docs: private int readBlock() {
          blockSize = read();
          int n = 0;
          if (blockSize > 0) {
              int count = 0;
              try {
                  while (n < blockSize) {
                      count = blockSize - n;
                      rawData.get(block, n, count);
  
                      n += count;
                  }
              } catch (Exception e) {
  //                if (Log.isLoggable(TAG, Log.DEBUG)) {
  //                    Log.d(TAG,
  //                            "Error Reading Block n: " + n + " count: " + count + " blockSize: " + blockSize, e);
  //                }
                  header.status = GifDecoder.STATUS_FORMAT_ERROR;
              }
          }
          return n;
      }