feat: add language selector to audio player

app/src/main/java/org/schabi/newpipe/player/PlayQueueActivity.java

@@ -13,6 +13,7 @@ import android.provider.Settings;
 import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.view.SubMenu;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.SeekBar;
@@ -27,11 +28,13 @@ import com.google.android.exoplayer2.PlaybackParameters;
 
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.databinding.ActivityPlayerQueueControlBinding;
+import org.schabi.newpipe.extractor.stream.AudioStream;
 import org.schabi.newpipe.extractor.stream.StreamInfo;
 import org.schabi.newpipe.fragments.OnScrollBelowItemsListener;
 import org.schabi.newpipe.local.dialog.PlaylistDialog;
 import org.schabi.newpipe.player.event.PlayerEventListener;
 import org.schabi.newpipe.player.helper.PlaybackParameterDialog;
+import org.schabi.newpipe.player.mediaitem.MediaItemTag;
 import org.schabi.newpipe.player.playqueue.PlayQueue;
 import org.schabi.newpipe.player.playqueue.PlayQueueAdapter;
 import org.schabi.newpipe.player.playqueue.PlayQueueItem;
@@ -44,6 +47,10 @@ import org.schabi.newpipe.util.PermissionHelper;
 import org.schabi.newpipe.util.ServiceHelper;
 import org.schabi.newpipe.util.ThemeHelper;
 
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+
 public final class PlayQueueActivity extends AppCompatActivity
         implements PlayerEventListener, SeekBar.OnSeekBarChangeListener,
         View.OnClickListener, PlaybackParameterDialog.Callback {
@@ -52,6 +59,8 @@ public final class PlayQueueActivity extends AppCompatActivity
 
     private static final int SMOOTH_SCROLL_MAXIMUM_DISTANCE = 80;
 
+    private static final int MENU_ID_AUDIO_TRACK = 71;
+
     private Player player;
 
     private boolean serviceBound;
@@ -97,6 +106,7 @@ public final class PlayQueueActivity extends AppCompatActivity
         this.menu = m;
         getMenuInflater().inflate(R.menu.menu_play_queue, m);
         getMenuInflater().inflate(R.menu.menu_play_queue_bg, m);
+        buildAudioTrackMenu();
         onMaybeMuteChanged();
         // to avoid null reference
         if (player != null) {
@@ -153,6 +163,12 @@ public final class PlayQueueActivity extends AppCompatActivity
                 NavigationHelper.playOnBackgroundPlayer(this, player.getPlayQueue(), true);
                 return true;
         }
+
+        if (item.getGroupId() == MENU_ID_AUDIO_TRACK) {
+            onAudioTrackClick(item.getItemId());
+            return true;
+        }
+
         return super.onOptionsItemSelected(item);
     }
 
