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/liblc3-latest/src/
Dmdct.c39 static const float cos2 = -0.8090169944; /* cos(-2Pi 2/5) */ in fft_5() local
61 + s23.re * cos2 - d23.im * sin2; in fft_5()
64 + s23.im * cos2 + d23.re * sin2; in fft_5()
66 y[2].re = x[0].re + s14.re * cos2 - d14.im * sin2 in fft_5()
69 y[2].im = x[0].im + s14.im * cos2 + d14.re * sin2 in fft_5()
72 y[3].re = x[0].re + s14.re * cos2 + d14.im * sin2 in fft_5()
75 y[3].im = x[0].im + s14.im * cos2 - d14.re * sin2 in fft_5()
79 + s23.re * cos2 + d23.im * sin2; in fft_5()
82 + s23.im * cos2 - d23.re * sin2; in fft_5()
Dmdct_neon.h45 float32x2_t cos2 = vcreate_f32(__cos2.u64); in neon_fft_5() local
50 float32x4_t cos2q = vcombine_f32(cos2, cos2); in neon_fft_5()