Searched refs:twiddle (Results 1 - 2 of 2) sorted by path

/system/chre/external/kiss_fft/
H A Dkissfft.hh51 const cpx_type twiddle(int i) { return _twiddles[i]; } function in struct:kissfft_utils::traits
126 cpx_type t = Fout[m+k] * _traits.twiddle(k*fstride);
137 scratch[0] = Fout[k+m] * _traits.twiddle(k*fstride);
138 scratch[1] = Fout[k+2*m] * _traits.twiddle(k*fstride*2);
139 scratch[2] = Fout[k+3*m] * _traits.twiddle(k*fstride*3);
/system/media/audio_utils/
H A Dfixedfft.cpp23 * half of the twiddle factors are stored. Although there are still ways to make
36 // Be sure to cast all accesses before use, for example "(int32_t) twiddle[...]".
37 static const uint32_t twiddle[MAX_FFT_SIZE / 4] = { variable
134 w = ((int32_t) twiddle[(w ^ i) - i]) ^ (i << 16);
159 y = mult(y, ((int32_t) twiddle[i << scale]));

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