ffmpeg在楼宇可视对讲系统中的应用  

Application of ffmpeg in Digital Visual Intercom System

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作  者:魏建云[1] 周卫斌[1] 吴勇[1] 姚列键 孟涛[1] 

机构地区:[1]中国船舶重工集团公司第七一八研究所,河北邯郸056027

出  处:《舰船防化》2014年第2期44-47,共4页

摘  要:目前的可视对讲系统,无论模拟或是数字系统对于音视频通话功能有以下问题:通话音视频没有存留,或只是截取通话过程中的一张照片。这在根本上影响着可视对讲系统的安全性以及事后的问题追溯性。究其原因,主要是原始音视频流数据量太大,影响传输和存储。基于此,本文提出了利用ffmpeg对可视对讲通话的音视频数据进行压缩并存储,经实验验证:1min的640X480的视频数据经压缩存储后只占约10M的空间,是原始音视频数据的约1/40,且ffmpeg压缩存储并没有增加可视对讲系统的运行负担。压缩后的视频文件有利于向主控管理中心进行传输备份,提高了可视对讲系统的安全性,便于事后的问题追溯。Whether it is analog or digital video intercom system, there were several questions for video call as follows: there is no storage or just a picture intercepted during a call. This fundamentally affects the security of video intercom system and the subsequent problem of traceability. The reason is that the original audio and video stream data is too big to transmit or store. Based on this, this paper introduces the method that ffrnpeg is used to compress the video and audio data. With experimental verification, 1 minute of 640X480 video data after compressed is only about 10M of storage space, which is about 1/40 of the original audio and video data, and the ffmpeg compressing and storage does not increase the burden of visual intercom system operation. It's easy to transmit the compressed video files to control center and this improves the security of video intercom system to be easy for back problems afterwards.

关 键 词:FFMPEG 可视对讲 视频编码 

分 类 号:TP393[自动化与计算机技术—计算机应用技术]

 

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