Some allowances for video/audio/subtitle possibly being null.

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

diff --git a/src/lib/dcp_content.cc b/src/lib/dcp_content.cc
index 2cd7e576f2f63d4f7fa27e1b85e45fd192bcae0b..dbd9bca8d4cd2fb9d3b87962ab12fcc9b039b772 100644 (file)
--- a/src/lib/dcp_content.cc
+++ b/src/lib/dcp_content.cc
@@ -166,10 +166,17 @@ DCPContent::as_xml (xmlpp::Node* node) const
        node->add_child("Type")->add_child_text ("DCP");
 
        Content::as_xml (node);
-       video->as_xml (node);
-       audio->as_xml (node);
-       node->add_child("AudioFrameRate")->add_child_text (raw_convert<string> (audio->stream()->frame_rate()));
-       audio->stream()->mapping().as_xml (node->add_child("AudioMapping"));
+
+       if (video) {
+               video->as_xml (node);
+       }
+
+       if (audio) {
+               audio->as_xml (node);
+               node->add_child("AudioFrameRate")->add_child_text (raw_convert<string> (audio->stream()->frame_rate()));
+               audio->stream()->mapping().as_xml (node->add_child("AudioMapping"));
+       }
+
        if (subtitle) {
                subtitle->as_xml (node);
        }