+extern void make_and_verify_dcp (std::shared_ptr<Film> film, std::vector<dcp::VerificationNote::Code> ignore = {});
+extern void check_int_close (int a, int b, int d);
+extern void check_int_close (std::pair<int, int>, std::pair<int, int>, int d);
+
+
+class LogSwitcher
+{
+public:
+ LogSwitcher (std::shared_ptr<Log> log);
+ ~LogSwitcher ();
+
+private:
+ std::shared_ptr<Log> _old;
+};
+
+
+namespace dcp {
+
+std::ostream& operator<< (std::ostream& s, dcp::Size i);
+std::ostream& operator<< (std::ostream& s, dcp::Standard t);
+
+}
+
+std::ostream& operator<< (std::ostream& s, VideoFrameType f);