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avfilter/af_aiir: fix first denominator calculation

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This commit is contained in:
Paul B Mahol 2020-05-22 14:12:06 +02:00
parent 07a9e5ec5e
commit 8c825e43f8
1 changed files with 2 additions and 1 deletions
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3
libavfilter/af_aiir.c
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@ -1038,8 +1038,9 @@ static int config_output(AVFilterLink *outlink)
iir->ab[0][i] /= iir->ab[0][0];
}
iir->ab[0][0] = 1.0;
for (i = 0; i < iir->nb_ab[1]; i++) {
iir->ab[1][i] *= iir->g / iir->ab[0][0];
iir->ab[1][i] *= iir->g;
}
normalize_coeffs(ctx, ch);