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基于VFW的远程视频捕获技术研究

周梦婷%罗森林   

  • 基金资助:
    国家242信息安全计划项目[2005C48]、北京理工大学科技创新计划重大项目(2011CX01015)

Research on the Techniques of Remote Video Capture based on VFW

ZHOU Meng-ting%LUO Sen-lin   

  • About author:北京理工大学信息系统及安全对抗实验中心,北京,100081

摘要: 多媒体技术在人们日常生活中的应用越来越广泛,图像、视频、音频等多媒体数据逐渐成为信息处理领域中主要的信息媒体形式。视频捕获技术是信息处理中的重要环节,研究该项技术具有重要的实用价值。文章提出一种基于VFW的远程视频捕获方法。该方法利用VFW捕获视频数据,采用H.263编码标准压缩视频数据,利用面向连接协议的流式套接字实现实时视频流的传输,结合多线程技术实现视频文件播放。然后,基于Windows操作系统设计实现了远程视频捕获系统。实验结果表明,该方法CPU占用率低、内存占用小,可靠性强,具有较好的应用价值。

Abstract: The application of multimedia technology in people's daily life is becoming more and more widely. Multimedia data, which includes image, video and audio, is becoming the major information media in the ifeld of information processing. Video capture technology is an important link of information processing, and the research on it has signiifcant practical value. A remote video capture method based on Video for Windows (VFW) is put forward in this paper. The method uses VFW to capture video data, adopts H.263 coding standard to compress the data and transmits the real-time video streams by stream socket of connection-oriented protocol. It plays video ifles combined with the multi-thread technology. Then a remote video capture system based on Windows is designed and realized. The experimental results show that the method has low CPU usage, low memory usage, high reliability and good application value.