, _annotation_text (node->optional_string_child ("AnnotationText").get_value_or (""))
, _edit_rate (Fraction (node->string_child ("EditRate")))
, _intrinsic_duration (node->number_child<int64_t> ("IntrinsicDuration"))
, _annotation_text (node->optional_string_child ("AnnotationText").get_value_or (""))
, _edit_rate (Fraction (node->string_child ("EditRate")))
, _intrinsic_duration (node->number_child<int64_t> ("IntrinsicDuration"))