@@ -407,8 +407,14 @@ int ff_hevc_decode_nal_vps(HEVCContext *s)

     }

     get_bits1(gb); /* vps_extension_flag */

-    av_buffer_unref(&s->vps_list[vps_id]);

-    s->vps_list[vps_id] = vps_buf;

+    if (s->vps_list[vps_id] &&

+        !memcmp(s->vps_list[vps_id]->data, vps_buf->data, vps_buf->size)) {

+        av_buffer_unref(&vps_buf);

+    } else {

+        av_buffer_unref(&s->vps_list[vps_id]);

+        s->vps_list[vps_id] = vps_buf;

+    }

+

     return 0;

 err: