DCPTime min (DCPTime a, DCPTime b);
DCPTime max (DCPTime a, DCPTime b);
ContentTime min (ContentTime a, ContentTime b);
ContentTime max (ContentTime a, ContentTime b);
std::ostream& operator<< (std::ostream& s, ContentTime t);
std::ostream& operator<< (std::ostream& s, DCPTime t);
DCPTime min (DCPTime a, DCPTime b);
DCPTime max (DCPTime a, DCPTime b);
ContentTime min (ContentTime a, ContentTime b);
ContentTime max (ContentTime a, ContentTime b);
std::ostream& operator<< (std::ostream& s, ContentTime t);
std::ostream& operator<< (std::ostream& s, DCPTime t);