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reduce vlc seek buffering with better cache priming

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dirtydishes 2026-05-26 00:35:52 -04:00
parent 6ac2062822
commit 365dfb22f9
6 changed files with 553 additions and 18 deletions
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11
Dreamio/VLCNativePlaybackBackend.swift
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@ -151,7 +151,7 @@ final class VLCNativePlaybackBackend: NSObject, NativePlaybackBackend {
return
}
let clamped = max(0, min(1, position))
rangeCacheSession?.prefetch(aroundByteOffset: rangeCacheSession?.byteOffset(for: clamped) ?? 0)
rangeCacheSession?.prefetchForSeek(aroundByteOffset: rangeCacheSession?.byteOffset(for: clamped) ?? 0)
#if DEBUG
if let byteOffset = rangeCacheSession?.byteOffset(for: clamped) {
print("[DreamioVLC] seek targetPosition=\(clamped) byteOffset=\(byteOffset) mode=local-cache")
@ -171,7 +171,7 @@ final class VLCNativePlaybackBackend: NSObject, NativePlaybackBackend {
let nextTime = max(0, min(duration, currentTime + seconds))
if duration > 0 {
let nextPosition = Float(nextTime / duration)
rangeCacheSession?.prefetch(aroundByteOffset: rangeCacheSession?.byteOffset(for: nextPosition) ?? 0)
rangeCacheSession?.prefetchForSeek(aroundByteOffset: rangeCacheSession?.byteOffset(for: nextPosition) ?? 0)
#if DEBUG
if let byteOffset = rangeCacheSession?.byteOffset(for: nextPosition) {
print("[DreamioVLC] jump seconds=\(seconds) target=\(nextTime) byteOffset=\(byteOffset) mode=local-cache")
@ -604,6 +604,13 @@ final class VLCNativePlaybackBackend: NSObject, NativePlaybackBackend {
#if canImport(MobileVLCKit)
extension VLCNativePlaybackBackend: VLCMediaPlayerDelegate {
func mediaPlayerStateChanged(_ aNotification: Notification) {
Task { @MainActor [weak self] in
self?.handleMediaPlayerStateChanged()
}
}
@MainActor
private func handleMediaPlayerStateChanged() {
#if DEBUG
logPlaybackStateIfNeeded(stateName(mediaPlayer.state))
#endif