Lines Matching defs:lag
146 static av_always_inline void autocorrelate(const int x[40][2], SoftFloat phi[3][2][2], int lag)
152 if (lag) {
154 accu_re += (uint64_t)x[i][0] * x[i+lag][0];
155 accu_re += (uint64_t)x[i][1] * x[i+lag][1];
156 accu_im += (uint64_t)x[i][0] * x[i+lag][1];
157 accu_im -= (uint64_t)x[i][1] * x[i+lag][0];
163 accu_re += (uint64_t)x[ 0][0] * x[lag][0];
164 accu_re += (uint64_t)x[ 0][1] * x[lag][1];
165 accu_im += (uint64_t)x[ 0][0] * x[lag][1];
166 accu_im -= (uint64_t)x[ 0][1] * x[lag][0];
168 phi[2-lag][1][0] = autocorr_calc(accu_re);
169 phi[2-lag][1][1] = autocorr_calc(accu_im);
171 if (lag == 1) {