shithub: openh264

Download patch

ref: 40015510279615b041a0c0bab7d5195088e2cf56
parent: 458cc6b4fd515e7b8dfd8adc9a79f39d5036c4f7
parent: 311f7006fdf0905e957aeb2ff1c90f62f6e041fd
author: huili2 <[email protected]>
date: Mon Sep 15 05:15:08 EDT 2014 

Merge pull request #1349 from dongzha/AddAPIUTEncoder_Decoder

add encoder/decoder api test for LTR and EC flag


--- a/codec/decoder/core/inc/decoder_core.h
+++ b/codec/decoder/core/inc/decoder_core.h
@@ -144,8 +144,7 @@
 /*
  * Check if frame is completed and EC is required
  */
-bool CheckAndDoEC (PWelsDecoderContext pCtx, uint8_t** pDst, SBufferInfo* pDstInfo);
-
+bool CheckAndFinishLastPic (PWelsDecoderContext pCtx, uint8_t** pDst, SBufferInfo* pDstInfo);
 /*
  *	Prepare current dq layer context initialization.
  */
--- a/codec/decoder/core/src/decoder.cpp
+++ b/codec/decoder/core/src/decoder.cpp
@@ -462,8 +462,8 @@
 
           iConsumedBytes = 0;
           pNalPayload	= ParseNalHeader (pCtx, &pCtx->sCurNalHead, pDstNal, iDstIdx, pSrcNal - 3, iSrcIdx + 3, &iConsumedBytes);
-          if ((pCtx->eErrorConMethod != ERROR_CON_DISABLE) && (IS_VCL_NAL (pCtx->sCurNalHead.eNalUnitType, 1))) {
-            CheckAndDoEC (pCtx, ppDst, pDstBufInfo);
+          if (IS_VCL_NAL (pCtx->sCurNalHead.eNalUnitType, 1)) {
+            CheckAndFinishLastPic (pCtx, ppDst, pDstBufInfo);
           }
           if (IS_PARAM_SETS_NALS (pCtx->sCurNalHead.eNalUnitType) && pNalPayload) {
             iRet = ParseNonVclNal (pCtx, pNalPayload, iDstIdx - iConsumedBytes);
@@ -522,8 +522,8 @@
 
     iConsumedBytes = 0;
     pNalPayload = ParseNalHeader (pCtx, &pCtx->sCurNalHead, pDstNal, iDstIdx, pSrcNal - 3, iSrcIdx + 3, &iConsumedBytes);
-    if ((pCtx->eErrorConMethod != ERROR_CON_DISABLE) && (IS_VCL_NAL (pCtx->sCurNalHead.eNalUnitType, 1))) {
-      CheckAndDoEC (pCtx, ppDst, pDstBufInfo);
+    if (IS_VCL_NAL (pCtx->sCurNalHead.eNalUnitType, 1)) {
+      CheckAndFinishLastPic (pCtx, ppDst, pDstBufInfo);
     }
     if (IS_PARAM_SETS_NALS (pCtx->sCurNalHead.eNalUnitType) && pNalPayload) {
       iRet = ParseNonVclNal (pCtx, pNalPayload, iDstIdx - iConsumedBytes);
--- a/codec/decoder/core/src/decoder_core.cpp
+++ b/codec/decoder/core/src/decoder_core.cpp
@@ -2001,7 +2001,7 @@
   return ERR_NONE;
 }
 
-bool CheckAndDoEC (PWelsDecoderContext pCtx, uint8_t** ppDst, SBufferInfo* pDstInfo) {
+bool CheckAndFinishLastPic (PWelsDecoderContext pCtx, uint8_t** ppDst, SBufferInfo* pDstInfo) {
   PAccessUnit pAu = pCtx->pAccessUnitList;
   PNalUnit pCurNal = pAu->pNalUnitsList[pAu->uiEndPos];
   if ((pCtx->iTotalNumMbRec != 0)
@@ -2009,12 +2009,16 @@
                                       &pCurNal->sNalData.sVclNal.sSliceHeaderExt.sSliceHeader))) {
     //Do Error Concealment here
     if (NeedErrorCon (pCtx)) { //should always be true!
-      ImplementErrorCon (pCtx);
-      pCtx->iTotalNumMbRec = pCtx->pSps->iMbWidth * pCtx->pSps->iMbHeight;
-      DecodeFrameConstruction (pCtx, ppDst, pDstInfo);
-      if (pCtx->sLastNalHdrExt.sNalUnitHeader.uiNalRefIdc > 0) {
-        pCtx->pPreviousDecodedPictureInDpb = pCtx->pDec; //save ECed pic for future use
-        MarkECFrameAsRef (pCtx);
+      if (pCtx->eErrorConMethod != ERROR_CON_DISABLE) {
+        ImplementErrorCon (pCtx);
+        pCtx->iTotalNumMbRec = pCtx->pSps->iMbWidth * pCtx->pSps->iMbHeight;
+        DecodeFrameConstruction (pCtx, ppDst, pDstInfo);
+        if (pCtx->sLastNalHdrExt.sNalUnitHeader.uiNalRefIdc > 0) {
+          pCtx->pPreviousDecodedPictureInDpb = pCtx->pDec; //save ECed pic for future use
+          MarkECFrameAsRef (pCtx);
+        }
+      } else {
+        DecodeFrameConstruction (pCtx, ppDst, pDstInfo);
       }
       pCtx->iPrevFrameNum = pCtx->sLastSliceHeader.iFrameNum; //save frame_num
       if (pCtx->bLastHasMmco5)
@@ -2023,5 +2027,4 @@
   }
   return ERR_NONE;
 }
-
 } // namespace WelsDec
--- a/test/api/encode_decode_api_test.cpp
+++ b/test/api/encode_decode_api_test.cpp
@@ -4,16 +4,28 @@
 #include "utils/FileInputStream.h"
 #include "BaseDecoderTest.h"
 #include "BaseEncoderTest.h"
+#include "wels_common_defs.h"
 #include <string>
+#include <vector>
+using namespace WelsCommon;
 
