IP化超高清视频解析和监测系统设计及实现

Design and implementation of IP-based ultra-high-definition vid⁃ eo analysis and monitoring system

随着超高清视频的发展,制播环节全IP化是广电技术系统发展的未来。本文通过分析由ST 2110-20 IP网关封装的基带视频流数据包,在软件方面实现了视频流的正常解析播放,增强了通用性,打破了IP网关解析的硬件壁垒,更利于视频流的监测。本文提出一种IP化超高清视频解析和监测系统软件设计及实现方法,重点介绍其中的阻塞队列长度设计和多线程并发实现视频解析播放方法。最后,通过丢包率、帧频分布、帧间隔分布、首包处理时延、端到端时延5个监测技术指标对比和主观画面观看效果,来分析视频阻塞队列长度设计、系统设计及实现效果。

With the development of ultra-high-definition video,all-IP production and broadcast links are the future of the development of radio and television technology systems.This paper analyzes the baseband video stream data packet encapsulated by ST 2110-20 IP gateway,realizes the analysis and playback of the video stream in software,enhances versatility,breaks the hardware barrier of IP gateway analysis,and is more conducive to the monitoring of video stream.This paper proposes a software design and implementation method for an IP-based ultra-high-definition video analysis and monitoring system,focusing on the design of the blocking queue length and the method of multi-threaded concurrent implementation of video analysis and playback.Finally,analyze the video blocking queue length design,system design and implementation effect through the comparison of 5 monitoring technical indicators of packet loss rate,frame rate distribution,frame interval distribution,first packet processing delay,end-to end delay,and subjective picture viewing effects.