From 50c23f18dd02d1a4453bc05c4f0b6ea6d9853545 Mon Sep 17 00:00:00 2001
From: Haihao Xiang <haihao.xiang@intel.com>
Date: Sun, 26 Apr 2020 13:30:16 +0800
Subject: vaapipluginutil: Use GST_VAAPI_DISPLAY_TYPE_DRM for Mesa3D GBM

We may build this plugin with window system support but run it without
window system. Without this patch, the following pipeline will trigger a
segfault when running it without window system.

gst-launch-1.0 filesrc location=input.264 ! h264parse ! vaapih264dec ! fakesink

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi/-/merge_requests/319>
---
 gst/vaapi/gstvaapipluginutil.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gst/vaapi/gstvaapipluginutil.c b/gst/vaapi/gstvaapipluginutil.c
index b4699726..100c1d12 100644
--- a/gst/vaapi/gstvaapipluginutil.c
+++ b/gst/vaapi/gstvaapipluginutil.c
@@ -156,6 +156,11 @@ gst_vaapi_get_display_type_from_gl (GstGLDisplayType gl_display_type,
     case GST_GL_DISPLAY_TYPE_EGL:{
       return GST_VAAPI_DISPLAY_TYPE_EGL;
     }
+#endif
+#if USE_DRM
+    case GST_GL_DISPLAY_TYPE_GBM:{
+      return GST_VAAPI_DISPLAY_TYPE_DRM;
+    }
 #endif
     default:
       /* unsupported display. Still DRM may work. */
-- 
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