+typedef struct SLost_Sim {
+  WelsCommon::EWelsNalUnitType eNalType;
+  bool isLost;
+} SLostSim;
+
+
 struct EncodeDecodeFileParamBase {
   int numframes;
   int width;
   int height;
   float frameRate;
+  int slicenum;
+  bool bLostPara;
+  const char* pLossSequence;
 };
 
-class EncodeDecodeTestBase : public ::testing::Test,
+class EncodeDecodeTestBase : public ::testing::TestWithParam<EncodeDecodeFileParamBase>,
   public BaseEncoderTest, public BaseDecoderTest {
  public:
   virtual void SetUp() {
@@ -54,6 +66,7 @@
   SEncParamExt param_;
   BufferedData buf_;
   SBufferInfo dstBufInfo_;
+  std::vector<SLostSim> m_SLostSim;
 };
 
 class EncodeDecodeTestAPI : public EncodeDecodeTestBase {
@@ -71,12 +84,15 @@
   }
 };
 
-static const EncodeDecodeFileParamBase kFileParamArray =
-{300, 160, 96, 6.0f};
+static const EncodeDecodeFileParamBase kFileParamArray[] = {
+  {300, 160, 96, 6.0f, 2, 1, "000000000000001010101010101010101010101001101010100000010101000011"},
+  {300, 140, 96, 6.0f, 4, 1, "000000000000001010101010101010101010101001101010100000010101000011"},
+};
 
-TEST_F (EncodeDecodeTestAPI, DecoderVclNal) {
-  EncodeDecodeFileParamBase p = kFileParamArray;
+TEST_P (EncodeDecodeTestAPI, DecoderVclNal) {
+  EncodeDecodeFileParamBase p = GetParam();
   prepareParam (p.width, p.height, p.frameRate);
+  encoder_->Uninitialize();
   int rv = encoder_->InitializeExt (&param_);
   ASSERT_TRUE (rv == cmResultSuccess);
 
@@ -86,7 +102,9 @@
 
   buf_.SetLength (frameSize);
   ASSERT_TRUE (buf_.Length() == (size_t)frameSize);
-
+  int32_t iTraceLevel = WELS_LOG_QUIET;
+  encoder_->SetOption (ENCODER_OPTION_TRACE_LEVEL, &iTraceLevel);
+  decoder_->SetOption (DECODER_OPTION_TRACE_LEVEL, &iTraceLevel);
   SFrameBSInfo info;
   memset (&info, 0, sizeof (SFrameBSInfo));
 
@@ -123,9 +141,10 @@
   //ignore last frame
 }
 
-TEST_F (EncodeDecodeTestAPI, GetOptionFramenum) {
-  EncodeDecodeFileParamBase p = kFileParamArray;
+TEST_P (EncodeDecodeTestAPI, GetOptionFramenum) {
+  EncodeDecodeFileParamBase p = GetParam();
   prepareParam (p.width, p.height, p.frameRate);
+  encoder_->Uninitialize();
   int rv = encoder_->InitializeExt (&param_);
   ASSERT_TRUE (rv == cmResultSuccess);
 
@@ -132,7 +151,9 @@
   //init for encoder
   // I420: 1(Y) + 1/4(U) + 1/4(V)
   int frameSize = p.width * p.height * 3 / 2;
-
+  int32_t iTraceLevel = WELS_LOG_QUIET;
+  encoder_->SetOption (ENCODER_OPTION_TRACE_LEVEL, &iTraceLevel);
+  decoder_->SetOption (DECODER_OPTION_TRACE_LEVEL, &iTraceLevel);
   buf_.SetLength (frameSize);
   ASSERT_TRUE (buf_.Length() == (size_t)frameSize);
 
@@ -175,9 +196,10 @@
   //ignore last frame
 }
 
-TEST_F (EncodeDecodeTestAPI, GetOptionIDR) {
-  EncodeDecodeFileParamBase p = kFileParamArray;
+TEST_P (EncodeDecodeTestAPI, GetOptionIDR) {
+  EncodeDecodeFileParamBase p = GetParam();
   prepareParam (p.width, p.height, p.frameRate);
+  encoder_->Uninitialize();
   int rv = encoder_->InitializeExt (&param_);
   ASSERT_TRUE (rv == cmResultSuccess);
 
