---
title: frameHeight
framework: videotoolbox
role: symbol
role_heading: Instance Property
path: videotoolbox/vtopticalflowconfiguration/frameheight
---

# frameHeight

The height of source frame in pixels.

## Declaration

```swift
var frameHeight: Int { get }
```

## Discussion

Discussion The maximum value is 8192 pixels for macOS, and 4096 pixels for iOS.

## See Also

### Inspecting the configuration

- [frameWidth](videotoolbox/vtopticalflowconfiguration/framewidth.md)
- [sourcePixelBufferAttributes](videotoolbox/vtopticalflowconfiguration/sourcepixelbufferattributes.md)
- [destinationPixelBufferAttributes](videotoolbox/vtopticalflowconfiguration/destinationpixelbufferattributes.md)
- [supportedPixelFormats](videotoolbox/vtopticalflowconfiguration/supportedpixelformats.md)
- [qualityPrioritization](videotoolbox/vtopticalflowconfiguration/qualityprioritization-swift.property.md)
- [VTOpticalFlowConfiguration.QualityPrioritization](videotoolbox/vtopticalflowconfiguration/qualityprioritization-swift.enum.md)