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avoid overflow

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This commit is contained in:
Karina 2016-05-24 13:25:05 +08:00
parent c96c8b05a8
commit 2ef9613e55
1 changed files with 1 additions and 1 deletions
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codec/encoder/core/src/ratectl.cpp
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@ -982,7 +982,7 @@ void RcUpdateFrameComplexity (sWelsEncCtx* pEncCtx) {
pTOverRc->iLinearCmplx = ((int64_t)pWelsSvcRc->iFrameDqBits) * iQStep;
} else {
pTOverRc->iLinearCmplx = WELS_DIV_ROUND64 ((LINEAR_MODEL_DECAY_FACTOR * (int64_t)pTOverRc->iLinearCmplx
+ (INT_MULTIPLY - LINEAR_MODEL_DECAY_FACTOR) * (int64_t) (pWelsSvcRc->iFrameDqBits * iQStep)),
+ (INT_MULTIPLY - LINEAR_MODEL_DECAY_FACTOR) *((int64_t)pWelsSvcRc->iFrameDqBits * iQStep)),
INT_MULTIPLY);
}
int32_t iAlpha = WELS_DIV_ROUND (INT_MULTIPLY, (1 + pTOverRc->iPFrameNum));