---
title: forceSDR
framework: avfoundation
role: symbol
role_heading: Type Property
path: avfoundation/avassetimagegenerator/dynamicrangepolicy-swift.struct/forcesdr
---

# forceSDR

A policy that forces conversion to standard dynamic range.

## Declaration

```swift
static let forceSDR: AVAssetImageGenerator.DynamicRangePolicy
```

## Discussion

Discussion This policy converts PQ or HLG transfer functions to 709, while maintaining color primaries and matrix.

## See Also

### Policies

- [matchSource](avfoundation/avassetimagegenerator/dynamicrangepolicy-swift.struct/matchsource.md)