+ video = VideoContent::from_xml (this, node, version);
+ audio = AudioContent::from_xml (this, node, version);
+ subtitle = SubtitleContent::from_xml (this, node, version);
+
+ audio->set_stream (
+ AudioStreamPtr (
+ new AudioStream (
+ node->number_child<int> ("AudioFrameRate"),
+ node->number_child<Frame> ("AudioLength"),
+ AudioMapping (node->node_child ("AudioMapping"), version)
+ )
+ )
+ );
+