ST2110OutputAncillarySenderAdvanced interface

ST 2110-40 ancillary sender. Transports SMPTE 291 VANC packets (closed captions, SCTE-104 splice commands, AFD, SMPTE 12M timecode, etc.) at the matching video session’s frame rate. On the wire the SDP advertises m=video application/smpte291 90000 — the video media type is per RFC 8331 even though the payload is data.

Pair with a sibling video sender carrying the same frameRate so downstream receivers can align ANC packets to the video frames they describe.

Signature:

export interface ST2110OutputAncillarySenderAdvanced

Properties

Property	Type	Description
frameBufferSize?	number	(Optional) MTL ring depth for outbound ANC frames. Defaults to 8 — same shape as the audio sender’s cushion (sub-millisecond pacing tasklet drain dips can starve a smaller ring under load).

Property

Type

Description

frameBufferSize?

number

(Optional) MTL ring depth for outbound ANC frames. Defaults to 8 — same shape as the audio sender’s cushion (sub-millisecond pacing tasklet drain dips can starve a smaller ring under load).