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

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This reverts commit 28fdc28ec436ceafb11ceb6a354e9916c5265981.

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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7
libSBRdec/src/psdec.cpp
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@ -325,7 +325,7 @@ void initSlotBasedRotation(
int env, int usb) { int env, int usb) {
INT group = 0; INT group = 0;
INT bin = 0; INT bin = 0;
INT noIidSteps, noFactors; INT noIidSteps;
FIXP_SGL invL; FIXP_SGL invL;
FIXP_DBL ScaleL, ScaleR; FIXP_DBL ScaleL, ScaleR;
@ -337,11 +337,9 @@ void initSlotBasedRotation(
if (h_ps_d->bsData[h_ps_d->processSlot].mpeg.bFineIidQ) { if (h_ps_d->bsData[h_ps_d->processSlot].mpeg.bFineIidQ) {
PScaleFactors = ScaleFactorsFine; /* values are shiftet right by one */ PScaleFactors = ScaleFactorsFine; /* values are shiftet right by one */
noIidSteps = NO_IID_STEPS_FINE; noIidSteps = NO_IID_STEPS_FINE;
noFactors = NO_IID_LEVELS_FINE;
} else { } else {
PScaleFactors = ScaleFactors; /* values are shiftet right by one */ PScaleFactors = ScaleFactors; /* values are shiftet right by one */
noIidSteps = NO_IID_STEPS; noIidSteps = NO_IID_STEPS;
noFactors = NO_IID_LEVELS;
} }
/* dequantize and decode */ /* dequantize and decode */
@ -360,11 +358,8 @@ void initSlotBasedRotation(
/* ScaleR and ScaleL are scaled by 1 shift right */ /* 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 ScaleR = PScaleFactors[noIidSteps + h_ps_d->specificTo.mpeg.pCoef
->aaIidIndexMapped[env][bin]]; ->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 ScaleL = PScaleFactors[noIidSteps - h_ps_d->specificTo.mpeg.pCoef
->aaIidIndexMapped[env][bin]]; ->aaIidIndexMapped[env][bin]];