fix(ios): player rotation

ios/Runner/MpvPlayer/MpvPlayerPlugin.swift

@@ -76,6 +76,9 @@ class MpvPlayerPlugin: NSObject, FlutterPlugin, FlutterStreamHandler, MpvPlayerD
         case "isInitialized":
             result(playerCore?.isInitialized ?? false)
 
+        case "updateFrame":
+            handleUpdateFrame(result: result)
+
         default:
             result(FlutterMethodNotImplemented)
         }
@@ -198,6 +201,13 @@ class MpvPlayerPlugin: NSObject, FlutterPlugin, FlutterStreamHandler, MpvPlayerD
         }
     }
 
+    private func handleUpdateFrame(result: @escaping FlutterResult) {
+        DispatchQueue.main.async { [weak self] in
+            self?.playerCore?.updateFrame()
+            result(nil)
+        }
+    }
+
     // MARK: - MpvPlayerDelegate
 
     func onPropertyChange(name: String, value: Any?) {

lib/mpv/src/player/player.dart

@@ -178,6 +178,13 @@ abstract class Player {
   /// controls are hidden. On other platforms, this is a no-op.
   Future<void> setControlsVisible(bool visible);
 
+  /// Update the video frame/surface dimensions.
+  ///
+  /// On iOS/macOS, this updates the Metal layer's frame to match the current
+  /// window size. Call this when the layout changes (e.g., device rotation).
+  /// On other platforms, this is a no-op.
+  Future<void> updateFrame();
+
   // ============================================
   // Lifecycle
   // ============================================

lib/mpv/src/player/player_native.dart

@@ -1,4 +1,5 @@
 import 'dart:async';
+import 'dart:io' show Platform;
 
 import 'package:flutter/services.dart';
 
@@ -491,6 +492,16 @@ class PlayerNative implements Player {
     // No-op on most platforms. Override on Linux for transparency workaround.
   }
 
+  @override
+  Future<void> updateFrame() async {
+    _checkDisposed();
+    if (!_initialized) return;
+    // Only iOS and macOS use Metal layer that needs frame updates
+    if (Platform.isIOS || Platform.isMacOS) {
+      await _methodChannel.invokeMethod('updateFrame');
+    }
+  }
+
   // ============================================
   // Lifecycle
   // ============================================

lib/screens/video_player_screen.dart

@@ -1184,14 +1184,14 @@ class VideoPlayerScreenState extends State<VideoPlayerScreen>
                       constraints.maxHeight,
                     );
 
-                    // Update player size in video filter manager
-                    if (_videoFilterManager != null) {
-                      WidgetsBinding.instance.addPostFrameCallback((_) {
-                        if (mounted) {
-                          _videoFilterManager!.updatePlayerSize(newSize);
-                        }
-                      });
-                    }
+                    // Update player size in video filter manager and native layer
+                    WidgetsBinding.instance.addPostFrameCallback((_) {
+                      if (mounted && player != null) {
+                        _videoFilterManager?.updatePlayerSize(newSize);
+                        // Update Metal layer frame on iOS/macOS for rotation
+                        player!.updateFrame();
+                      }
+                    });
 
                     return Video(
                       player: player!,

macos/Runner/MpvPlayer/MpvPlayerPlugin.swift

@@ -76,6 +76,9 @@ class MpvPlayerPlugin: NSObject, FlutterPlugin, FlutterStreamHandler, MpvPlayerD
         case "isInitialized":
             result(playerCore?.isInitialized ?? false)
 
+        case "updateFrame":
+            handleUpdateFrame(result: result)
+
         default:
             result(FlutterMethodNotImplemented)
         }
@@ -198,6 +201,13 @@ class MpvPlayerPlugin: NSObject, FlutterPlugin, FlutterStreamHandler, MpvPlayerD
         }
     }
 
+    private func handleUpdateFrame(result: @escaping FlutterResult) {
+        DispatchQueue.main.async { [weak self] in
+            self?.playerCore?.updateFrame()
+            result(nil)
+        }
+    }
+
     // MARK: - MpvPlayerDelegate
 
     func onPropertyChange(name: String, value: Any?) {