<!--
{
  "availability" : [
    "macOS: 10.7.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "AVFoundation",
  "identifier" : "/documentation/AVFoundation/AVCaptureScreenInput/scaleFactor",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "AVFoundation"
    ],
    "preciseIdentifier" : "c:objc(cs)AVCaptureScreenInput(py)scaleFactor"
  },
  "title" : "scaleFactor"
}
-->

# scaleFactor

Indicates the factor by which video buffers captured from the screen are to be scaled.

```
var scaleFactor: CGFloat { get set }
```

## Discussion

By default, `AVCaptureScreenInput` captures the video buffers from the display at a scale factor of 1.0 (no scaling). Set this property to scale the buffers by a given factor; for example a 320x240 capture area with a scaleFactor of `2.0` produces video buffers at 640x480.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)