cmProc5.h/c : Many changes and additions to cmPhat. (still needs IFFT update to be fully implemented)
This commit is contained in:
kevin
parent
7669faceba
commit
7fd6ee2cc0
157
cmProc5.c
157
cmProc5.c
@ -343,25 +343,26 @@ cmRC_t cmGoldSigGen( cmGoldSig_t* p, unsigned chIdx, unsigned prefixN, unsigned
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//=======================================================================================================================
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cmPhat_t* cmPhatAlloc( cmCtx* ctx, cmPhat_t* p, unsigned chN, unsigned hN, float alpha, unsigned mult, unsigned flags )
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cmPhat_t* cmPhatAlloc( cmCtx* ctx, cmPhat_t* ap, unsigned chN, unsigned hN, float alpha, unsigned mult, unsigned flags )
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{
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cmPhat_t* op = cmObjAlloc(cmPhat_t,ctx,p);
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cmPhat_t* p = cmObjAlloc(cmPhat_t,ctx,ap);
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// The FFT buffer and the delay line is at least twice the size of the
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// id signal. This will guarantee that at least one complete id signal
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// is inside the buffer. In practice it means that it is possible
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// that there will be two id's in the buffer therefore if there are
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// two correlation spikes it is important that we take the second.
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p->fhN = cmNextPowerOfTwo(mult*hN);
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unsigned fhN = cmNextPowerOfTwo(mult*hN);
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// allocate the FFT object
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cmFftAllocSR(ctx,&p->fft,NULL,p->fhN,kToPolarFftFl);
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cmFftAllocSR(ctx,&p->fft,NULL,fhN,kToPolarFftFl);
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cmIFftAllocRS(ctx,&p->ifft,fhN/2 + 1 );
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if( chN != 0 )
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if( cmPhatInit(op,chN,hN,alpha,mult,flags) != cmOkRC )
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cmPhatFree(&op);
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if( cmPhatInit(p,chN,hN,alpha,mult,flags) != cmOkRC )
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cmPhatFree(&p);
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return op;
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return p;
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}
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@ -384,6 +385,7 @@ cmRC_t cmPhatFree( cmPhat_t** pp )
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cmMemFree(p->mhM);
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cmMemFree(p->wndV);
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cmObjFreeStatic(cmFftFreeSR, cmFftSR, p->fft);
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cmObjFreeStatic(cmIFftFreeRS, cmIFftRS, p->ifft);
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cmVectArrayFree(&p->ftVa);
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cmObjFree(pp);
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@ -403,6 +405,9 @@ cmRC_t cmPhatInit( cmPhat_t* p, unsigned chN, unsigned hN, float alpha, unsig
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if((cmFftInitSR(&p->fft, NULL, p->fhN, kToPolarFftFl)) != cmOkRC )
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return rc;
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if((cmFftInitRS(&p->ifft, NULL, p->fft->binCnt )) != cmOkRC )
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return rc;
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p->alpha = alpha;
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p->flags = flags;
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@ -463,18 +468,18 @@ cmRC_t cmPhatSetId( cmPhat_t* p, unsigned chIdx, const cmSample_t* hV, unsigned
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// Zero pad hV[hN] to p->fhN;
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assert( hN <= p->fhN );
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cmVOS_Zero(p->xV,p->fhN);
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cmVOS_Copy(p->xV,hV,hN);
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cmVOS_Copy(p->xV,hN,hV);
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// Apply the window function to the id signal
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if(atIsFlag(p->flags,kHannAtPhatFl) )
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cmVOS_MultVVV(p->xV,hV,wndV,hN);
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if(cmIsFlag(p->flags,kHannAtPhatFl) )
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cmVOS_MultVVV(p->xV,hN,hV,wndV);
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// take FFT of id signal. The result is in fft->complexV and fft->magV,phsV
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cmFftExecSR(p->fft, p->xV, p->fhN );
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cmFftExecSR(&p->fft, p->xV, p->fhN );
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// Store the magnitude of the id signal
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//atFftComplexAbs(p->mhM + (chIdx*p->binN), yV, p->binN);
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cmVOR_Copy(p->mhM + (chIdx*p->binN), p->fft->magV, p->binN );
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cmVOF_CopyR(p->mhM + (chIdx*p->binN), p->binN, p->fft.magV );
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// Scale the magnitude
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cmVOS_MultVS( p->mhM + (chIdx*p->binN), p->binN, p->alpha);
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@ -482,22 +487,23 @@ cmRC_t cmPhatSetId( cmPhat_t* p, unsigned chIdx, const cmSample_t* hV, unsigned
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// store the complex conjugate of the FFT result in yV[]
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//atFftComplexConj(yV,p->binN);
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for(i=0; i<p->binN; ++i)
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yV[i].i = -(p->fft->complexV[i].i);
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yV[i] = cmCconjR(p->fft.complexV[i]);
