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Replace AVAudioEngine with Audio Units; Temporarily add file audio pl…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| import AVFoundation | ||
| import CoreMedia | ||
| import CoreAudio | ||
|
|
||
| protocol AudioFilePlayerDelegate: AnyObject { | ||
| func didReceiveAudioSample(_ buffer: AVAudioPCMBuffer, time: AVAudioTime) | ||
| } | ||
|
|
||
| class AudioFilePlayer: NSObject { | ||
| private var audioFile: AVAudioFile? | ||
| private var audioEngine: AVAudioEngine = AVAudioEngine() | ||
| private var audioPlayerNode: AVAudioPlayerNode = AVAudioPlayerNode() | ||
| private var format: AVAudioFormat? | ||
| weak var delegate: (any AudioFilePlayerDelegate)? | ||
|
|
||
| override init() { | ||
| super.init() | ||
| loadAudioFile() | ||
| setupAudioEngine() | ||
| } | ||
|
|
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| private func loadAudioFile() { | ||
| guard let fileURL = Bundle.main.url(forResource: "audio", withExtension: "wav") else { | ||
| print("Audio file not found in bundle") | ||
| return | ||
| } | ||
|
|
||
| do { | ||
| let file = try AVAudioFile(forReading: fileURL) | ||
| self.audioFile = file | ||
| self.format = file.processingFormat | ||
| } catch { | ||
| print("Error loading audio file: \(error)") | ||
| } | ||
| } | ||
|
|
||
| private func setupAudioEngine() { | ||
| guard let format = self.format else { | ||
| print("Audio format is nil") | ||
| return | ||
| } | ||
|
|
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| audioEngine.attach(audioPlayerNode) | ||
| audioEngine.connect(audioPlayerNode, to: audioEngine.mainMixerNode, format: format) | ||
|
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| audioPlayerNode.volume = 0 | ||
|
|
||
| do { | ||
| try audioEngine.start() | ||
| } catch { | ||
| print("Error starting audio engine: \(error)") | ||
| } | ||
| } | ||
|
|
||
| func play() { | ||
| guard let audioFile = self.audioFile, let format = self.format else { | ||
| print("Audio file or format is nil") | ||
| return | ||
| } | ||
|
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| audioPlayerNode.scheduleFile(audioFile, at: nil) { | ||
| // File finished playing | ||
| } | ||
|
|
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| audioPlayerNode.installTap(onBus: 0, bufferSize: 1024, format: format) { [weak self] (buffer, time) in | ||
| self?.delegate?.didReceiveAudioSample(buffer, time: time) | ||
| } | ||
|
|
||
| audioPlayerNode.play() | ||
| } | ||
| } |
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