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# CMTimebaseCreateWithSourceTimebase(allocator:sourceTimebase:timebaseOut:)

Creates a timebase by using a source timebase.

```
func CMTimebaseCreateWithSourceTimebase(allocator: CFAllocator?, sourceTimebase: CMTimebase, timebaseOut: UnsafeMutablePointer<CMTimebase?>) -> OSStatus
```

## Parameters

`allocator`

The allocator to use for creating the timebase.

`sourceTimebase`

The source timebase.

`timebaseOut`

Receives the timebase the function creates.

## Discussion

---

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