Hand-apply d849d411cff28ef5453085791d0b4d7cd73bd070 from master; replace all assert...
[dcpomatic.git] / src / lib / content.h
index 0b72ada9c52a55d7b822829dce94ceeac134f24c..e383f9ff0a599e52e5ba6a97a4083f7cec773ea3 100644 (file)
 #ifndef DCPOMATIC_CONTENT_H
 #define DCPOMATIC_CONTENT_H
 
-#include <set>
+#include "types.h"
+#include "dcpomatic_time.h"
+#include <libxml++/libxml++.h>
+#include <libcxml/cxml.h>
 #include <boost/filesystem.hpp>
 #include <boost/signals2.hpp>
 #include <boost/thread/mutex.hpp>
 #include <boost/enable_shared_from_this.hpp>
-#include <libxml++/libxml++.h>
-#include <libcxml/cxml.h>
-#include "types.h"
-#include "dcpomatic_time.h"
 
 namespace cxml {
        class Node;
@@ -110,7 +109,7 @@ public:
        bool paths_valid () const;
 
        /** @return MD5 digest of the content's file(s) */
-       std::string digest () const {
+       boost::optional<std::string> digest () const {
                boost::mutex::scoped_lock lm (_mutex);
                return _digest;
        }
@@ -169,7 +168,7 @@ protected:
        std::vector<boost::filesystem::path> _paths;
        
 private:
-       std::string _digest;
+       boost::optional<std::string> _digest;
        DCPTime _position;
        DCPTime _trim_start;
        DCPTime _trim_end;