A function that will be called when the nleobject of a corresponding track element needs to be filled.
The implementer of this function shall add the proper #GstElement to nleobj using gst_bin_add().
nleobj
The #GESClip controlling the track elements
The #GESTrackElement
The nleobject that needs to be filled
A function that will be called when the nleobject of a corresponding track element needs to be filled.
The implementer of this function shall add the proper #GstElement to
nleobjusing gst_bin_add().