---
title: kVTCompressionPropertyKey_BaseLayerFrameRateFraction
framework: videotoolbox
role: symbol
role_heading: Global Variable
path: videotoolbox/kvtcompressionpropertykey_baselayerframeratefraction
---

# kVTCompressionPropertyKey_BaseLayerFrameRateFraction

## Declaration

```swift
let kVTCompressionPropertyKey_BaseLayerFrameRateFraction: CFString
```

## See Also

### Temporal Scalability

- [kVTCompressionPropertyKey_BaseLayerBitRateFraction](videotoolbox/kvtcompressionpropertykey_baselayerbitratefraction.md)
- [kVTCompressionPropertyKey_BaseLayerFrameRate](videotoolbox/kvtcompressionpropertykey_baselayerframerate.md)