ios - 如何在 NSSecureCoding 中使用 CVImageBuffer 属性？

Question

我想发布CVImageBuffer到以下Apple API：

func updateServiceInfo(_ serviceInfo: [String : NSCoding & NSObjectProtocol])

这是我的代码：

final class BufferClass: NSObject, NSSecureCoding {
    static var supportsSecureCoding: Bool = true
    
    
    let buffer: CVImageBuffer?
    
    func encode(with coder: NSCoder) {
        coder.encode(buffer, forKey: "buffer")
    }
    
    required init(coder decoder: NSCoder) {
        buffer = decoder.decodeObject(forKey: "buffer") as! CVImageBuffer
    }
    
    init(buffer: CVImageBuffer) {
        self.buffer = buffer
    }
}

当我调用以下代码时：

let bufferClass = BufferClass(buffer: buffer)
updateServiceInfo(["buffer": bufferClass] )

我崩溃并显示以下消息：

Exception: *** -[NSXPCEncoder _checkObject:]: This coder only encodes objects that adopt NSSecureCoding (object is of class '__NSCFType').
*** -[NSXPCEncoder _checkObject:]: This coder only encodes objects that adopt NSSecureCoding (object is of class '__NSCFType').