rawFileType
The container file format for eventual output of the RAW image.
Declaration
var rawFileType: AVFileType? { get }Discussion
You specify a file format when creating capture settings with the init(rawPixelFormatType:rawFileType:processedFormat:processedFileType:) initializer. If you didn’t specify a file format, this value is nil, and the photo output automatically choosea a default file format appropriate to the rawPhotoPixelFormatType property.