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Avoid unintentional sign conversions in lppTransposer() and lppTransposerHBE(). am: 48e0fa028d am: ff4ace52fa 

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/aac/+/14373124

Change-Id: I43642d53262d80203945bd0523709de6c9150c65
This commit is contained in:
Fraunhofer IIS FDK 2021-05-07 15:23:32 +00:00 committed by Automerger Merge Worker
parent 4d84420532 ff4ace52fa
commit f3a2bc6ab5
1 changed files with 10 additions and 10 deletions
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20
libSBRdec/src/lpp_tran.cpp
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@ -1,7 +1,7 @@
/* -----------------------------------------------------------------------------
Software License for The Fraunhofer FDK AAC Codec Library for Android
© Copyright 1995 - 2020 Fraunhofer-Gesellschaft zur Förderung der angewandten
© Copyright 1995 - 2021 Fraunhofer-Gesellschaft zur Förderung der angewandten
Forschung e.V. All rights reserved.
1. INTRODUCTION
@ -527,7 +527,7 @@ void lppTransposer(
if ((scale > 0) && (result >= (FIXP_DBL)MAXVAL_DBL >> scale)) {
resetLPCCoeffs = 1;
} else {
alphar[1] = FX_DBL2FX_SGL(scaleValue(result, scale));
alphar[1] = FX_DBL2FX_SGL(scaleValueSaturate(result, scale));
if ((tmp < FL2FX_DBL(0.0f)) ^ (ac.det < FL2FX_DBL(0.0f))) {
alphar[1] = -alphar[1];
}
@ -555,7 +555,7 @@ void lppTransposer(
scale)) {
resetLPCCoeffs = 1;
} else {
alphai[1] = FX_DBL2FX_SGL(scaleValue(result, scale));
alphai[1] = FX_DBL2FX_SGL(scaleValueSaturate(result, scale));
if ((tmp < FL2FX_DBL(0.0f)) ^ (ac.det < FL2FX_DBL(0.0f))) {
alphai[1] = -alphai[1];
}
@ -594,7 +594,7 @@ void lppTransposer(
} else {
INT scale;
FIXP_DBL result = fDivNorm(absTmp, fixp_abs(ac.r11r), &scale);
alphar[0] = FX_DBL2FX_SGL(scaleValue(result, scale + 1));
alphar[0] = FX_DBL2FX_SGL(scaleValueSaturate(result, scale + 1));
if ((tmp > FL2FX_DBL(0.0f)) ^ (ac.r11r < FL2FX_DBL(0.0f)))
alphar[0] = -alphar[0];
@ -614,7 +614,7 @@ void lppTransposer(
} else {
INT scale;
FIXP_DBL result = fDivNorm(absTmp, fixp_abs(ac.r11r), &scale);
alphai[0] = FX_DBL2FX_SGL(scaleValue(result, scale + 1));
alphai[0] = FX_DBL2FX_SGL(scaleValueSaturate(result, scale + 1));
if ((tmp > FL2FX_DBL(0.0f)) ^ (ac.r11r < FL2FX_DBL(0.0f)))
alphai[0] = -alphai[0];
}
@ -657,7 +657,7 @@ void lppTransposer(
INT scale;
FIXP_DBL result =
fDivNorm(fixp_abs(ac.r01r), fixp_abs(ac.r11r), &scale);
k1 = scaleValue(result, scale);
k1 = scaleValueSaturate(result, scale);
if (!((ac.r01r < FL2FX_DBL(0.0f)) ^ (ac.r11r < FL2FX_DBL(0.0f)))) {
k1 = -k1;
@ -1062,7 +1062,7 @@ void lppTransposerHBE(
if ((scale > 0) && (result >= (FIXP_DBL)MAXVAL_DBL >> scale)) {
resetLPCCoeffs = 1;
} else {
alphar[1] = FX_DBL2FX_SGL(scaleValue(result, scale));
alphar[1] = FX_DBL2FX_SGL(scaleValueSaturate(result, scale));
if ((tmp < FL2FX_DBL(0.0f)) ^ (ac.det < FL2FX_DBL(0.0f))) {
alphar[1] = -alphar[1];
}
@ -1088,7 +1088,7 @@ void lppTransposerHBE(
(result >= /*FL2FXCONST_DBL(1.f)*/ (FIXP_DBL)MAXVAL_DBL >> scale)) {
resetLPCCoeffs = 1;
} else {
alphai[1] = FX_DBL2FX_SGL(scaleValue(result, scale));
alphai[1] = FX_DBL2FX_SGL(scaleValueSaturate(result, scale));
if ((tmp < FL2FX_DBL(0.0f)) ^ (ac.det < FL2FX_DBL(0.0f))) {
alphai[1] = -alphai[1];
}
@ -1117,7 +1117,7 @@ void lppTransposerHBE(
} else {
INT scale;
FIXP_DBL result = fDivNorm(absTmp, fixp_abs(ac.r11r), &scale);
alphar[0] = FX_DBL2FX_SGL(scaleValue(result, scale + 1));
alphar[0] = FX_DBL2FX_SGL(scaleValueSaturate(result, scale + 1));
if ((tmp > FL2FX_DBL(0.0f)) ^ (ac.r11r < FL2FX_DBL(0.0f)))
alphar[0] = -alphar[0];
@ -1136,7 +1136,7 @@ void lppTransposerHBE(
} else {
INT scale;
FIXP_DBL result = fDivNorm(absTmp, fixp_abs(ac.r11r), &scale);
alphai[0] = FX_DBL2FX_SGL(scaleValue(result, scale + 1));
alphai[0] = FX_DBL2FX_SGL(scaleValueSaturate(result, scale + 1));
if ((tmp > FL2FX_DBL(0.0f)) ^ (ac.r11r < FL2FX_DBL(0.0f))) {
alphai[0] = -alphai[0];
}