@@ -591,4 +607,77 @@ public final class PlayQueueActivity extends AppCompatActivity
             item.setIcon(player.isMuted() ? R.drawable.ic_volume_off : R.drawable.ic_volume_up);
         }
     }
+
+    @Override
+    public void onAudioTrackUpdate() {
+        buildAudioTrackMenu();
+    }
+
+    private void buildAudioTrackMenu() {
+        if (menu == null) {
+            return;
+        }
+
+        final MenuItem audioTrackSelector = menu.findItem(R.id.action_audio_track);
+        final List<AudioStream> availableStreams =
+                Optional.ofNullable(player.getCurrentMetadata())
+                        .flatMap(MediaItemTag::getMaybeAudioTrack)
+                        .map(MediaItemTag.AudioTrack::getAudioStreams)
+                        .orElse(null);
+
+        if (availableStreams == null || availableStreams.size() < 2) {
+            audioTrackSelector.setVisible(false);
+        } else {
+            final SubMenu audioTrackMenu = audioTrackSelector.getSubMenu();
+            audioTrackMenu.clear();
+
+            for (int i = 0; i < availableStreams.size(); i++) {
+                final AudioStream audioStream = availableStreams.get(i);
+                if (audioStream.getAudioTrackName() == null) {
+                    continue;
+                }
+
+                audioTrackMenu.add(MENU_ID_AUDIO_TRACK, i, Menu.NONE,
+                        audioStream.getAudioTrackName());
+            }
+
+            player.getSelectedAudioStream().ifPresent(s -> {
+                final String trackName = Objects.toString(s.getAudioTrackName(), "");
+                audioTrackSelector.setTitle(getString(R.string.play_queue_audio_track) + trackName);
+
+                final String shortName = s.getAudioLocale() != null
+                        ? s.getAudioLocale().getLanguage() : trackName;
+                audioTrackSelector.setTitleCondensed(
+                        shortName.substring(0, Math.min(shortName.length(), 2)));
+                audioTrackSelector.setVisible(true);
+            });
+
+        }
+    }
+
+    /**
+     * Called when an item from the audio track selector is selected.
+     *
+     * @param itemId index of the selected item
+     */
+    private void onAudioTrackClick(final int itemId) {
+        @Nullable final MediaItemTag currentMetadata = player.getCurrentMetadata();
+        if (currentMetadata == null || currentMetadata.getMaybeAudioTrack().isEmpty()) {
+            return;
+        }
+
+        final MediaItemTag.AudioTrack audioTrack =
+                currentMetadata.getMaybeAudioTrack().get();
+        final List<AudioStream> availableStreams = audioTrack.getAudioStreams();
+        final int selectedStreamIndex = audioTrack.getSelectedAudioStreamIndex();
+        if (selectedStreamIndex == itemId || availableStreams.size() <= itemId) {
+            return;
+        }
+
+        player.saveStreamProgressState();
+        final String newAudioTrack = availableStreams.get(itemId).getAudioTrackId();
+        player.setRecovery();
+        player.setAudioTrack(newAudioTrack);
+        player.reloadPlayQueueManager();
+    }
 }

app/src/main/java/org/schabi/newpipe/player/Player.java

@@ -1243,6 +1243,9 @@ public final class Player implements PlaybackListener, Listener {
             }
             final StreamInfo previousInfo = Optional.ofNullable(currentMetadata)
                     .flatMap(MediaItemTag::getMaybeStreamInfo).orElse(null);
+            final MediaItemTag.AudioTrack previousAudioTrack =
+                    Optional.ofNullable(currentMetadata)
+                    .flatMap(MediaItemTag::getMaybeAudioTrack).orElse(null);
             currentMetadata = tag;
 
             if (!currentMetadata.getErrors().isEmpty()) {
@@ -1263,6 +1266,12 @@ public final class Player implements PlaybackListener, Listener {
                 if (previousInfo == null || !previousInfo.getUrl().equals(info.getUrl())) {
                     // only update with the new stream info if it has actually changed
                     updateMetadataWith(info);
+                } else if (previousAudioTrack == null
+                        || tag.getMaybeAudioTrack()
+                                .map(t -> t.getSelectedAudioStreamIndex()
+                                        != previousAudioTrack.getSelectedAudioStreamIndex())
+                                .orElse(false)) {
+                    notifyAudioTrackUpdateToListeners();
                 }
             });
         });
@@ -1759,6 +1768,7 @@ public final class Player implements PlaybackListener, Listener {
         registerStreamViewed();
 
         notifyMetadataUpdateToListeners();
+        notifyAudioTrackUpdateToListeners();
         UIs.call(playerUi -> playerUi.onMetadataChanged(info));
     }
 
@@ -1890,8 +1900,8 @@ public final class Player implements PlaybackListener, Listener {
 
     public Optional<AudioStream> getSelectedAudioStream() {
         return Optional.ofNullable(currentMetadata)
-                .flatMap(MediaItemTag::getMaybeAudioLanguage)
+                .flatMap(MediaItemTag::getMaybeAudioTrack)
-                .map(MediaItemTag.AudioLanguage::getSelectedAudioStream);
+                .map(MediaItemTag.AudioTrack::getSelectedAudioStream);
     }
     //endregion
 
@@ -2024,6 +2034,15 @@ public final class Player implements PlaybackListener, Listener {
         }
     }
 
