Fixed #239

Author: devgianlu

core/src/main/java/xyz/gianlu/librespot/dealer/ApiClient.java

@@ -101,8 +101,10 @@ public Response send(@NotNull String method, @NotNull String suffix, @Nullable H
     public void putConnectState(@NotNull String connectionId, @NotNull Connect.PutStateRequest proto) throws IOException, MercuryClient.MercuryException {
         try (Response resp = send("PUT", "/connect-state/v1/devices/" + session.deviceId(), new Headers.Builder()
                 .add("X-Spotify-Connection-Id", connectionId).build(), protoBody(proto), 5 /* We want this to succeed */)) {
-            if (resp.code() != 200)
-                LOGGER.warn("PUT {} returned {}. {headers: {}}", resp.request().url(), resp.code(), resp.headers());
+            if (resp.code() == 413)
+                LOGGER.warn("PUT state payload is too large: {} bytes uncompressed.", proto.getSerializedSize());
+            else if (resp.code() != 200)
+                LOGGER.warn("PUT state returned {}. {headers: {}}", resp.code(), resp.headers());
         }
     }
 

core/src/main/java/xyz/gianlu/librespot/player/StateWrapper.java

@@ -858,6 +858,8 @@ private static class PlayableIdWithIndex {
     }
 
     private class TracksKeeper {
+        private static final int MAX_PREV_TRACKS = 16;
+        private static final int MAX_NEXT_TRACKS = 48;
         private final LinkedList<ContextTrack> queue = new LinkedList<>();
         private final List<ContextTrack> tracks = new ArrayList<>();
         private final FisherYatesShuffle<ContextTrack> shuffle = new FisherYatesShuffle<>(session.random());
@@ -917,14 +919,14 @@ private void updatePrevNextTracks() {
             int index = getCurrentTrackIndex();
 
             state.clearPrevTracks();
-            for (int i = 0; i < index; i++)
+            for (int i = Math.max(0, index - MAX_PREV_TRACKS); i < index; i++)
                 state.addPrevTracks(ProtoUtils.convertToProvidedTrack(tracks.get(i)));
 
             state.clearNextTracks();
             for (ContextTrack track : queue)
                 state.addNextTracks(ProtoUtils.convertToProvidedTrack(track));
 
-            for (int i = index + 1; i < tracks.size(); i++)
+            for (int i = index + 1; i < Math.min(tracks.size(), index + 1 + MAX_NEXT_TRACKS); i++)
                 state.addNextTracks(ProtoUtils.convertToProvidedTrack(tracks.get(i)));
         }