Developer Reference

  • 2020
  • 10/21/2020
  • Public Content
Contents

IIRGetDlyLine

Retrieves the delay line contents from the IIR filter state.

Syntax

IppStatus ippsIIRGetDlyLine32f_16s(const IppsIIRState32f_16s*
pState
, Ipp32f*
pDlyLine
);
IppStatus ippsIIRGetDlyLine64f_16s(const IppsIIRState64f_16s*
pState
, Ipp64f*
pDlyLine
);
IppStatus ippsIIRGetDlyLine64f_32s(const IppsIIRState64f_32s*
pState
, Ipp64f*
pDlyLine
);
IppStatus ippsIIRGetDlyLine32fc_16sc(const IppsIIRState32fc_16sc*
pState
, Ipp32fc*
pDlyLine
);
IppStatus ippsIIRGetDlyLine64fc_16sc(const IppsIIRState64fc_16sc*
pState
, Ipp64fc*
pDlyLine
);
IppStatus ippsIIRGetDlyLine64fc_32sc(const IppsIIRState64fc_32sc*
pState
, Ipp64fc*
pDlyLine
);
IppStatus ippsIIRGetDlyLine_32f(const IppsIIRState_32f*
pState
, Ipp32f*
pDlyLine
);
IppStatus ippsIIRGetDlyLine64f_32f(const IppsIIRState64f_32f*
pState
, Ipp64f*
pDlyLine
);
IppStatus ippsIIRGetDlyLine_64f(const IppsIIRState_64f*
pState
, Ipp64f*
pDlyLine
);
IppStatus ippsIIRGetDlyLine_32fc(const IppsIIRState_32fc*
pState
, Ipp32fc*
pDlyLine
);
IppStatus ippsIIRGetDlyLine64fc_32fc(const IppsIIRState64fc_32fc*
pState
, Ipp64fc*
pDlyLine
);
IppStatus ippsIIRGetDlyLine_64fc(const IppsIIRState_64fc*
pState
, Ipp64fc*
pDlyLine
);
IppStatus ippsIIRGetDlyLine64f_DF1_32s(const IppsIIRState64f_32s*
pState
, Ipp32s*
pDlyLine
);
Include Files
ipps.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
Libraries:
ippcore.lib
,
ippvm.lib
Parameters
pState
Pointer to the IIR filter state structure.
pDlyLine
Pointer to the array containing the delay line values. The number of elements in the array is
order
for arbitrary filters and 2*
numBq
for BQ filters.
Description
This function copies the delay line values from the corresponding state structure
pState
and stores them into the
pDlyLine
array. If the pointer is
NULL
, then the delay line values in the state structure are initialized to zero.
The corresponding filter state must be initialized beforehand by one of the initialization functions.
Return Values
ippStsNoErr
Indicates no error.
ippStsNullPtrErr
Indicates an error when the
pState
pointer is
NULL
.
ippStsContextMatchErr
Indicates an error when the state identifier is incorrect.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804