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shouldWaitForLoadingOfRequestedResource delegate method not getting called on TVOS app
I'm attempting to integrate DRM into the app. I've developed a prototype, but the delegate method shouldWaitForLoadingOfRequestedResource isn't being triggered on certain devices, although it functions correctly on others. Notably, it's invoked on Apple TV 4K (3rd generation) Wi-Fi (A2737) but not on Apple TV HD (A1625). Are there any specific configurations needed to ensure this method is invoked? let url = URL(string: RESOURCE_URL)! // Create the asset instance and the resource loader because we will be asked // for the license to playback DRM protected asset. let asset = AVURLAsset(url: url) let queue = DispatchQueue(label: CUSTOM_SERIAL_QUEUE_LABEL) asset.resourceLoader.setDelegate(self, queue: queue) // Create the player item and the player to play it back in. let playerItem = AVPlayerItem(asset: asset) let player = AVPlayer(playerItem: playerItem) // Create a new AVPlayerViewController and pass it a reference to the player. let controller = AVPlayerViewController() controller.player = player // Modally present the player and call the player's play() method when complete. present(controller, animated: true) { player.play() } } //Please note if your delegate method is not being called then you need to run on a REAL DEVICE func resourceLoader(_ resourceLoader: AVAssetResourceLoader, shouldWaitForLoadingOfRequestedResource loadingRequest: AVAssetResourceLoadingRequest) -> Bool { // Getting data for KSM server. Get the URL from tha manifest, we wil need it later as it // contains the assetId required for the license request. guard let url = loadingRequest.request.url else { print(#function, "Unable to read URL from loadingRequest") loadingRequest.finishLoading(with: NSError(domain: "", code: -1, userInfo: nil)) return false } // Link to your certificate on BuyDRM's side. // Use the commented section if you want to refer the certificate from your bundle i.e. Store Locally /* guard let certificateURL = Bundle.main.url(forResource: "certificate", withExtension: "der"), let certificateData = try? Data(contentsOf: certificateURL) else { print("failed...", #function, "Unable to read the certificate data.") loadingRequest.finishLoading(with: NSError(domain: "com.domain.error", code: -2, userInfo: nil)) return false } */ guard let certificateData = try? Data(contentsOf: URL(string: CERTIFICATE_URL)!) else { print(#function, "Unable to read the certificate data.") loadingRequest.finishLoading(with: NSError(domain: "", code: -2, userInfo: nil)) return false } // The assetId from the main/variant manifest - skd://***, the *** part. Get the SPC based on the // already collected data i.e. certificate and the assetId guard let contentId = url.host, let contentIdData = contentId.data(using: String.Encoding.utf8) else { loadingRequest.finishLoading(with: NSError(domain: "", code: -3, userInfo: nil)) print(#function, "Unable to read the SPC data.") return false } guard let spcData = try? loadingRequest.streamingContentKeyRequestData(forApp: certificateData, contentIdentifier: contentIdData, options: nil) else { loadingRequest.finishLoading(with: NSError(domain: "", code: -3, userInfo: nil)) print(#function, "Unable to read the SPC data.") return false } // Prepare to get the license i.e. CKC. let requestUrl = CKC_URL let stringBody = "spc=\(spcData.base64EncodedString())&assetId=\(contentId)" let postData = NSData(data: stringBody.data(using: String.Encoding.utf8)!) // Make the POST request with customdata set to the authentication XML. var request = URLRequest(url: URL(string: requestUrl)!) request.httpMethod = "POST" request.httpBody = postData as Data request.allHTTPHeaderFields = ["customdata" : ACCESS_TOKEN] let configuration = URLSessionConfiguration.default let session = URLSession(configuration: configuration) let task = session.dataTask(with: request) { data, response, error in if let data = data { // The response from the KeyOS MultiKey License server may be an error inside JSON. do { let parsedData = try JSONSerialization.jsonObject(with: data) as! [String:Any] let errorId = parsedData["errorid"] as! String let errorMsg = parsedData["errormsg"] as! String print(#function, "License request failed with an error: \(errorMsg) [\(errorId)]") } catch let error as NSError { print(#function, "The response may be a license. Moving on.", error) } // The response from the KeyOS MultiKey License server is Base64 encoded. let dataRequest = loadingRequest.dataRequest! // This command sends the CKC to the player. dataRequest.respond(with: Data(base64Encoded: data)!) loadingRequest.finishLoading() } else { print(#function, error?.localizedDescription ?? "Error during CKC request.") } } task.resume() // Tell the AVPlayer instance to wait. We are working on getting what it wants. return true }
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Mar ’24