TRIGGER TGR TG

Description:

  Initiate a manual start or end event for splicing.

Form:

  Command Handler: DPID
  TRIGGER|TGR|TG <index> <preroll> <duration> [IN|OUT]
  Argument List:
  <index>      Values 0 - 11 indicate which channel to start.
  <preroll>    Number of milliseconds to wait until splice point. 
               Must be greater than 3000.
  <duration>   Maximum number of seconds to insert. 
  IN           Optional. Makes this an start event.
  OUT          Optional. Makes this an end event.

Response:

  "OK\r\n" or "0\r\n" to acknowledge receipt of command,
  "\r\n" concludes query and set responses (empty line) or

  "ERROR- [Description]\r\n" or "<error_code>\r\n" if error
  "\r\n" concludes error responses (empty line)

Examples:

  *.DPID TRG 0 7000 0
  OK\r\n
  \r\n

  *.DPID TG 0 4000 0 IN
  0\r\n
  \r\n

  *.DPID TG 0 4000 0 OUT
  0\r\n
  \r\n

Notes:

  Currently, duration is necessary, but not enforced. Duration has no meaning
  for out events.
  Out events cause the insertion to end after the current spot completes. 
  Currently, preroll has no meaning for out events.