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[Amanda_S_Intel]

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[kunal_v_]

Hi,

I am getting a IppStsContextMatchErr(-17) when I use ippsHilbertInitAlloc_32f_32fc in the following code. I notice that there are some times when no error is reported when I run this in a loop but I get the context error on most of the iterations. Any help would be appreciated.

int EnvDtc(INT* buf1,PCM_PIPE_TDP_VOL pPipe,Engine *m_pengine)
{
   IppStatus status;
   IppsHilbertSpec_32f32fc *struc;
   status = ippsHilbertInitAlloc_32f32fc(&struc, (int)pPipe->samPerPri, ippAlgHintNone);
   Ipp32fc* dst = ippsMalloc_32fc(pPipe->samPerPri);
   Ipp32f* magDst = ippsMalloc_32f(pPipe->samPerPri);
   //Ipp32f* src = ippsMalloc_32f(pPipe->samPerPri);
   status = ippsHilbert_32f32fc((Ipp32f*)buf1,dst,struc);
   status = ippsMagnitude_32fc(dst,magDst,pPipe->samPerPri);
   status = ippsHilbertFree_32f32fc(struc);
   const int len = pPipe->samPerPri;
   double* temp = new double[len];
   for(int i=0;i<pPipe->samPerPri;i++){
   temp = (double)magDst;
   }
   mxArray* proc2 = mxCreateDoubleMatrix(pPipe->samPerPri,1,mxREAL);
   memcpy((void *)mxGetPr(proc2), temp,sizeof(double)*pPipe->samPerPri);
   engPutVariable(m_pengine, "Env",proc2);
   mxDestroyArray(proc2);
   // Free memory
   ippsFree(dst);
   ippsFree(magDst);
   free(temp);
   return 0;
}

[Igor_A_Intel]

Hi Kunal,

your code is not self-sufficient - so it is not compilable. Could you provide compilable reproducer? (it is not clear which parameters are used for Hilbert, also you don't check ippStatus after each IPP call - may be something is wrong before you applying Hilbert - may you use wrong parameters for InitAlloc and has bad status after it and -17 after Hilbert is just a result that struc has not been created...

regards, Igor