基于FFmpeg的车载嵌入式流媒体终端的研究与实现  

Research and Implementation of Mobile Embedded Streaming Media Terminal Based on FFmpeg

作　　者：程伟伦 唐恒飞 Cheng Weilun;Tang Hengfei(Shanghai University of Engineering Science,Shanghai 201600,China)

机构地区：[1]上海工程技术大学,上海市201600

出　　处：《农业装备与车辆工程》2021年第8期120-122,共3页Agricultural Equipment & Vehicle Engineering

摘　　要：基于VS2017+Qt5开发环境实现一款能应用于车载的嵌入式流媒体终端。该终端采用开源的FFmpeg库解码解封装获得流式数据,基于Qt应用程序中的OpenGL库显示平面视频帧数据,对比3种音视频同步方案,解决音视频同步问题。经过测试验证,该款流媒体终端设备能够充分满足车载工作要求,系统功能稳定性良好。软件程序启动效率快并且支持多协议,视频播放流畅,音频无明显杂音存在,音视频同步功能较好。综上所述,该款跨平台的嵌入式流媒体可以很好地实现车载播放功效。Based on VS2017+Qt5 development environment,an embedded streaming media terminal which can be used in vehicle is implemented.The terminal uses the open-source FFmpeg library to decode and unpack to obtain streaming data.Based on the OpenGL library in QT application program,the flat video frame data is displayed.Three audio and video synchronization schemes are compared to solve the audio and video synchronization problem.After testing,the streaming media terminal equipment can fully meet the requirements of vehicle operation,and the system function is stable.The software program has the advantages of fast startup efficiency,multi protocol support,smooth video playback,no obvious audio noise,and good audio and video synchronization function.To sum up,the cross platform embedded streaming media can well realize the car play function.

关 键 词：流媒体 QT FFMPEG 音视频编解码 

分 类 号：U463.6[机械工程—车辆工程]