+string
+resolution_to_string (Resolution r)
+{
+ switch (r) {
+ case RESOLUTION_2K:
+ return "2K";
+ case RESOLUTION_4K:
+ return "4K";
+ }
+
+ DCPOMATIC_ASSERT (false);
+ return "";
+}
+
+
+Resolution
+string_to_resolution (string s)
+{
+ if (s == "2K") {
+ return RESOLUTION_2K;
+ }
+
+ if (s == "4K") {
+ return RESOLUTION_4K;
+ }
+
+ DCPOMATIC_ASSERT (false);
+ return RESOLUTION_2K;
+}
+
+Crop::Crop (shared_ptr<cxml::Node> node)
+{
+ left = node->number_child<int> ("LeftCrop");
+ right = node->number_child<int> ("RightCrop");
+ top = node->number_child<int> ("TopCrop");
+ bottom = node->number_child<int> ("BottomCrop");
+}
+
+void
+Crop::as_xml (xmlpp::Node* node) const
+{
+ node->add_child("LeftCrop")->add_child_text (raw_convert<string> (left));
+ node->add_child("RightCrop")->add_child_text (raw_convert<string> (right));
+ node->add_child("TopCrop")->add_child_text (raw_convert<string> (top));
+ node->add_child("BottomCrop")->add_child_text (raw_convert<string> (bottom));
+}
+
+TextType
+string_to_text_type (string s)
+{
+ if (s == "unknown") {
+ return TEXT_UNKNOWN;
+ } else if (s == "open-subtitle") {
+ return TEXT_OPEN_SUBTITLE;
+ } else if (s == "closed-caption") {
+ return TEXT_CLOSED_CAPTION;
+ } else {
+ throw MetadataError (String::compose ("Unknown text type %1", s));
+ }
+}
+
+string
+text_type_to_string (TextType t)
+{
+ switch (t) {
+ case TEXT_UNKNOWN:
+ return "unknown";
+ case TEXT_OPEN_SUBTITLE:
+ return "open-subtitle";
+ case TEXT_CLOSED_CAPTION:
+ return "closed-caption";
+ default:
+ DCPOMATIC_ASSERT (false);
+ }
+}
+
+string
+text_type_to_name (TextType t)
+{
+ switch (t) {
+ case TEXT_UNKNOWN:
+ return _("Timed text");
+ case TEXT_OPEN_SUBTITLE:
+ return _("Open subtitles");
+ case TEXT_CLOSED_CAPTION:
+ return _("Closed captions");
+ default:
+ DCPOMATIC_ASSERT (false);
+ }
+}
+
+string
+video_frame_type_to_string (VideoFrameType t)