---
title: "CMSampleBufferGetNumSamples(_:)"
framework: coremedia
role: symbol
role_heading: Function
path: "coremedia/cmsamplebuffergetnumsamples(_:)"
---

# CMSampleBufferGetNumSamples(_:)

Returns the number of media samples in a sample buffer.

## Declaration

```swift
func CMSampleBufferGetNumSamples(_ sbuf: CMSampleBuffer) -> CMItemCount
```

## Parameters

- `sbuf`: The CMSampleBuffer being interrogated.

## Return Value

Return Value The number of media samples in the CMSampleBuffer. 0 is returned if there is an error.

## See Also

### Inspecting Size Information

- [CMSampleBufferGetTotalSampleSize(_:)](coremedia/cmsamplebuffergettotalsamplesize(_:).md)
- [CMSampleBufferGetSampleSize(_:at:)](coremedia/cmsamplebuffergetsamplesize(_:at:).md)
- [CMSampleBufferGetSampleSizeArray(_:entryCount:arrayToFill:entriesNeededOut:)](coremedia/cmsamplebuffergetsamplesizearray(_:entrycount:arraytofill:entriesneededout:).md)