diff --git a/codec/encoder/core/src/encoder_ext.cpp b/codec/encoder/core/src/encoder_ext.cpp
index 7a68919d..fcd78d79 100644
--- a/codec/encoder/core/src/encoder_ext.cpp
+++ b/codec/encoder/core/src/encoder_ext.cpp
@@ -4718,7 +4718,7 @@ int32_t WelsEncoderParamAdjust (sWelsEncCtx** ppCtx, SWelsSvcCodingParam* pNewPa
       pOldDlpInternal->fInputFrameRate  = pNewDlpInternal->fInputFrameRate;     // input frame rate
       pOldDlpInternal->fOutputFrameRate = pNewDlpInternal->fOutputFrameRate;    // output frame rate
       pOldDlp->iSpatialBitrate          = pNewDlp->iSpatialBitrate;
-
+      pOldDlp->iMaxSpatialBitrate       = pNewDlp->iMaxSpatialBitrate;
       pOldDlp->uiProfileIdc             =
         pNewDlp->uiProfileIdc;                        // value of profile IDC (0 for auto-detection)
       pOldDlp->iDLayerQp                = pNewDlp->iDLayerQp;
diff --git a/codec/encoder/core/src/ratectl.cpp b/codec/encoder/core/src/ratectl.cpp
index 706eeb95..82b50a13 100644
--- a/codec/encoder/core/src/ratectl.cpp
+++ b/codec/encoder/core/src/ratectl.cpp
@@ -1331,10 +1331,20 @@ void  WelsRcPictureInitGomTimeStamp (sWelsEncCtx* pEncCtx, long long uiTimeStamp
   int32_t iLumaQp = pWelsSvcRc->iLastCalculatedQScale;
   int32_t iTl                 = pEncCtx->uiTemporalId;
   SRCTemporal* pTOverRc       = &pWelsSvcRc->pTemporalOverRc[iTl];
-  //decide one frame bits allocated
   if (pEncCtx->eSliceType == I_SLICE) {
     if (0 == pWelsSvcRc->iIdrNum) { //iIdrNum == 0 means encoder has been initialed
       RcInitRefreshParameter (pEncCtx);
+    }
+  }
+  if (RcJudgeBitrateFpsUpdate (pEncCtx)) {
+    RcUpdateBitrateFps (pEncCtx);
+  }
+  if (pEncCtx->uiTemporalId == 0) {
+    RcUpdateTemporalZero (pEncCtx);
+  }
+  //decide one frame bits allocated
+  if (pEncCtx->eSliceType == I_SLICE) {
+    if (0 == pWelsSvcRc->iIdrNum) { //iIdrNum == 0 means encoder has been initialed
       RcInitIdrQp (pEncCtx);
       iLumaQp = pWelsSvcRc->iInitialQp;
       pWelsSvcRc->iTargetBits = static_cast<int32_t> (((double) (pDLayerParam->iSpatialBitrate) / (double) (