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ios: prepare the next track only after the current one is playing and fully cached

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Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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rootandClaude Sonnet 5.5 committed 2026-10-20 17:40:59 -07:00
1 parent 4277688a38
commit a1cf0a00b3
1 file changed
+5 -1
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ios/Stemify/Playback/PlaybackManager.swift
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@@ -654,7 +654,11 @@ final class PlaybackManager: StemEngineListener, @unchecked Sendable {
guard let i = upcomingIndex() else { return } guard let i = upcomingIndex() else { return }
let item = queue[i] let item = queue[i]
nextTask = Task { @MainActor [weak self] in nextTask = Task { @MainActor [weak self] in
try? await Task.sleep(nanoseconds: 4_000_000_000) // let the current track's stems get a head start // Don't compete with the current track: wait until it is playing and fully cached.
while let self, !Task.isCancelled {
if let cur = self.current?.track, self.engine.playing, !self.engine.buffering, self.playableOffline(cur) { break }
try? await Task.sleep(nanoseconds: 1_000_000_000)
}
guard let self, !Task.isCancelled else { return } guard let self, !Task.isCancelled else { return }
// The normal load path reports failures. // The normal load path reports failures.
guard let (s, entry) = try? await self.openDetached(item.track, 0) else { return } guard let (s, entry) = try? await self.openDetached(item.track, 0) else { return }