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cmMemFree(wndV);
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return kOkAtRC;
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return cmOkRC;
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}
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cmSample_t* _cmPhatReadVector( cmCtx* ctx, cmPhat_t* p, const char* fn, unsigned* vnRef )
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{
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cmVectArray_t* vap = NULL;
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cmSample_t* v = NULL;
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cmRC_t rc = cmOkRC;
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// instantiate a VectArray from a file
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if( cmVectArrayAllocFromFile(ctx, &vap, fn ) != kOkAtRC )
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if( (vap = cmVectArrayAllocFromFile(ctx, fn )) == NULL )
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{
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atErrMsg(&p->obj.err,kFileReadFailAtRC,"Id component vector file read failed '%s'.",fn);
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rc = cmCtxRtCondition(&p->obj,cmSubSysFailRC,"Id component vector file read failed '%s'.",fn);
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goto errLabel;
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}
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@ -505,14 +511,14 @@ cmSample_t* _cmPhatReadVector( cmCtx* ctx, cmPhat_t* p, const char* fn, unsigned
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*vnRef = cmVectArrayEleCount(vap);
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// allocate memory to hold the vector
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v = cmMemAlloc(&p->obj.err,cmSample_t,*vnRef);
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v = cmMemAlloc(cmSample_t,*vnRef);
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// copy the vector from the vector array object into v[]
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if( cmVectArrayGetF(vap,v,vnRef) != kOkAtRC )
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if((rc = cmVectArrayGetF(vap,v,vnRef)) != cmOkRC )
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{
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cmMemFree(v);
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v = NULL;
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atErrMsg(&p->obj.err,kFileReadFailAtRC,"Id component vector copy out failed '%s'.",fn);
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rc = cmCtxRtCondition(&p->obj,cmSubSysFailRC,"Id component vector copy out failed '%s'.",fn);
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goto errLabel;
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}
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@ -528,20 +534,20 @@ cmSample_t* _cmPhatReadVector( cmCtx* ctx, cmPhat_t* p, const char* fn, unsigned
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cmRC_t cmPhatExec( cmPhat_t* p, const cmSample_t* xV, unsigned xN )
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{
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unsigned n = atMin(xN,p->fhN-p->di);
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unsigned n = cmMin(xN,p->fhN-p->di);
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// update the delay line
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cmVOS_Copy(p->dV+p->di,xV,n);
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cmVOS_Copy(p->dV+p->di,n,xV);
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if( n < xN )
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cmVOS_Copy(p->dV,xV+n,xN-n);
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cmVOS_Copy(p->dV,xN-n,xV+n);
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p->di = atModIncr(p->di,xN,p->fhN);
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p->di = cmModIncr(p->di,xN,p->fhN);
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// p->absIdx is the absolute sample index associated with di
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p->absIdx += xN;
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return kOkAtRC;
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return cmOkRC;
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}
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@ -556,20 +562,20 @@ void cmPhatChExec(
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unsigned n1 = p->fhN - n0;
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// Linearize the delay line into xV[]
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cmVOS_Copy(p->xV, p->dV + p->di, n0 );
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cmVOS_Copy(p->xV+n0, p->dV, n1 );
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cmVOS_Copy(p->xV, n0, p->dV + p->di );
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cmVOS_Copy(p->xV+n0, n1, p->dV );
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if( atIsFlag(p->flags,kDebugAtPhatFl))
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if( cmIsFlag(p->flags,kDebugAtPhatFl))
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cmVectArrayAppendS(p->ftVa, p->xV, p->fhN );
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// apply a window function to the incoming signal
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if( atIsFlag(p->flags,kHannAtPhatFl) )
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if( cmIsFlag(p->flags,kHannAtPhatFl) )
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cmVOS_MultVV(p->xV,p->fhN,p->wndV);
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// Take the FFT of the delay line.
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// p->t0V[p->binN] = fft(p->xV)
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//atFftRealForward(p->fftH, p->xV, p->fhN, p->t0V, p->binN );
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cmFftExecSR(p->fft, p->xV, p->fhN );
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cmFftExecSR(&p->fft, p->xV, p->fhN );
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// Calc. the Cross Power Spectrum (aka cross spectral density) of the
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// input signal with the id signal.
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@ -577,7 +583,7 @@ void cmPhatChExec(
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// cross-correlation of the two signals.
