pub unsafe static AVVideoPixelAspectRatioKey: Option<&'static NSString>Available on crate feature
AVVideoSettings only.Expand description
The aspect ratio of the pixels in the video frame
The value for this key is an NSDictionary containing AVVideoPixelAspectRatio*Key keys. If no value is specified for this key, the default value for the codec is used. Usually this is 1:1, meaning square pixels.
Note that prior to macOS 10.9 and iOS 7.0, this key could only be specified as part of the dictionary given for AVVideoCompressionPropertiesKey. As of macOS 10.9 and iOS 7.0, the top level of an AVVideoSettings dictionary is the preferred place to specify this key.
See also Apple’s documentation