+    private void notifyAudioTrackUpdateToListeners() {
+        if (fragmentListener != null) {
+            fragmentListener.onAudioTrackUpdate();
+        }
+        if (activityListener != null) {
+            activityListener.onAudioTrackUpdate();
+        }
+    }
+
     public void useVideoSource(final boolean videoEnabled) {
         if (playQueue == null || isAudioOnly == !videoEnabled || audioPlayerSelected()) {
             return;
@@ -2185,8 +2204,9 @@ public final class Player implements PlaybackListener, Listener {
         videoResolver.setPlaybackQuality(quality);
     }
 
-    public void setAudioLanguage(@Nullable final String language) {
+    public void setAudioTrack(@Nullable final String audioTrackId) {
-        videoResolver.setAudioLanguage(language);
+        videoResolver.setAudioTrack(audioTrackId);
+        audioResolver.setAudioTrack(audioTrackId);
     }
 
 

app/src/main/java/org/schabi/newpipe/player/event/PlayerEventListener.java

@@ -11,5 +11,6 @@ public interface PlayerEventListener {
                           PlaybackParameters parameters);
     void onProgressUpdate(int currentProgress, int duration, int bufferPercent);
     void onMetadataUpdate(StreamInfo info, PlayQueue queue);
+    default void onAudioTrackUpdate() { }
     void onServiceStopped();
 }

app/src/main/java/org/schabi/newpipe/player/mediaitem/MediaItemTag.java

@@ -57,7 +57,7 @@ public interface MediaItemTag {
     }
 
     @NonNull
-    default Optional<AudioLanguage> getMaybeAudioLanguage() {
+    default Optional<AudioTrack> getMaybeAudioTrack() {
         return Optional.empty();
     }
 
@@ -135,20 +135,20 @@ public interface MediaItemTag {
         }
     }
 
-    final class AudioLanguage {
+    final class AudioTrack {
         @NonNull
         private final List<AudioStream> audioStreams;
         private final int selectedAudioStreamIndex;
 
-        private AudioLanguage(@NonNull final List<AudioStream> audioStreams,
+        private AudioTrack(@NonNull final List<AudioStream> audioStreams,
                            final int selectedAudioStreamIndex) {
             this.audioStreams = audioStreams;
             this.selectedAudioStreamIndex = selectedAudioStreamIndex;
         }
 
-        static AudioLanguage of(@NonNull final List<AudioStream> audioStreams,
+        static AudioTrack of(@NonNull final List<AudioStream> audioStreams,
                              final int selectedAudioStreamIndex) {
-            return new AudioLanguage(audioStreams, selectedAudioStreamIndex);
+            return new AudioTrack(audioStreams, selectedAudioStreamIndex);
         }
 
         @NonNull

app/src/main/java/org/schabi/newpipe/player/mediaitem/StreamInfoTag.java

@@ -26,17 +26,17 @@ public final class StreamInfoTag implements MediaItemTag {
     @Nullable
     private final MediaItemTag.Quality quality;
     @Nullable
-    private final MediaItemTag.AudioLanguage audioLanguage;
+    private final MediaItemTag.AudioTrack audioTrack;
     @Nullable
     private final Object extras;
 
     private StreamInfoTag(@NonNull final StreamInfo streamInfo,
                           @Nullable final MediaItemTag.Quality quality,
-                          @Nullable final MediaItemTag.AudioLanguage audioLanguage,
+                          @Nullable final MediaItemTag.AudioTrack audioTrack,
                           @Nullable final Object extras) {
         this.streamInfo = streamInfo;
         this.quality = quality;
-        this.audioLanguage = audioLanguage;
+        this.audioTrack = audioTrack;
         this.extras = extras;
     }
 
@@ -46,9 +46,17 @@ public final class StreamInfoTag implements MediaItemTag {
                                    @NonNull final List<AudioStream> audioStreams,
                                    final int selectedAudioStreamIndex) {
         final Quality quality = Quality.of(sortedVideoStreams, selectedVideoStreamIndex);
-        final AudioLanguage audioLanguage =
+        final AudioTrack audioTrack =
-                AudioLanguage.of(audioStreams, selectedAudioStreamIndex);
+                AudioTrack.of(audioStreams, selectedAudioStreamIndex);
-        return new StreamInfoTag(streamInfo, quality, audioLanguage, null);
+        return new StreamInfoTag(streamInfo, quality, audioTrack, null);
+    }
+
+    public static StreamInfoTag of(@NonNull final StreamInfo streamInfo,
+                                   @NonNull final List<AudioStream> audioStreams,
+                                   final int selectedAudioStreamIndex) {
+        final AudioTrack audioTrack =
+                AudioTrack.of(audioStreams, selectedAudioStreamIndex);
+        return new StreamInfoTag(streamInfo, null, audioTrack, null);
     }
 
     public static StreamInfoTag of(@NonNull final StreamInfo streamInfo) {
@@ -114,8 +122,8 @@ public final class StreamInfoTag implements MediaItemTag {
 
