---
title: kVTDecompressionPropertyKey_ReducedResolutionDecode
framework: videotoolbox
role: symbol
role_heading: Global Variable
path: videotoolbox/kvtdecompressionpropertykey_reducedresolutiondecode
---

# kVTDecompressionPropertyKey_ReducedResolutionDecode

Request decoding at smaller resolutions than full-size (optional).

## Declaration

```swift
let kVTDecompressionPropertyKey_ReducedResolutionDecode: CFString
```

## Discussion

Discussion This is an optional property for video decoders to implement. Decoders that only support a fixed set of resolutions should pick the smallest resolution greater than or equal to the requested width and height.

## Topics

### Resolutions

- [kVTDecompressionResolutionKey_Width](videotoolbox/kvtdecompressionresolutionkey_width.md)
- [kVTDecompressionResolutionKey_Height](videotoolbox/kvtdecompressionresolutionkey_height.md)

## See Also

### Decoder Behavior

- [kVTDecompressionProperty_TemporalLevelLimit](videotoolbox/kvtdecompressionproperty_temporallevellimit.md)
- [kVTDecompressionPropertyKey_AllowBitstreamToChangeFrameDimensions](videotoolbox/kvtdecompressionpropertykey_allowbitstreamtochangeframedimensions.md)
- [kVTDecompressionPropertyKey_DeinterlaceMode](videotoolbox/kvtdecompressionpropertykey_deinterlacemode.md)
- [kVTDecompressionPropertyKey_FieldMode](videotoolbox/kvtdecompressionpropertykey_fieldmode.md)
- [kVTDecompressionPropertyKey_MaximizePowerEfficiency](videotoolbox/kvtdecompressionpropertykey_maximizepowerefficiency.md)
- [kVTDecompressionPropertyKey_OnlyTheseFrames](videotoolbox/kvtdecompressionpropertykey_onlytheseframes.md)
- [kVTDecompressionPropertyKey_PixelFormatsWithReducedResolutionSupport](videotoolbox/kvtdecompressionpropertykey_pixelformatswithreducedresolutionsupport.md)
- [kVTDecompressionPropertyKey_RealTime](videotoolbox/kvtdecompressionpropertykey_realtime.md)
- [kVTDecompressionPropertyKey_ReducedCoefficientDecode](videotoolbox/kvtdecompressionpropertykey_reducedcoefficientdecode.md)
- [kVTDecompressionPropertyKey_ReducedFrameDelivery](videotoolbox/kvtdecompressionpropertykey_reducedframedelivery.md)
- [kVTDecompressionPropertyKey_SuggestedQualityOfServiceTiers](videotoolbox/kvtdecompressionpropertykey_suggestedqualityofservicetiers.md)
- [kVTDecompressionPropertyKey_SupportedPixelFormatsOrderedByPerformance](videotoolbox/kvtdecompressionpropertykey_supportedpixelformatsorderedbyperformance.md)
- [kVTDecompressionPropertyKey_SupportedPixelFormatsOrderedByQuality](videotoolbox/kvtdecompressionpropertykey_supportedpixelformatsorderedbyquality.md)
- [kVTDecompressionPropertyKey_ThreadCount](videotoolbox/kvtdecompressionpropertykey_threadcount.md)