[YouTube] Add Albums channel tab

Author: petlyh

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

@@ -445,6 +445,9 @@ private List<ListLinkHandler> getTabsForNonAgeRestrictedChannels() throws Parsin
                             case "streams":
                                 addNonVideosTab.accept(ChannelTabs.LIVESTREAMS);
                                 break;
+                            case "releases":
+                                addNonVideosTab.accept(ChannelTabs.ALBUMS);
+                                break;
                             case "playlists":
                                 addNonVideosTab.accept(ChannelTabs.PLAYLISTS);
                                 break;

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

@@ -78,6 +78,8 @@ private String getChannelTabsParameters() throws ParsingException {
                 return "EgZzaG9ydHPyBgUKA5oBAA%3D%3D";
             case ChannelTabs.LIVESTREAMS:
                 return "EgdzdHJlYW1z8gYECgJ6AA%3D%3D";
+            case ChannelTabs.ALBUMS:
+                return "EghyZWxlYXNlc_IGBQoDsgEA";
             case ChannelTabs.PLAYLISTS:
                 return "EglwbGF5bGlzdHPyBgQKAkIA";
             default:
@@ -304,7 +306,7 @@ private Optional<JsonObject> collectItem(@Nonnull final MultiInfoItemsCollector
                         richItem.getObject("reelItemRenderer"));
             } else if (richItem.has("playlistRenderer")) {
                 getCommitPlaylistConsumer(collector, channelIds,
-                        item.getObject("playlistRenderer"));
+                        richItem.getObject("playlistRenderer"));
             }
         } else if (item.has("gridVideoRenderer")) {
             getCommitVideoConsumer(collector, timeAgoParser, channelIds,

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/linkHandler/YoutubeChannelTabLinkHandlerFactory.java

@@ -29,6 +29,8 @@ public static String getUrlSuffix(@Nonnull final String tab)
                 return "/shorts";
             case ChannelTabs.LIVESTREAMS:
                 return "/streams";
+            case ChannelTabs.ALBUMS:
+                return "/releases";
             case ChannelTabs.PLAYLISTS:
                 return "/playlists";
             default:
@@ -65,6 +67,7 @@ public String[] getAvailableContentFilter() {
                 ChannelTabs.VIDEOS,
                 ChannelTabs.SHORTS,
                 ChannelTabs.LIVESTREAMS,
+                ChannelTabs.ALBUMS,
                 ChannelTabs.PLAYLISTS
         };
     }

extractor/src/test/java/org/schabi/newpipe/extractor/services/youtube/YoutubeChannelTabExtractorTest.java

@@ -112,6 +112,28 @@ static void setUp() throws IOException, ExtractionException {
         @Override public boolean expectedHasMoreItems() { return true; }
     }
 
+    static class Albums extends DefaultListExtractorTest<ChannelTabExtractor> {
+        private static YoutubeChannelTabExtractor extractor;
+
+        @BeforeAll
+        static void setUp() throws IOException, ExtractionException {
+            YoutubeTestsUtils.ensureStateless();
+            NewPipe.init(DownloaderFactory.getDownloader(RESOURCE_PATH + "albums"));
+            extractor = (YoutubeChannelTabExtractor) YouTube.getChannelTabExtractorFromId(
+                    "@Radiohead", ChannelTabs.ALBUMS);
+            extractor.fetchPage();
+        }
+
+        @Override public ChannelTabExtractor extractor() throws Exception { return extractor; }
+        @Override public StreamingService expectedService() throws Exception { return YouTube; }
+        @Override public String expectedName() throws Exception { return ChannelTabs.ALBUMS; }
+        @Override public String expectedId() throws Exception { return "UCq19-LqvG35A-30oyAiPiqA"; }
+        @Override public String expectedUrlContains() throws Exception { return "https://www.youtube.com/channel/UCq19-LqvG35A-30oyAiPiqA/releases"; }
+        @Override public String expectedOriginalUrlContains() throws Exception { return "https://www.youtube.com/@Radiohead/releases"; }
+        @Override public InfoItem.InfoType expectedInfoItemType() { return InfoItem.InfoType.PLAYLIST; }
+        @Override public boolean expectedHasMoreItems() { return true; }
+    }
+
 
     // TESTS FOR TABS OF AGE RESTRICTED CHANNELS
     // Fetching the tabs individually would use the standard tabs without fallback to