Graphviz子圖看起來像記錄形狀的節點

我想爲許多嵌套箱的GStreamer應用程序生成圖。每個容器都有一些元素，但父容器的容器看起來像任何其他具有容器（接收器和源）的公共元素。我想要可視化它，但在Graphviz中我不能生成嵌套節點，所以我必須通過子圖來完成。不幸的是，子圖沒有像記錄形狀這樣的節點選項。在我的圖中，每個節點都有記錄形狀，但是子圖不能。例如：Graphviz子圖看起來像記錄形狀的節點

digraph G 
{ 
    graph [rankdir = TD] 
    node [shape = record] 

    subgraph cluster_player 
    { 
     label = "player"   

     subgraph cluster_bin1 
     { 
      label = "bin1" 

      bin1_sink1 [label = "sink1"] 
      bin1_sink2 [label = "sink2"] 
      obj1 [ 
       label = "{ { <sink1> sink1 | <sink2> sink2 } | obj1 | { <src1> src1 | <src2> src2 } }" 
      ]   
      bin1_src1 [label = "src1"] 
      bin1_src2 [label = "src2"] 

      bin1_sink1:s -> obj1:sink1:n [] 
      bin1_sink2:s -> obj1:sink2:n [] 
      obj1:src1:s -> bin1_src1:n [] 
      obj1:src2:s -> bin1_src2:n [] 
     } 

     bin1_src1:s -> bin2_sink1:n [] 
     bin1_src2:s -> bin2_sink2:n [] 

     subgraph cluster_bin2 
     { 
      label = "bin2" 

      bin2_sink1 [label = "sink1"] 
      bin2_sink2 [label = "sink2"]    
      bin2_obj1 [ 
       label = "{ { <sink1> sink1 | <sink2> sink2 } | obj1 | { <src1> src1 } }" 
      ]  
      bin2_obj2 [ 
       label = "{ { <sink1> sink1 } | obj2 | { <src1> src1 } }" 
      ]  
      bin2_src1 [label = "src1"] 

      bin2_sink1:s -> bin2_obj1:sink1:n [] 
      bin2_sink2:s -> bin2_obj1:sink2:n [] 
      bin2_obj1:src1:s -> bin2_obj2:sink1:n [] 
      bin2_obj2:src1:s -> bin2_src1:n [] 
     } 
    } 
}

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