LuaScript

A Lua script to run to determine whether a record or group of records is included in the output from the ESP task.

Specify one of the following:

  • the absolute path to the Lua script file.
  • the path to the Lua script file, relative to the LuaDirectory.
  • a string that matches one of your AdditionalDataLabels, (if you use the AdditionalData and AdditionalDataLabels action parameters to upload the Lua script file as part of the Process action).

The script must define a function with the name pred. The function must return either true or false.

The response to the result of the function depends on the type of ESP task.

ESP task Result if the function returns true
And / AndThen The group of records is included in the engine output track.
AndAny / AndThenAny The record in the Input0 track is included in the output. (Records from the other tracks are never included in the output).
AndNot / AndNotThen The record in the Input0 track is discarded. (Records from the other tracks are never included in the output).
Combine The record is combined with the record in the Input0 track, so that it is included in the result when the record from Input0 is output.
Deduplicate The second record is discarded.
Filter The record is included in the engine output track.

For more information about writing Lua scripts for event stream processing, refer to the Media Server Administration Guide.

Type: String
Default:  
Required: No
Configuration Section: TaskName
Example: LuaScript=breakingnews.lua
See Also: