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Revert "Reapply: Avoid reading out of bounds due to too large aaIidIndexMapped" 

This reverts commit 28fdc28ec4.

It seems like this isn't needed any longer on the latest upstream
version.
This commit is contained in:
Martin Storsjo 2019-10-08 15:10:32 +03:00
parent 18aa41a0e7
commit 3e6e1b2097
1 changed files with 5 additions and 10 deletions
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15
libSBRdec/src/psdec.cpp
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@ -325,7 +325,7 @@ void initSlotBasedRotation(
int env, int usb) {
INT group = 0;
INT bin = 0;
INT noIidSteps, noFactors;
INT noIidSteps;
FIXP_SGL invL;
FIXP_DBL ScaleL, ScaleR;
@ -337,11 +337,9 @@ void initSlotBasedRotation(
if (h_ps_d->bsData[h_ps_d->processSlot].mpeg.bFineIidQ) {
PScaleFactors = ScaleFactorsFine; /* values are shiftet right by one */
noIidSteps = NO_IID_STEPS_FINE;
noFactors = NO_IID_LEVELS_FINE;
} else {
PScaleFactors = ScaleFactors; /* values are shiftet right by one */
noIidSteps = NO_IID_STEPS;
noFactors = NO_IID_LEVELS;
}
/* dequantize and decode */
@ -360,13 +358,10 @@ void initSlotBasedRotation(
/* ScaleR and ScaleL are scaled by 1 shift right */
ScaleL = ScaleR = 0;
if (noIidSteps + h_ps_d->specificTo.mpeg.pCoef->aaIidIndexMapped[env][bin] >= 0 && noIidSteps + h_ps_d->specificTo.mpeg.pCoef->aaIidIndexMapped[env][bin] < noFactors)
ScaleR = PScaleFactors[noIidSteps + h_ps_d->specificTo.mpeg.pCoef
->aaIidIndexMapped[env][bin]];
if (noIidSteps - h_ps_d->specificTo.mpeg.pCoef->aaIidIndexMapped[env][bin] >= 0 && noIidSteps - h_ps_d->specificTo.mpeg.pCoef->aaIidIndexMapped[env][bin] < noFactors)
ScaleL = PScaleFactors[noIidSteps - h_ps_d->specificTo.mpeg.pCoef
->aaIidIndexMapped[env][bin]];
ScaleR = PScaleFactors[noIidSteps + h_ps_d->specificTo.mpeg.pCoef
->aaIidIndexMapped[env][bin]];
ScaleL = PScaleFactors[noIidSteps - h_ps_d->specificTo.mpeg.pCoef
->aaIidIndexMapped[env][bin]];
AlphasValue = 0;
if (h_ps_d->specificTo.mpeg.pCoef->aaIccIndexMapped[env][bin] >= 0)