void video_view_sized ();
void calculate_sizes ();
void player_change (ChangeType type, int, bool);
void idle_handler ();
void request_idle_display_next_frame ();
void film_change (ChangeType, Film::Property);
void video_view_sized ();
void calculate_sizes ();
void player_change (ChangeType type, int, bool);
void idle_handler ();
void request_idle_display_next_frame ();
void film_change (ChangeType, Film::Property);