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// t0V[] *= p->fhM[:,chIdx]
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//atFftComplexMult( p->t0V, p->fhM + (chIdx * p->fhN), p->binN );
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cmVOCR_MultVVV( p->t0V, p->fft->complexV, p->fhM + (chIdx * p->fhN), p->binN)
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cmVOCR_MultVVV( p->t0V, p->fft.complexV, p->fhM + (chIdx * p->fhN), p->binN);
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// Calculate the magnitude of the CPS.
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// xV[] = | t0V[] |
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@ -588,7 +594,7 @@ void cmPhatChExec(
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// id signal contains energy)
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// t0V[] *= p->mhM[:,chIdx]
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if( p->alpha > 0 )
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cmVOCR_MultR_VV( p->t0V, p->mhM + (chIdx*p->binN), p->binN);
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cmVOCR_MultVFV( p->t0V, p->mhM + (chIdx*p->binN), p->binN);
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// Divide through by the magnitude of the CPS
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// This has the effect of whitening the spectram and thereby
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@ -596,11 +602,11 @@ void cmPhatChExec(
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// while maximimizing the effect of the phase correlation.
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//
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// t0V[] /= xV[]
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cmVOCR_DivR_VV( p->t0V, p->xV, p->binN );
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cmVOCR_DivVFV( p->t0V, p->xV, p->binN );
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// Take the IFFT of the weighted CPS to recover the cross correlation.
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// xV[] = IFFT(t0V[])
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cmIFftExecRS( p->ifft, );
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//// ***** atFftRealInverse( p->fftH, p->t0V, p->xV, p->fhN );
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@ -610,7 +616,7 @@ void cmPhatChExec(
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// normalize by the length of the correlation
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cmVOS_DivVS(p->xV,p->fhN,p->fhN);
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if( atIsFlag(p->flags,kDebugAtPhatFl))
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if( cmIsFlag(p->flags,kDebugAtPhatFl))
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{
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cmVectArrayAppendS(p->ftVa, p->xV, p->fhN );
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@ -622,28 +628,28 @@ void cmPhatChExec(
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cmRC_t cmPhatWrite( cmPhat_t* p, const char* dirStr )
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{
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cmRC_t rc = kOkAtRC;
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cmRC_t rc = cmOkRC;
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if( atIsFlag(p->flags, kDebugAtPhatFl))
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if( cmIsFlag(p->flags, kDebugAtPhatFl))
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{
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char* path = NULL;
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const char* path = NULL;
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if( p->ftVa != NULL )
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if((rc = cmVectArrayWrite(p->ftVa, path = atMakePath(&p->obj.err,path,"cmPhatFT","va",dirStr,NULL) )) != kOkAtRC )
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rc = atErrMsg(&p->obj.err,rc,"PHAT debug file write failed.");
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if((rc = cmVectArrayWrite(p->ftVa, path = cmFsMakeFn(path,"cmPhatFT","va",dirStr,NULL) )) != cmOkRC )
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rc = cmCtxRtCondition(&p->obj,cmSubSysFailRC,"PHAT debug file write failed.");
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cmMemFree(path);
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cmFsFreeFn(path);
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}
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return rc;
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}
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#ifdef NOTDEF
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cmRC_t cmPhatTest1( cmCtx* ctx, const char* dirStr )
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{
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cmRC_t rc = kOkAtRC;
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atSignalArg_t sa;
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atSignal_t* s = NULL;
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cmRC_t rc = cmOkRC;
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cmGoldSigArg_t sa;
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cmGoldSig_t* s = NULL;
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cmPhat_t* p = NULL;
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char* path = NULL;
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unsigned dspFrmCnt = 256;
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@ -677,30 +683,30 @@ cmRC_t cmPhatTest1( cmCtx* ctx, const char* dirStr )
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sa.envMs = 50.0;
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// allocate the the id signals
