pub unsafe static kVTCompressionPropertyKey_CleanAperture: &'static CFStringAvailable on crate feature
VTCompressionProperties only.Expand description
Describes the clean aperture for encoded frames.
Some video encoders may enforce specific clean apertures; in those cases this property will be read-only (SetProperty will return kVTPropertyReadOnlyErr). The clean aperture will be set on the format description for output samples, and may affect source frame scaling. NULL is a valid value for this property, meaning that the clean aperture is the full width and height.
See also Apple’s documentation