Function CMMetadataFormatDescriptionCreateWithKeys 

pub unsafe extern "C-unwind" fn CMMetadataFormatDescriptionCreateWithKeys(
    allocator: Option<&CFAllocator>,
    metadata_type: CMMetadataFormatType,
    keys: Option<&CFArray>,
    format_description_out: NonNull<*const CMMetadataFormatDescription>,
) -> i32

Available on crate feature CMFormatDescription only.

Safety

• keys generic must be of the correct type.
• format_description_out must be a valid pointer.