refa player (#1848)

* tweak

* Reapply "opt: audio uri" (#1833)

This reverts commit 8e726f49b2.

* opt: player

* opt: player

* refa: create player

* refa: player

* opt: UaType

* fix: sb seek preview

* opt: setSub

* fix: screenshot

* opt: unnecessary final player state

* opt: player track

* opt FileSource constructor [skip ci]

* fixes

* fix: dispose player

* fix: quote

* update

* fix: multi ua & remove unused loop

* remove unneeded check [skip ci]

---------

Co-authored-by: dom <githubaccount56556@proton.me>

lib/common/widgets/image_viewer/gallery_viewer.dart

@@ -72,11 +72,9 @@ class _GalleryViewerState extends State<GalleryViewer>
   late final RxInt _currIndex;
   GlobalKey? _key;
 
+  late bool _hasInit = false;
   Player? _player;
-  Player get _effectivePlayer => _player ??= Player();
   VideoController? _videoController;
-  VideoController get _effectiveVideoController =>
-      _videoController ??= VideoController(_effectivePlayer);
 
   late final PageController _pageController;
 
@@ -99,6 +97,23 @@ class _GalleryViewerState extends State<GalleryViewer>
         : url.http2https;
   }
 
+  Future<void> _initPlayer() async {
+    assert(_player == null);
+    final player = await Player.create();
+    _videoController = await VideoController.create(player);
+    if (!mounted) {
+      player.dispose();
+      _videoController = null;
+      return;
+    }
+    _player = player;
+    final currItem = widget.sources[_currIndex.value];
+    if (currItem.sourceType == .livePhoto) {
+      player.open(Media(currItem.liveUrl!));
+      _currIndex.refresh();
+    }
+  }
+
   @override
   void initState() {
     super.initState();
@@ -230,7 +245,6 @@ class _GalleryViewerState extends State<GalleryViewer>
       ..onDoubleTap = null
       ..dispose();
     _longPressGestureRecognizer.dispose();
-    _currIndex.close();
     if (widget.quality != _quality) {
       for (final item in widget.sources) {
         if (item.sourceType == SourceType.networkImage) {
@@ -238,6 +252,7 @@ class _GalleryViewerState extends State<GalleryViewer>
         }
       }
     }
+    Future.delayed(const Duration(milliseconds: 200), _currIndex.close);
     super.dispose();
   }
 
@@ -317,7 +332,12 @@ class _GalleryViewerState extends State<GalleryViewer>
 
   void _playIfNeeded(SourceModel item) {
     if (item.sourceType == .livePhoto) {
-      _effectivePlayer.open(Media(item.liveUrl!));
+      if (_player != null) {
+        _player!.open(Media(item.liveUrl!));
+      } else if (!_hasInit) {
+        _hasInit = true;
+        _initPlayer();
+      }
     }
   }
 
@@ -421,7 +441,7 @@ class _GalleryViewerState extends State<GalleryViewer>
       case SourceType.livePhoto:
         child = Obx(
           key: _key,
-          () => _currIndex.value == index
+          () => _currIndex.value == index && _videoController != null
               ? Viewer(
                   minScale: widget.minScale,
                   maxScale: widget.maxScale,
@@ -434,9 +454,9 @@ class _GalleryViewerState extends State<GalleryViewer>
                   horizontalDragGestureRecognizer:
                       _horizontalDragGestureRecognizer,
                   onChangePage: _onChangePage,
-                  child: AbsorbPointer(
-                    child: Video(
-                      controller: _effectiveVideoController,
+                  child: FittedBox(
+                    child: SimpleVideo(
+                      controller: _videoController!,
                       fill: Colors.transparent,
                     ),
                   ),