typedef struct SHAPE_FILTVOL_CONTEXT {  
    UINT32 timestamp : 21;
    UINT32 reserved0 : 2;
    UINT32 internalSaturate : 1;
    UINT32 mixBufPeakMag : 4;
    UINT32 peakMag : 4;
    UINT32 delay1 : 30;
    UINT32 headroom : 2;
    UINT32 delay2 : 30;
    UINT32 svfMode : 2;
    UINT32 gainTarget : 16;
    UINT32 gain : 16;
    UINT32 qRecip : 24;
    UINT32 reserved1 : 8;
    UINT32 qRecipTarget : 24;
    UINT32 reserved2 : 8;
    UINT32 fc : 24;
    UINT32 reserved3 : 8;
    UINT32 fcTarget : 24;
    UINT32 reserved4 : 8;
} SHAPE_FILTVOL_CONTEXT