     @NonNull
     @Override
-    public Optional<AudioLanguage> getMaybeAudioLanguage() {
+    public Optional<AudioTrack> getMaybeAudioTrack() {
-        return Optional.ofNullable(audioLanguage);
+        return Optional.ofNullable(audioTrack);
     }
 
     @Override
@@ -125,6 +133,6 @@ public final class StreamInfoTag implements MediaItemTag {
 
     @Override
     public StreamInfoTag withExtras(@NonNull final Object extra) {
-        return new StreamInfoTag(streamInfo, quality, audioLanguage, extra);
+        return new StreamInfoTag(streamInfo, quality, audioTrack, extra);
     }
 }

app/src/main/java/org/schabi/newpipe/player/resolver/AudioPlaybackResolver.java

@@ -1,5 +1,6 @@
 package org.schabi.newpipe.player.resolver;
 
+import static org.schabi.newpipe.util.ListHelper.getFilteredAudioStreams;
 import static org.schabi.newpipe.util.ListHelper.getNonTorrentStreams;
 
 import android.content.Context;
@@ -28,6 +29,8 @@ public class AudioPlaybackResolver implements PlaybackResolver {
     private final Context context;
     @NonNull
     private final PlayerDataSource dataSource;
+    @Nullable
+    private String audioTrack;
 
     public AudioPlaybackResolver(@NonNull final Context context,
                                  @NonNull final PlayerDataSource dataSource) {
@@ -43,12 +46,36 @@ public class AudioPlaybackResolver implements PlaybackResolver {
             return liveSource;
         }
 
-        final Stream stream = getAudioSource(info);
+        final List<AudioStream> audioStreams =
-        if (stream == null) {
+                getFilteredAudioStreams(context, info.getAudioStreams());
+        final Stream stream;
+        final MediaItemTag tag;
+
+        if (!audioStreams.isEmpty()) {
+            int audioIndex = 0;
+
+            if (audioTrack != null) {
+                for (int i = 0; i < audioStreams.size(); i++) {
+                    final AudioStream audioStream = audioStreams.get(i);
+                    if (audioStream.getAudioTrackId() != null
+                        && audioStream.getAudioTrackId().equals(audioTrack)) {
+                        audioIndex = i;
+                        break;
+                    }
+                }
+            }
+            stream = getStreamForIndex(audioIndex, audioStreams);
+            tag = StreamInfoTag.of(info, audioStreams, audioIndex);
+        } else {
+            final List<VideoStream> videoStreams = getNonTorrentStreams(info.getVideoStreams());
+            if (!videoStreams.isEmpty()) {
+                final int index = ListHelper.getDefaultResolutionIndex(context, videoStreams);
+                stream = getStreamForIndex(index, videoStreams);
+                tag = StreamInfoTag.of(info);
+            } else {
                 return null;
             }
-
+        }
-        final MediaItemTag tag = StreamInfoTag.of(info);
 
         try {
             return PlaybackResolver.buildMediaSource(
@@ -59,29 +86,6 @@ public class AudioPlaybackResolver implements PlaybackResolver {
         }
     }
 
