---
title: "CMTimebaseRemoveTimerDispatchSource(_:timerSource:)"
framework: coremedia
role: symbol
role_heading: Function
path: "coremedia/cmtimebaseremovetimerdispatchsource(_:timersource:)"
---

# CMTimebaseRemoveTimerDispatchSource(_:timerSource:)

Removes the timer dispatch source from the list of timers the timebase manages.

## Declaration

```swift
func CMTimebaseRemoveTimerDispatchSource(_ timebase: CMTimebase, timerSource: dispatch_source_t) -> OSStatus
```

## Discussion

Discussion The timebase no longer maintains the timer source’s start time. If the system cancels the timer source, the timebase eventually removes it from its list and releases it even if you don’t call this function.

## See Also

### Interacting with Timers

- [CMTimebaseAddTimer(_:timer:runloop:)](coremedia/cmtimebaseaddtimer(_:timer:runloop:).md)
- [CMTimebaseAddTimerDispatchSource(_:timerSource:)](coremedia/cmtimebaseaddtimerdispatchsource(_:timersource:).md)
- [CMTimebaseRemoveTimer(_:timer:)](coremedia/cmtimebaseremovetimer(_:timer:).md)
- [CMTimebaseSetTimerNextFireTime(_:timer:fireTime:flags:)](coremedia/cmtimebasesettimernextfiretime(_:timer:firetime:flags:).md)
- [CMTimebaseSetTimerToFireImmediately(_:timer:)](coremedia/cmtimebasesettimertofireimmediately(_:timer:).md)
- [CMTimebaseSetTimerDispatchSourceNextFireTime(_:timerSource:fireTime:flags:)](coremedia/cmtimebasesettimerdispatchsourcenextfiretime(_:timersource:firetime:flags:).md)
- [CMTimebaseSetTimerDispatchSourceToFireImmediately(_:timerSource:)](coremedia/cmtimebasesettimerdispatchsourcetofireimmediately(_:timersource:).md)