enum SHAPE_FLOWGRAPH_COMMAND_TYPE    
{  
    SHAPE_FLOWGRAPH_COMMAND_TYPE_ALLOCMIXBUFFER = 0x01,  
    SHAPE_FLOWGRAPH_COMMAND_TYPE_SRC = 0x02,  
    SHAPE_FLOWGRAPH_COMMAND_TYPE_EQCOMP = 0x04,  
    SHAPE_FLOWGRAPH_COMMAND_TYPE_FILTVOL = 0x08,  
    SHAPE_FLOWGRAPH_COMMAND_TYPE_DMA = 0x10  
}