--- /dev/null
+/*
+ Copyright (C) 2020 Carl Hetherington <cth@carlh.net>
+
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ DCP-o-matic is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#include "subtitle_analysis.h"
+#include "exceptions.h"
+#include <libcxml/cxml.h>
+#include <dcp/raw_convert.h>
+#include <libxml++/libxml++.h>
+
+using std::string;
+using dcp::raw_convert;
+using boost::shared_ptr;
+
+int const SubtitleAnalysis::_current_state_version = 1;
+
+
+SubtitleAnalysis::SubtitleAnalysis (boost::filesystem::path path)
+{
+ cxml::Document f ("SubtitleAnalysis");
+
+ f.read_file (path);
+
+ if (f.optional_number_child<int>("Version").get_value_or(1) < _current_state_version) {
+ /* Too old. Throw an exception so that this analysis is re-run. */
+ throw OldFormatError ("Audio analysis file is too old");
+ }
+
+ cxml::NodePtr bounding_box = f.optional_node_child("BoundingBox");
+ if (bounding_box) {
+ _bounding_box = dcpomatic::Rect<double> ();
+ _bounding_box->x = bounding_box->number_child<double>("X");
+ _bounding_box->y = bounding_box->number_child<double>("Y");
+ _bounding_box->width = bounding_box->number_child<double>("Width");
+ _bounding_box->height = bounding_box->number_child<double>("Height");
+ }
+}
+
+
+void
+SubtitleAnalysis::write (boost::filesystem::path path) const
+{
+ shared_ptr<xmlpp::Document> doc (new xmlpp::Document);
+ xmlpp::Element* root = doc->create_root_node ("SubtitleAnalysis");
+
+ root->add_child("Version")->add_child_text (raw_convert<string>(_current_state_version));
+
+ if (_bounding_box) {
+ xmlpp::Element* bounding_box = root->add_child("BoundingBox");
+ bounding_box->add_child("X")->add_child_text(raw_convert<string>(_bounding_box->x));
+ bounding_box->add_child("Y")->add_child_text(raw_convert<string>(_bounding_box->y));
+ bounding_box->add_child("Width")->add_child_text(raw_convert<string>(_bounding_box->width));
+ bounding_box->add_child("Height")->add_child_text(raw_convert<string>(_bounding_box->height));
+ }
+
+ doc->write_to_file_formatted (path.string());
+}
+
+