Added seekbar data

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeService.java

@@ -175,6 +175,11 @@ public class YoutubeService extends StreamingService {
         return YoutubeCommentsLinkHandlerFactory.getInstance();
     }
 
+    @Override
+    public StreamExtractor getStreamExtractor(String url) throws ExtractionException {
+        return super.getStreamExtractor(url);
+    }
+
     @Override
     public CommentsExtractor getCommentsExtractor(ListLinkHandler urlIdHandler)
             throws ExtractionException {

extractor/src/main/java/org/schabi/newpipe/extractor/stream/StreamInfo.java

@@ -335,6 +335,12 @@ public class StreamInfo extends Info {
             streamInfo.addError(e);
         }
 
+        try {
+            streamInfo.setFrames(extractor.getFrames());
+        } catch (Exception e) {
+            streamInfo.addError(e);
+        }
+
         streamInfo.setRelatedItems(ExtractorHelper.getRelatedItemsOrLogError(streamInfo, extractor));
 
         return streamInfo;
@@ -386,6 +392,11 @@ public class StreamInfo extends Info {
     private List<StreamSegment> streamSegments = new ArrayList<>();
     private List<MetaInfo> metaInfo = new ArrayList<>();
 
+    /**
+     * Frames, e.g. for the storyboard / seekbar thumbnail preview
+     */
+    private List<Frameset> frames = new ArrayList<>();
+
     /**
      * Get the stream type
      *
@@ -711,6 +722,14 @@ public class StreamInfo extends Info {
         this.metaInfo = metaInfo;
     }
 
+    public List<Frameset> getFrames() {
+        return frames;
+    }
+
+    public void setFrames(List<Frameset> frames) {
+        this.frames = frames;
+    }
+
     @Nonnull
     public List<MetaInfo> getMetaInfo() {
         return this.metaInfo;