Audio getting disabled, Not able to control audio, When opening music player audio works but not on instagram or any other apps. Audio button on notification bar is greyed out as getting disabled.

Is there anyway we can add volume controls to adjust the volume settings from our phone? I’ve noticed we have to reply on the radio head unit to control our volume when it comes to our navigation and music. we should have full access to control it from our phone as well. Any thoughts?

I am stuck with some of my downloaded books not syncing correctly. A book that imported correctly to my library on Mac (7h of audio), only syncs to my iPhone as 4min audio. And I just can't find a way to make it work... All the sync is switched on in iCloud, but I sync them via cable anyway. Books downloaded as singular file seem to work, but books downloaded as chapters are not syncing correctly. My suspicion is either: Books that are downloaded as individual chapters only carry over the first chapter to the iPhone (why?!) iPhone runs on iOS18 Beta, while the Mac is still on Sonoma 14.5, which may be causing the issue (?) or something else entirely, that I am unaware of... Anyway, any input, helpful articles or advice how to sort this out would be much appreciated! Thanks.

I have a React website that uses getUserMedia to capture user audio. I'm displaying this website in an iOS mobile app using UIWebView in SwiftUI. The audio is correctly captured when the app is in focus. However, when the app goes to the home screen and runs in the background, the microphone audio gets cut off. This issue does not occur when the website is opened in iOS Safari. Here's my Info.plist and .entitlements file. I granted most, if not all, permissions for both files in an attempt to get it to work, but it still doesn't resolve the issue. Info.plist audio bluetooth-central bluetooth-peripheral external-accessory fetch location nearby-interaction processing push-to-talk remote-notification voip Entitlements.plist com.apple.developer.push-to-talk: true com.apple.developer.spatial-audio.profile-access: true inter-app-audio: true

Music app stops playing when switching to the background In apps that play music or music files, if you move to the home screen or run another app while the app is running, the music playback stops. Our app does not have the code to stop playing when switching to the background. We are guessing that some people experience this and others do not. We usually guide users to reboot their devices and try again. How can this phenomenon be improved in the code? Or is this a bug or error in the OS?

Hi, since the IoT cybersecurity, I need to hide the version of all sevices. For the 7000 port, AirTunes, I can't find the method to hide it. Like tomcat version hide, how can I hide the version of it?

Just updated to macOS Sequoia Beta 2, and all the sudden my speakers start making a pop sound when I watch YouTube or just when browsing. Any tips?👀

I am writing to report an issue encountered with the playback of HLS (HTTP Live Streaming) streams that I believe is specific to iOS version 17. The problem manifests when certain conditions are met during the playback of concatenated HLS segments, particularly those with low video bitrate. Below, I will detail the background, symptoms, and steps required to reproduce the issue. Background: Our business scenario requires concatenating two HLS playlists, referred to as 1.m3u8 and 2.m3u8, into a single playlist 12.m3u8. An example of such a playlist is as follows: #EXTM3U #EXT-X-VERSION:3 #EXT-X-ALLOW-CACHE:YES #EXT-X-TARGETDURATION:2 #EXT-X-MEDIA-SEQUENCE:0 #EXTINF:2.0, 1.1.ts #EXTINF:2.0, 1.2.ts #EXTINF:2.0, 1.3.ts #EXT-X-DISCONTINUITY #EXTINF:2.0, 2.1.ts #EXTINF:2.0, 2.2.ts #EXT-X-ENDLIST Problem Symptoms: On PC web browsers, Android devices, and iOS versions 13 and 15, the following is observed: Natural playback completion occurs without any issues. Seeking to different points within the stream (e.g., from 3 seconds to 9 seconds) works as expected. However, on iOS version 17, there is a significant issue: Natural playback completion is unaffected. When seeking to various points within the first playlist (1.m3u8) after playing for 1, 2, or 3 seconds, the audio for the last 3 seconds of 1.m3u8 gets lost. Conditions for Replication: The issue only arises when all the following conditions are satisfied: The video content is generated from a single image and an audio track, ensuring sound presence in the final 3 seconds. The video stream bitrate is below 500 Kbps. (Tested with 1393 Kbps bitrate, which did not trigger the issue.) The HLS streams are concatenated using the #EXT-X-DISCONTINUITY tag to form a virtual 11.m3u8 playlist. (No issues occur when streams are not concatenated.) Seek operations are performed during playback. (No issues occur without seek operations.) The issue is exclusive to iOS version 17. (No issues reported on iOS versions 13 and 15.) Disrupting any one of these conditions results in normal playback behavior. Steps to Reproduce: Using FFmpeg, generate a video from a single image and an audio track, with a suggested duration of 10 to 20 seconds for testing convenience. If the video's bitrate exceeds 1000 Kbps, consider transcoding it to 500 Kbps or lower to avoid potential edge-case issues. Convert the 1.mp4 file into 1.m3u8 using FFmpeg. The segment duration can be set to between 1 and 5 seconds (tested with both 2-second and 5-second durations). Duplicate 1.m3u8 as 2.m3u8, then concatenate 1.m3u8 and 2.m3u8 into 12.m3u8 as shown below: #EXTM3U #EXT-X-VERSION:3 #EXT-X-ALLOW-CACHE:YES #EXT-X-TARGETDURATION:2 #EXT-X-MEDIA-SEQUENCE:0 #EXTINF:2.0, 1.1.ts #EXTINF:2.0, 1.2.ts #EXT-X-DISCONTINUITY #EXTINF:2.0, 1.1.ts #EXTINF:2.0, 1.2.ts #EXT-X-ENDLIST On an iOS 17 device, play 12.m3u8 for 1, 2, or 3 seconds, then seek to any point between 7 and 9 seconds (within the duration of 1.m3u8). This action results in the loss of audio for the last 3 seconds of 1.m3u8.

