Energy optimization for mobile MPEG-4 video decoder
Energy optimization for mobile MPEG-4 video decoder
- Author(s): P. Pakdeepaiboonpol and S. Kittitornkun
- DOI: 10.1049/cp:20051484
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- Author(s): P. Pakdeepaiboonpol and S. Kittitornkun Source: IEE Mobility Conference 2005. The Second International Conference on Mobile Technology, Applications and Systems, 2005 page ()
- Conference: IEE Mobility Conference 2005. The Second International Conference on Mobile Technology, Applications and Systems
- DOI: 10.1049/cp:20051484
- ISBN: 981 05 4571 1
- Location: Guangzhou, China
- Conference date: 15-17 Nov. 2005
- Format: PDF
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. (6 pages)
Inspec keywords: decoding; C++ language; multimedia communication; video coding; telecommunication computing; mobile communication; video communication
Subjects: Codecs, coders and decoders; Communications computing; Multimedia; Mobile radio systems; Multimedia communications; Image and video coding; Television and video equipment, systems and applications
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