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Should avoid running log2Amp on uninitialized data

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This commit is contained in:
Jean-Marc Valin 2011-01-26 10:00:28 -05:00
parent de79c378bd
commit 4610d18305
1 changed files with 5 additions and 1 deletions
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6
libcelt/quant_bands.c
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@ -545,12 +545,16 @@ void log2Amp(const CELTMode *m, int start, int end,
const int C = CHANNELS(_C);
c=0;
do {
for (i=start;i<m->nbEBands;i++)
for (i=0;i<start;i++)
eBands[i+c*m->nbEBands] = 0;
for (;i<end;i++)
{
celt_word16 lg = oldEBands[i+c*m->nbEBands]
+ SHL16((celt_word16)eMeans[i],6);
eBands[i+c*m->nbEBands] = PSHR32(celt_exp2(SHL16(lg,11-DB_SHIFT)),4);
}
for (;i<m->nbEBands;i++)
eBands[i+c*m->nbEBands] = 0;
} while (++c < C);
}