kVTPixelTransferPropertyKey_ScalingMode

Declaration

let kVTPixelTransferPropertyKey_ScalingMode: CFString

Discussion

Depending on the scaling mode, scaling may take into account:

• The full image buffer width and height of the source and destination

• The clean aperture attachment (kCVImageBufferCleanApertureKey) on the source image buffer

• The pixel aspect ratio attachment (kCVImageBufferPixelAspectRatioKey) on the source image buffer

• The destination clean aperture (kVTPixelTransferPropertyKey_DestinationCleanAperture)

• The destination pixel aspect ratio (kVTPixelTransferPropertyKey_DestinationPixelAspectRatio)

The destination image buffer’s clean aperture and pixel aspect ratio attachments are not taken into account, and are overwritten.

See Also

Configuration

• Scaling Mode Constants
• kVTPixelTransferPropertyKey_DestinationCleanAperture
• kVTPixelTransferPropertyKey_DestinationPixelAspectRatio
• kVTPixelTransferPropertyKey_DownsamplingMode
• Downsampling Mode Constants
• kVTPixelTransferPropertyKey_DestinationColorPrimaries
• kVTPixelTransferPropertyKey_DestinationTransferFunction
• kVTPixelTransferPropertyKey_DestinationICCProfile
• kVTPixelTransferPropertyKey_DestinationYCbCrMatrix
• kVTPixelTransferPropertyKey_RealTime