ContentVersion is required by SMPTE, I think.

diff --git a/src/cpl.cc b/src/cpl.cc
index 11e7e1c74707aa669301ab77b01afd238a6b25f3..b65ffd92f85a6dcf0085efef1d7feb4324b72122 100644 (file)
--- a/src/cpl.cc
+++ b/src/cpl.cc
@@ -104,6 +104,9 @@ CPL::CPL (boost::filesystem::path file)
                _content_version_id = content_version->optional_string_child ("Id").get_value_or ("");
                _content_version_label_text = content_version->string_child ("LabelText");
                content_version->done ();
+       } else if (_standard == SMPTE) {
+               /* ContentVersion is required in SMPTE */
+               throw XMLError ("Missing ContentVersion tag in CPL");
        }
        cxml::ConstNodePtr rating_list = f.node_child ("RatingList");
        if (rating_list) {