Image Buffer Clean Aperture Keys

Overview

Define these key-value pairs in a CFDictionary instance and use the kCVImageBufferCleanApertureKey or kCVImageBufferPreferredCleanApertureKey key to attach it to the image buffer. An image’s clean aperture is a region of video that’s free from transition artifacts caused by the encoding of the signal. This is the region of video to display.

Topics

Constants

• kCVImageBufferCleanApertureWidthKey
• kCVImageBufferCleanApertureHeightKey
• kCVImageBufferCleanApertureHorizontalOffsetKey
• kCVImageBufferCleanApertureVerticalOffsetKey

See Also

Constants

• Image Buffer Attachment Keys
• Image Buffer Pixel Aspect Ratio Keys
• Image Buffer Display Dimensions Keys
• Image Buffer Field Detail Constants
• Image Buffer YCbCr Matrix Constants
• Image Buffer Color Primaries Constants
• Image Buffer Transfer Function Constants
• Image Buffer Chroma Location Constants
• Image Buffer Chroma Subsampling Constants
• Image Buffer Display Mask Rectangle Keys