diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c
index be54bf9a14..132cf47bb2 100644
--- a/libavcodec/qsvenc.c
+++ b/libavcodec/qsvenc.c
@@ -682,7 +682,7 @@ int ff_qsv_enc_init(AVCodecContext *avctx, QSVEncContext *q)
     q->param.AsyncDepth = q->async_depth;
 
     q->async_fifo = av_fifo_alloc((1 + q->async_depth) *
-                                  (sizeof(AVPacket) + sizeof(mfxSyncPoint) + sizeof(mfxBitstream*)));
+                                  (sizeof(AVPacket) + sizeof(mfxSyncPoint*) + sizeof(mfxBitstream*)));
     if (!q->async_fifo)
         return AVERROR(ENOMEM);
 
@@ -926,7 +926,7 @@ static int encode_frame(AVCodecContext *avctx, QSVEncContext *q,
     mfxBitstream *bs;
 
     mfxFrameSurface1 *surf = NULL;
-    mfxSyncPoint sync      = NULL;
+    mfxSyncPoint *sync      = NULL;
     QSVFrame *qsv_frame = NULL;
     mfxEncodeCtrl* enc_ctrl = NULL;
     int ret;
@@ -961,8 +961,15 @@ static int encode_frame(AVCodecContext *avctx, QSVEncContext *q,
         q->set_encode_ctrl_cb(avctx, frame, &qsv_frame->enc_ctrl);
     }
 
+    sync = av_mallocz(sizeof(*sync));
+    if (!sync) {
+        av_freep(&bs);
+        av_packet_unref(&new_pkt);
+        return AVERROR(ENOMEM);
+    }
+
     do {
-        ret = MFXVideoENCODE_EncodeFrameAsync(q->session, enc_ctrl, surf, bs, &sync);
+        ret = MFXVideoENCODE_EncodeFrameAsync(q->session, enc_ctrl, surf, bs, sync);
         if (ret == MFX_WRN_DEVICE_BUSY) {
             av_usleep(500);
             continue;
@@ -991,6 +998,7 @@ static int encode_frame(AVCodecContext *avctx, QSVEncContext *q,
         av_fifo_generic_write(q->async_fifo, &sync,    sizeof(sync),    NULL);
         av_fifo_generic_write(q->async_fifo, &bs,      sizeof(bs),    NULL);
     } else {
+        av_freep(&sync);
         av_packet_unref(&new_pkt);
         av_freep(&bs);
     }
@@ -1011,14 +1019,14 @@ int ff_qsv_encode(AVCodecContext *avctx, QSVEncContext *q,
         (!frame && av_fifo_size(q->async_fifo))) {
         AVPacket new_pkt;
         mfxBitstream *bs;
-        mfxSyncPoint sync;
+        mfxSyncPoint *sync;
 
         av_fifo_generic_read(q->async_fifo, &new_pkt, sizeof(new_pkt), NULL);
         av_fifo_generic_read(q->async_fifo, &sync,    sizeof(sync),    NULL);
         av_fifo_generic_read(q->async_fifo, &bs,      sizeof(bs),      NULL);
 
         do {
-            ret = MFXVideoCORE_SyncOperation(q->session, sync, 1000);
+            ret = MFXVideoCORE_SyncOperation(q->session, *sync, 1000);
         } while (ret == MFX_WRN_IN_EXECUTION);
 
         new_pkt.dts  = av_rescale_q(bs->DecodeTimeStamp, (AVRational){1, 90000}, avctx->time_base);
@@ -1041,6 +1049,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
 #endif
 
         av_freep(&bs);
+        av_freep(&sync);
 
         if (pkt->data) {
             if (pkt->size < new_pkt.size) {
@@ -1087,13 +1096,14 @@ int ff_qsv_enc_close(AVCodecContext *avctx, QSVEncContext *q)
 
     while (q->async_fifo && av_fifo_size(q->async_fifo)) {
         AVPacket pkt;
-        mfxSyncPoint sync;
+        mfxSyncPoint *sync;
         mfxBitstream *bs;
 
         av_fifo_generic_read(q->async_fifo, &pkt,  sizeof(pkt),  NULL);
         av_fifo_generic_read(q->async_fifo, &sync, sizeof(sync), NULL);
         av_fifo_generic_read(q->async_fifo, &bs,   sizeof(bs),   NULL);
 
+        av_freep(&sync);
         av_freep(&bs);
         av_packet_unref(&pkt);
     }