These configurations, when a child frame video is synthesized for {TAIL ~ its display} on the parent frame video in picture in {HEAD ~ picture}, enable the child frame video to be displayed for playback by displaying it in the suitable displayed position 
These configurations , when a child frame video is synthesized for { TAIL ~ its display } on the parent frame video in picture in { HEAD ~ picture } , enable the child frame video to be displayed for playback by displaying it in the suitable displayed position
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH