23.3 EXPERIMENT SETTING
23.3.1 Experiment Environment
We used Xvid, DivX5, DivX3 (open source edition), MS MPEG-4 v2 (Microsoft MPEG-4 version2), H.263+, WMV2 (Windows Media Video V8), and WMV3 (Windows Media Video V9) as compression encoders on SUPER©(Simplified Universal Player Encoder & Renderer) (Figure 23.1). SUPER© is free software developed by eRightSoft and it supports a lot of media formats [9].
Figure 23.1 SUPER9©.
We used TCPMP (The Core Pocket Media Player) shown in Figure 23.2 as the media player 10. The process of encoding and decoding is shown in Figure 23.3.
The video file is encoded from the source of the film (DVD) by SUPER©, loaded on the handheld device and then replayed or decoded by TCPMP. We measured the electricity consumed while playing the video stream.
Figure 23.2 TCPMP.
Figure 23.3 The process of encoding and decoding.
23.3.2 Experiment Setup
The experiment setup is shown in Figure 23.4. In the experiments, an Acer n300 PDA was used, which has a 400 MHz Samsung S3C2440 processor (with 64 MB ROM and 64 MB SDRAM) and has Microsoft® Windows Mobile™ Version 5.0 as its operating system 11. In order to measure the power consumption, we removed the battery from ...
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