-    /**
-     * Get a stream to be played as audio. If a service has no separate {@link AudioStream}s we
-     * use a video stream as audio source to support audio background playback.
-     *
-     * @param info of the stream
-     * @return the audio source to use or null if none could be found
-     */
-    @Nullable
-    private Stream getAudioSource(@NonNull final StreamInfo info) {
-        final List<AudioStream> audioStreams = getNonTorrentStreams(info.getAudioStreams());
-        if (!audioStreams.isEmpty()) {
-            final int index = ListHelper.getDefaultAudioFormat(context, audioStreams);
-            return getStreamForIndex(index, audioStreams);
-        } else {
-            final List<VideoStream> videoStreams = getNonTorrentStreams(info.getVideoStreams());
-            if (!videoStreams.isEmpty()) {
-                final int index = ListHelper.getDefaultResolutionIndex(context, videoStreams);
-                return getStreamForIndex(index, videoStreams);
-            }
-        }
-        return null;
-    }
-
     @Nullable
     Stream getStreamForIndex(final int index, @NonNull final List<? extends Stream> streams) {
         if (index >= 0 && index < streams.size()) {
@@ -89,4 +93,13 @@ public class AudioPlaybackResolver implements PlaybackResolver {
         }
         return null;
     }
+
+    @Nullable
+    public String getAudioTrack() {
+        return audioTrack;
+    }
+
+    public void setAudioTrack(@Nullable final String audioLanguage) {
+        this.audioTrack = audioLanguage;
+    }
 }

app/src/main/java/org/schabi/newpipe/player/resolver/VideoPlaybackResolver.java

@@ -46,7 +46,7 @@ public class VideoPlaybackResolver implements PlaybackResolver {
     @Nullable
     private String playbackQuality;
     @Nullable
-    private String audioLanguage;
+    private String audioTrack;
 
     public enum SourceType {
         LIVE_STREAM,
@@ -91,11 +91,11 @@ public class VideoPlaybackResolver implements PlaybackResolver {
         }
 
         int audioIndex = 0;
-        if (audioLanguage != null) {
+        if (audioTrack != null) {
             for (int i = 0; i < audioStreamsList.size(); i++) {
                 final AudioStream stream = audioStreamsList.get(i);
                 if (stream.getAudioTrackId() != null
-                        && stream.getAudioTrackId().equals(audioLanguage)) {
+                        && stream.getAudioTrackId().equals(audioTrack)) {
                     audioIndex = i;
                     break;
                 }
@@ -107,8 +107,8 @@ public class VideoPlaybackResolver implements PlaybackResolver {
         @Nullable final VideoStream video = tag.getMaybeQuality()
                 .map(MediaItemTag.Quality::getSelectedVideoStream)
                 .orElse(null);
-        @Nullable final AudioStream audio = tag.getMaybeAudioLanguage()
+        @Nullable final AudioStream audio = tag.getMaybeAudioTrack()
-                .map(MediaItemTag.AudioLanguage::getSelectedAudioStream)
+                .map(MediaItemTag.AudioTrack::getSelectedAudioStream)
                 .orElse(null);
 
         if (video != null) {
@@ -124,7 +124,7 @@ public class VideoPlaybackResolver implements PlaybackResolver {
 
         // Use the audio stream if there is no video stream, or
         // merge with audio stream in case if video does not contain audio
-        if (audio != null && (video == null || video.isVideoOnly() || audioLanguage != null)) {
+        if (audio != null && (video == null || video.isVideoOnly() || audioTrack != null)) {
             try {
                 final MediaSource audioSource = PlaybackResolver.buildMediaSource(
                         dataSource, audio, info, PlaybackResolver.cacheKeyOf(info, audio), tag);
@@ -198,12 +198,12 @@ public class VideoPlaybackResolver implements PlaybackResolver {
     }
 
     @Nullable
-    public String getAudioLanguage() {
+    public String getAudioTrack() {
-        return audioLanguage;
+        return audioTrack;
     }
 
-    public void setAudioLanguage(@Nullable final String audioLanguage) {
+    public void setAudioTrack(@Nullable final String audioLanguage) {
-        this.audioLanguage = audioLanguage;
+        this.audioTrack = audioLanguage;
     }
 
     public interface QualityResolver {
@@ -211,10 +211,4 @@ public class VideoPlaybackResolver implements PlaybackResolver {
 
         int getOverrideResolutionIndex(List<VideoStream> sortedVideos, String playbackQuality);
     }
-
-    public interface AudioLanguageResolver {
-        int getDefaultLanguageIndex(List<AudioStream> audioStreams);
-
-        int getOverrideLanguageIndex(List<AudioStream> audioStreams, String audioLanguage);
-    }
 }

