Description

Abstract

The demand for high-quality multimedia service in handheld devices has increased with the

advance of consumer electronics technologies. However, there are inherent performance limits in

such mobile devices due to low processing power, requirements for low power consumption, and

limited storage capacity. These factors have obviously prevented high-performance multimedia

services from being feasible. In addition, most of the mobile devices support distinct multimedia

data formats for video and audio codecs, bit rate, and screen size. Therefore, streaming media or

receiving data from other users’ devices essentially requires additional data translation along with

a transcoding operation. However, most of the processors that are used in mobile devices or even

in personal media servers cannot provide sufficient processing power for transcoding.