code: private FrameHeader getFrameHeader()
      {        
          int frameType = this.getUnsigned();        
          int channel = this.getUnsignedShort();        
          long size =  this.getUnsignedInt();        
  
          FrameHeader header = new FrameHeader();
          header.frameType = frameType;
          header.size = size;
          header.channel = channel;
  
          return header;
      }
docs: //////////////////////////////////////////////////////////////////////////////