Fix muxed video extraction #172.

Better dis/likes data extraction.

lib/src/reverse_engineering/pages/watch_page.dart

@@ -54,30 +54,34 @@ class WatchPage extends YoutubePage<_InitialData> {
       root.querySelector('meta[property="og:url"]') != null;
 
   ///
-  int get videoLikeCount => int.parse(_videoLikeExp
+  int get videoLikeCount =>
-          .firstMatch(root.outerHtml)
+      initialData.likesCount ??
-          ?.group(1)
+      int.parse(_videoLikeExp
-          ?.stripNonDigits()
+              .firstMatch(root.outerHtml)
-          .nullIfWhitespace ??
+              ?.group(1)
-      root
+              ?.stripNonDigits()
-          .querySelector('.like-button-renderer-like-button')
+              .nullIfWhitespace ??
-          ?.text
+          root
-          .stripNonDigits()
+              .querySelector('.like-button-renderer-like-button')
-          .nullIfWhitespace ??
+              ?.text
-      '0');
+              .stripNonDigits()
+              .nullIfWhitespace ??
+          '0');
 
   ///
-  int get videoDislikeCount => int.parse(_videoDislikeExp
+  int get videoDislikeCount =>
-          .firstMatch(root.outerHtml)
+      initialData.disLikesCount ??
-          ?.group(1)
+      int.parse(_videoDislikeExp
-          ?.stripNonDigits()
+              .firstMatch(root.outerHtml)
-          .nullIfWhitespace ??
+              ?.group(1)
-      root
+              ?.stripNonDigits()
-          .querySelector('.like-button-renderer-dislike-button')
+              .nullIfWhitespace ??
-          ?.text
+          root
-          .stripNonDigits()
+              .querySelector('.like-button-renderer-dislike-button')
-          .nullIfWhitespace ??
+              ?.text
-      '0');
+              .stripNonDigits()
+              .nullIfWhitespace ??
+          '0');
 
   String? get commentsContinuation => initialData.commentsContinuation;
 
@@ -159,6 +163,60 @@ class WatchPlayerConfig implements PlayerConfigBase {
 class _InitialData extends InitialData {
   _InitialData(JsonMap root) : super(root);
 
+  late final int? likesCount = _getLikes();
+  late final int? disLikesCount = _getDislikes();
+
+  int? _getLikes() {
+    if (root['contents'] != null) {
+      final likes = root
+          .get('contents')
+          ?.get('twoColumnWatchNextResults')
+          ?.get('results')
+          ?.get('results')
+          ?.getList('contents')
+          ?.firstWhereOrNull((e) => e['videoPrimaryInfoRenderer'] != null)
+          ?.get('videoPrimaryInfoRenderer')
+          ?.get('videoActions')
+          ?.get('menuRenderer')
+          ?.getList('topLevelButtons')
+          ?.firstWhereOrNull((e) => e['toggleButtonRenderer'] != null)
+          ?.get('toggleButtonRenderer')
+          ?.get('defaultText')
+          ?.get('accessibility')
+          ?.get('accessibilityData')
+          ?.getT<String>('label');
+
+      return likes.parseInt();
+    }
+    return null;
+  }
+
+  int? _getDislikes() {
+    if (root['contents'] != null) {
+      final likes = root
+          .get('contents')
+          ?.get('twoColumnWatchNextResults')
+          ?.get('results')
+          ?.get('results')
+          ?.getList('contents')
+          ?.firstWhereOrNull((e) => e['videoPrimaryInfoRenderer'] != null)
+          ?.get('videoPrimaryInfoRenderer')
+          ?.get('videoActions')
+          ?.get('menuRenderer')
+          ?.getList('topLevelButtons')
+          ?.where((e) => e['toggleButtonRenderer'] != null)
+          .elementAtSafe(1)
+          ?.get('toggleButtonRenderer')
+          ?.get('defaultText')
+          ?.get('accessibility')
+          ?.get('accessibilityData')
+          ?.getT<String>('label');
+
+      return likes.parseInt();
+    }
+    return null;
+  }
+
   JsonMap? getContinuationContext() {
     if (root['contents'] != null) {
       return root
@@ -167,8 +225,8 @@ class _InitialData extends InitialData {
           ?.get('results')
           ?.get('results')
           ?.getList('contents')
-          ?.firstWhere((e) => e['itemSectionRenderer'] != null)
+          ?.firstWhereOrNull((e) => e['itemSectionRenderer'] != null)
-          .get('itemSectionRenderer')
+          ?.get('itemSectionRenderer')
           ?.getList('contents')
           ?.firstOrNull
           ?.get('continuationItemRenderer')

lib/src/reverse_engineering/player/player_response.dart

@@ -96,8 +96,7 @@ class PlayerResponse {
   late final List<StreamInfoProvider> muxedStreams = root
           .get('streamingData')
           ?.getList('formats')
-          ?.where((e) => e['url'] != null)
+          ?.map((e) => _StreamInfo(e, StreamSource.muxed))
-          .map((e) => _StreamInfo(e, StreamSource.muxed))
           .cast<StreamInfoProvider>()
           .toList() ??
       const <StreamInfoProvider>[];