# Live source & File source management

> **Info:** Only available with **MediaComposer** input type.

## Live source management

| Parameter          | Description                                                                                                                                                                                                                                                                                                                                                                                                    |
| :----------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Default service ID | ID of the live content that will be used at the start of the service. The ID can be: an existing ID: the live content can be selected from the list of existing IDs. If required, it can be directly modified via the 'Edit' button. a new ID: in this case, the live content can be created and configured either immediately via the 'Create' button, or later from the 'Settings>Live service lineup' menu. |
| Default frame rate | Default frame rate used when live input is not yet detected. Possible values: from 23.98p to 60p                                                                                                                                                                                                                                                                                                               |

## File source management

| Parameter               | Description                                                                                           |
| :---------------------- | :---------------------------------------------------------------------------------------------------- |
| Auto return to live     | Returns to live at end of the offline source playlist. Note: Unused in Switch to Live use case.       |
| Return to live on error | Returns to live if offline source playlist cannot be loaded. Note: Unused in Switch to Live use case. |