83 void ff_acelp_lsf2lsp(int16_t *lsp, const int16_t *lsf, int lp_order)  in ff_acelp_lsf2lsp()  argument
90         lsp[i] = ff_cos(lsf[i] * 20861 >> 15); // divide by PI and (0,13) -> (0,14)  in ff_acelp_lsf2lsp()
93 void ff_acelp_lsf2lspd(double *lsp, const float *lsf, int lp_order)  in ff_acelp_lsf2lspd()  argument
98         lsp[i] = cos(2.0 * M_PI * lsf[i]);  in ff_acelp_lsf2lspd()
106 static void lsp2poly(int* f, const int16_t* lsp, int lp_half_order)  in lsp2poly()  argument
111     f[1] = -lsp[0] * 256;     // *2 and (0.15) -> (3.22)  in lsp2poly()
117             f[j] -= MULL(f[j-1], lsp[2*i-2], FRAC_BITS) - f[j-2];  in lsp2poly()
119         f[1] -= lsp[2*i-2] * 256;  in lsp2poly()
123 void ff_acelp_lsp2lpc(int16_t* lp, const int16_t* lsp, int lp_half_order)  in ff_acelp_lsp2lpc()  argument
129     lsp2poly(f1, lsp  , lp_half_order);  in ff_acelp_lsp2lpc()
130     lsp2poly(f2, lsp+1, lp_half_order);  in ff_acelp_lsp2lpc()
145 void ff_amrwb_lsp2lpc(const double *lsp, float *lp, int lp_order)  in ff_amrwb_lsp2lpc()  argument
155     ff_lsp2polyf(lsp    , pa, lp_half_order    );  in ff_amrwb_lsp2lpc()
156     ff_lsp2polyf(lsp + 1, qa, lp_half_order - 1);  in ff_amrwb_lsp2lpc()
159         double paf =  pa[i]            * (1 + lsp[lp_order - 1]);  in ff_amrwb_lsp2lpc()
160         double qaf = (qa[i] - qa[i-2]) * (1 - lsp[lp_order - 1]);  in ff_amrwb_lsp2lpc()
165     lp[lp_half_order - 1] = (1.0 + lsp[lp_order - 1]) *  in ff_amrwb_lsp2lpc()
168     lp[lp_order - 1] = lsp[lp_order - 1];  in ff_amrwb_lsp2lpc()
191 void ff_lsp2polyf(const double *lsp, double *f, int lp_half_order)  in ff_lsp2polyf()  argument
196     f[1] = -2 * lsp[0];  in ff_lsp2polyf()
197     lsp -= 2;  in ff_lsp2polyf()
200         double val = -2 * lsp[2*i];  in ff_lsp2polyf()
209 void ff_acelp_lspd2lpc(const double *lsp, float *lpc, int lp_half_order)  in ff_acelp_lspd2lpc()  argument
216     ff_lsp2polyf(lsp,     pa, lp_half_order);  in ff_acelp_lspd2lpc()
217     ff_lsp2polyf(lsp + 1, qa, lp_half_order);  in ff_acelp_lspd2lpc()