Synchronize some stuff to avoid misreading from stream

Author: devgianlu

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

@@ -175,7 +175,7 @@ private void checkAvailability(int chunk, boolean wait, boolean halted) throws I
     }
 
     @Override
-    public final int read(@NotNull byte[] b, int off, int len) throws IOException {
+    public final synchronized int read(@NotNull byte[] b, int off, int len) throws IOException {
         if (closed) throw new IOException("Stream is closed!");
 
         if (off < 0 || len < 0 || len > b.length - off) {

core/src/main/java/xyz/gianlu/librespot/player/codecs/VorbisCodec.java

@@ -145,7 +145,7 @@ private void readHeader() throws IOException, CodecException {
      * @throws IOException          if an I/O exception occurs
      */
     @Override
-    public int readInternal(@NotNull OutputStream out) throws IOException, CodecException {
+    public synchronized int readInternal(@NotNull OutputStream out) throws IOException, CodecException {
         if (closed) return -1;
 
         int written = 0;