using std::pair;
using std::min;
using std::make_pair;
-using boost::shared_ptr;
+using std::shared_ptr;
using boost::optional;
-using boost::dynamic_pointer_cast;
+using std::dynamic_pointer_cast;
using dcp::raw_convert;
FFmpegImageProxy::FFmpegImageProxy (boost::filesystem::path path, VideoRange video_range)