app/src/main/java/org/schabi/newpipe/player/ui/VideoPlayerUi.java

@@ -118,13 +118,13 @@ public abstract class VideoPlayerUi extends PlayerUi implements SeekBar.OnSeekBa
     //////////////////////////////////////////////////////////////////////////*/
 
     private static final int POPUP_MENU_ID_QUALITY = 69;
-    private static final int POPUP_MENU_ID_LANGUAGE = 70;
+    private static final int POPUP_MENU_ID_AUDIO_TRACK = 70;
     private static final int POPUP_MENU_ID_PLAYBACK_SPEED = 79;
     private static final int POPUP_MENU_ID_CAPTION = 89;
 
     protected boolean isSomePopupMenuVisible = false;
     private PopupMenu qualityPopupMenu;
-    private PopupMenu languagePopupMenu;
+    private PopupMenu audioTrackPopupMenu;
     protected PopupMenu playbackSpeedPopupMenu;
     private PopupMenu captionPopupMenu;
 
@@ -176,7 +176,7 @@ public abstract class VideoPlayerUi extends PlayerUi implements SeekBar.OnSeekBa
                 R.style.DarkPopupMenu);
 
         qualityPopupMenu = new PopupMenu(themeWrapper, binding.qualityTextView);
-        languagePopupMenu = new PopupMenu(themeWrapper, binding.languageTextView);
+        audioTrackPopupMenu = new PopupMenu(themeWrapper, binding.audioTrackTextView);
         playbackSpeedPopupMenu = new PopupMenu(context, binding.playbackSpeed);
         captionPopupMenu = new PopupMenu(themeWrapper, binding.captionTextView);
 
@@ -194,8 +194,8 @@ public abstract class VideoPlayerUi extends PlayerUi implements SeekBar.OnSeekBa
 
     protected void initListeners() {
         binding.qualityTextView.setOnClickListener(makeOnClickListener(this::onQualityClicked));
-        binding.languageTextView.setOnClickListener(
+        binding.audioTrackTextView.setOnClickListener(
-                makeOnClickListener(this::onAudioLanguageClicked));
+                makeOnClickListener(this::onAudioTracksClicked));
         binding.playbackSpeed.setOnClickListener(makeOnClickListener(this::onPlaybackSpeedClicked));
 
         binding.playbackSeekBar.setOnSeekBarChangeListener(this);
@@ -272,7 +272,7 @@ public abstract class VideoPlayerUi extends PlayerUi implements SeekBar.OnSeekBa
 
     protected void deinitListeners() {
         binding.qualityTextView.setOnClickListener(null);
-        binding.languageTextView.setOnClickListener(null);
+        binding.audioTrackTextView.setOnClickListener(null);
         binding.playbackSpeed.setOnClickListener(null);
         binding.playbackSeekBar.setOnSeekBarChangeListener(null);
         binding.captionTextView.setOnClickListener(null);
@@ -426,7 +426,7 @@ public abstract class VideoPlayerUi extends PlayerUi implements SeekBar.OnSeekBa
         binding.topControls.setPaddingRelative(controlsPad, playerTopPad, controlsPad, 0);
         binding.bottomControls.setPaddingRelative(controlsPad, 0, controlsPad, 0);
         binding.qualityTextView.setPadding(buttonsPad, buttonsPad, buttonsPad, buttonsPad);
-        binding.languageTextView.setPadding(buttonsPad, buttonsPad, buttonsPad, buttonsPad);
+        binding.audioTrackTextView.setPadding(buttonsPad, buttonsPad, buttonsPad, buttonsPad);
         binding.playbackSpeed.setPadding(buttonsPad, buttonsPad, buttonsPad, buttonsPad);
         binding.playbackSpeed.setMinimumWidth(buttonsMinWidth);
         binding.captionTextView.setPadding(buttonsPad, buttonsPad, buttonsPad, buttonsPad);
@@ -992,7 +992,7 @@ public abstract class VideoPlayerUi extends PlayerUi implements SeekBar.OnSeekBa
     private void updateStreamRelatedViews() {
         player.getCurrentStreamInfo().ifPresent(info -> {
             binding.qualityTextView.setVisibility(View.GONE);
-            binding.languageTextView.setVisibility(View.GONE);
+            binding.audioTrackTextView.setVisibility(View.GONE);
             binding.playbackSpeed.setVisibility(View.GONE);
 
