bool have_sequenced_image_at_queue_head ();
void write_frame_info (int frame, Eyes eyes, dcp::FrameInfo info) const;
long frame_info_position (int frame, Eyes eyes) const;
bool have_sequenced_image_at_queue_head ();
void write_frame_info (int frame, Eyes eyes, dcp::FrameInfo info) const;
long frame_info_position (int frame, Eyes eyes) const;