shared_ptr<DCPTextContent> content (new DCPTextContent (film, "test/data/dcp_sub.xml"));
content->subtitle->set_use (true);
film->examine_and_add_content (content);
shared_ptr<DCPTextContent> content (new DCPTextContent (film, "test/data/dcp_sub.xml"));
content->subtitle->set_use (true);
film->examine_and_add_content (content);