             binding.playbackEndTime.setVisibility(View.GONE);
@@ -1028,7 +1028,7 @@ public abstract class VideoPlayerUi extends PlayerUi implements SeekBar.OnSeekBa
                     }
 
                     buildQualityMenu();
-                    buildLanguageMenu();
+                    buildAudioTrackMenu();
 
                     binding.qualityTextView.setVisibility(View.VISIBLE);
                     binding.surfaceView.setVisibility(View.VISIBLE);
@@ -1077,15 +1077,15 @@ public abstract class VideoPlayerUi extends PlayerUi implements SeekBar.OnSeekBa
                 .ifPresent(s -> binding.qualityTextView.setText(s.getResolution()));
     }
 
-    private void buildLanguageMenu() {
+    private void buildAudioTrackMenu() {
-        if (languagePopupMenu == null) {
+        if (audioTrackPopupMenu == null) {
             return;
         }
-        languagePopupMenu.getMenu().removeGroup(POPUP_MENU_ID_LANGUAGE);
+        audioTrackPopupMenu.getMenu().removeGroup(POPUP_MENU_ID_AUDIO_TRACK);
 
         final List<AudioStream> availableStreams = Optional.ofNullable(player.getCurrentMetadata())
-                .flatMap(MediaItemTag::getMaybeAudioLanguage)
+                .flatMap(MediaItemTag::getMaybeAudioTrack)
-                .map(MediaItemTag.AudioLanguage::getAudioStreams)
+                .map(MediaItemTag.AudioTrack::getAudioStreams)
                 .orElse(null);
         if (availableStreams == null || availableStreams.size() < 2) {
             return;
@@ -1096,15 +1096,15 @@ public abstract class VideoPlayerUi extends PlayerUi implements SeekBar.OnSeekBa
             if (audioStream.getAudioTrackName() == null) {
                 continue;
             }
-            languagePopupMenu.getMenu().add(POPUP_MENU_ID_LANGUAGE, i, Menu.NONE,
+            audioTrackPopupMenu.getMenu().add(POPUP_MENU_ID_AUDIO_TRACK, i, Menu.NONE,
                     audioStream.getAudioTrackName());
         }
 
         player.getSelectedAudioStream()
-                .ifPresent(s -> binding.languageTextView.setText(s.getAudioTrackName()));
+                .ifPresent(s -> binding.audioTrackTextView.setText(s.getAudioTrackName()));
-        binding.languageTextView.setVisibility(View.VISIBLE);
+        binding.audioTrackTextView.setVisibility(View.VISIBLE);
-        languagePopupMenu.setOnMenuItemClickListener(this);
+        audioTrackPopupMenu.setOnMenuItemClickListener(this);
-        languagePopupMenu.setOnDismissListener(this);
+        audioTrackPopupMenu.setOnDismissListener(this);
     }
 
     private void buildPlaybackSpeedMenu() {
@@ -1215,13 +1215,13 @@ public abstract class VideoPlayerUi extends PlayerUi implements SeekBar.OnSeekBa
                 .ifPresent(binding.qualityTextView::setText);
     }
 
-    private void onAudioLanguageClicked() {
+    private void onAudioTracksClicked() {
-        languagePopupMenu.show();
+        audioTrackPopupMenu.show();
         isSomePopupMenuVisible = true;
 
         player.getSelectedAudioStream()
                 .map(AudioStream::getAudioTrackName)
-                .ifPresent(binding.languageTextView::setText);
+                .ifPresent(binding.audioTrackTextView::setText);
     }
 
     /**
@@ -1238,8 +1238,8 @@ public abstract class VideoPlayerUi extends PlayerUi implements SeekBar.OnSeekBa
         if (menuItem.getGroupId() == POPUP_MENU_ID_QUALITY) {
             onQualityItemClick(menuItem);
             return true;
-        } else if (menuItem.getGroupId() == POPUP_MENU_ID_LANGUAGE) {
+        } else if (menuItem.getGroupId() == POPUP_MENU_ID_AUDIO_TRACK) {
-            onLanguageItemClick(menuItem);
+            onAudioTrackItemClick(menuItem);
             return true;
         } else if (menuItem.getGroupId() == POPUP_MENU_ID_PLAYBACK_SPEED) {
             final int speedIndex = menuItem.getItemId();
@@ -1275,28 +1275,28 @@ public abstract class VideoPlayerUi extends PlayerUi implements SeekBar.OnSeekBa
         binding.qualityTextView.setText(menuItem.getTitle());
     }
 
