基于嵌入式的车载多媒体软件开发

摘要

设计了一种基于嵌入式系统的高清晰、便携式的车载播放系统。该播放系统的软件设计以Mplayer为后台，实现对音视频文件的解码播放等工作，并以Qt的基础类库为基础设计了嵌入式多媒体播放器的前端控制图形界面，通过创建QProcess进程，实现对播放过程的控制，与后台Mplayer进行通信，实时获取并显示播放信息，并在指定窗口对音视频码流进行输出显示。%A highly definite and portable vehicle⁃mounted broadcast system based on embedded system was designed. The software design of this broadcast system takes Mplayer as the background to realize the decoding and broadcast work of the audio and video files. The front⁃end control graphical interface of the embedded multimedia player was designed based on Qt foundation class library. The QProcess process was established to control the broadcast process,communicate with background Mplayer,acquire and display the broadcast information in real time,and output and display the audio and video code stream at the specified window.