AMWA IS-07 NMOS Event & Tally Specification
What does it do?
- Provides an IP-friendly mechanism to carry time-sensitive information
- For example: camera tally information, audio levels, control panel button presses and status
Why does it matter?
- ST 2110 does not provide an equivalent to GPI functionality
- This leads to the danger of multiple proprietary approaches
- Consistency with other NMOS specifications
How does it work?
- Media Nodes emit and consume state and state change info
- Lightweight messages sent using WebSockets or MQTT
- Message flows connected using IS-05
See here for an overview of NMOS specifications.
The formal specification is provided in this GitHub repository. These pages provide supporting documentation and HTML renders of the APIs (which are specified in RAML and JSON Schema).
The documentation and API links immediately below, and the links in the page heading, are for an example development branch. Links to other releases (tags) and other branches appear later in the page, or under “VERSIONS…” in the page heading.
Once AMWA has approved a Specification, its documentation and API links will be for the most recent approved release (which may be earlier than what is shown by the default branch on the GitHub repo).
Documentation for release/tag v1.0.1
- Message types
- Event types
- Core models
- Event and tally rest api
- Measurement units guidelines