---
title: "CMBufferQueueGetMaxPresentationTimeStamp(_:)"
framework: coremedia
role: symbol
role_heading: Function
path: "coremedia/cmbufferqueuegetmaxpresentationtimestamp(_:)"
---

# CMBufferQueueGetMaxPresentationTimeStamp(_:)

Gets the greatest presentation timestamp of a buffer queue.

## Declaration

```swift
func CMBufferQueueGetMaxPresentationTimeStamp(_ queue: CMBufferQueue) -> CMTime
```

## Parameters

- `queue`: CMBufferQueue being interrogated.

## Return Value

Return Value The greatest presentation timestamp of the interrogated CMBufferQueue.

## Discussion

Discussion If the getPresentationTimeStamp callback is NULL, kCMTimeInvalid will be returned.

## See Also

### Inspecting Duration and Timing

- [CMBufferQueueGetDuration(_:)](coremedia/cmbufferqueuegetduration(_:).md)
- [CMBufferQueueGetMinDecodeTimeStamp(_:)](coremedia/cmbufferqueuegetmindecodetimestamp(_:).md)
- [CMBufferQueueGetFirstDecodeTimeStamp(_:)](coremedia/cmbufferqueuegetfirstdecodetimestamp(_:).md)
- [CMBufferQueueGetMinPresentationTimeStamp(_:)](coremedia/cmbufferqueuegetminpresentationtimestamp(_:).md)
- [CMBufferQueueGetFirstPresentationTimeStamp(_:)](coremedia/cmbufferqueuegetfirstpresentationtimestamp(_:).md)
- [CMBufferQueueGetEndPresentationTimeStamp(_:)](coremedia/cmbufferqueuegetendpresentationtimestamp(_:).md)
- [CMBufferQueueGetCallbacksForSampleBuffersSortedByOutputPTS()](coremedia/cmbufferqueuegetcallbacksforsamplebufferssortedbyoutputpts().md)
- [CMBufferQueueGetCallbacksForUnsortedSampleBuffers()](coremedia/cmbufferqueuegetcallbacksforunsortedsamplebuffers().md)