Hello, this is building off of another post in which several other posters and I had already attempted solving the issue in hacky ways. I am using MPMusicPlayerController.applicationQueuePlayer. My end goal here is to dynamically add items to the queue when it has ended based on my application's business logic. There is no way for me to know what these items will be when I am initially setting the queue. I have an updated implementation that seems to cover most edge cases, except for a glaringly obvious one – if there is just one item in the queue, and the user skips the track via MPRemoteCommandCenter (eg. lock screen), then it does not work. Currently, when I receive a MPMusicPlayerControllerPlaybackStateDidChange notification, I run this block: if player.playbackState == .paused,            player.currentPlaybackTime == 0,            player.indexOfNowPlayingItem == 0 {             EndOfQueueManager.handle()         } In the absence of a mechanism to detect the end of the queue from the framework, I would love to add the ability to add a target to MPRemoteCommand, like you can do for AVPlayer. I have tried to do exactly that, but it does not work: MPRemoteCommandCenter.shared().nextTrackCommand.addTarget { (event) -> MPRemoteCommandHandlerStatus in         if queue.count == 1 {             EndOfQueueManager.handle() }         return .success } I already have a functioning AVPlayer implementation that achieves my goal without any compromises or edge cases. I would be very disappointed if there is no way to do this with MPMusicPlayerController – being notified about the queue ending feels like a fairly rudimentary API hook.

Hi. I saw that in iOS 18 Beta there is a property "transition" on the Music Kit's ApplicationMusicPlayer. However, in my app I am using MPMusicPlayerApplicationController because I want to play Apple Music songs, local songs and podcasts. But I didn't find an analogue property on MPMusicPlayerApplicationController to specify transitions between songs. Am I missing something? Thanks, Dirk

Hello, We are seeing some strange behaviour when using MPRemoteCommandCenter as well as UIKeyCommand in our app on iOS 17. We are finding that when a UIKeyCommand is trigerred via external keyboard to start playing some music (via our own custom CoreAudio driver), the keyboard becomes unresponsive for a few seconds before UIKeyCommands are triggered again. Strangely enough, if we comment out all our MPRemoteCommandCenter code, the UIKeyCommands work without going into the unresponsive state for a few seconds. ie UIKeyCommands: override open var keyCommands: [UIKeyCommand] { let commands = [UIKeyCommand(title: String(localized: "__PLAY_STOP__"), action: #selector(shortcutPlayStop(_:)), input: " "), UIKeyCommand(title: String(localized: "__PAUSE__"), action: #selector(shortcutPause(_:)), input: "."), /** etc **/] commands.forEach { $0.wantsPriorityOverSystemBehavior = true } return commands } and MPRemoteCommands: MPRemoteCommandCenter.shared().playCommand.addTarget { [weak self] _ in self?.doStuff() // etc return .success } Note this issue did not occur prior to iOS17 🤨 Any ideas what could be going on? Thank you!