@@ -184,7 +206,9 @@
   //init for encoder
   // I420: 1(Y) + 1/4(U) + 1/4(V)
   int frameSize = p.width * p.height * 3 / 2;
-
+  int32_t iTraceLevel = WELS_LOG_QUIET;
+  encoder_->SetOption (ENCODER_OPTION_TRACE_LEVEL, &iTraceLevel);
+  decoder_->SetOption (DECODER_OPTION_TRACE_LEVEL, &iTraceLevel);
   buf_.SetLength (frameSize);
   ASSERT_TRUE (buf_.Length() == (size_t)frameSize);
 
@@ -236,3 +260,478 @@
 }
 
 
+long IsKeyFrameLost (ISVCDecoder* pDecoder, SLTRRecoverRequest* p_LTR_Recover_Request, long hr) {
+  long bLost = NO_RECOVERY_REQUSET;
+  int tempInt = -1;
+  int temple_id = -1;
+  bool m_P2PmodeFlag = true;
+  pDecoder->GetOption (DECODER_OPTION_TEMPORAL_ID, &temple_id);
+  if (hr == dsErrorFree) {
+    if (m_P2PmodeFlag && temple_id == 0) {
+      pDecoder->GetOption (DECODER_OPTION_IDR_PIC_ID, &tempInt);
+      // idr_pic_id change ,reset last correct position
+      if (p_LTR_Recover_Request->uiIDRPicId != tempInt) {
+        p_LTR_Recover_Request->uiIDRPicId = tempInt;
+        p_LTR_Recover_Request->iLastCorrectFrameNum = -1;
+      }
+      pDecoder->GetOption (DECODER_OPTION_FRAME_NUM, &tempInt);
+      if (tempInt >= 0) {
+        p_LTR_Recover_Request->iLastCorrectFrameNum = tempInt;
+      }
+    }
+    bLost = NO_RECOVERY_REQUSET;
+  } else if (hr & dsNoParamSets) {
+    bLost = IDR_RECOVERY_REQUEST;
+  } else if (((hr & dsRefLost) && (1 == temple_id)) || ((dsErrorFree != hr) && (0 == temple_id)))	{
+    bLost = LTR_RECOVERY_REQUEST;
+  } else {
+    bLost = NO_RECOVERY_REQUSET;
+  }
+  return bLost;
+}
+
+bool IsLTRMarking (ISVCDecoder* pDecoder) {
+  int bLTR_marking_flag = 0;
+  pDecoder->GetOption (DECODER_OPTION_LTR_MARKING_FLAG, &bLTR_marking_flag);
+  return (bLTR_marking_flag) ? (true) : (false);
+}
+
+void LTRRecoveryRequest (ISVCDecoder* pDecoder, ISVCEncoder* pEncoder, SLTRRecoverRequest* p_LTR_Recover_Request,
+                         long hr) {
+
+  long bKLost = IsKeyFrameLost (pDecoder, p_LTR_Recover_Request, hr);
+  bool m_P2PmodeFlag = true;
+  if (m_P2PmodeFlag) {
+    if (bKLost == IDR_RECOVERY_REQUEST) {
+      pEncoder->ForceIntraFrame (true);
+    } else if (bKLost == LTR_RECOVERY_REQUEST)	{
+      p_LTR_Recover_Request->uiFeedbackType = LTR_RECOVERY_REQUEST;
+      pDecoder->GetOption (DECODER_OPTION_FRAME_NUM, &p_LTR_Recover_Request->iCurrentFrameNum);
+      pDecoder->GetOption (DECODER_OPTION_IDR_PIC_ID, &p_LTR_Recover_Request->uiIDRPicId);
+      pEncoder->SetOption (ENCODER_LTR_RECOVERY_REQUEST, p_LTR_Recover_Request);
+    }
+  } else {
+    if (bKLost == IDR_RECOVERY_REQUEST || bKLost == LTR_RECOVERY_REQUEST)	{
+      p_LTR_Recover_Request->uiFeedbackType = IDR_RECOVERY_REQUEST;
+      pDecoder->GetOption (DECODER_OPTION_FRAME_NUM, &p_LTR_Recover_Request->iCurrentFrameNum);
+      pDecoder->GetOption (DECODER_OPTION_IDR_PIC_ID, &p_LTR_Recover_Request->uiIDRPicId);
+      pEncoder->SetOption (ENCODER_LTR_RECOVERY_REQUEST, p_LTR_Recover_Request);
+    }
+  }
+}
+
+void LTRMarkFeedback (ISVCDecoder* pDecoder, ISVCEncoder* pEncoder, SLTRMarkingFeedback* p_LTR_Marking_Feedback,
+                      long hr) {
+  if (IsLTRMarking (pDecoder) == true) {
+    p_LTR_Marking_Feedback->uiFeedbackType = (hr == dsErrorFree) ? (LTR_MARKING_SUCCESS) : (LTR_MARKING_FAILED);
+    pDecoder->GetOption (DECODER_OPTION_IDR_PIC_ID, &p_LTR_Marking_Feedback->uiIDRPicId);
+    pDecoder->GetOption (DECODER_OPTION_LTR_MARKED_FRAME_NUM, &p_LTR_Marking_Feedback->iLTRFrameNum);
+    pEncoder->SetOption (ENCODER_LTR_MARKING_FEEDBACK, p_LTR_Marking_Feedback);
+  }
