+ void add_stream (AudioStreamPtr stream);
+ void set_stream (AudioStreamPtr stream);
+ void set_streams (std::vector<AudioStreamPtr> streams);
+ AudioStreamPtr stream () const;
+
+ void add_properties (std::list<UserProperty> &) const;
+
+ static boost::shared_ptr<AudioContent> from_xml (Content* parent, boost::shared_ptr<const Film>, cxml::ConstNodePtr);
+