---
title: sizes
framework: coremedia
role: symbol
role_heading: Instance Property
path: coremedia/cmsamplebuffer/samplepropertiescollection/sizes
---

# sizes

Access sample sizes.

## Declaration

```swift
var sizes: CMSampleBuffer.SizePerSample? { get set }
```

## Discussion

Discussion When setting distinct sizes, the number of entries must match count.