Hand-apply bbfb370d7de28ec1e8f307865cc6253bb5d4366e from master; quicker digest calcu...

[dcpomatic.git] / src / lib / image_content.cc

diff --git a/src/lib/image_content.cc b/src/lib/image_content.cc
index d7b37a8353fa5f04b63c58006a2a6c8eade95a1f..1dbd7871b9f9a22d51f2a296094209499922bb87 100644 (file)
--- a/src/lib/image_content.cc
+++ b/src/lib/image_content.cc
@@ -20,16 +20,17 @@
 #include <libcxml/cxml.h>
 #include "image_content.h"
 #include "image_examiner.h"
-#include "config.h"
 #include "compose.hpp"
 #include "film.h"
 #include "job.h"
+#include "frame_rate_change.h"
+#include "exceptions.h"
+#include "safe_stringstream.h"
 
 #include "i18n.h"
 
 using std::string;
 using std::cout;
-using std::stringstream;
 using boost::shared_ptr;
 
 ImageContent::ImageContent (shared_ptr<const Film> f, boost::filesystem::path p)
@@ -44,13 +45,17 @@ ImageContent::ImageContent (shared_ptr<const Film> f, boost::filesystem::path p)
                                _paths.push_back (i->path ());
                        }
                }
-               
+
+               if (_paths.empty()) {
+                       throw FileError (_("No valid image files were found in the folder."), p);
+               }
+                               
                sort (_paths.begin(), _paths.end());
        }
 }
 
 
-ImageContent::ImageContent (shared_ptr<const Film> f, shared_ptr<const cxml::Node> node, int version)
+ImageContent::ImageContent (shared_ptr<const Film> f, cxml::ConstNodePtr node, int version)
        : Content (f, node)
        , VideoContent (f, node, version)
 {
@@ -97,16 +102,13 @@ ImageContent::as_xml (xmlpp::Node* node) const
 void
 ImageContent::examine (shared_ptr<Job> job)
 {
-       job->sub (_("Computing digest"));
        Content::examine (job);
 
        shared_ptr<const Film> film = _film.lock ();
-       assert (film);
+       DCPOMATIC_ASSERT (film);
        
        shared_ptr<ImageExaminer> examiner (new ImageExaminer (film, shared_from_this(), job));
-
        take_from_video_examiner (examiner);
-       set_video_length (examiner->video_length ());
 }
 
 void
@@ -124,14 +126,14 @@ DCPTime
 ImageContent::full_length () const
 {
        shared_ptr<const Film> film = _film.lock ();
-       assert (film);
+       DCPOMATIC_ASSERT (film);
        return DCPTime (video_length_after_3d_combine(), FrameRateChange (video_frame_rate(), film->video_frame_rate()));
 }
 
 string
 ImageContent::identifier () const
 {
-       stringstream s;
+       SafeStringStream s;
        s << VideoContent::identifier ();
        s << "_" << video_length().get();
        return s.str ();