+}
+
+
+int SimulateNALLoss (const unsigned char* pSrc,  int& iSrcLen, std::vector<SLostSim>* p_SLostSim,
+                     const char* pLossChars, bool bLossPara, int& iLossIdx, bool& bVCLLoss) {
+  unsigned char* pDst = new unsigned char[iSrcLen];
+  int iLossCharLen = strlen (pLossChars);
+  int iSkipedBytes = 0;
+  int iDstLen = 0;
+  int iBufPos = 0;
+  int ilastprefixlen = 0;
+  int i = 0;
+  bool bLost;
+  bVCLLoss = false;
+  SLostSim tmpSLostSim;
+  p_SLostSim->clear();
+  for (i = 0; i < iSrcLen;) {
+    if (pSrc[i] == 0 && pSrc[i + 1] == 0 && pSrc[i + 2] == 0 && pSrc[i + 3] == 1) {
+      if (i - iBufPos) {
+        tmpSLostSim.eNalType = (EWelsNalUnitType) ((* (pSrc + iBufPos + ilastprefixlen)) & 0x1f);	// eNalUnitType
+        bLost = iLossIdx < iLossCharLen ? (pLossChars[iLossIdx] == '1') : (rand() % 2 == 1);
+        bLost = (!bLossPara) && (IS_PARAM_SETS_NALS (tmpSLostSim.eNalType)) ? false : bLost;
+        iLossIdx++;
+        tmpSLostSim.isLost = bLost;
+        p_SLostSim->push_back (tmpSLostSim);
+        if (!bLost) {
+          memcpy (pDst + iDstLen, pSrc + iBufPos, i - iBufPos);
+          iDstLen += (i - iBufPos);
+        } else {
+          bVCLLoss = (IS_VCL_NAL (tmpSLostSim.eNalType, 1)) ? true : bVCLLoss;
+          iSkipedBytes += (i - iBufPos);
+        }
+      }
+      ilastprefixlen = 4;
+      iBufPos = i;
+      i = i + 4;
+    } else if (pSrc[i] == 0 && pSrc[i + 1] == 0 && pSrc[i + 2] == 1) {
+      if (i - iBufPos) {
+        tmpSLostSim.eNalType = (EWelsNalUnitType) ((* (pSrc + iBufPos + ilastprefixlen)) & 0x1f);	// eNalUnitType
+        bLost = iLossIdx < iLossCharLen ? (pLossChars[iLossIdx] == '1') : (rand() % 2 == 1);
+        bLost = (!bLossPara) && (IS_PARAM_SETS_NALS (tmpSLostSim.eNalType)) ? false : bLost;
+        iLossIdx++;
+        tmpSLostSim.isLost = bLost;
+        p_SLostSim->push_back (tmpSLostSim);
+        if (!bLost) {
+          memcpy (pDst + iDstLen, pSrc + iBufPos, i - iBufPos);
+          iDstLen += (i - iBufPos);
+        } else {
+          bVCLLoss = (IS_VCL_NAL (tmpSLostSim.eNalType, 1)) ? true : bVCLLoss;
+          iSkipedBytes += (i - iBufPos);
+        }
+      }
+      ilastprefixlen = 3;
+      iBufPos = i;
+      i = i + 3;
+    } else {
+      i++;
+    }
+  }
+  if (i - iBufPos) {
+    tmpSLostSim.eNalType = (EWelsNalUnitType) ((* (pSrc + iBufPos + ilastprefixlen)) & 0x1f);	// eNalUnitType
+    bLost = iLossIdx < iLossCharLen ? (pLossChars[iLossIdx] == '1') : (rand() % 2 == 1);
+    bLost = (!bLossPara) && (IS_PARAM_SETS_NALS (tmpSLostSim.eNalType)) ? false : bLost;
+    iLossIdx++;
+    tmpSLostSim.isLost = bLost;
+    p_SLostSim->push_back (tmpSLostSim);
+    if (!bLost) {
+      memcpy (pDst + iDstLen, pSrc + iBufPos, i - iBufPos);
+      iDstLen += (i - iBufPos);
+    } else {
+      bVCLLoss = (IS_VCL_NAL (tmpSLostSim.eNalType, 1)) ? true : bVCLLoss;
+      iSkipedBytes += (i - iBufPos);
+    }
+  }
+  memset ((void*)pSrc, 0, iSrcLen);
+  memcpy ((void*)pSrc, pDst, iDstLen);
+  iSrcLen = iDstLen;
+  delete pDst;
+  return iSkipedBytes;
+}
+
+TEST_P (EncodeDecodeTestAPI, GetOptionLTR_ALLIDR) {
+  EncodeDecodeFileParamBase p = GetParam();
+  prepareParam (p.width, p.height, p.frameRate);
+  encoder_->Uninitialize();
+  int rv = encoder_->InitializeExt (&param_);
+  ASSERT_TRUE (rv == cmResultSuccess);
+  int frameSize = p.width * p.height * 3 / 2;
+  buf_.SetLength (frameSize);
+  ASSERT_TRUE (buf_.Length() == (size_t)frameSize);
+
+  SFrameBSInfo info;
+  memset (&info, 0, sizeof (SFrameBSInfo));
