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Searched refs:twiddle (Results 1 – 2 of 2) sorted by relevance

/system/media/audio_utils/
Dfixedfft.cpp36 static const uint32_t twiddle[MAX_FFT_SIZE / 4] = { variable
133 w = ((int32_t) twiddle[(w ^ i) - i]) ^ (i << 16); in fixed_fft()
159 y = mult(y, ((int32_t) twiddle[i << scale])); in fixed_fft_real()
/system/chre/external/kiss_fft/
Dkissfft.hh51 const cpx_type twiddle(int i) { return _twiddles[i]; } in twiddle() function
126 cpx_type t = Fout[m+k] * _traits.twiddle(k*fstride); in kf_bfly2()
137 scratch[0] = Fout[k+m] * _traits.twiddle(k*fstride); in kf_bfly4()
138 scratch[1] = Fout[k+2*m] * _traits.twiddle(k*fstride*2); in kf_bfly4()
139 scratch[2] = Fout[k+3*m] * _traits.twiddle(k*fstride*3); in kf_bfly4()