5G+电视现场直播系统的优化  

Optimization of 5G+Live TV Broadcasting System

作　　者：王勇 WANG Yong(Zhumadian Radio and Television Station,Henan Province,Zhumadian 463000,China)

机构地区：[1]河南省驻马店广播电视台,河南驻马店463000

出　　处：《电视技术》2022年第10期217-221,225,共6页Video Engineering

摘　　要：针对电视新闻现场直播系统存在的问题,结合现有用户的实际需求,通过使用渐进视频帧缓冲技术、RTCP反馈拥塞控制,对“5G+电视现场直播”系统进行优化。在该系统中使用移动视频采集终端、RedbridgeII板卡、H.264压缩技术等,提出电视直播系统的卡片框架自适应与信道传输优化方法、直播影像质量提高方法等。经过测试,所提方法降低了传输过程对直播系统CPU的占用率、提高了传输的流畅度,并能够降低传输影像非线性失真的概率,确保电视现场直播影像质量。To address the problems of live TV news broadcasting system,this paper optimizes the“5G+Live TV”system by using progressive video frame buffering technology and RTCP feedback congestion control,taking into account the actual needs of existing users.The system uses mobile video capture terminal,RedbridgeII board,H.264 compression technology,etc.,and proposes card frame adaptation and channel transmission optimization method for live TV system,and live video quality improvement method.After testing,the proposed method reduces the CPU occupancy of the live broadcast system during transmission,improves the smoothness of transmission,and can reduce the probability of non-linear distortion of the transmitted images to ensure the quality of live TV images.

关 键 词：5G技术 直播 开发 搭建 

分 类 号：TN948.13[电子电信—信号与信息处理]