+  SSourcePicture pic;
+  memset (&pic, 0, sizeof (SSourcePicture));
+  pic.iPicWidth = p.width;
+  pic.iPicHeight = p.height;
+  pic.iColorFormat = videoFormatI420;
+  pic.iStride[0] = pic.iPicWidth;
+  pic.iStride[1] = pic.iStride[2] = pic.iPicWidth >> 1;
+  pic.pData[0] = buf_.data();
+  pic.pData[1] = pic.pData[0] + p.width * p.height;
+  pic.pData[2] = pic.pData[1] + (p.width * p.height >> 2);
+  int32_t iTraceLevel = WELS_LOG_QUIET;
+  encoder_->SetOption (ENCODER_OPTION_TRACE_LEVEL, &iTraceLevel);
+  decoder_->SetOption (DECODER_OPTION_TRACE_LEVEL, &iTraceLevel);
+  int32_t iSpsPpsIdAddition = 1;
+  encoder_->SetOption (ENCODER_OPTION_ENABLE_SPS_PPS_ID_ADDITION, &iSpsPpsIdAddition);
+  int32_t iIDRPeriod = 60;
+  encoder_->SetOption (ENCODER_OPTION_IDR_INTERVAL, &iIDRPeriod);
+  SLTRConfig sLtrConfigVal;
+  sLtrConfigVal.bEnableLongTermReference = 1;
+  sLtrConfigVal.iLTRRefNum = 1;
+  encoder_->SetOption (ENCODER_OPTION_LTR, &sLtrConfigVal);
+  int32_t iLtrPeriod = 2;
+  encoder_->SetOption (ENCODER_LTR_MARKING_PERIOD, &iLtrPeriod);
+  int iIdx = 0;
+  while (iIdx <= p.numframes) {
+    memset (buf_.data(), rand() % 256, frameSize);
+    rv = encoder_->EncodeFrame (&pic, &info);
+    ASSERT_EQ (rv, cmResultSuccess);
+    ASSERT_TRUE (info.eFrameType == videoFrameTypeIDR);
+    encoder_->ForceIntraFrame (true);
+    iIdx++;
+  }
+}
+
+TEST_P (EncodeDecodeTestAPI, GetOptionLTR_ALLLTR) {
+  SLTRMarkingFeedback m_LTR_Marking_Feedback;
+  SLTRRecoverRequest m_LTR_Recover_Request;
+  EncodeDecodeFileParamBase p = GetParam();
+  prepareParam (p.width, p.height, p.frameRate);
+  encoder_->Uninitialize();
+  int rv = encoder_->InitializeExt (&param_);
+  ASSERT_TRUE (rv == cmResultSuccess);
+  m_LTR_Recover_Request.uiFeedbackType = NO_RECOVERY_REQUSET;
+  int frameSize = p.width * p.height * 3 / 2;
+  buf_.SetLength (frameSize);
+  ASSERT_TRUE (buf_.Length() == (size_t)frameSize);
+  SFrameBSInfo info;
+  memset (&info, 0, sizeof (SFrameBSInfo));
+
+  SSourcePicture pic;
+  memset (&pic, 0, sizeof (SSourcePicture));
+  pic.iPicWidth = p.width;
+  pic.iPicHeight = p.height;
+  pic.iColorFormat = videoFormatI420;
+  pic.iStride[0] = pic.iPicWidth;
+  pic.iStride[1] = pic.iStride[2] = pic.iPicWidth >> 1;
+  pic.pData[0] = buf_.data();
+  pic.pData[1] = pic.pData[0] + p.width * p.height;
+  pic.pData[2] = pic.pData[1] + (p.width * p.height >> 2);
+  int32_t iTraceLevel = WELS_LOG_QUIET;
+  encoder_->SetOption (ENCODER_OPTION_TRACE_LEVEL, &iTraceLevel);
+  decoder_->SetOption (DECODER_OPTION_TRACE_LEVEL, &iTraceLevel);
+  int32_t iSpsPpsIdAddition = 1;
+  encoder_->SetOption (ENCODER_OPTION_ENABLE_SPS_PPS_ID_ADDITION, &iSpsPpsIdAddition);
+  int32_t iIDRPeriod = 60;
+  encoder_->SetOption (ENCODER_OPTION_IDR_INTERVAL, &iIDRPeriod);
+  SLTRConfig sLtrConfigVal;
+  sLtrConfigVal.bEnableLongTermReference = 1;
+  sLtrConfigVal.iLTRRefNum = 1;
+  encoder_->SetOption (ENCODER_OPTION_LTR, &sLtrConfigVal);
+  int32_t iLtrPeriod = 2;
+  encoder_->SetOption (ENCODER_LTR_MARKING_PERIOD, &iLtrPeriod);
+  int iIdx = 0;
+  while (iIdx <= p.numframes) {
+    memset (buf_.data(), rand() % 256, frameSize);
+    rv = encoder_->EncodeFrame (&pic, &info);
+    if (m_LTR_Recover_Request.uiFeedbackType == IDR_RECOVERY_REQUEST) {
+      ASSERT_TRUE (info.eFrameType == videoFrameTypeIDR);
+    }
+    ASSERT_TRUE (rv == cmResultSuccess || rv == cmUnkonwReason);
+    m_LTR_Recover_Request.uiFeedbackType = LTR_RECOVERY_REQUEST;
+    m_LTR_Recover_Request.iCurrentFrameNum = rand() % 2 == 1 ? -rand() % 10000 : rand() % 10000;
