bool confirm_video_outfn (Gtk::Window& parent, std::string, std::string docroot="");
std::string video_dest_dir (const std::string, const std::string);
std::string video_dest_file (const std::string, const std::string);
bool confirm_video_outfn (Gtk::Window& parent, std::string, std::string docroot="");
std::string video_dest_dir (const std::string, const std::string);
std::string video_dest_file (const std::string, const std::string);