Global Variable


Indicates the URL where the sample data is (type CFURL).


let kCMSampleBufferAttachmentKey_SampleReferenceURL: CFString


This key is only used for sample buffers representing sample references.

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.

Learn more about using Apple's beta software