Merge pull request fluttercommunity#774 from Kronos-2701/master

Fixed : Playback speed reset on forwarding video

Author: diegotori

lib/src/cupertino/cupertino_controls.dart

@@ -49,7 +49,7 @@ class _CupertinoControlsState extends State<CupertinoControls>
   bool _subtitleOn = false;
   Timer? _bufferingDisplayTimer;
   bool _displayBufferingIndicator = false;
-
+  double selectedSpeed = 1.0;
   late VideoPlayerController controller;
 
   // We know that _chewieController is set in didChangeDependencies
@@ -559,6 +559,8 @@ class _CupertinoControlsState extends State<CupertinoControls>
 
         if (chosenSpeed != null) {
           controller.setPlaybackSpeed(chosenSpeed);
+
+          selectedSpeed = chosenSpeed;
         }
 
         if (_latestValue.isPlaying) {
@@ -748,20 +750,30 @@ class _CupertinoControlsState extends State<CupertinoControls>
     });
   }
 
-  void _skipBack() {
+  Future<void> _skipBack() async {
     _cancelAndRestartTimer();
     final beginning = Duration.zero.inMilliseconds;
     final skip =
         (_latestValue.position - const Duration(seconds: 15)).inMilliseconds;
-    controller.seekTo(Duration(milliseconds: math.max(skip, beginning)));
+    await controller.seekTo(Duration(milliseconds: math.max(skip, beginning)));
+    // Restoring the video speed to selected speed
+    // A delay of 1 second is added to ensure a smooth transition of speed after reversing the video as reversing is an asynchronous function
+    Future.delayed(const Duration(milliseconds: 1000), () {
+      controller.setPlaybackSpeed(selectedSpeed);
+    });
   }
 
-  void _skipForward() {
+  Future<void> _skipForward() async {
     _cancelAndRestartTimer();
     final end = _latestValue.duration.inMilliseconds;
     final skip =
         (_latestValue.position + const Duration(seconds: 15)).inMilliseconds;
-    controller.seekTo(Duration(milliseconds: math.min(skip, end)));
+    await controller.seekTo(Duration(milliseconds: math.min(skip, end)));
+    // Restoring the video speed to selected speed
+    // A delay of 1 second is added to ensure a smooth transition of speed after forwarding the video as forwaring is an asynchronous function
+    Future.delayed(const Duration(milliseconds: 1000), () {
+      controller.setPlaybackSpeed(selectedSpeed);
+    });
   }
 
   void _startHideTimer() {