EEG caption encoder models including HD490, HD491, HD492, HD1490, and HD1452 are capable of inserting SCTE-104 messages into SDI VANC, with purchase of an add-on license.
The encoders have configurable built-in presets for a set of simple SCTE-104 "Splice Request" messages, which can be triggered with a GPI connection or from the encoder web configuration page. A selectable repeat interval allows continuous insertion of blackout triggers and similar repetitive content markers.
The EEG SCTE-104 encoders can also inject any SCTE-104 message received over TCP/IP port 5167 into the VANC space, either immediately upon receipt, or with use of an additional GPI firing trigger to support more deterministic frame synchronous injection. The TCP/IP communication method can be used for arbitrarily complex SCTE-104 messages including time signal messages with avail and segmentation descriptors.
The API for connecting to the EEG SCTE-104 encoders is described fully in the SCTE-104 standard. Use of the SCTE-104 automation-system-to-injector messages such as "Init Request" and "Alive Request" is encouraged, but can be omitted for many applications. The simplest application would involve automation or triggering software that simply opens a TCP connection to port 5167 on the encoder, sends a single packed SCTE-104 message, and then closes the connection when desired. The SCTE-104 message will appear in the VANC output of the encoder so long as it is a well-formatted multi-operation message structure according to the SCTE-104 standard.
EEG's SCTE-104 messaging has been shown to be compatible with commercially available systems from vendors including Imagine Communications ADC, Snell Advanced Media, Motorola, Florical Systems, and DNF Controls, as well as a variety of proprietary customer systems.
Please contact us with other application development questions - we may be able to help prospective customers with sample SCTE-104 generation code in a variety of programming languages, or consulting on customized shims connecting existing production databases/processes to generation of SCTE-104 messages to support new applications.