---
title: Scaling Mode Constants
framework: videotoolbox
role: collectionGroup
role_heading: API Collection
path: videotoolbox/scaling-mode-constants
---

# Scaling Mode Constants

Supported constant values for the kVTPixelTransferPropertyKey_ScalingMode key.

## Topics

### Scaling Modes

- [kVTScalingMode_Normal](videotoolbox/kvtscalingmode_normal.md)
- [kVTScalingMode_CropSourceToCleanAperture](videotoolbox/kvtscalingmode_cropsourcetocleanaperture.md)
- [kVTScalingMode_Letterbox](videotoolbox/kvtscalingmode_letterbox.md)
- [kVTScalingMode_Trim](videotoolbox/kvtscalingmode_trim.md)

## See Also

### Configuration

- [kVTPixelTransferPropertyKey_ScalingMode](videotoolbox/kvtpixeltransferpropertykey_scalingmode.md)
- [kVTPixelTransferPropertyKey_DestinationCleanAperture](videotoolbox/kvtpixeltransferpropertykey_destinationcleanaperture.md)
- [kVTPixelTransferPropertyKey_DestinationPixelAspectRatio](videotoolbox/kvtpixeltransferpropertykey_destinationpixelaspectratio.md)
- [kVTPixelTransferPropertyKey_DownsamplingMode](videotoolbox/kvtpixeltransferpropertykey_downsamplingmode.md)
- [Downsampling Mode Constants](videotoolbox/downsampling-mode-constants.md)
- [kVTPixelTransferPropertyKey_DestinationColorPrimaries](videotoolbox/kvtpixeltransferpropertykey_destinationcolorprimaries.md)
- [kVTPixelTransferPropertyKey_DestinationTransferFunction](videotoolbox/kvtpixeltransferpropertykey_destinationtransferfunction.md)
- [kVTPixelTransferPropertyKey_DestinationICCProfile](videotoolbox/kvtpixeltransferpropertykey_destinationiccprofile.md)
- [kVTPixelTransferPropertyKey_DestinationYCbCrMatrix](videotoolbox/kvtpixeltransferpropertykey_destinationycbcrmatrix.md)
- [kVTPixelTransferPropertyKey_RealTime](videotoolbox/kvtpixeltransferpropertykey_realtime.md)