a little something here...

2024-07-29 15:54:50 -07:00
parent 43ba0f21f6
commit 8d03297de6
6 changed files with 163 additions and 1 deletions
@@ -0,0 +1,64 @@
+//
+//  HLSDownload.swift
+//  ExpoBlueskySwissArmy
+//
+//  Created by Hailey on 7/29/24.
+//
+
+import Foundation
+import AVKit
+
+class HLSDownload {
+  private let avAsset: AVAsset
+  private var exportSession: AVAssetExportSession?
+  let sourceUrl: URL
+  
+  init (sourceUrl: URL) {
+    self.sourceUrl = sourceUrl
+    self.avAsset = AVAsset(url: sourceUrl)
+  }
+  
+  func download(progress: @escaping(Float) -> Void) async -> URL? {
+    guard let exportSession = AVAssetExportSession(asset: self.avAsset, presetName: AVAssetExportPresetHighestQuality) else {
+      // @TODO return an error for the user here
+      print("Export session error")
+      return nil
+    }
+    
+    let outDir = FileManager().urls(for: .cachesDirectory, in: .userDomainMask)[0]
+    guard let outUrl = URL(string: "\(outDir.absoluteString)\(ProcessInfo.processInfo.globallyUniqueString).mp4") else {
+      print("oops failed to make a url")
+      return nil
+    }
+    
+    print(outUrl.absoluteString)
+    
+    exportSession.outputFileType = AVFileType.mp4
+    exportSession.outputURL =  outUrl
+    
+    let timer = Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { (_: Timer) in
+      // Do something here
+    }
+    
+    self.exportSession = exportSession
+    await exportSession.export()
+    
+    // Update with final progress
+    progress(1)
+    // Stop calling the callback
+    timer.invalidate()
+    
+    return outUrl
+  }
+  
+  func progress() -> Float {
+    guard let exportSession = self.exportSession else {
+      return 0
+    }
+    return exportSession.progress
+  }
+  
+  func cancel() {
+    // Cancel the download
+  }
+}