encoder on ARM-based mobile phones
Author :
Pakdeepaiboonpol, P. ; Kittitornkun, S.
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
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 encoder 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 5.7% relative to all ARM C++ optimization levels despite the 16-KB instruction and 16-KB data caches of ARM 920T core.
Keywords :
image sequences; mobile handsets; multimedia communication; video coding; ARM-based mobile phones; MPEG-4 video encoder; battery-powered embedded multimedia systems; low energy optimization; video sequences; Decoding; Design optimization; Energy consumption; MPEG 4 Standard; Mobile handsets; Multimedia systems; Optimization methods; Optimizing compilers; Reduced instruction set computing; Smart phones; ARM; low power; power consumption; power optimization;
Conference_Titel :
Wireless Pervasive Computing, 2006 1st International Symposium on
Print_ISBN :
0-7803-9410-0
DOI :
10.1109/ISWPC.2006.1613618
