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Limit too large scale_change exponent used in adjustTimeSlot 

Bug: 112892953
Test: atest DecoderTestXheAac ; atest DecoderTestAacDrc
Change-Id: I4fe66defb40a36612850582cb0f1da7fb07a8bed
This commit is contained in:
Fraunhofer IIS FDK 2018-08-15 14:36:49 +02:00 committed by Jean-Michel Trivi
parent 55930c28af
commit e93cd75ea4
1 changed files with 9 additions and 7 deletions
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16
libSBRdec/src/env_calc.cpp
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@ -1561,13 +1561,14 @@ void calculateSbrEnvelope(
adjustTimeSlotHQ_GainAndNoise(
&analysBufferReal[j][lowSubband],
&analysBufferImag[j][lowSubband], h_sbr_cal_env, pNrgs,
lowSubband, noSubbands, scale_change, smooth_ratio, noNoiseFlag,
filtBufferNoiseShift);
lowSubband, noSubbands, fMin(scale_change, DFRACT_BITS - 1),
smooth_ratio, noNoiseFlag, filtBufferNoiseShift);
} else {
adjustTimeSlotHQ(&analysBufferReal[j][lowSubband],
&analysBufferImag[j][lowSubband], h_sbr_cal_env,
pNrgs, lowSubband, noSubbands, scale_change,
smooth_ratio, noNoiseFlag, filtBufferNoiseShift);
pNrgs, lowSubband, noSubbands,
fMin(scale_change, DFRACT_BITS - 1), smooth_ratio,
noNoiseFlag, filtBufferNoiseShift);
}
} else {
FDK_ASSERT(!iTES_enable); /* not supported */
@ -1575,13 +1576,14 @@ void calculateSbrEnvelope(
/* FDKmemset(analysBufferReal[j], 0, 64 * sizeof(FIXP_DBL)); */
adjustTimeSlot_EldGrid(&analysBufferReal[j][lowSubband], pNrgs,
&h_sbr_cal_env->harmIndex, lowSubband,
noSubbands, scale_change, noNoiseFlag,
&h_sbr_cal_env->phaseIndex,
noSubbands,
fMin(scale_change, DFRACT_BITS - 1),
noNoiseFlag, &h_sbr_cal_env->phaseIndex,
EXP2SCALE(adj_e) - sbrScaleFactor->lb_scale);
} else {
adjustTimeSlotLC(&analysBufferReal[j][lowSubband], pNrgs,
&h_sbr_cal_env->harmIndex, lowSubband, noSubbands,
scale_change, noNoiseFlag,
fMin(scale_change, DFRACT_BITS - 1), noNoiseFlag,
&h_sbr_cal_env->phaseIndex);
}
}