use window manager to determine device rotation in android

Implements HLS-compatible fragmented MP4 recording on Android using
AndroidX Media3 FragmentedMp4Muxer, matching the iOS implementation.

Changes:
- Add FragmentedRecordingManager for fMP4 segment output
- Add ChunkedRecorderInterface to abstract recorder implementations
- Add onInitSegmentReady callback for init segment (init.mp4)
- Update onVideoChunkReady to include segment duration
- RecordingSession now uses FragmentedRecordingManager by default

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

package/android/src/main/java/com/mrousavy/camera/core/RecordingSession.kt

@@ -44,14 +44,8 @@ class RecordingSession(
 
   data class Video(val path: String, val durationMs: Long, val size: Size)
 
-  // Strip file:// prefix if present (expo-file-system returns URIs with this prefix)
+  // Normalize path - expo-file-system passes file:// URIs but File expects raw paths
-  private val outputPath: File = File(
+  private val outputPath: File = File(filePath.removePrefix("file://"))
-    if (filePath.startsWith("file://")) {
-      filePath.removePrefix("file://")
-    } else {
-      filePath
-    }
-  )
 
   private val bitRate = getBitRate()
 

package/ios/Core/CameraSession+Video.swift

@@ -20,6 +20,9 @@ extension CameraSession {
                       onError: @escaping (_ error: CameraError) -> Void) {
     // Run on Camera Queue
     CameraQueues.cameraQueue.async {
+      // Normalize path - expo-file-system passes file:// URIs but FileManager expects raw paths
+      let normalizedPath = filePath.hasPrefix("file://") ? String(filePath.dropFirst(7)) : filePath
+
       let start = DispatchTime.now()
       ReactLogger.log(level: .info, message: "Starting Video recording...")
 
@@ -38,11 +41,27 @@ extension CameraSession {
       // Callback for when new chunks are ready
       let onChunkReady: (ChunkedRecorder.Chunk) -> Void = { chunk in
         guard let delegate = self.delegate else {
+          ReactLogger.log(level: .warning, message: "Chunk ready but delegate is nil, dropping chunk: \(chunk)")
           return
         }
         delegate.onVideoChunkReady(chunk: chunk)
       }
 
+      // Callback for when a chunk write fails (e.g. init file write failure)
+      let onChunkError: (Error) -> Void = { error in
+        ReactLogger.log(level: .error, message: "Chunk write error, stopping recording: \(error.localizedDescription)")
+        // Stop recording immediately
+        if let session = self.recordingSession {
+          session.stop(clock: self.captureSession.clock)
+        }
+        // Surface error to RN
+        if let cameraError = error as? CameraError {
+          onError(cameraError)
+        } else {
+          onError(.capture(.fileError))
+        }
+      }
+
       // Callback for when the recording ends
       let onFinish = { (recordingSession: RecordingSession, status: AVAssetWriter.Status, error: Error?) in
         defer {
@@ -82,22 +101,23 @@ extension CameraSession {
         }
       }
 
-      if !FileManager.default.fileExists(atPath: filePath) {
+      if !FileManager.default.fileExists(atPath: normalizedPath) {
         do {
-          try FileManager.default.createDirectory(atPath: filePath, withIntermediateDirectories: true)
+          try FileManager.default.createDirectory(atPath: normalizedPath, withIntermediateDirectories: true)
         } catch {
           onError(.capture(.createRecordingDirectoryError(message: error.localizedDescription)))
           return
         }
       }
 
-      ReactLogger.log(level: .info, message: "Will record to temporary file: \(filePath)")
+      ReactLogger.log(level: .info, message: "Will record to temporary file: \(normalizedPath)")
 
       do {
         // Create RecordingSession for the temp file
-        let recordingSession = try RecordingSession(outputDiretory: filePath,
+        let recordingSession = try RecordingSession(outputDiretory: normalizedPath,
                                                     fileType: options.fileType,
                                                     onChunkReady: onChunkReady,
+                                                    onChunkError: onChunkError,
                                                     completion: onFinish)
 
         // Init Audio + Activate Audio Session (optional)

package/ios/Core/ChunkedRecorder.swift

@@ -24,12 +24,14 @@ class ChunkedRecorder: NSObject {
 
   let outputURL: URL
   let onChunkReady: ((Chunk) -> Void)
+  let onError: ((Error) -> Void)?
 
   private var chunkIndex: UInt64 = 0
 
-  init(outputURL: URL, onChunkReady: @escaping ((Chunk) -> Void)) throws {
+  init(outputURL: URL, onChunkReady: @escaping ((Chunk) -> Void), onError: ((Error) -> Void)? = nil) throws {
     self.outputURL = outputURL
     self.onChunkReady = onChunkReady
+    self.onError = onError
     guard FileManager.default.fileExists(atPath: outputURL.path) else {
       throw CameraError.unknown(message: "output directory does not exist at: \(outputURL.path)", cause: nil)
     }
@@ -56,28 +58,36 @@ extension ChunkedRecorder: AVAssetWriterDelegate {
 
   private func saveInitSegment(_ data: Data) {
     let url = outputURL.appendingPathComponent("init.mp4")
-    save(data: data, url: url)
+    do {
-    onChunkReady(url: url, type: .initialization)
+      try data.write(to: url)
+      onChunkReady(url: url, type: .initialization)
+    } catch {
+      ReactLogger.log(level: .error, message: "Failed to write init file \(url): \(error.localizedDescription)")
+      onError?(CameraError.capture(.fileError))
+    }
   }
 
   private func saveSegment(_ data: Data, report: AVAssetSegmentReport?) {
     let name = "\(chunkIndex).mp4"
     let url = outputURL.appendingPathComponent(name)
-    save(data: data, url: url)
+    if save(data: data, url: url) {
-    let duration = report?
+      let duration = report?
-      .trackReports
+        .trackReports
-      .filter { $0.mediaType == .video }
+        .filter { $0.mediaType == .video }
-      .first?
+        .first?
-      .duration
+        .duration
-    onChunkReady(url: url, type: .data(index: chunkIndex, duration: duration))
+      onChunkReady(url: url, type: .data(index: chunkIndex, duration: duration))
-    chunkIndex += 1
+      chunkIndex += 1
+    }
   }
 
-  private func save(data: Data, url: URL) {
+  private func save(data: Data, url: URL) -> Bool {
     do {
       try data.write(to: url)
+      return true
     } catch {
       ReactLogger.log(level: .error, message: "Unable to write \(url): \(error.localizedDescription)")
+      return false
     }
   }
 

package/ios/Core/RecordingSession.swift

@@ -74,12 +74,13 @@ class RecordingSession {
   init(outputDiretory: String,
        fileType: AVFileType,
        onChunkReady: @escaping ((ChunkedRecorder.Chunk) -> Void),
+       onChunkError: ((Error) -> Void)? = nil,
        completion: @escaping (RecordingSession, AVAssetWriter.Status, Error?) -> Void) throws {
     completionHandler = completion
 
     do {
       let outputURL = URL(fileURLWithPath: outputDiretory)
-      recorder = try ChunkedRecorder(outputURL: outputURL, onChunkReady: onChunkReady)
+      recorder = try ChunkedRecorder(outputURL: outputURL, onChunkReady: onChunkReady, onError: onChunkError)
       assetWriter = AVAssetWriter(contentType: UTType(fileType.rawValue)!)
       assetWriter.shouldOptimizeForNetworkUse = false
       assetWriter.outputFileTypeProfile = .mpeg4AppleHLS