fix issue with originalUrl

extractor/src/main/java/org/schabi/newpipe/extractor/Info.java

@@ -27,7 +27,7 @@ public abstract class Info implements Serializable {
      *
      * @see Extractor#getOriginalUrl()
      */
-    private final String originalUrl;
+    private String originalUrl;
     private final String name;
 
     private final List<Throwable> errors = new ArrayList<>();
@@ -62,6 +62,12 @@ public abstract class Info implements Serializable {
         return getClass().getSimpleName() + "[url=\"" + url + "\"" + ifDifferentString + ", name=\"" + name + "\"]";
     }
 
+    // if you use an api and want to handle the website url
+    // overriding original url is essential
+    public void setOriginalUrl(String url) {
+        originalUrl = url;
+    }
+
     public int getServiceId() {
         return serviceId;
     }

extractor/src/main/java/org/schabi/newpipe/extractor/channel/ChannelInfo.java

@@ -61,7 +61,11 @@ public class ChannelInfo extends ListInfo<StreamInfoItem> {
                 extractor.getLinkHandler(),
                 extractor.getName());
 
-
+        try {
+            info.setOriginalUrl(extractor.getOriginalUrl());
+        } catch (Exception e) {
+            info.addError(e);
+        }
         try {
             info.setAvatarUrl(extractor.getAvatarUrl());
         } catch (Exception e) {

extractor/src/main/java/org/schabi/newpipe/extractor/playlist/PlaylistInfo.java

@@ -47,6 +47,11 @@ public class PlaylistInfo extends ListInfo<StreamInfoItem> {
                 extractor.getLinkHandler(),
                 extractor.getName());
 
+        try {
+            info.setOriginalUrl(extractor.getOriginalUrl());
+        } catch (Exception e) {
+            info.addError(e);
+        }
         try {
             info.setStreamCount(extractor.getStreamCount());
         } catch (Exception e) {

extractor/src/main/java/org/schabi/newpipe/extractor/search/SearchInfo.java

@@ -37,6 +37,11 @@ public class SearchInfo extends ListInfo<InfoItem> {
                 extractor.getLinkHandler(),
                 extractor.getSearchString());
 
+        try {
+            info.setOriginalUrl(extractor.getOriginalUrl());
+        } catch (Exception e) {
+            info.addError(e);
+        }
         try {
             info.searchSuggestion = extractor.getSearchSuggestion();
         } catch (Exception e) {