---
title: previousFrameCount
framework: videotoolbox
role: symbol
role_heading: Instance Property
path: videotoolbox/vtframeprocessorconfiguration/previousframecount-1crhc
---

# previousFrameCount

The number of previous frames that the processor requires for processing.

## Declaration

```swift
var previousFrameCount: Int? { get }
```

## See Also

### Inspecting frame requirements

- [nextFrameCount](videotoolbox/vtframeprocessorconfiguration/nextframecount-18e47.md)