1 files changed, 131 insertions, 0 deletions
diff --git a/src/lib/audio_mapping.cc b/src/lib/audio_mapping.cc
new file mode 100644
index 000000000..b85ea7314
--- /dev/null
+++ b/src/lib/audio_mapping.cc
@@ -0,0 +1,131 @@
+/*
+    Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+
+    This program 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.
+
+    This program 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 this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include <boost/lexical_cast.hpp>
+#include <libcxml/cxml.h>
+#include "audio_mapping.h"
+
+using std::list;
+using std::cout;
+using std::make_pair;
+using std::pair;
+using std::string;
+using boost::shared_ptr;
+using boost::lexical_cast;
+using boost::dynamic_pointer_cast;
+
+void
+AudioMapping::add (Channel c, libdcp::Channel d)
+{
+	_content_to_dcp.push_back (make_pair (c, d));
+}
+
+/* XXX: this is grotty */
+int
+AudioMapping::dcp_channels () const
+{
+	for (list<pair<Channel, libdcp::Channel> >::const_iterator i = _content_to_dcp.begin(); i != _content_to_dcp.end(); ++i) {
+		if (((int) i->second) > 2) {
+			return 6;
+		}
+	}
+
+	return 2;
+}
+
+list<AudioMapping::Channel>
+AudioMapping::dcp_to_content (libdcp::Channel d) const
+{
+	list<AudioMapping::Channel> c;
+	for (list<pair<Channel, libdcp::Channel> >::const_iterator i = _content_to_dcp.begin(); i != _content_to_dcp.end(); ++i) {
+		if (i->second == d) {
+			c.push_back (i->first);
+		}
+	}
+
+	return c;
+}
+
+list<AudioMapping::Channel>
+AudioMapping::content_channels () const
+{
+	list<AudioMapping::Channel> c;
+	for (list<pair<Channel, libdcp::Channel> >::const_iterator i = _content_to_dcp.begin(); i != _content_to_dcp.end(); ++i) {
+		if (find (c.begin(), c.end(), i->first) == c.end ()) {
+			c.push_back (i->first);
+		}
+	}
+
+	return c;
+}
+
+list<libdcp::Channel>
+AudioMapping::content_to_dcp (Channel c) const
+{
+	list<libdcp::Channel> d;
+	for (list<pair<Channel, libdcp::Channel> >::const_iterator i = _content_to_dcp.begin(); i != _content_to_dcp.end(); ++i) {
+		if (i->first == c) {
+			d.push_back (i->second);
+		}
+	}
+
+	return d;
+}
+
+void
+AudioMapping::as_xml (xmlpp::Node* node) const
+{
+	for (list<pair<Channel, libdcp::Channel> >::const_iterator i = _content_to_dcp.begin(); i != _content_to_dcp.end(); ++i) {
+		xmlpp::Node* t = node->add_child ("Map");
+		shared_ptr<const AudioContent> c = i->first.content.lock ();
+		t->add_child ("Content")->add_child_text (c->file().string ());
+		t->add_child ("ContentIndex")->add_child_text (lexical_cast<string> (i->first.index));
+		t->add_child ("DCP")->add_child_text (lexical_cast<string> (i->second));
+	}
+}
+
+void
+AudioMapping::set_from_xml (ContentList const & content, shared_ptr<const cxml::Node> node)
+{
+	list<shared_ptr<cxml::Node> > const c = node->node_children ("Map");
+	for (list<shared_ptr<cxml::Node> >::const_iterator i = c.begin(); i != c.end(); ++i) {
+		string const c = (*i)->string_child ("Content");
+		ContentList::const_iterator j = content.begin ();
+		while (j != content.end() && (*j)->file().string() != c) {
+			++j;
+		}
+
+		if (j == content.end ()) {
+			continue;
+		}
+
+		shared_ptr<const AudioContent> ac = dynamic_pointer_cast<AudioContent> (*j);
+		assert (ac);
+
+		add (AudioMapping::Channel (ac, (*i)->number_child<int> ("ContentIndex")), static_cast<libdcp::Channel> ((*i)->number_child<int> ("DCP")));
+	}
+}
+
+bool
+operator== (AudioMapping::Channel const & a, AudioMapping::Channel const & b)
+{
+	shared_ptr<const AudioContent> sa = a.content.lock ();
+	shared_ptr<const AudioContent> sb = b.content.lock ();
+	return sa == sb && a.index == b.index;
+}