+    m_LTR_Recover_Request.uiIDRPicId = rand() % 2 == 1 ? -rand() % 10000 : rand() % 10000;
+    encoder_->SetOption (ENCODER_LTR_RECOVERY_REQUEST, &m_LTR_Recover_Request);
+    m_LTR_Marking_Feedback.uiFeedbackType = rand() % 2 == 1 ? LTR_MARKING_SUCCESS : LTR_MARKING_FAILED;
+    m_LTR_Marking_Feedback.uiIDRPicId = rand() % 2 == 1 ? -rand() % 10000 : rand() % 10000;
+    m_LTR_Marking_Feedback.iLTRFrameNum = rand() % 2 == 1 ? -rand() % 10000 : rand() % 10000;
+    encoder_->SetOption (ENCODER_LTR_MARKING_FEEDBACK, &m_LTR_Marking_Feedback);
+    iIdx++;
+  }
+}
+
+TEST_P (EncodeDecodeTestAPI, GetOptionLTR_Engine) {
+  SLTRMarkingFeedback m_LTR_Marking_Feedback;
+  SLTRRecoverRequest m_LTR_Recover_Request;
+  EncodeDecodeFileParamBase p = GetParam();
+  prepareParam (p.width, p.height, p.frameRate);
+  param_.sSpatialLayers[0].sSliceCfg.uiSliceMode = SM_FIXEDSLCNUM_SLICE;
+  param_.sSpatialLayers[0].sSliceCfg.sSliceArgument.uiSliceNum = p.slicenum;
+  encoder_->Uninitialize();
+  int rv = encoder_->InitializeExt (&param_);
+  ASSERT_TRUE (rv == cmResultSuccess);
+  m_LTR_Recover_Request.uiFeedbackType = NO_RECOVERY_REQUSET;
+  int frameSize = p.width * p.height * 3 / 2;
+  buf_.SetLength (frameSize);
+  ASSERT_TRUE (buf_.Length() == (size_t)frameSize);
+  SFrameBSInfo info;
+  memset (&info, 0, sizeof (SFrameBSInfo));
+
+  SSourcePicture pic;
+  memset (&pic, 0, sizeof (SSourcePicture));
+  pic.iPicWidth = p.width;
+  pic.iPicHeight = p.height;
+  pic.iColorFormat = videoFormatI420;
+  pic.iStride[0] = pic.iPicWidth;
+  pic.iStride[1] = pic.iStride[2] = pic.iPicWidth >> 1;
+  pic.pData[0] = buf_.data();
+  pic.pData[1] = pic.pData[0] + p.width * p.height;
+  pic.pData[2] = pic.pData[1] + (p.width * p.height >> 2);
+  int32_t iTraceLevel = WELS_LOG_QUIET;
+  encoder_->SetOption (ENCODER_OPTION_TRACE_LEVEL, &iTraceLevel);
+  decoder_->SetOption (DECODER_OPTION_TRACE_LEVEL, &iTraceLevel);
+  int32_t iSpsPpsIdAddition = 1;
+  encoder_->SetOption (ENCODER_OPTION_ENABLE_SPS_PPS_ID_ADDITION, &iSpsPpsIdAddition);
+  int32_t iIDRPeriod = 60;
+  encoder_->SetOption (ENCODER_OPTION_IDR_INTERVAL, &iIDRPeriod);
+  SLTRConfig sLtrConfigVal;
+  sLtrConfigVal.bEnableLongTermReference = 1;
+  sLtrConfigVal.iLTRRefNum = 1;
+  encoder_->SetOption (ENCODER_OPTION_LTR, &sLtrConfigVal);
+  int32_t iLtrPeriod = 2;
+  encoder_->SetOption (ENCODER_LTR_MARKING_PERIOD, &iLtrPeriod);
+  int iIdx = 0;
+  int iLossIdx = 0;
+  bool bVCLLoss = false;
+  while (iIdx <= p.numframes) {
+    memset (buf_.data(), rand() % 256, frameSize);
+    rv = encoder_->EncodeFrame (&pic, &info);
+    if (m_LTR_Recover_Request.uiFeedbackType == IDR_RECOVERY_REQUEST) {
+      ASSERT_TRUE (info.eFrameType == videoFrameTypeIDR);
+    }
+    ASSERT_TRUE (rv == cmResultSuccess || rv == cmUnkonwReason);
+    //decoding after each encoding frame
+    int len = 0;
+    encToDecData (info, len);
+    unsigned char* pData[3] = { NULL };
+    memset (&dstBufInfo_, 0, sizeof (SBufferInfo));
+    SimulateNALLoss (info.sLayerInfo[0].pBsBuf, len, &m_SLostSim, p.pLossSequence, p.bLostPara, iLossIdx, bVCLLoss);
+    rv = decoder_->DecodeFrame2 (info.sLayerInfo[0].pBsBuf, len, pData, &dstBufInfo_);
+    m_LTR_Recover_Request.uiFeedbackType = NO_RECOVERY_REQUSET;
+    LTRRecoveryRequest (decoder_, encoder_, &m_LTR_Recover_Request, rv);
+    rv = decoder_->DecodeFrame2 (NULL, 0, pData, &dstBufInfo_); //reconstruction
+    LTRRecoveryRequest (decoder_, encoder_, &m_LTR_Recover_Request, rv);
+    LTRMarkFeedback (decoder_, encoder_, &m_LTR_Marking_Feedback, rv);
