Global Variable

AVErrorMediaSubTypeKey

The corresponding value is an array of NSNumber objects that specify media subtypes. The types are represented by four character codes (4ccs), as defined in CoreAudioTypes.h for audio media and in CMFormatDescription.h for video media.

Declaration

NSString *const AVErrorMediaSubTypeKey;

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