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What is SMPTE ST 2022-6 and ST 2022-7?

Category: FAQ

Released: 2019-04-10

SMPTE ST 2022-6 is a standard from the Society of Motion Picture and Television Engineers (SMPTE) that describes how to send digital video over an IP network.

SMPTE ST 2022-6 is simply IP packetized SDI. The complete SDI signal, including the contents of the blanking, is packetized.

Frequently, extra data is carried in the horizontal and vertical blanking of the SDI signal – such as:

• embedded audio

• standard metadata used in most applications such as timecode

• standard metadata used in some applications such as closed captioning

• nonstandardized metadata, like camera metadata/camera position

Because the complete SDI data stream is packetized, including contents of blanking, this data is transparently transported in the single S2022-6 stream along with video and audio.

Io IP supports:

• ST 2022-6: Transport of High Bit Rate Media Signals over IP Networks (HBRMT)

The term High Bit Rate is used to distinguish from other Media-over-IP applications in which compressed signals are transported. The uncompressed signals are at rates of 270 Mb/sec and higher.  

• ST 2022-7: Seamless Protection Switching of SMPTE ST 2022 IP Datagrams

For redundancy and performance, a second identical copy of the data is sent or received. This can mitigate the loss of an entire “leg” of the network infrastructure, as well as an alternative path to pick up packets that may have for some reason not arrived.

Related Product(s): Io IP