shithub: openh264

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Merge pull request #1981 from HaiboZhu/Debug_mosaic_T30

Bug fix about PrevRefFrameNum update logic error

--- a/codec/decoder/core/src/decoder_core.cpp

+++ b/codec/decoder/core/src/decoder_core.cpp

@@ -2345,7 +2345,8 @@

     }

     // need update frame_num due current frame is well decoded

-    pCtx->iPrevFrameNum	= pSh->iFrameNum;

+    if (pCurAu->pNalUnitsList[pCurAu->uiStartPos]->sNalHeaderExt.sNalUnitHeader.uiNalRefIdc > 0)

+      pCtx->iPrevFrameNum	= pSh->iFrameNum;

     if (pCtx->bLastHasMmco5)

       pCtx->iPrevFrameNum = 0;

   }

@@ -2403,7 +2404,8 @@

       }

     }

     pCtx->pDec = NULL;

-    pCtx->iPrevFrameNum = pCtx->sLastSliceHeader.iFrameNum; //save frame_num

+    if (pAu->pNalUnitsList[pAu->uiStartPos]->sNalHeaderExt.sNalUnitHeader.uiNalRefIdc > 0)

+      pCtx->iPrevFrameNum = pCtx->sLastSliceHeader.iFrameNum; //save frame_num

     if (pCtx->bLastHasMmco5)

       pCtx->iPrevFrameNum = 0;

   }