+    iIdx++;
+  }
+}
+
+TEST_P (EncodeDecodeTestAPI, SetOptionECFlag_ERROR_CON_DISABLE) {
+  SLTRMarkingFeedback m_LTR_Marking_Feedback;
+  SLTRRecoverRequest m_LTR_Recover_Request;
+  EncodeDecodeFileParamBase p = GetParam();
+  prepareParam (p.width, p.height, p.frameRate);
+  param_.sSpatialLayers[0].sSliceCfg.uiSliceMode = SM_FIXEDSLCNUM_SLICE;
+  param_.sSpatialLayers[0].sSliceCfg.sSliceArgument.uiSliceNum = p.slicenum;
+  param_.bEnableLongTermReference = true;
+  param_.iLTRRefNum = 1;
+  encoder_->Uninitialize();
+  int rv = encoder_->InitializeExt (&param_);
+  ASSERT_TRUE (rv == cmResultSuccess);
+  if (decoder_ != NULL) {
+    decoder_->Uninitialize();
+  }
+  SDecodingParam decParam;
+  memset (&decParam, 0, sizeof (SDecodingParam));
+  decParam.eOutputColorFormat  = videoFormatI420;
+  decParam.uiTargetDqLayer = UCHAR_MAX;
+  decParam.eEcActiveIdc = ERROR_CON_DISABLE;
+  decParam.sVideoProperty.eVideoBsType = VIDEO_BITSTREAM_DEFAULT;
+  rv = decoder_->Initialize (&decParam);
+  ASSERT_EQ (0, rv);
+  m_LTR_Recover_Request.uiFeedbackType = NO_RECOVERY_REQUSET;
+  int frameSize = p.width * p.height * 3 / 2;
+  buf_.SetLength (frameSize);
+  ASSERT_TRUE (buf_.Length() == (size_t)frameSize);
+  SFrameBSInfo info;
+  memset (&info, 0, sizeof (SFrameBSInfo));
+
+  SSourcePicture pic;
+  memset (&pic, 0, sizeof (SSourcePicture));
+  pic.iPicWidth = p.width;
+  pic.iPicHeight = p.height;
+  pic.iColorFormat = videoFormatI420;
+  pic.iStride[0] = pic.iPicWidth;
+  pic.iStride[1] = pic.iStride[2] = pic.iPicWidth >> 1;
+  pic.pData[0] = buf_.data();
+  pic.pData[1] = pic.pData[0] + p.width * p.height;
+  pic.pData[2] = pic.pData[1] + (p.width * p.height >> 2);
+  int32_t iTraceLevel = WELS_LOG_QUIET;
+  encoder_->SetOption (ENCODER_OPTION_TRACE_LEVEL, &iTraceLevel);
+  decoder_->SetOption (DECODER_OPTION_TRACE_LEVEL, &iTraceLevel);
+  int32_t iSpsPpsIdAddition = 1;
+  encoder_->SetOption (ENCODER_OPTION_ENABLE_SPS_PPS_ID_ADDITION, &iSpsPpsIdAddition);
+  int32_t iIDRPeriod = 60;
+  encoder_->SetOption (ENCODER_OPTION_IDR_INTERVAL, &iIDRPeriod);
+  SLTRConfig sLtrConfigVal;
+  sLtrConfigVal.bEnableLongTermReference = 1;
+  sLtrConfigVal.iLTRRefNum = 1;
+  encoder_->SetOption (ENCODER_OPTION_LTR, &sLtrConfigVal);
+  int32_t iLtrPeriod = 2;
+  encoder_->SetOption (ENCODER_LTR_MARKING_PERIOD, &iLtrPeriod);
+  int iIdx = 0;
+  int iLossIdx = 0;
+  int iSkipedBytes;
+  bool bVCLLoss = false;
+  while (iIdx <= p.numframes) {
+    memset (buf_.data(), rand() % 256, frameSize);
+    rv = encoder_->EncodeFrame (&pic, &info);
+    if (m_LTR_Recover_Request.uiFeedbackType == IDR_RECOVERY_REQUEST) {
+      ASSERT_TRUE (info.eFrameType == videoFrameTypeIDR);
+    }
+    ASSERT_TRUE (rv == cmResultSuccess || rv == cmUnkonwReason);
+    //decoding after each encoding frame
+    int len = 0;
+    encToDecData (info, len);
+    unsigned char* pData[3] = { NULL };
+    memset (&dstBufInfo_, 0, sizeof (SBufferInfo));
+    iSkipedBytes = SimulateNALLoss (info.sLayerInfo[0].pBsBuf, len, &m_SLostSim, p.pLossSequence, p.bLostPara, iLossIdx,
+                                    bVCLLoss);
+    rv = decoder_->DecodeFrame2 (info.sLayerInfo[0].pBsBuf, len, pData, &dstBufInfo_);
+    m_LTR_Recover_Request.uiFeedbackType = NO_RECOVERY_REQUSET;
+    LTRRecoveryRequest (decoder_, encoder_, &m_LTR_Recover_Request, rv);
+    rv = decoder_->DecodeFrame2 (NULL, 0, pData, &dstBufInfo_); //reconstruction
+    LTRRecoveryRequest (decoder_, encoder_, &m_LTR_Recover_Request, rv);
