MODUK DEF STAN 00-082: PART 1 PDF

The aim of the Vetronics Infrastructure for Video Over Ethernet (VIVOE) standard is to promote the interoperability of present and future land platform digital video and audio distribution systems. A VIVOE network is used for the distribution of digital video within a Vetronics system, although, as an option, the incorporation of limited data (e.g. video metadata) distribution on the same network may be implemented. However, the standard is not intended to be used to transfer general Vetronics type data on the network and using it to transfer Vetronics data may impact the real-time performance of the video system.

The standard describes the mechanisms and protocols that are employed to facilitate the distribution and control of digital video and data. The system specified is based on Ethernet as the network technology and all the protocols and mechanisms selected are open, widely used network standards. This standard does not define any new protocols but provides guidance on how the selected protocols and mechanisms are used. For most protocols, the actual standard documentation will need to be consulted to obtain additional detailed information to implement the protocol in an actual system. This Defence Standard is therefore used as the starting point when designing and implementing a VIVOE system although, in the event of an inconsistency between this standard and a referenced standard, then Def Stan 00-082 takes precedence.

Not all parts of the standard will need to be implemented for every system. The particular features and functions of the standard that are used for a particular implementation are system-defined on a project by project basis via a valid systems engineering approach.

Purpose

The Vetronics Infrastructure for Video Over Ethernet (VIVOE) standard describes the mechanisms and protocols that are employed to implement the distribution of digital video and audio over an Ethernet infrastructure. This standard also facilitates, as an option, the distribution of other data on the same network.

The standard includes the provision for multiple service providers (individual video and audio sources) to access the network infrastructure and for multiple service users (displays and audio processors) to receive the information from the network infrastructure. The distribution of video, audio or data from one service provider to one or many service users is supported.

The fundamental transport protocol used is Real-time Transport Protocol (RTP), which allows numerous defined video and audio payload formats, including both uncompressed and compressed formats. The standard currently supports the distribution of digital video in a number of different formats including uncompressed video, Joint Picture Experts Group (JPEG) 2000 compressed video and Moving Picture Expert Group (MPEG) 4 compressed video.

The protocols selected for inclusion in the standard do not restrict it to just these video formats, as other RTP video payload formats can be adopted and added in future versions. This will allow a VIVOE system to exploit new digital video and audio formats as they emerge and as RTP payloads profiles are defined for them through the Request for Comment (RFC) process maintained by the Internet Engineering Task Force (IETF).

The standard also specifies the methods used to incorporate session control using Simple Network Management Protocol (SNMP) and the distribution of limited metadata within the video stream.