public:\r
implementation() \r
: foreground_(frame_producer::empty())\r
, background_(frame_producer::empty())\r
, is_paused_(false)\r
, auto_play_delta_(-1)\r
public:\r
implementation() \r
: foreground_(frame_producer::empty())\r
, background_(frame_producer::empty())\r
, is_paused_(false)\r
, auto_play_delta_(-1)\r