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if( atSignalAlloc( ctx, &s, &sa ) != kOkAtRC )
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return atErrMsg(&ctx->err, kTestFailAtRC, "Signal allocate failed.");
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if( (s = cmGoldSigAlloc( ctx, NULL, &sa ) == NULL )
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return cmErrMsg(&ctx->err, cmSubSysFailRC, "Signal allocate failed.");
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// set the post signal listen delay to half the signal length
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listenDelaySmp = s->sigN/2;
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// allocate a PHAT detector
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if( cmPhatAlloc(ctx,&p,sa.chN,s->sigN, phatAlpha, phatMult, kDebugAtPhatFl ) != kOkAtRC )
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if( (p = cmPhatAlloc(ctx,NULL,sa.chN,s->sigN, phatAlpha, phatMult, kDebugAtPhatFl ) == NULL )
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{
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rc = atErrMsg(&ctx->err, kTestFailAtRC, "PHAT allocate failed.");
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rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "PHAT allocate failed.");
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goto errLabel;
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}
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// register an id signal with the PHAT detector
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if( cmPhatSetId(p, chIdx, s->ch[chIdx].mdV, s->sigN ) != kOkAtRC )
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if( cmPhatSetId(p, chIdx, s->ch[chIdx].mdV, s->sigN ) != cmOkRC )
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{
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rc = atErrMsg(&ctx->err, kTestFailAtRC, "PHAT setId failed.");
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rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "PHAT setId failed.");
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goto errLabel;
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}
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// generate an input test signal containing bsiN id signals
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if( atSignalGen(s,chIdx,p->fhN,s->sigN,bsiV,bsiN,noiseGain,&yV,&yN) != kOkAtRC )
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if( atSignalGen(s,chIdx,p->fhN,s->sigN,bsiV,bsiN,noiseGain,&yV,&yN) != cmOkRC )
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{
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rc = atErrMsg(&ctx->err,kTestFailAtRC,"Signal generation failed.");
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rc = cmErrMsg(&ctx->err,cmSubSysFailRC,"Signal generation failed.");
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goto errLabel;
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}
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@ -714,23 +720,23 @@ cmRC_t cmPhatTest1( cmCtx* ctx, const char* dirStr )
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atVOU_Zero(dsiV,bsiN);
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// allocate a vector array to record the PHAT input signals
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if( cmVectArrayAlloc(ctx,&inVA,kSampleVaFl) != kOkAtRC )
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if( cmVectArrayAlloc(ctx,&inVA,kSampleVaFl) != cmOkRC )
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{
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rc = atErrMsg(&ctx->err, kTestFailAtRC, "vectArray inVA alloc failed.");
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rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "vectArray inVA alloc failed.");
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goto errLabel;
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}
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// allocate a vector array to record the PHAT correlation output signals
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if( cmVectArrayAlloc(ctx,&outVA,kSampleVaFl) != kOkAtRC )
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if( cmVectArrayAlloc(ctx,&outVA,kSampleVaFl) != cmOkRC )
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{
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rc = atErrMsg(&ctx->err, kTestFailAtRC, "vectArray outVA alloc failed.");
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rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "vectArray outVA alloc failed.");
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goto errLabel;
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}
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// allocate a vector array to record the PHAT status
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if( cmVectArrayAlloc(ctx,&statusVA,kSampleVaFl) != kOkAtRC )
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if( cmVectArrayAlloc(ctx,&statusVA,kSampleVaFl) != cmOkRC )
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{
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rc = atErrMsg(&ctx->err, kTestFailAtRC, "vectArray statusVA alloc failed.");
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rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "vectArray statusVA alloc failed.");
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goto errLabel;
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}
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@ -775,23 +781,23 @@ cmRC_t cmPhatTest1( cmCtx* ctx, const char* dirStr )
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}
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// write inVA
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if( cmVectArrayWrite(inVA,path = atMakePath(&ctx->err,path,"phatIn","va",dirStr,NULL)) != kOkAtRC )
