Rocky
31f5937a7f
Reduce extension memory pressure and delivery races while adding richer candidates, tactile feedback, and safer two-level creative polishing.
26 lines
890 B
Swift
26 lines
890 B
Swift
// AudioBufferSnapshot+AVFoundation.swift
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// OSGKeyboard · HostSupport
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//
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// AVAudioPCMBuffer → AudioBufferSnapshot copy helper. Kept out of Shared so
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// the keyboard extension does not link AVFoundation for this type alone.
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import AVFoundation
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import Foundation
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#if canImport(OSGKeyboardShared)
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import OSGKeyboardShared
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#endif
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extension AudioBufferSnapshot {
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/// Construct from an `AVAudioPCMBuffer` by copying out the channel data.
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public init(buffer: AVAudioPCMBuffer) {
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guard let channelData = buffer.floatChannelData else {
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self.init(samples: [], sampleRate: buffer.format.sampleRate)
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return
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}
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let n = Int(buffer.frameLength)
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var copy = [Float](repeating: 0, count: n)
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memcpy(©, channelData[0], n * MemoryLayout<Float>.size)
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self.init(samples: copy, sampleRate: buffer.format.sampleRate)
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}
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}
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