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More Sonar bug fixes

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This commit is contained in:
f4exb
2024-07-21 14:20:48 +02:00
parent 02babd5ff8
commit 28262ca5fb
16 changed files with 85 additions and 32 deletions
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wdsp/fir.cpp
+10
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@@ -317,10 +317,15 @@ float *FIR::fir_read (int N, const char *filename, int rtype, float scale)
void FIR::analytic (int N, float* in, float* out)
{
if (N < 1) {
return;
}
int i;
double inv_N = 1.0 / (double) N;
double two_inv_N = 2.0 * inv_N;
float* x = new float[N * 2]; // (float *) malloc0 (N * sizeof (complex));
fftwf_plan pfor = fftwf_plan_dft_1d (
N,
(fftwf_complex *) in,
@@ -328,6 +333,7 @@ void FIR::analytic (int N, float* in, float* out)
FFTW_FORWARD,
FFTW_PATIENT
);
fftwf_plan prev = fftwf_plan_dft_1d (
N,
(fftwf_complex *) x,
@@ -335,20 +341,24 @@ void FIR::analytic (int N, float* in, float* out)
FFTW_BACKWARD,
FFTW_PATIENT
);
fftwf_execute (pfor);
x[0] *= inv_N;
x[1] *= inv_N;
for (i = 1; i < N / 2; i++)
{
x[2 * i + 0] *= two_inv_N;
x[2 * i + 1] *= two_inv_N;
}
x[N + 0] *= inv_N;
x[N + 1] *= inv_N;
memset (&x[N + 2], 0, (N - 2) * sizeof (float));
fftwf_execute (prev);
fftwf_destroy_plan (prev);
fftwf_destroy_plan (pfor);
delete[] x;
}