+    LTRMarkFeedback (decoder_, encoder_, &m_LTR_Marking_Feedback, rv);
+    if (iSkipedBytes && bVCLLoss) {
+      ASSERT_TRUE (dstBufInfo_.iBufferStatus == 0);
+    }
+    iIdx++;
+  }
+}
+
+TEST_P (EncodeDecodeTestAPI, SetOptionECFlag_ERROR_CON_SLICE_COPY) {
+  SLTRMarkingFeedback m_LTR_Marking_Feedback;
+  SLTRRecoverRequest m_LTR_Recover_Request;
+  EncodeDecodeFileParamBase p = GetParam();
+  prepareParam (p.width, p.height, p.frameRate);
+  param_.sSpatialLayers[0].sSliceCfg.uiSliceMode = SM_FIXEDSLCNUM_SLICE;
+  param_.sSpatialLayers[0].sSliceCfg.sSliceArgument.uiSliceNum = p.slicenum;
+  encoder_->Uninitialize();
+  int rv = encoder_->InitializeExt (&param_);
+  ASSERT_TRUE (rv == cmResultSuccess);
+  m_LTR_Recover_Request.uiFeedbackType = NO_RECOVERY_REQUSET;
+  int frameSize = p.width * p.height * 3 / 2;
+  buf_.SetLength (frameSize);
+  ASSERT_TRUE (buf_.Length() == (size_t)frameSize);
+  SFrameBSInfo info;
+  memset (&info, 0, sizeof (SFrameBSInfo));
+
+  SSourcePicture pic;
+  memset (&pic, 0, sizeof (SSourcePicture));
+  pic.iPicWidth = p.width;
+  pic.iPicHeight = p.height;
+  pic.iColorFormat = videoFormatI420;
+  pic.iStride[0] = pic.iPicWidth;
+  pic.iStride[1] = pic.iStride[2] = pic.iPicWidth >> 1;
+  pic.pData[0] = buf_.data();
+  pic.pData[1] = pic.pData[0] + p.width * p.height;
+  pic.pData[2] = pic.pData[1] + (p.width * p.height >> 2);
+  int32_t iTraceLevel = WELS_LOG_QUIET;
+  encoder_->SetOption (ENCODER_OPTION_TRACE_LEVEL, &iTraceLevel);
+  decoder_->SetOption (DECODER_OPTION_TRACE_LEVEL, &iTraceLevel);
+  int32_t iSpsPpsIdAddition = 1;
+  encoder_->SetOption (ENCODER_OPTION_ENABLE_SPS_PPS_ID_ADDITION, &iSpsPpsIdAddition);
+  int32_t iIDRPeriod = 60;
+  encoder_->SetOption (ENCODER_OPTION_IDR_INTERVAL, &iIDRPeriod);
+  SLTRConfig sLtrConfigVal;
+  sLtrConfigVal.bEnableLongTermReference = 1;
+  sLtrConfigVal.iLTRRefNum = 1;
+  encoder_->SetOption (ENCODER_OPTION_LTR, &sLtrConfigVal);
+  int32_t iLtrPeriod = 2;
+  encoder_->SetOption (ENCODER_LTR_MARKING_PERIOD, &iLtrPeriod);
+  int iIdx = 0;
+  int iLossIdx = 0;
+  int iSkipedBytes;
+  bool bVCLLoss = false;
+  while (iIdx <= p.numframes) {
+    memset (buf_.data(), rand() % 256, frameSize);
+    rv = encoder_->EncodeFrame (&pic, &info);
+    if (m_LTR_Recover_Request.uiFeedbackType == IDR_RECOVERY_REQUEST) {
+      ASSERT_TRUE (info.eFrameType == videoFrameTypeIDR);
+    }
+    ASSERT_TRUE (rv == cmResultSuccess || rv == cmUnkonwReason);
+    //decoding after each encoding frame
+    int len = 0;
+    encToDecData (info, len);
+    unsigned char* pData[3] = { NULL };
+    memset (&dstBufInfo_, 0, sizeof (SBufferInfo));
+    iSkipedBytes = SimulateNALLoss (info.sLayerInfo[0].pBsBuf, len, &m_SLostSim, p.pLossSequence, p.bLostPara, iLossIdx,
+                                    bVCLLoss);
+    uint32_t uiEcIdc = rand() % 2 == 1 ? ERROR_CON_DISABLE : ERROR_CON_SLICE_COPY;
+    decoder_->SetOption (DECODER_OPTION_ERROR_CON_IDC, &uiEcIdc);
+    rv = decoder_->DecodeFrame2 (info.sLayerInfo[0].pBsBuf, len, pData, &dstBufInfo_);
+    m_LTR_Recover_Request.uiFeedbackType = NO_RECOVERY_REQUSET;
+    LTRRecoveryRequest (decoder_, encoder_, &m_LTR_Recover_Request, rv);
+    rv = decoder_->DecodeFrame2 (NULL, 0, pData, &dstBufInfo_); //reconstruction
+    LTRRecoveryRequest (decoder_, encoder_, &m_LTR_Recover_Request, rv);
+    LTRMarkFeedback (decoder_, encoder_, &m_LTR_Marking_Feedback, rv);
+    iIdx++;
+  }
+}
+
+INSTANTIATE_TEST_CASE_P (EncodeDecodeTestBase, EncodeDecodeTestAPI,
+                         ::testing::ValuesIn (kFileParamArray));