change au_ready status and check au number

codec/decoder/core/src/au_parser.cpp

@@ -271,8 +271,10 @@ uint8_t* ParseNalHeader (PWelsDecoderContext pCtx, SNalUnitHeader* pNalUnitHeade
 
         if (uiAvailNalNum > 1) {
           pCurAu->uiEndPos = uiAvailNalNum - 2;
+          if (pCtx->eErrorConMethod == ERROR_CON_DISABLE) {
             pCtx->bAuReadyFlag = true;
           }
+        }
         pCtx->iErrorCode |= dsBitstreamError;
         return NULL;
       }
@@ -291,8 +293,10 @@ uint8_t* ParseNalHeader (PWelsDecoderContext pCtx, SNalUnitHeader* pNalUnitHeade
 
         if (uiAvailNalNum > 1) {
           pCurAu->uiEndPos = uiAvailNalNum - 2;
+          if (pCtx->eErrorConMethod == ERROR_CON_DISABLE) {
             pCtx->bAuReadyFlag = true;
           }
+        }
         pCtx->iErrorCode |= dsBitstreamError;
         return NULL;
       }
@@ -340,8 +344,10 @@ uint8_t* ParseNalHeader (PWelsDecoderContext pCtx, SNalUnitHeader* pNalUnitHeade
       ForceClearCurrentNal (pCurAu);
       if (uiAvailNalNum > 1) {
         pCurAu->uiEndPos = uiAvailNalNum - 2;
+        if (pCtx->eErrorConMethod == ERROR_CON_DISABLE) {
           pCtx->bAuReadyFlag = true;
         }
+      }
       WelsLog (pLogCtx, WELS_LOG_ERROR, "NAL_UNIT_CODED_SLICE: InitBits() fail due invalid access.");
       pCtx->iErrorCode	|= dsBitstreamError;
       return NULL;
@@ -357,8 +363,10 @@ uint8_t* ParseNalHeader (PWelsDecoderContext pCtx, SNalUnitHeader* pNalUnitHeade
 
       if (uiAvailNalNum > 1) {
         pCurAu->uiEndPos = uiAvailNalNum - 2;
+        if (pCtx->eErrorConMethod == ERROR_CON_DISABLE) {
           pCtx->bAuReadyFlag = true;
         }
+      }
       pCtx->iErrorCode |= dsBitstreamError;
       return NULL;
     }

codec/decoder/core/src/decoder.cpp

@@ -626,10 +626,11 @@ int32_t WelsDecodeBs (PWelsDecoderContext pCtx, const uint8_t* kpBsBuf, const in
           pDstNal[iDstIdx] = pDstNal[iDstIdx + 1] = pDstNal[iDstIdx + 2] = pDstNal[iDstIdx + 3] =
                                0; // set 4 reserved bytes to zero
           pNalPayload	= ParseNalHeader (pCtx, &pCtx->sCurNalHead, pDstNal, iDstIdx, pSrcNal - 3, iSrcIdx + 3, &iConsumedBytes);
+          if (pNalPayload) { //parse correct
             if (IS_VCL_NAL (pCtx->sCurNalHead.eNalUnitType, 1)) {
               CheckAndFinishLastPic (pCtx, ppDst, pDstBufInfo);
             }
-          if (IS_PARAM_SETS_NALS (pCtx->sCurNalHead.eNalUnitType) && pNalPayload) {
+            if (IS_PARAM_SETS_NALS (pCtx->sCurNalHead.eNalUnitType)) {
               iRet = ParseNonVclNal (pCtx, pNalPayload, iDstIdx - iConsumedBytes, pSrcNal - 3, iSrcIdx + 3);
             }
             if (pCtx->bAuReadyFlag) {
@@ -646,6 +647,7 @@ int32_t WelsDecodeBs (PWelsDecoderContext pCtx, const uint8_t* kpBsBuf, const in
                 }
               }
             }
+          }
           if (iRet) {
             iRet = 0;
             if (dsNoParamSets & pCtx->iErrorCode) {
@@ -682,10 +684,11 @@ int32_t WelsDecodeBs (PWelsDecoderContext pCtx, const uint8_t* kpBsBuf, const in
     pDstNal[iDstIdx] = pDstNal[iDstIdx + 1] = pDstNal[iDstIdx + 2] = pDstNal[iDstIdx + 3] =
                          0; // set 4 reserved bytes to zero
     pNalPayload = ParseNalHeader (pCtx, &pCtx->sCurNalHead, pDstNal, iDstIdx, pSrcNal - 3, iSrcIdx + 3, &iConsumedBytes);
+    if (pNalPayload) { //parse correct
       if (IS_VCL_NAL (pCtx->sCurNalHead.eNalUnitType, 1)) {
         CheckAndFinishLastPic (pCtx, ppDst, pDstBufInfo);
       }
-    if (IS_PARAM_SETS_NALS (pCtx->sCurNalHead.eNalUnitType) && pNalPayload) {
+      if (IS_PARAM_SETS_NALS (pCtx->sCurNalHead.eNalUnitType)) {
         iRet = ParseNonVclNal (pCtx, pNalPayload, iDstIdx - iConsumedBytes, pSrcNal - 3, iSrcIdx + 3);
       }
       if (pCtx->bAuReadyFlag) {
@@ -700,6 +703,7 @@ int32_t WelsDecodeBs (PWelsDecoderContext pCtx, const uint8_t* kpBsBuf, const in
           return pCtx->iErrorCode;
         }
       }
+    }
     if (iRet) {
       iRet = 0;
       if (dsNoParamSets & pCtx->iErrorCode) {

codec/decoder/core/src/decoder_core.cpp

@@ -2140,6 +2140,8 @@ int32_t DecodeCurrentAccessUnit (PWelsDecoderContext pCtx, uint8_t** ppDst, SBuf
 
 bool CheckAndFinishLastPic (PWelsDecoderContext pCtx, uint8_t** ppDst, SBufferInfo* pDstInfo) {
   PAccessUnit pAu = pCtx->pAccessUnitList;
+  if (pAu->uiAvailUnitsNum == 0)
+    return true;
   PNalUnit pCurNal = pAu->pNalUnitsList[pAu->uiEndPos];
   if ((pCtx->iTotalNumMbRec != 0)
       && (CheckAccessUnitBoundaryExt (&pCtx->sLastNalHdrExt, &pCurNal->sNalHeaderExt, &pCtx->sLastSliceHeader,