-    private void onLanguageItemClick(@NonNull final MenuItem menuItem) {
+    private void onAudioTrackItemClick(@NonNull final MenuItem menuItem) {
         final int menuItemIndex = menuItem.getItemId();
         @Nullable final MediaItemTag currentMetadata = player.getCurrentMetadata();
-        if (currentMetadata == null || currentMetadata.getMaybeAudioLanguage().isEmpty()) {
+        if (currentMetadata == null || currentMetadata.getMaybeAudioTrack().isEmpty()) {
             return;
         }
 
-        final MediaItemTag.AudioLanguage language =
+        final MediaItemTag.AudioTrack audioTrack =
-                currentMetadata.getMaybeAudioLanguage().get();
+                currentMetadata.getMaybeAudioTrack().get();
-        final List<AudioStream> availableStreams = language.getAudioStreams();
+        final List<AudioStream> availableStreams = audioTrack.getAudioStreams();
-        final int selectedStreamIndex = language.getSelectedAudioStreamIndex();
+        final int selectedStreamIndex = audioTrack.getSelectedAudioStreamIndex();
         if (selectedStreamIndex == menuItemIndex || availableStreams.size() <= menuItemIndex) {
             return;
         }
 
         player.saveStreamProgressState();
-        final String newLanguage = availableStreams.get(menuItemIndex).getAudioTrackId();
+        final String newAudioTrack = availableStreams.get(menuItemIndex).getAudioTrackId();
         player.setRecovery();
-        player.setAudioLanguage(newLanguage);
+        player.setAudioTrack(newAudioTrack);
         player.reloadPlayQueueManager();
 
-        binding.languageTextView.setText(menuItem.getTitle());
+        binding.audioTrackTextView.setText(menuItem.getTitle());
     }
 
     /**

app/src/main/java/org/schabi/newpipe/util/ListHelper.java

@@ -188,6 +188,14 @@ public final class ListHelper {
                 videoOnlyStreams, ascendingOrder, preferVideoOnlyStreams);
     }
 
+    /**
+     * Filter the list of audio streams and return a list with the preferred stream for
+     * each audio track. Streams are sorted with the preferred language in the first position.
+     *
+     * @param context the context to search for the track to give preference
+     * @param audioStreams the list of audio streams
+     * @return the sorted, filtered list
+     */
     public static List<AudioStream> getFilteredAudioStreams(
             @NonNull final Context context,
             @Nullable final List<AudioStream> audioStreams) {

app/src/main/res/layout/player.xml

@@ -158,7 +158,7 @@
                     </LinearLayout>
 
                     <org.schabi.newpipe.views.NewPipeTextView
-                        android:id="@+id/languageTextView"
+                        android:id="@+id/audioTrackTextView"
                         android:layout_width="wrap_content"
                         android:layout_height="35dp"
                         android:layout_marginEnd="8dp"

app/src/main/res/menu/menu_play_queue.xml

@@ -18,6 +18,14 @@
         android:visible="true"
         app:showAsAction="ifRoom" />
 
+    <item
+        android:id="@+id/action_audio_track"
+        android:tooltipText="@string/audio_track"
+        android:visible="false"
+        app:showAsAction="ifRoom">
+        <menu />
+    </item>
+
     <item
         android:id="@+id/action_mute"
         android:icon="@drawable/ic_volume_off"

app/src/main/res/values/strings.xml

@@ -413,6 +413,8 @@
     <string name="play_queue_remove">Remove</string>
     <string name="play_queue_stream_detail">Details</string>
     <string name="play_queue_audio_settings">Audio Settings</string>
+    <string name="play_queue_audio_track">Audio: </string>
+    <string name="audio_track">Audio track</string>
     <string name="hold_to_append">Hold to enqueue</string>
     <string name="show_channel_details">Show channel details</string>
     <string name="enqueue_stream">Enqueue</string>