adding callback notify for audio/video clip end

[Anonymous]

so fairly new to ORSDK having migrated from python. I have a few custom relation constraint nodes that deal with the triggering of audio and image sequences from a custom device. I basically have an input anim node (bool) for each clip - when triggered in the RT eval function the clips are passed to a queue and played. What I need is the ability to add a notify that the clip has finished playing so I can then pop it from the queue and stop the processing.

Is this possible? Note, this is all happening independent of the timeline - there is no playback.
Video is toggled with the free running attribute and audio from the FBAudioClip->Play() call.