基于ARM的视频采集与处理系统的开发

Development of the video capture and process system based on ARM

介绍了一种基于S3C2440硬件平台,在Linux 2.6.32内核操作系统下采用V4L2架构进行视频采集与处理的总体设计方案,通过移植开源的H.264视频编解码器对视频信号进行压缩编码,并采用RTP流媒体传输协议传输给客户端,完成对现场的网络视频监控任务。实验结果表明,该系统采集到的图像清晰,显示比较流畅,经H.264编码的视频帧数据量小,网络传输异常情况下的视频存储正常,可以适用于不同场合尤其是对带宽要求比较高的场合。

This article introduces an overall scheme of video collecting and processing based on S3C2440 hardware platform,by using V4L2 framework in the Linux 2.6.32 kernel.It supervises remote scene through network by transporting the video signals,which have been compressed and encoded by transplanted open source video codec—H.264,to the client,using the streaming transmission protocol RTP.The experimental results show that the collected image is clear and video is fluent.The quantity of frame data processed by H.264 encoder is small.The video can be stored normally in exceptional cases.This system can be applied in different occasions,especially those requires for high bandwidth.