-/** Construct a ReelAsset.
- * @param id ID of this ReelAsset (which is that of the MXF, if there is one)
- * @param edit_rate Edit rate for the asset.
- * @param intrinsic_duration Intrinsic duration of this asset.
- * @param entry_point Entry point to use in that asset.
- */
-ReelAsset::ReelAsset (string id, Fraction edit_rate, int64_t intrinsic_duration, int64_t entry_point)
+
+ReelAsset::ReelAsset (string id, Fraction edit_rate, int64_t intrinsic_duration, optional<int64_t> entry_point)