Using the hardware volume buttons on the iPhone, you have 16 steps you can adjust your volume to. I want to implement a volume control slider in my app. I am updating the value of the slider using AVAudioSession.sharedInstance().outputVolume. The problem is that this returns values rounded to the nearest 0 or 5. This makes the slider jump around. .formatted() is not causing this problem. You can recreate the problem using code below. @main struct VolumeTestApp: App { init() { try? AVAudioSession.sharedInstance().setActive(true) } var body: some Scene { WindowGroup { ContentView() } } } struct ContentView: View { @State private var volume = Double() @State private var difference = Double() var body: some View { VStack { Text("The volume changed by \(difference.formatted())") Slider(value: $volume, in: 0...1) } .onReceive(AVAudioSession.sharedInstance().publisher(for: \.outputVolume), perform: { value in volume = Double(value) }) .onChange(of: volume) { oldValue, newValue in // Only used to make the problem more obvious if oldValue > newValue { difference = oldValue - newValue } else { difference = newValue - oldValue } } } } Here is a video of the problem in action: https://share.icloud.com/photos/00fmp7Vq1AkRetxcIP5EXeAZA What am I doing wrong or what can I do to avoid this? Thank you

Running in a Mac (Catalyst) target or Apple Silicon (designed for iPad). Just accessing the playbackStoreID from the MPMediaItem shows this error in the console: -[ITMediaItem valueForMPMediaEntityProperty:]: Unhandled MPMediaEntityProperty subscriptionStoreItemAdamID. The value returned is always “”. This works as expected on iOS and iPadOS, returning a valid playbackStoreID. import SwiftUI import MediaPlayer @main struct PSIDDemoApp: App { var body: some Scene { WindowGroup { Text("playbackStoreID demo") .task { let authResult = await MPMediaLibrary.requestAuthorization() if authResult == .authorized { if let item = MPMediaQuery.songs().items?.first { let persistentID = item.persistentID let playbackStoreID = item.playbackStoreID // <--- Here print("Item \(persistentID), \(playbackStoreID)") } } } } } } Xcode 15.1, also tested with Xcode 15.3 beta 2. MacOS Sonoma 14.3.1 FB13607631

Hi everyone, I am having a problem on AVPlayer when I try to play some videos. The video starts for a few seconds, but immediately after I see a black screen and in the console there is the following error: <__NSArrayM 0x14dbf9f30>( { StreamPlaylistError = "-12314"; comment = "have audio audio-aacl-54 in STREAMINF without EXT-X-MEDIA audio group"; date = "2024-05-13 20:46:19 +0000"; domain = CoreMediaErrorDomain; status = "-12642"; uri = "http://127.0.0.1:8080/master.m3u8"; }, { "c-conn-type" = 1; "c-severity" = 2; comment = "Playlist parse error"; "cs-guid" = "871C1871-D566-4A3A-8465-2C58FDC18A19"; date = "2024-05-13 20:46:19 +0000"; domain = CoreMediaErrorDomain; status = "-12642"; uri = "http://127.0.0.1:8080/master.m3u8"; } )

Is there a way to get the current queue items from an MPMusicPlayerController? I need to know when the items I've set to the queue finish playing completely but cannot find any way to do this. I am not using MusicKit but setting the queue via play parameters. From what I can tell so far, after the queue finishes playing, it pauses and resets to the first item in the queue. So even after playback is done, there is no way to know that it finished on its own.

I'm using the systemMusicPlayer to play music and want to update the playback time using addObserver forKeyPath. [self setMusicPlayer: [MPMusicPlayerController systemMusicPlayer]]; I've tried these two methods: [self addObserver:self forKeyPath:@"musicPlayer.currentPlaybackTime" options:NSKeyValueObservingOptionNew | NSKeyValueObservingOptionInitial context:&musicPlayer]; [self.musicPlayer addObserver:self forKeyPath:@"currentPlaybackTime" options:NSKeyValueObservingOptionNew | NSKeyValueObservingOptionInitial context:&musicPlayer]; I do get the initial values for currentPlaybackTime in: -(void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context but I never get any calls when the player is playing the song (the whole point). If I set the currentPlaybackTime to a specific value (locating manually using a slider), I get calls with the values I set (useless since I know what I am setting them to). How are we supposed to track the playback time without just polling it constantly?

Hi, just find that I can not play 3D movie stream: MV-HEVC/UHD/Dolby Vision/Dolby Digital/Dolby Atmos(website is https://developer.apple.com/streaming/examples) when I click View 3D example(fMP4), have below issue: my MacOS is 14.4.1 and M2 chip.

