---
title: CMSampleBufferGetTypeID()
framework: coremedia
role: symbol
role_heading: Function
path: coremedia/cmsamplebuffergettypeid()
---

# CMSampleBufferGetTypeID()

Returns the type identifier of sample buffer objects.

## Declaration

```swift
func CMSampleBufferGetTypeID() -> CFTypeID
```

## Return Value

Return Value CFTypeID of CMSampleBuffer objects.

## Discussion

Discussion You can check if a CFTypeRef object is actually a CMSampleBuffer by comparing CFGetTypeID(object) with CMSampleBufferGetTypeID().