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refine level check

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This commit is contained in:
Licai Guo 2014-02-24 00:09:40 -08:00
parent 6854e06796
commit b7bee7af0a
2 changed files with 5 additions and 2 deletions
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1
codec/decoder/core/inc/error_code.h
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@ -133,6 +133,7 @@ enum {
ERR_INFO_INVALID_CBP,
ERR_INFO_DQUANT_OUT_OF_RANGE,
ERR_INFO_CAVLC_INVALID_PREFIX,
ERR_INFO_CAVLC_INVALID_LEVEL,
ERR_INFO_CAVLC_INVALID_TOTAL_COEFF_OR_TRAILING_ONES,
ERR_INFO_CAVLC_INVALID_ZERO_LEFT,
ERR_INFO_CAVLC_INVALID_RUN_BEFORE,

6
codec/decoder/core/src/parse_mb_syn_cavlc.cpp
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@ -718,8 +718,10 @@ int32_t WelsResidualBlockCavlc (SVlcTable* pVlcTable, uint8_t* pNonZeroCountCach
if ((uiTrailingOnes > 3) || (uiTotalCoeff > 16)) { /////////////////check uiTrailingOnes and uiTotalCoeff
return ERR_INFO_CAVLC_INVALID_TOTAL_COEFF_OR_TRAILING_ONES;
}
iUsedBits += CavlcGetLevelVal (iLevel, &sReadBitsCache, uiTotalCoeff, uiTrailingOnes);
if ((i = CavlcGetLevelVal (iLevel, &sReadBitsCache, uiTotalCoeff, uiTrailingOnes)) == -1) {
return ERR_INFO_CAVLC_INVALID_LEVEL;
}
iUsedBits += i;
if (uiTotalCoeff < iMaxNumCoeff) {
iUsedBits += CavlcGetTotalZeros (iZerosLeft, &sReadBitsCache, uiTotalCoeff, pVlcTable, bChromaDc);
} else {