vector<string> b;
boost::algorithm::split (b, a[2], boost::is_any_of (","));
r += ContentTime::from_seconds (lexical_cast<int> (b[0]));
vector<string> b;
boost::algorithm::split (b, a[2], boost::is_any_of (","));
r += ContentTime::from_seconds (lexical_cast<int> (b[0]));