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refactor code to eliminate potential div by 0

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This commit is contained in:
lyao2 2014-07-03 15:01:48 +08:00
parent ba7dca89d5
commit 21deaddc48
1 changed files with 1 additions and 2 deletions
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codec/encoder/core/src/ratectl.cpp
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@ -694,12 +694,11 @@ void RcVBufferCalculationSkip (sWelsEncCtx* pEncCtx) {
//condition 1: whole pBuffer fullness
pWelsSvcRc->iBufferFullnessSkip += (pWelsSvcRc->iFrameDqBits - kiOutputBits);
//condition 2: VGOP bits constraint
const int32_t kiVGopBits = WELS_DIV_ROUND (pWelsSvcRc->iBitsPerFrame * VGOP_SIZE, INT_MULTIPLY);
int32_t iVGopBitsPred = 0;
for (int32_t i = pWelsSvcRc->iFrameCodedInVGop + 1; i < VGOP_SIZE; i++)
iVGopBitsPred += pTOverRc[pWelsSvcRc->iTlOfFrames[i]].iMinBitsTl;
iVGopBitsPred -= pWelsSvcRc->iRemainingBits;
double dIncPercent = iVGopBitsPred * 100.0 / kiVGopBits - (double)VGOP_BITS_PERCENTAGE_DIFF;
double dIncPercent = iVGopBitsPred * 100.0 * INT_MULTIPLY / (pWelsSvcRc->iBitsPerFrame * VGOP_SIZE) - (double)VGOP_BITS_PERCENTAGE_DIFF;
if ((pWelsSvcRc->iBufferFullnessSkip > pWelsSvcRc->iBufferSizeSkip
&& pWelsSvcRc->iAverageFrameQp > pWelsSvcRc->iSkipQpValue)