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Image events are never pushed.

ImageStatusCallback never pushes events because of how the last event time is stored: it is always updated even when no events is sent, and the comparison is wrong anyway (current time < next time instead of current time >= next time). Also, the way it's done, you can miss the last frame, so I suggest sending it when:

  • last_acquired == -1
  • status changed (this way there's an even when the last frame of an acquisition is available, because the status is back to "AcqReady" when the callback is called)
  • current time > last event time + delay

@claustre @debionne

Edited by Damien Naudet