post Video Using Alamofire, error in the headers

I try to upload a video using Alamofire with its upload method - > multipartFormData, but I get an error 401, for the headers, it is assumed that the headers only ask me - > form-data and a token, I have it this way:

           func headersData() -> [String: String] {
             guard let user = OfflineHandler.shared.getUser() else {
             return [ "Content-Type": "multipart/form-data"]
            }
             return [
               "Content-Type": "multipart/form-data",
               "Authorization": user.token
             ]
           }

and the headers I add them in the following way:

          func requestPOSTUppload(_ route: String, params: [String: AnyObject] = [:],
                        onComplete: @escaping (SessionManager.MultipartFormDataEncodingResult) -> Void ) {
    let threshHold: UInt64 = UInt64("video") ?? UInt64()
    Alamofire.upload(multipartFormData: { (formData) in
        for (key, value) in params {
             multipartFormData.append(paramsData, withName: key, fileName: "file", mimeType: "video/mp4")
            let paramsData: Data = NSKeyedArchiver.archivedData(withRootObject: value)
            formData.append(paramsData, withName: key)
        }
    }, usingThreshold: threshHold, to: route, method: .post, headers: headersData(), encodingCompletion: onComplete)
}

then I add the parameters from another function

       func uploadVideo(accountId: String, file: NSData, post: PostSummary,
                 onComplete: @escaping(SessionManager.MultipartFormDataEncodingResult) -> Void) {
    let path = route("video")
    let params = [
        "accountId": accountId,
        "file": file,
        "post": post.getParamsVideo()] as [String: AnyObject]
    requestPOSTUppload(path, params: params, onComplete: onComplete)
}

and when calling the function I do the following

        func uploadVideo() {
    guard
        let account = OfflineHandler.shared.getUser()?.getSelectAccount(),
        let post = post,
        let file = video else { return }
    api.uploadVideo(accountId: account.id, file: file, post: post) { (result) in
        switch result {
        case .success(request: let request, streamingFromDisk: _, streamFileURL: _):
            request.response(completionHandler: { (dataResponse) in
                guard let response = dataResponse.response else { return }
                switch response.statusCode {
                case 200:
                    print("success")
                    self.navigationController?.popToRootViewController(animated: true)
                case 300 ... 400:
                    print(dataResponse.response)
                case 401 ... 500:
                    print(dataResponse.response)
                default:
                    break
                }
            })
        case .failure(let error as NSError):
            print(error.userInfo)
        }
    }
}

but I get the error 401 of the headers along that is happening to me ?? thank you, advance!