Initializes downsample synthesis SBR specification structure.
Case 1: Operation on float-point signal.
IppStatus ippsSynthesisDownFilterInit_SBR_CToR_32fc32f(IppsFilterSpec_SBR_C_32fc** ppFilterSpec, Ipp8u* pMemSpec, Ipp8u* pInitBuf);
IppStatus ippsSynthesisDownFilterInit_SBR_CToR_32f(IppsFilterSpec_SBR_C_32f** ppFilterSpec, Ipp8u* pMemSpec, Ipp8u* pInitBuf);
IppStatus ippsSynthesisDownFilterInit_SBR_RToR_32f(IppsFilterSpec_SBR_R_32f** ppFilterSpec, Ipp8u* pMemSpec, Ipp8u* pInitBuf);
Case 2: Operation on fixed-point signal.
IppStatus ippsSynthesisDownFilterInit_SBRHQ_32sc32s(IppsFilterSpec_SBR_C_32sc* pFilterSpec);
IppStatus ippsSynthesisDownFilterInit_SBRLP_32s(IppsFilterSpec_SBR_R_32s* pFilterSpec);
ppFilterSpec |
Double pointer to the downsample synthesis SBR specification structure. |
pMemSpec |
Pointer to the area for the downsample synthesis SBR specification structure. |
pInitBuf |
Pointer to the initialization buffer. |
These functions are declared in the ippac.h file. The functions initialize the down sample synthesis structures:
ippsSynthesisDownFilterInit_SBR_CToR_32fc32f initializes the specification structure for ippsSynthesisDownFilter_SBR_CToR_32fc32f_D2L.
ippsSynthesisDownFilterInit_SBR_CToR_32f initializes the specification structure for ippsSynthesisDownFilter_SBR_CToR_32f_D2L.
ippsSynthesisDownFilterInit_SBR_RToR_32f initializes the specification structure for ippsSynthesisDownFilter_SBR_RToR_32f_D2L.
ippsSynthesisDownFilterInit_SBRHQ_32sc32s initializes the specification structure for ippsSynthesisDownFilter_SBRHQ_32sc32s.
ippsSynthesisDownFilterInit_SBRLP_32s initializes the specification structure for ippsSynthesisDownFilter_SBRLP_32s.
AAC decoder included into IPP Samples uses the functions ippsSynthesisDownFilterInit_SBR_RToC_32f and ippsSynthesisDownFilterInit_SBR_RToR_32f in the float-point version, and functions ippsSynthesisDownFilterInit_SBRHQ_32sc32s and ippsSynthesisDownFilterInit_SBRLP_32s in the fixed-point version. See introduction to this section.
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error when at least one of the specified pointers is NULL. |
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