多路视频硬件压缩与传输系统设计与实现

Design and Implementation of Multiple-Channel Video Hardware Compression and Transmission System

传统的视频监控系统存在可靠性低、视频压缩耗费资源大、网络传输时延高以及灵活性差等问题,难以满足工业要求。基于此,提出了一种基于全志T7的四路视频硬件压缩与传输系统,以国产全志T7为硬件平台,以Linux 3.1.0为软件平台。首先接入4路AHD摄像头并基于V4L2采集视频数据,其次利用全志T7硬件资源对视频数据进行H.264压缩,最后通过RTSP协议进行视频的网络推流传输。试验结果表明,该系统具有稳定性高、灵活性高、可多方位远距离布置4路摄像头、CPU占用率低以及视频时延低等优势,可以应用在环境恶劣或对视频实时性要求较高的场景。

Traditional video surveillance systems have problems such as low reliability,high resource consumption for video compression,high network transmission delay,and poor flexibility,making it difficult to meet industrial requirements.Based on this,a four-channel video hardware compression and transmission system based on Allwinner T7 is proposed.The domestic Allwinner T7 is used as the hardware platform and Linux 3.1.0 is used as the software platform.First,connect 4 channels of AHD cameras and collect video data based on V4L2,then use Allwinner T7 hardware resources to compress the video data in H.264,and finally carry out network push streaming transmission of video through RTSP protocol.The test results show that the system has the advantages of high stability,high flexibility,4 cameras can be arranged in multiple directions and long distances,low CPU usage and low video delay,etc.It can be used in harsh environments and high requirements for video real-time performance scene.