diff --git a/media_driver/agnostic/common/codec/hal/codechal_decode_vc1.cpp b/media_driver/agnostic/common/codec/hal/codechal_decode_vc1.cpp
index c5f0a00e0c0..4db14a27b01 100644
--- a/media_driver/agnostic/common/codec/hal/codechal_decode_vc1.cpp
+++ b/media_driver/agnostic/common/codec/hal/codechal_decode_vc1.cpp
@@ -750,7 +750,7 @@ void CodechalDecodeVc1::PackMotionVectors(
     }
     else
     {
-        // default settings for frame pictures, relevant MVs will be reset if needed
+        // default settings for frame pictures, relevant Motion Vectors will be reset if needed
         packedLumaMvs[0] = packedLumaMvs[2] = packedLumaMvs[4] = packedLumaMvs[6] = (int16_t)mv[CodechalDecodeRstFirstForwHorz];
         packedLumaMvs[1] = packedLumaMvs[3] = packedLumaMvs[5] = packedLumaMvs[7] = (int16_t)mv[CodechalDecodeRstFirstForwVert];
 
@@ -2918,9 +2918,6 @@ MOS_STATUS CodechalDecodeVc1::AllocateResources()
         m_vc1RefList,
         CODECHAL_NUM_UNCOMPRESSED_SURFACE_VC1));
 
-    m_vldSliceRecord =
-        (PCODECHAL_VC1_VLD_SLICE_RECORD)MOS_AllocAndZeroMemory(m_picHeightInMb * sizeof(CODECHAL_VC1_VLD_SLICE_RECORD));
-
     // Second level batch buffer for IT mode
     if (m_mode == CODECHAL_DECODE_MODE_VC1IT)
     {
@@ -3041,6 +3038,7 @@ CodechalDecodeVc1::~CodechalDecodeVc1()
     CodecHalFreeDataList(m_vc1RefList, CODECHAL_NUM_UNCOMPRESSED_SURFACE_VC1);
 
     MOS_FreeMemory(m_vldSliceRecord);
+    m_vldSliceRecord = nullptr;
 
     Mhw_FreeBb(m_osInterface, &m_itObjectBatchBuffer, nullptr);
 
@@ -3122,6 +3120,28 @@ MOS_STATUS CodechalDecodeVc1::SetFrameStates()
     if (CodecHalIsDecodeModeVLD(m_mode))
     {
         CODECHAL_DECODE_CHK_NULL_RETURN(m_vc1SliceParams);
+        uint32_t numSliceRecord  = 0;
+        bool     invalidSliceNum = false;
+
+        numSliceRecord = m_numMacroblocks;
+        if (m_numSlices > m_numMacroblocks)
+        {
+            numSliceRecord  = m_numSlices;
+            invalidSliceNum = true;
+        }
+
+        if (numSliceRecord > m_numVldSliceRecord || m_vldSliceRecord == nullptr)
+        {
+            MOS_SafeFreeMemory(m_vldSliceRecord);
+            m_vldSliceRecord =
+                (PCODECHAL_VC1_VLD_SLICE_RECORD)MOS_AllocAndZeroMemory(numSliceRecord * sizeof(CODECHAL_VC1_VLD_SLICE_RECORD));
+            CODECHAL_DECODE_CHK_NULL_RETURN(m_vldSliceRecord);
+            m_numVldSliceRecord = numSliceRecord;
+        }
+        else
+        {
+            MOS_ZeroMemory(m_vldSliceRecord, m_numVldSliceRecord * sizeof(CODECHAL_VC1_VLD_SLICE_RECORD));
+        }
     }
     else if (CodecHalIsDecodeModeIT(m_mode))
     {
diff --git a/media_driver/agnostic/common/codec/hal/codechal_decode_vc1.h b/media_driver/agnostic/common/codec/hal/codechal_decode_vc1.h
index ad708038d26..50e141a8103 100644
--- a/media_driver/agnostic/common/codec/hal/codechal_decode_vc1.h
+++ b/media_driver/agnostic/common/codec/hal/codechal_decode_vc1.h
@@ -743,6 +743,7 @@ class CodechalDecodeVc1 : public CodechalDecode
     MOS_RESOURCE                   m_resBsdMpcRowStoreScratchBuffer;                     //!< Handle of BSD/MPC Row Store Scratch data surface
     MOS_RESOURCE                   m_resVc1BsdMvData[CODECHAL_DECODE_VC1_DMV_MAX];       //!< Handle of VC1 BSD MV Data
     PCODECHAL_VC1_VLD_SLICE_RECORD m_vldSliceRecord = nullptr;                           //!< [VLD mode] Slice record
+    uint32_t                       m_numVldSliceRecord = 0;
     PCODEC_REF_LIST                m_vc1RefList[CODECHAL_NUM_UNCOMPRESSED_SURFACE_VC1];  //!< VC1 Reference List
     MOS_RESOURCE                   m_resSyncObject;                                      //!< Handle of Sync Object
     MOS_RESOURCE                   m_resPrivateBistreamBuffer;                           //!< Handle of Private Bistream Buffer
@@ -901,19 +902,19 @@ class CodechalDecodeVc1 : public CodechalDecode
     void PackMotionVectorsChroma4MvP(uint16_t intraFlags, int16_t *lmv, int16_t *cmv);
 
     //!
-    //! \brief    Find Median for 3 MVs
+    //! \brief    Find Median for 3 Motion Vectors
     //! \param    [in] mv#
     //!           Motion Vectors
     //! \return   int16_t
-    //!           return median for 3 MVs
+    //!           return median for 3 Motion Vectors
     //!
     int16_t PackMotionVectorsMedian3(int16_t mv1, int16_t mv2, int16_t mv3);
     //!
-    //! \brief    Find Median for 4 MVs
+    //! \brief    Find Median for 4 Motion Vectors
     //! \param    [in] mv#
     //!           Motion Vectors
     //! \return   int16_t
-    //!           return median for 4 MVs
+    //!           return median for 4 Motion Vectors
     //!
     int16_t PackMotionVectorsMedian4(int16_t mv1, int16_t mv2, int16_t mv3, int16_t mv4);