Standard No.:	GY/T 420-2025
Chinese Name:	超高清音视频编码码流网络传输封装技术要求
Chinese Classification:	M70    Broadcasting and television equipment in general
Professional Classification:	GY    Professional Standard - Radio, Film and TV
ICS Classification:	33.160.01 33.160.01    Audio, video and audiovisual systems in general 33.160.01
Source Content Issued by:	National Radio and Television Administration
Issued on:	2025-04-03
Implemented on:	2025-4-3
Status:	valid
Target Language:	English
File Format:	PDF

本文件规定了以GY/T 299.1―2016（简称“AVS2”）、GY/T 368―2023（简称“AVS3”）、GY/T 363―2023（简称“Audio Vivid”）等方式编码的超高清音视频编码流在传输流（TS）、智能媒体传输（SMT）等网络传输协议中的封装技术要求。
本文件适用于广播电视和网络视听超高清音视频编码传输系统开发、生产、应用、测试和维护。