说明：  本文以无线多媒体终端项目的需求为背景，提出了一种适用于嵌入式系统的媒体播放 器架构设计方案。论文给出了一种嵌入式系统中音视频同步的解决方案，有效的提高了嵌入 式媒体播放器软件的音视频同步性能，在此基础上设计并实现了基于 Linux/Qt 的嵌入式媒 体播放器，实现了基于 Qt 的嵌入式媒体播放器系统。
( In this thesis, based on the requirement of wireless multimedia terminal system, through comparison of structure features of several popular media players, the author proposes a framework for embedded media player. Also with emphasis on analysis of the existing audio and video synchronization algorithms in MPEG-2, this method can enhance the performance of audio and video synchronization of embedded media player. On this basis, the author designs and makes media player based on Qt and embedded system. )