116 void CLpc_SynthesisLattice(FIXP_DBL *signal, const int signal_size,  in CLpc_SynthesisLattice()
119                            const int order, FIXP_DBL *state) {  in CLpc_SynthesisLattice()
121   FIXP_DBL *pSignal;  in CLpc_SynthesisLattice()
146     FIXP_DBL *pState = state + order - 1;  in CLpc_SynthesisLattice()
148     FIXP_DBL tmp;  in CLpc_SynthesisLattice()
168 void CLpc_SynthesisLattice(FIXP_DBL *signal, const int signal_size,  in CLpc_SynthesisLattice()
170                            const int inc, const FIXP_DBL *coeff,  in CLpc_SynthesisLattice()
171                            const int order, FIXP_DBL *state) {  in CLpc_SynthesisLattice()
173   FIXP_DBL *pSignal;  in CLpc_SynthesisLattice()
185     FIXP_DBL *pState = state + order - 1;  in CLpc_SynthesisLattice()
186     const FIXP_DBL *pCoeff = coeff + order - 1;  in CLpc_SynthesisLattice()
187     FIXP_DBL tmp, accu;  in CLpc_SynthesisLattice()
214 void CLpc_Synthesis(FIXP_DBL *signal, const int signal_size, const int signal_e,  in CLpc_Synthesis()
216                     const int lpcCoeff_e, const int order, FIXP_DBL *state,  in CLpc_Synthesis()
219   FIXP_DBL *pSignal;  in CLpc_Synthesis()
237     FIXP_DBL x;  in CLpc_Synthesis()
257 void CLpc_Synthesis(FIXP_DBL *signal, const int signal_size, const int signal_e,  in CLpc_Synthesis()
259                     const int lpcCoeff_e, const int order, FIXP_DBL *state,  in CLpc_Synthesis()
262   FIXP_DBL *pSignal;  in CLpc_Synthesis()
280     FIXP_DBL x;  in CLpc_Synthesis()
301 void CLpc_Analysis(FIXP_DBL *RESTRICT signal, const int signal_size,  in CLpc_Analysis()
303                    const int order, FIXP_DBL *RESTRICT filtState,  in CLpc_Analysis()
307   FIXP_DBL tmp;  in CLpc_Analysis()
356                      INT numOfCoeff, FIXP_DBL workBuffer[]) {  in CLpc_ParcorToLpc()
360   FIXP_DBL maxVal = (FIXP_DBL)0;  in CLpc_ParcorToLpc()
365       FIXP_DBL tmp1, tmp2;  in CLpc_ParcorToLpc()
394                      INT numOfCoeff, FIXP_DBL workBuffer[]) {  in CLpc_ParcorToLpc()
398   FIXP_DBL maxVal = (FIXP_DBL)0;  in CLpc_ParcorToLpc()
403       FIXP_DBL tmp1, tmp2;  in CLpc_ParcorToLpc()
431 void CLpc_AutoToParcor(FIXP_DBL acorr[], const int acorr_e,  in CLpc_AutoToParcor()
433                        FIXP_DBL *pPredictionGain_m, INT *pPredictionGain_e) {  in CLpc_AutoToParcor()
435   FIXP_DBL parcorWorkBuffer[LPC_MAX_ORDER];  in CLpc_AutoToParcor()
437   FIXP_DBL *workBuffer = parcorWorkBuffer;  in CLpc_AutoToParcor()
438   FIXP_DBL autoCorr_0 = acorr[0];  in CLpc_AutoToParcor()
450   FDKmemcpy(workBuffer, acorr + 1, numOfCoeff * sizeof(FIXP_DBL));  in CLpc_AutoToParcor()
453     FIXP_DBL tmp = (FIXP_DBL)((LONG)workBuffer[0] ^ sign);  in CLpc_AutoToParcor()
461     tmp = (FIXP_DBL)((LONG)schur_div(tmp, acorr[0], FRACT_BITS) ^ (~sign));  in CLpc_AutoToParcor()
466       FIXP_DBL accu1 = fMult(tmp, acorr[j]);  in CLpc_AutoToParcor()
467       FIXP_DBL accu2 = fMult(tmp, workBuffer[j]);  in CLpc_AutoToParcor()
472     if (acorr[0] == (FIXP_DBL)0) break;  in CLpc_AutoToParcor()
478     if (acorr[0] > (FIXP_DBL)0) {  in CLpc_AutoToParcor()
483       *pPredictionGain_m = (FIXP_DBL)0;  in CLpc_AutoToParcor()