---
title: fillExtendedPixels
framework: corevideo
role: symbol
role_heading: Instance Property
path: corevideo/cvpixelformatdescription/pixellayout/fillextendedpixels
---

# fillExtendedPixels

Callback which can replicate edge pixels to the extended pixels.

## Declaration

```swift
var fillExtendedPixels: (@Sendable (inout CVMutablePixelBuffer) -> Void)?
```