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Integer overflow fix in InvMdctTransformLowDelay_fdk() 

Bug: 112892194
Test: atest DecoderTestXheAac ; atest DecoderTestAacDrc

Change-Id: I47fdb5b51afd8c588607bf206d4ae3ef4ba1cdb3
This commit is contained in:
Fraunhofer IIS FDK 2018-08-15 14:30:40 +02:00 committed by Jean-Michel Trivi
parent b8a384b0cd
commit 24648cbd4f
1 changed files with 5 additions and 3 deletions
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8
libAACdec/src/ldfiltbank.cpp
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@ -216,6 +216,7 @@ int InvMdctTransformLowDelay_fdk(FIXP_DBL *mdctData, const int mdctData_e,
int scale = mdctData_e + MDCT_OUT_HEADROOM -
LDFB_HEADROOM; /* The LDFB_HEADROOM is compensated inside
multE2_DinvF_fdk() below */
int i;
/* Select LD window slope */
switch (N) {
@ -261,10 +262,11 @@ int InvMdctTransformLowDelay_fdk(FIXP_DBL *mdctData, const int mdctData_e,
}
if (gain != (FIXP_DBL)0) {
scaleValuesWithFactor(mdctData, gain, N, scale);
} else {
scaleValues(mdctData, N, scale);
for (i = 0; i < N; i++) {
mdctData[i] = fMult(mdctData[i], gain);
}
}
scaleValuesSaturate(mdctData, N, scale);
/* Since all exponent and factors have been applied, current exponent is zero.
*/