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Remove the undefined behavior waring in parse_cabac

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This commit is contained in:
Haibo Zhu 2016-05-17 09:40:03 +08:00
parent 1eb735299a
commit 86c1f0d2c6
1 changed files with 4 additions and 2 deletions
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6
codec/decoder/core/src/parse_mb_syn_cabac.cpp
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@ -934,14 +934,16 @@ int32_t ParseResidualBlockCabac (PWelsNeighAvail pNeighAvail, uint8_t* pNonZeroC
} else if (iResProperty == CHROMA_DC_U || iResProperty == CHROMA_DC_V) {
do {
if (pSignificantMap[j] != 0)
sTCoeff[pScanTable[j]] = pCtx->bUseScalingList ? (pSignificantMap[j] * pDeQuantMul[0]) >> 4 :
sTCoeff[pScanTable[j]] = pCtx->bUseScalingList ? (int16_t) ((int64_t)pSignificantMap[j] *
(int64_t)pDeQuantMul[0] >> 4) :
(pSignificantMap[j] * pDeQuantMul[0]);
++j;
} while (j < 16);
} else { //luma ac, chroma ac
do {
if (pSignificantMap[j] != 0)
sTCoeff[pScanTable[j]] = pCtx->bUseScalingList ? (pSignificantMap[j] * pDeQuantMul[pScanTable[j]] >> 4) :
sTCoeff[pScanTable[j]] = pCtx->bUseScalingList ? (int16_t) ((int64_t)pSignificantMap[j] *
(int64_t)pDeQuantMul[pScanTable[j]] >> 4) :
pSignificantMap[j] * pDeQuantMul[pScanTable[j] & 0x07];
++j;
} while (j < 16);