| Port | Description |
| source primary | Input SMIL Must be a version 3.0 SMIL document |
| ncx sequence | NCX file If the input SMIL is from a DAISY 3, an NCX file may optionally be passed. The
|
| Port | Description |
| result primary | Output SMIL |
| Local Name | Namespace URI | Default | Description |
| version | '1.0' | Version of the output SMIL Only supported value is 1.0 |