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# timecodeGenerator(_:didUpdateAvailableSources:)

Notifies the delegate when the list of available timecode synchronization sources is updated.

```
func timecodeGenerator(_ generator: AVCaptureTimecodeGenerator, didUpdateAvailableSources availableSources: [AVCaptureTimecode.Source])
```

## Parameters

`generator`

The [`AVCaptureTimecodeGenerator`](/documentation/AVFoundation/AVCaptureTimecodeGenerator) instance providing the source list update.

`availableSources`

An array of [`AVCaptureTimecode.Source`](/documentation/AVFoundation/AVCaptureTimecode/Source) objects representing the available timecode synchronization sources.

---

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