File gst-vaapi-plugins-handle-vaapi-allocator.patch of Package gstreamer-plugins-vaapi

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File gst-vaapi-plugins-handle-vaapi-allocator.patch of Package gstreamer-plugins-vaapi (Revision d0b8d5426f0b71f840cb49c4c74c7e14)

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From c0826fdc96d9fca6d0e203e8c23c2b400be5c31a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=ADctor=20Manuel=20J=C3=A1quez=20Leal?=
 <vjaquez@igalia.com>
Date: Thu, 8 Feb 2018 11:33:26 +0100
Subject: plugins: handle vaapi allocator in allocation query

In propose_allocation() if the numer of allocation params is zero, the
system's allocator is added first, and lastly the native VA-API
allocator.

https://bugzilla.gnome.org/show_bug.cgi?id=789476
---
 gst/vaapi/gstvaapipluginbase.c | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/gst/vaapi/gstvaapipluginbase.c b/gst/vaapi/gstvaapipluginbase.c
index 4f43b6c..738f8b6 100644
--- a/gst/vaapi/gstvaapipluginbase.c
+++ b/gst/vaapi/gstvaapipluginbase.c
@@ -819,14 +819,28 @@ gst_vaapi_plugin_base_propose_allocation (GstVaapiPluginBase * plugin,
   if (!caps)
     goto error_no_caps;
 
+  if (!ensure_sinkpad_buffer_pool (plugin, caps))
+    return FALSE;
+
   if (need_pool) {
-    if (!ensure_sinkpad_buffer_pool (plugin, caps))
-      return FALSE;
     gst_query_add_allocation_pool (query, plugin->sinkpad_buffer_pool,
         plugin->sinkpad_buffer_size, BUFFER_POOL_SINK_MIN_BUFFERS, 0);
-    gst_query_add_allocation_param (query, plugin->sinkpad_allocator, NULL);
   }
 
+  /* Set sinkpad allocator as the last allocation param.
+   *
+   * If there's none, set system's allocator first and VAAPI allocator
+   * second
+   */
+  if (gst_query_get_n_allocation_params (query) == 0) {
+    GstAllocator *allocator;
+
+    allocator = gst_allocator_find (GST_ALLOCATOR_SYSMEM);
+    gst_query_add_allocation_param (query, allocator, NULL);
+    gst_object_unref (allocator);
+  }
+  gst_query_add_allocation_param (query, plugin->sinkpad_allocator, NULL);
+
   gst_query_add_allocation_meta (query, GST_VAAPI_VIDEO_META_API_TYPE, NULL);
   gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
   return TRUE;
-- 
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File gst-vaapi-plugins-handle-vaapi-allocator.patch of Package gstreamer-plugins-vaapi (Revision d0b8d5426f0b71f840cb49c4c74c7e14)

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