I am using below commad line to generate AES-128 HLS, mediafilesegmenter -iso-fragmented --encrypt-key-file=my.key -S -f /Volumes/Samsung/pattern/vision_pro/hls/xxx /Volumes/Samsung/pattern/vision_pro/xxx.mov but it always generates SAMPLE-AES, even I removed -S #EXT-X-KEY:METHOD=SAMPLE-AES,URI="enc.key",IV=0x7316166d6a85f56f3d4606eaebc3aa44 How I can generate AES-128 HLS? Thanks.

Some users of our app get a black screen when playing mp4 files on their phones. The users are all running iOS 17.3.1 and cannot catch the error message when playing a black screen. The user can play the video normally after restarting the mobile phone. However, we want to solve this problem from the code. We use two Avplayers to complete the sequential playback of multiple videos. override init(frame: CGRect) { super.init(frame: frame) layer.addSublayer(videoPlayerA) layer.addSublayer(videoPlayerB) } lazy var layers = [videoPlayerA, videoPlayerB] lazy var videoPlayerA: AVPlayerLayer = { let avPlayerLayer = AVPlayerLayer(player: AVPlayer()) avPlayerLayer.contentsScale = UIScreen.main.scale avPlayerLayer.videoGravity = .resizeAspectFill return avPlayerLayer }() lazy var videoPlayerB: AVPlayerLayer = { let avPlayerLayer = AVPlayerLayer(player: AVPlayer()) avPlayerLayer.contentsScale = UIScreen.main.scale avPlayerLayer.videoGravity = .resizeAspectFill return avPlayerLayer }() func play() { if let path = paths[safe: currentIndex] { currentVideoPath = path currentPlayer = AVPlayer(playerItem: AVPlayerItem(url: URL(fileURLWithPath: path))) layers.first?.player?.pause() layer.insertSublayer(layers.first ?? AVPlayerLayer(), below: layers.last) layers.swapAt(0, 1) layers.first?.player = currentPlayer layers.first?.player?.play() SHPlayerGlobalStatus.sharedInstance.isLocalPlayerPlaying = true try? AVAudioSession.sharedInstance().setCategory(.playback) try? AVAudioSession.sharedInstance().setActive(true) }

I am learning SwiftUI, I want to observe an AVPlayer status so I know when the videos is paused or not. My current approach is more less like this: I have VideosView that holds a list of a videos (in ZStack cards). VideoViews has a VideosViewModel. in VideosView i am calling in onAppear VideosViewModel.getItems... struct ItemModel: Identifiable, Codable, Hashable, Equatable { var id: String var author: String // video owner var url: URL? // url to the video var player: AVPlayer? // AVPlayer created based on self.url... mutating func setPlayer(_ avPlayer: AVPlayer) { self.player = avPlayer } } // vm class FeedViewModel: ObservableObject { @Published private(set) var items: [ItemModel] = [] func getItems() async { do { // fetch data from the API let data = try await dataService.fetchFeeds() // download and attach videos downloadFeedVideos(data) } catch { // .... } } private func downloadFeedVideos(_ feeds: [ItemModel]) { for index in feeds.indices { var item = feeds[index] if let videoURL = item.url { self.downloadQueue.queueDownloadIfFileNotExists( videoURL, DownloadOperation( session: URLSession.shared, downloadTaskURL: videoURL, completionHandler: { [weak self] (localURL, response, error) in guard let tempUrl = localURL else { return } let saveResult = self?.fileManagerService.saveInTemp(tempUrl, fileName: videoURL.lastPathComponent) switch saveResult { case .success(let savedURL): DispatchQueue.main.async { // maybe this is a wrong place to have it? item.setPlayer(AVPlayer(url: savedURL)) self?.items.append(item) if self?.items.count ?? 0 > 1 { // once first video is downloaded, use all device cores to fetch next videos // all newest iOS devices has 6 cores self?.downloadQueue.setMaxConcurrentOperationCount(.max) } } case .none: break case .failure(_): EventTracking().track("Video download fail", [ "id": item.id, "ulr": videoURL.absoluteString.decodeURL() ]) } }), { fileCacheURL in // file already downloaded DispatchQueue.main.async { item.setPlayer(AVPlayer(url: fileCacheURL)) self.items.append(item) } }) } } } } I found this article with some pseudo-code of how to track video playback state but I'm not sure how to implement it in my code.... https://developer.apple.com/documentation/avfoundation/media_playback/observing_playback_state