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if( cmVectArrayWrite(inVA,path = atMakePath(&ctx->err,path,"phatIn","va",dirStr,NULL)) != cmOkRC )
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{
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rc = atErrMsg(&ctx->err, kTestFailAtRC, "vectArray outVA write failed.");
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rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "vectArray outVA write failed.");
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goto errLabel;
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}
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// write outVA
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if( cmVectArrayWrite(outVA,path = atMakePath(&ctx->err,path,"phatOut","va",dirStr,NULL)) != kOkAtRC )
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if( cmVectArrayWrite(outVA,path = atMakePath(&ctx->err,path,"phatOut","va",dirStr,NULL)) != cmOkRC )
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{
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rc = atErrMsg(&ctx->err, kTestFailAtRC, "vectArray outVA write failed.");
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rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "vectArray outVA write failed.");
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goto errLabel;
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}
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// write statusVA
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if( cmVectArrayWrite(statusVA,path = atMakePath(&ctx->err,path,"phatStatus","va",dirStr,NULL)) != kOkAtRC )
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if( cmVectArrayWrite(statusVA,path = atMakePath(&ctx->err,path,"phatStatus","va",dirStr,NULL)) != cmOkRC )
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{
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rc = atErrMsg(&ctx->err, kTestFailAtRC, "vectArray statusVA write failed.");
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rc = cmErrMsg(&ctx->err, cmSubSysFailRC, "vectArray statusVA write failed.");
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goto errLabel;
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}
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@ -799,18 +805,18 @@ cmRC_t cmPhatTest1( cmCtx* ctx, const char* dirStr )
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cmVectArrayFree(&outVA);
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cmVectArrayFree(&inVA);
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if( cmPhatFree(&p) != kOkAtRC )
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atErrMsg(&ctx->err,kTestFailAtRC,"PHAT free failed.");
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if( cmPhatFree(&p) != cmOkRC )
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cmErrMsg(&ctx->err,cmSubSysFailRC,"PHAT free failed.");
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if( atSignalFree(&s) != kOkAtRC )
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atErrMsg(&ctx->err,kTestFailAtRC,"Signal free failed.");
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if( atSignalFree(&s) != cmOkRC )
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cmErrMsg(&ctx->err,cmSubSysFailRC,"Signal free failed.");
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return rc;
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}
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cmRC_t cmPhatTest2( cmCtx* ctx )
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{
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||||
cmRC_t rc = kOkAtRC;
|
||||
cmRC_t rc = cmOkRC;
|
||||
cmPhat_t* p = NULL;
|
||||
unsigned hN = 16;
|
||||
float alpha = 1.0;
|
||||
@ -826,24 +832,24 @@ cmRC_t cmPhatTest2( cmCtx* ctx )
|
||||
unsigned chN = sizeof(xV)/sizeof(xV[0]);
|
||||
unsigned i;
|
||||
|
||||
if(cmPhatAlloc(ctx,&p,chN,hN,alpha,mult,kNoFlagsAtPhatFl) != kOkAtRC )
|
||||
if(cmPhatAlloc(ctx,&p,chN,hN,alpha,mult,kNoFlagsAtPhatFl) != cmOkRC )
|
||||
{
|
||||
rc = atErrMsg(&ctx->err,kTestFailAtRC,"cmPhatAlloc() failed.");
|
||||
rc = cmErrMsg(&ctx->err,cmSubSysFailRC,"cmPhatAlloc() failed.");
|
||||
goto errLabel;
|
||||
}
|
||||
|
||||
for(i=0; i<chN; ++i)
|
||||
if( cmPhatSetId(p,i,hV,hN) != kOkAtRC )
|
||||
rc = atErrMsg(&ctx->err,kTestFailAtRC,"cmPhatSetId() failed.");
|
||||
if( cmPhatSetId(p,i,hV,hN) != cmOkRC )
|
||||
rc = cmErrMsg(&ctx->err,cmSubSysFailRC,"cmPhatSetId() failed.");
|
||||
|
||||
|
||||
for(i=0; i<chN; ++i)
|
||||
{
|
||||
cmPhatReset(p);
|
||||
|
||||
if( cmPhatExec(p,xV[i],hN) != kOkAtRC )
|
||||
if( cmPhatExec(p,xV[i],hN) != cmOkRC )
|
||||
{
|
||||
rc = atErrMsg(&ctx->err,kTestFailAtRC,"cmPhatExec() failed.");
|
||||
rc = cmErrMsg(&ctx->err,cmSubSysFailRC,"cmPhatExec() failed.");
|
||||
goto errLabel;
|
||||
}
|
||||
|
||||
@ -859,3 +865,4 @@ cmRC_t cmPhatTest2( cmCtx* ctx )
|
||||
|
||||
return rc;
|
||||
}
|
||||
#endif
|
||||
|
||||
@ -125,6 +125,7 @@ extern "C" {
|
||||
{
|
||||
cmObj obj;
|
||||
cmFftSR fft;
|
||||
cmIFftRS ifft;
|
||||
|
||||
float alpha;
|
||||
unsigned flags;
|
||||
@ -159,7 +160,7 @@ extern "C" {
|
||||
// id signal contains energy.
|
||||
// 'mult' * 'hN' is the correlation length (fhN)
|
||||
// 'flags' See kDebugAtPhatFl and kWndAtPhatFl.
|
||||
cmPhat_t* cmPhatAlloc( cmCtx* ctx, cmPhat_t* pp, unsigned chN, unsigned hN, float alpha, unsigned mult, unsigned flags );
|
||||
cmPhat_t* cmPhatAlloc( cmCtx* ctx, cmPhat_t* p, unsigned chN, unsigned hN, float alpha, unsigned mult, unsigned flags );
|
||||
cmRC_t cmPhatFree( cmPhat_t** pp );
|
||||
|
||||
cmRC_t cmPhatInit( cmPhat_t* p, unsigned chN, unsigned hN, float alpha, unsigned mult, unsigned flags );
|
||||
|
||||
Loading…
Reference in New Issue
Block a user