简介尽管网络系统在基于文件的应用中已经变得很常见，但直到最近，将网络技术应用到对实时处理有强烈要求的实时生产应用中还是很困难的。然而，随着网络技术的持续快速发展，现在有一种趋势是将网络系统用于实时生产应用。本RDD描述了一种基于IP的传输机制（以下简称“IP映射”），主要用于实时生产应用。1范围本RDD定义了IP映射，其中包括以下主要特征: 1.本质独立映射每个本质（视频、音频和辅助数据）都可以独立处理。2.可以根据应用要求选择使用FEC和/或无故障适当保护的数据包保护。3.essence和FEC的帧边界感知映射可以在essence和FEC中执行帧精确处理。4.支持高达4K的未压缩和压缩视频未压缩视频或压缩视频可根据需要无缝选择高达4K的视频 应用要求。

IntroductionAlthough network systems have become common in file-based applications, until recently it has been difficult to apply networking technologies to live production applications in which there is a strong requirement for real-time processing.However, with the continuing rapid evolution of networking technologies, there is now a trend towards the use of networked systems for live production applications.This RDD describes an IP-based transport mechanism (referred to hereafter as `IP mapping') intended mainly for live production applications.1 ScopeThis RDD defines the IP mapping which includes the following main characteristics:1. Essence-independent mappingEach essence (video, audio and ancillary data) can be dealt with independently.2. Packet protection using FEC and/or hitless failoverAppropriate protection can be chosen according to application requirements.3. Frame-boundary-aware mapping for both essence and FECFrame accurate processing can be performed in both essence and FEC.4. Support for up to 4K uncompressed and compressed videoEither uncompressed video or compressed video can be chosen up to 4K video seamlessly according to application requirements.