shithub: openh264

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Merge pull request #2474 from ruil2/overflow

avoid overflow

--- a/codec/encoder/core/src/ratectl.cpp

+++ b/codec/encoder/core/src/ratectl.cpp

@@ -982,7 +982,7 @@

     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));