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avfilter/af_afftdn: reduce scaling of input samples

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It was multiplied too much.
This commit is contained in:
Paul B Mahol
2022-03-12 17:52:05 +01:00
parent 4a8b62c29a
commit 0bebff0c18
1 changed files with 3 additions and 3 deletions
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6
libavfilter/af_afftdn.c
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@@ -881,7 +881,7 @@ static void sample_noise_block(AudioFFTDeNoiseContext *s,
int edge, j, k, n, edgemax; int edge, j, k, n, edgemax;
for (int i = 0; i < s->window_length; i++) { for (int i = 0; i < s->window_length; i++) {
dnch->fft_in[i].re = s->window[i] * src[i] * (1LL << 24); dnch->fft_in[i].re = s->window[i] * src[i] * (1LL << 23);
dnch->fft_in[i].im = 0.0; dnch->fft_in[i].im = 0.0;
} }
@@ -1031,7 +1031,7 @@ static int filter_channel(AVFilterContext *ctx, void *arg, int jobnr, int nb_job
} }
for (int m = 0; m < s->window_length; m++) { for (int m = 0; m < s->window_length; m++) {
dnch->fft_in[m].re = s->window[m] * src[m] * (1LL << 24); dnch->fft_in[m].re = s->window[m] * src[m] * (1LL << 23);
dnch->fft_in[m].im = 0; dnch->fft_in[m].im = 0;
} }
@@ -1050,7 +1050,7 @@ static int filter_channel(AVFilterContext *ctx, void *arg, int jobnr, int nb_job
dnch->itx_fn(dnch->ifft, dnch->fft_in, dnch->fft_out, sizeof(float)); dnch->itx_fn(dnch->ifft, dnch->fft_in, dnch->fft_out, sizeof(float));
for (int m = 0; m < s->window_length; m++) for (int m = 0; m < s->window_length; m++)
dst[m] += s->window[m] * dnch->fft_in[m].re / (1LL << 24); dst[m] += s->window[m] * dnch->fft_in[m].re / (1LL << 23);
} }
return 0; return 0;