From c689c94458f0889871740715bff80aaf4852509a Mon Sep 17 00:00:00 2001
From: Haihao Xiang <haihao.xiang@intel.com>
Date: Tue, 17 Sep 2019 14:42:51 +0800
Subject: [PATCH] msdkdec: release the surface if this surface is not in use

If the surface is not in use, we may release it even if GST_FLOW_OK is going
to be returned, which may avoid the issue of failing to get surface
available

This fixes the regression caused by commit c05acf4
---
 sys/msdk/gstmsdkdec.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sys/msdk/gstmsdkdec.c b/sys/msdk/gstmsdkdec.c
index 50b88c35c2..e22748a005 100644
--- a/sys/msdk/gstmsdkdec.c
+++ b/sys/msdk/gstmsdkdec.c
@@ -1067,7 +1067,11 @@ gst_msdkdec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame)
 
       if (bitstream.DataLength == 0) {
         flow = GST_FLOW_OK;
-        surface = NULL;
+
+        /* Don't release it if the current surface is in use */
+        if (surface && task->surface == surface->surface)
+          surface = NULL;
+
         break;
       }
     } else if (status == MFX_ERR_MORE_DATA) {