Catch attempts to make a DCP when all content has been trimmed to zero length.

diff --git a/src/lib/film.cc b/src/lib/film.cc
index 82a00f4641d353ef9bae194cf70da595999795ab..f7fd96a01a35e4f405bb0f575ec9cb161092de03 100644 (file)
--- a/src/lib/film.cc
+++ b/src/lib/film.cc
@@ -320,6 +320,10 @@ Film::make_dcp (bool gui, bool check)
                throw runtime_error (_("You must add some content to the DCP before creating it"));
        }
 
+       if (length() == DCPTime()) {
+               throw runtime_error (_("The DCP is empty, perhaps because all the content has zero length."));
+       }
+
        if (dcp_content_type() == 0) {
                throw MissingSettingError (_("content type"));
        }