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Merge pull request #1314 from shogo4405/feature/append-audio-buffer
Add stream.appendAudioBuffer interface.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| import AVFoundation | ||
| import Foundation | ||
| import HaishinKit | ||
|
|
||
| protocol AudioCaptureDelegate: AnyObject { | ||
| func audioCapture(_ audioCapture: AudioCapture, buffer: AVAudioBuffer, time: AVAudioTime) | ||
| } | ||
|
|
||
| final class AudioCapture { | ||
| var isRunning: Atomic<Bool> = .init(false) | ||
| var delegate: (any AudioCaptureDelegate)? | ||
| private let audioEngine = AVAudioEngine() | ||
| } | ||
|
|
||
| extension AudioCapture: Running { | ||
| func startRunning() { | ||
| guard !isRunning.value else { | ||
| return | ||
| } | ||
| let input = audioEngine.inputNode | ||
| let mixer = audioEngine.mainMixerNode | ||
| audioEngine.connect(input, to: mixer, format: input.inputFormat(forBus: 0)) | ||
| input.installTap(onBus: 0, bufferSize: 1024, format: input.inputFormat(forBus: 0)) { buffer, when in | ||
| self.delegate?.audioCapture(self, buffer: buffer, time: when) | ||
| } | ||
| do { | ||
| try audioEngine.start() | ||
| isRunning.mutate { $0 = true } | ||
| } catch { | ||
| logger.error(error) | ||
| } | ||
| } | ||
|
|
||
| func stopRunning() { | ||
| guard isRunning.value else { | ||
| return | ||
| } | ||
| audioEngine.stop() | ||
| isRunning.mutate { $0 = false } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| import AVFoundation | ||
| import CoreMedia | ||
| import Foundation | ||
|
|
||
| extension AVAudioTime { | ||
| func makeTime() -> CMTime { | ||
| return .init(value: CMTimeValue(sampleTime), timescale: CMTimeScale(sampleRate)) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| import AVFoundation | ||
| import Foundation | ||
|
|
||
| extension CMTime { | ||
| func makeAudioTime() -> AVAudioTime { | ||
| return .init(sampleTime: value, atRate: Double(timescale)) | ||
| } | ||
| } |
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