\usetikzlibrary{calc,trees,positioning,arrows,chains,shapes.geometric,%
decorations.pathreplacing,decorations.pathmorphing,shapes,%
matrix,shapes.symbols,plotmarks,decorations.markings,shadows,backgrounds}


\pgfdeclarelayer{background}
\pgfdeclarelayer{foreground}
\pgfdeclarelayer{L0}
\pgfdeclarelayer{L1}
\pgfdeclarelayer{L2}
\pgfdeclarelayer{L3}
\pgfsetlayers{background,L0,L1,L2,L3,main,foreground}

\newcommand{\scale}{1}

\begin{tikzpicture}[yscale=0.5, scale=\scale,every node/.style={scale=\scale},on grid ]
	
\definecolor{LCUFill}{rgb}{0,0.5,1}
\definecolor{DrawColor}{rgb}{0,0,0.5}
\definecolor{LCUFill}{rgb}{1,1,1}
\definecolor{DrawColor}{rgb}{0,0,0}

\tikzstyle{TextStyle}=[scale=.5, text centered]
\tikzstyle{Square}=[draw=DrawColor,thick]
\tikzstyle{Connection}=[Square,dashed]
\tikzstyle{Byte}=[draw=DrawColor,thick, dashed]

\begin{scope}[xshift=0, yshift=-5cm]

  \begin{scope}[xshift=0, yshift=0cm]
    \node[TextStyle] at (1,.5) {Slice header};		
    \draw[Square] (0,0) rectangle ++(2,1cm); 
    \draw[Square] (2,0) rectangle ++(7,1cm); 

	\node[TextStyle] at  (2+.25,0.5) {...};
    \foreach \x in {0,...,2}
    {
    \draw[Square,thin] (2.5+2*\x,0) rectangle ++(2,1cm); 
    \node[TextStyle] at (2.5+2*\x+1,.5) {CTU$_{n+\x}$};
    }
	\node[TextStyle] at  (2.5+2*3+.25,.1+0.8/2) {...};

    \coordinate (EdgeL) at (2+.5,0);
    \coordinate (EdgeR) at (2+.5+2,0);
  \end{scope}

  \begin{scope}[xshift=.25*1cm, yshift=-2.5*1cm, scale=1]
    \draw[Connection]  (EdgeL) -- (0,1);
    \draw[Connection]  (EdgeR) -- (8,1);    

    \draw[Square] (0,0) rectangle ++(8,1cm); 
    \draw[Square] (0,0) rectangle ++(2,1cm); 
%     \draw[Square] (1.5,0) rectangle ++(2.5,1cm); 

% 	\node[TextStyle] at  (.75,.5) {CTU Position};
	\node[TextStyle] at  (2/2,.5) {SAO (optional)};
	\node[TextStyle] at  (6/2+2,.5) {Coding quatree (CT)};

    \coordinate (EdgeL) at (2,0);
    \coordinate (EdgeR) at (8,0);
  \end{scope}

  \begin{scope}[xshift=.25*2cm, yshift=-2.5*2cm, scale=1]
	\coordinate (BraceT) at (.35,1.2);

    \draw[Connection]  (EdgeL) -- (0,1);
    \draw[Connection]  (EdgeR) -- (8,1);    

    \draw[Square] (0,0) rectangle ++(8,1cm); 

    \draw[Square] (0,0) rectangle ++(1.5,1cm);  
	\node[TextStyle,scale=.95] at  (1.5/2,.5) {split\_cu\_flag==1};

    \draw[Square] (1.5,0) rectangle ++(8/4-1.5/4,1cm);  
    \draw[Square] (1.5+8/4-1.5/4,0) rectangle ++(8/4-1.5/4,1cm);    
    \draw[Square] (1.5+2*8/4-2*1.5/4,0) rectangle ++(8/4-1.5/4,1cm);  

    \node[TextStyle] at  (1.5+8/8-1.5/8,.5) {Coding quatree};
	\node[TextStyle] at  (1.5+8/4-1.5/4+8/8-1.5/8,.5) {Coding quatree};
	\node[TextStyle] at  (1.5+2*8/4-2*1.5/4+8/8-1.5/8,.5) {Coding quatree};
	\node[TextStyle] at  (1.5+3*8/4-3*1.5/4+8/8-1.5/8,.5) {Coding quatree};

  \end{scope}

  \begin{scope}[xshift=.25*2cm, yshift=-2.5*2.7cm, scale=1]
	 \coordinate (BraceB) at (.35,-.2);

    \draw[Square] (0,0) rectangle ++(8,1cm); 

    \draw[Square] (0,0) rectangle ++(1.5,1cm);  
	\node[TextStyle,scale=.95] at  (1.5/2,.5) {split\_cu\_flag==0};

	\node[TextStyle] at  (1.5+8/2-1.5/2,.5) {Coding unit};

    \coordinate (EdgeL) at (1.5,0);
    \coordinate (EdgeR) at (8,0);
  \end{scope}

  \draw [thick, decoration={brace, mirror, raise=0.5cm }, decorate] (BraceT) -- (BraceB) ;
\end{scope}
  
\begin{scope}[xshift=.8cm, yshift=-14cm]

  \begin{scope}[xshift=.5*0cm, yshift=-2.5*0, scale=1]

    \draw[Connection]  (EdgeL) -- (0,1);
    \draw[Connection]  (EdgeR) -- (8,1);  

	 \coordinate (BraceB) at (.35,-.2);

    \draw[Square] (0,0) rectangle ++(8,1cm); 
	\node[TextStyle] at  (.25,.5) {...};

    \draw[Square] (0.5,0) rectangle ++(1.8,1cm);  
	\node[TextStyle] at  (1.8/2+0.5,.5) {Prediction unit$_{1}$};
	\node[TextStyle] at  (.5+1.8+.3,.5) {...};
    \draw[Square] (0.5+1.8+0.6,0) rectangle ++(1.8,1cm);  
	\node[TextStyle] at  (1.8/2+0.5+1.8+0.6,.5) {Prediction unit$_{n}$};

    \node[TextStyle] at  (.5+1.8*2+.3*3,.5) {...};
    \draw[Square] (0.5+1.8*2+0.6*2,0) rectangle ++(8-0.5-1.8*2-0.6*2,1cm);  
	\node[TextStyle] at  (1.8/2+0.5+1.8+0.6+2.8,.5) {Transform tree};

  \end{scope}

\end{scope}


\end{tikzpicture}