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Fix an assertion failure (avoid division by zero) when encoding a particular input

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This commit is contained in:
Martin Storsjo 2017-10-30 23:06:44 +02:00
parent cf697df5ad
commit 1e3515e03e
1 changed files with 3 additions and 0 deletions
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3
libAACenc/src/aacenc_tns.cpp
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@ -1147,6 +1147,9 @@ static INT FDKaacEnc_AutoToParcor(
workBuffer++;
}
if (input[0] == 0)
input[0] = 1;
tmp = fMult((FIXP_DBL)((LONG)TNS_PREDGAIN_SCALE<<21), fDivNorm(fAbs(autoCorr_0), fAbs(input[0]), &scale));
if ( fMultDiv2(autoCorr_0, input[0])<FL2FXCONST_DBL(0.0f) ) {
tmp = -tmp;