Macro jwplayer: add a default image to the inactive viewer

Hi,
On the jwplayer macro, is it possible to have an image (instead of a black rectangle) when the viewer is inactive ?
For exemple, it could take the form of an optionnal agument (default_image_time) representing a time in seconds for an image of the video.
Exemples:

  • -1 (default value): negative time interpreted as black rectangle (as now),
  • 0: first frame,
  • 10.5: frame at 10.5 s of the video…

Thanks!