Ancillary data consists of additional information accompanying main audio and video signals. Examples include closed captioning, subtitles, timecode, metadata, and slate information. Similar to other components in the SMPTE ST 2110 suite, SMPTE ST 2110-40 specifies how ancillary data is packetized for transmission. It also provides mechanisms for identifying and routing ancillary data streams within an IP network, ensuring efficient management and organization of supplementary ancillary data packets in a media production environment.
