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/third_party/ffmpeg/libavcodec/
H A Dsbrdsp_fixed.c150 int64_t accu_re = 0, accu_im = 0; in autocorrelate() local
156 accu_im += (uint64_t)x[i][0] * x[i+lag][1]; in autocorrelate()
157 accu_im -= (uint64_t)x[i][1] * x[i+lag][0]; in autocorrelate()
161 imag_sum = accu_im; in autocorrelate()
165 accu_im += (uint64_t)x[ 0][0] * x[lag][1]; in autocorrelate()
166 accu_im -= (uint64_t)x[ 0][1] * x[lag][0]; in autocorrelate()
169 phi[2-lag][1][1] = autocorr_calc(accu_im); in autocorrelate()
173 accu_im = imag_sum; in autocorrelate()
176 accu_im += (uint64_t)x[38][0] * x[39][1]; in autocorrelate()
177 accu_im in autocorrelate()
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