[duplicated subtitle][bug] Updated YoutubeStreamExtractor.java to integrate deduplicated subtitles, calling checkAndDeduplicate() to remove duplicates and store results in cache.

Author: TransZAllen

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeStreamExtractor.java

@@ -82,6 +82,8 @@
 import org.schabi.newpipe.extractor.utils.LocaleCompat;
 import org.schabi.newpipe.extractor.utils.Pair;
 import org.schabi.newpipe.extractor.utils.Parser;
+import org.schabi.newpipe.extractor.utils.SubtitleDeduplicator;
+import org.schabi.newpipe.extractor.utils.SubtitleOrigin;
 import org.schabi.newpipe.extractor.utils.Utils;
 
 import java.io.IOException;
@@ -740,8 +742,17 @@ public List<SubtitlesStream> getSubtitles(final MediaFormat format) throws Parsi
                         // Remove translation language
                         .replaceAll("&tlang=[^&]*", "");
 
+                final String remoteSubtitleUrl = cleanUrl + "&fmt=" + format.getSuffix();
+                String subtitleUrl = null;
+                final SubtitleOrigin thisSubtitleOrigin = SubtitleDeduplicator.getSubtitleOrigin(
+                                                                            isAutoGenerated,
+                                                                            false);
+                subtitleUrl = SubtitleDeduplicator.checkAndDeduplicate(remoteSubtitleUrl,
+                                                                       format,
+                                                                       thisSubtitleOrigin);
+
                 subtitlesToReturn.add(new SubtitlesStream.Builder()
-                        .setContent(cleanUrl + "&fmt=" + format.getSuffix(), true)
+                        .setContent(subtitleUrl, true)
                         .setMediaFormat(format)
                         .setLanguageCode(languageCode)
                         .setAutoGenerated(isAutoGenerated)