IP网络架构下无压缩4K视频码流的PTP同步信号解析  

The Analysis of PTP Synchronization Signal for Uncompressed 4K Video Stream under IP Network Architecture

作　　者：张骥 刘中华 王强 ZHANG Ji;LIU Zhonghua;WANG Qiang(Xizang Radio and Television Station,Lhasa Xizang 850000)

机构地区：[1]西藏广播电视台,西藏拉萨850000

出　　处：《中国科技纵横》2024年第14期49-51,共3页China Science & Technology Overview

摘　　要：随着网络技术的发展,数据码流传输模式逐步由SDI架构过渡至IP化架构,简化了网络结构,提升了传输效率,但同时对发射端和接收端的同步问题提出了更高要求。本文针对IP网络架构下无压缩4K视频码流的同步问题,基于PTP协议对同步信号和RTP信号进行解析,进一步理清RTP和PTP协议协同工作时视频码流时钟与源时钟的同步关系。With the development of network technology,the data stream transmission mode is gradually transitioning from SDI architecture to IP architecture,simplifying the network structure and improving transmission efficiency.However,at the same time,higher requirements are put forward for synchronization between the transmitting and receiving ends.This article focuses on the synchronization problem of uncompressed 4K video streams under IP network architecture.Based on the PTP protocol,the synchronization signal and RTP signal are analyzed to further clarify the synchronization relationship between the video stream clock and the source clock when RTP and PTP protocols work together.

关 键 词：IP网络 4K超高清 视频码流 PTP协议 同步信号 

分 类 号：TN919.1[电子电信—通信与信息系统]