There is a CustomPlayer class and inside it is using the MTAudioProcessingTap to modify the Audio buffer. Let's say there are instances A and B of the Custom Player class. When A and B are running, the process of B's MTAudioProcessingTap is stopped and finalize callback is coming up when A finishes the operation and the instance is terminated. B is still experiencing this with some parts left to proceed. Same code same project is not happening in iOS 17.0 or lower. At the same time when A is terminated, B can complete the task without any impact on B. What changes to iOS 17.1 are resulting in these results? I'd appreciate it if you could give me an answer on how to avoid these issues. let audioMix = AVMutableAudioMix() var audioMixParameters: [AVMutableAudioMixInputParameters] = [] try composition.tracks(withMediaType: .audio).forEach { track in let inputParameter = AVMutableAudioMixInputParameters(track: track) inputParameter.trackID = track.trackID var callbacks = MTAudioProcessingTapCallbacks( version: kMTAudioProcessingTapCallbacksVersion_0, clientInfo: UnsafeMutableRawPointer( Unmanaged.passRetained(clientInfo).toOpaque() ), init: { tap, clientInfo, tapStorageOut in tapStorageOut.pointee = clientInfo }, finalize: { tap in Unmanaged<ClientInfo>.fromOpaque(MTAudioProcessingTapGetStorage(tap)).release() }, prepare: nil, unprepare: nil, process: { tap, numberFrames, flags, bufferListInOut, numberFramesOut, flagsOut in var timeRange = CMTimeRange.zero let status = MTAudioProcessingTapGetSourceAudio(tap, numberFrames, bufferListInOut, flagsOut, &timeRange, numberFramesOut) if noErr == status { .... } }) var tap: Unmanaged<MTAudioProcessingTap>? let status = MTAudioProcessingTapCreate(kCFAllocatorDefault, &callbacks, kMTAudioProcessingTapCreationFlag_PostEffects, &tap) guard noErr == status else { return } inputParameter.audioTapProcessor = tap?.takeUnretainedValue() audioMixParameters.append(inputParameter) tap?.release() } audioMix.inputParameters = audioMixParameters return audioMix

I'm played videos using AVPlayer, AVPlayerItem and AVVideoComposition. Select video files from photo album or file and create AVVideoCompositionInstructionProtocol. Set the desired CMTimeRange for each file and create an AVVideoCompositionInstructionProtocol. In addition, instructions are included using AVMutableVideoComposition, and AVPlayerItem is playing using composition. It plays well in normal situations, but the AVPlayer does not play when using about 30 video files. There is no response when you press play and sometimes an AVFoundationErrorDomainCode "-11819" error occurs. Why is this happen? I would appreciate it if you could let me know what I need to do to solve this.