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-rw-r--r--libAACenc/src/quantize.cpp10
1 files changed, 8 insertions, 2 deletions
diff --git a/libAACenc/src/quantize.cpp b/libAACenc/src/quantize.cpp
index a1698a8..1f7402b 100644
--- a/libAACenc/src/quantize.cpp
+++ b/libAACenc/src/quantize.cpp
@@ -127,7 +127,10 @@ static void FDKaacEnc_quantizeLines(INT gain,
accu = fMultDiv2(FDKaacEnc_mTab_3_4[tabIndex],FDKaacEnc_quantTableE[totalShift&3]);
totalShift = (16-4)-(3*(totalShift>>2));
FDK_ASSERT(totalShift >=0); /* MAX_QUANT_VIOLATION */
- accu>>=totalShift;
+ if (totalShift < 32)
+ accu>>=totalShift;
+ else
+ accu = 0;
quaSpectrum[line] = (SHORT)(-((LONG)(k + accu) >> (DFRACT_BITS-1-16)));
}
else if(accu > FL2FXCONST_DBL(0.0f))
@@ -140,7 +143,10 @@ static void FDKaacEnc_quantizeLines(INT gain,
accu = fMultDiv2(FDKaacEnc_mTab_3_4[tabIndex],FDKaacEnc_quantTableE[totalShift&3]);
totalShift = (16-4)-(3*(totalShift>>2));
FDK_ASSERT(totalShift >=0); /* MAX_QUANT_VIOLATION */
- accu>>=totalShift;
+ if (totalShift < 32)
+ accu>>=totalShift;
+ else
+ accu = 0;
quaSpectrum[line] = (SHORT)((LONG)(k + accu) >> (DFRACT_BITS-1-16));
}
else